Mitsubishi Heavy Industries FDC112KXEN6 Technical Manual
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Mitsubishi Heavy Industries FDC112KXEN6 Technical Manual

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Table of Contents

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INVERTER DRIVEN MULTI-INDOOR UNIT
CLIMATE CONTROL SYSTEM
Alternative refrigerant R410A use models
KX6 series
(Heat pump type)
FDC112KXEN6, 140KXEN6, 155KXEN6 (1 phase)
FDC112KXES6, 140KXES6, 155KXES6 (3 phase)
(INDOOR UNIT) -KX6 series-
FDT28KXE6
36KXE6
45KXE6
56KXE6
71KXE6
90KXE6
112KXE6
140KXE6
160KXE6
FDUM22KXE6
28KXE6
36KXE6
45KXE6
56KXE6
71KXE6
90KXE6
112KXE6
140KXE6
FDTC22KXE6
FDTW28KXE6
28KXE6
45KXE6
36KXE6
56KXE6
45KXE6
71KXE6
56KXE6
90KXE6
112KXE6
140KXE6
FDQS22KXE6
FDK22KXE6
28KXE6
28KXE6
36KXE6
36KXE6
45KXE6
45KXE6
56KXE6
56KXE6
Manual No. '08
FDTS45KXE6
FDTQ22KXE6
71KXE6
28KXE6
36KXE6
FDE36KXE6
FDFL28KXE6
45KXE6
45KXE6
56KXE6
71KXE6
71KXE6
112KXE6
140KXE6
KX-T-117
•
FDU71KXE6
90KXE6
112KXE6
140KXE6
FDFU28KXE6
45KXE6
56KXE6
71KXE6

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Summary of Contents for Mitsubishi Heavy Industries FDC112KXEN6

  • Page 1 KX-T-117 • INVERTER DRIVEN MULTI-INDOOR UNIT CLIMATE CONTROL SYSTEM Alternative refrigerant R410A use models (OUTDOOR UNIT) KX6 series (Heat pump type) FDC112KXEN6, 140KXEN6, 155KXEN6 (1 phase) FDC112KXES6, 140KXES6, 155KXES6 (3 phase) (INDOOR UNIT) -KX6 series- FDT28KXE6 FDTC22KXE6 FDTW28KXE6 FDTS45KXE6 FDTQ22KXE6...

  • Page 2: Combination Table

    PREFACE KX4-6 series, KXR4-6 series allowed Indoor & Outdoor unit combinations Combination table Indoor unit Same or Connecgtable Same series Same series Same series Mixed series Mixed series Mixed series Mixed series Same series Mixed serie remote controller KXE4 KXE4(A) KXE4A KXE4A KXE4A...

  • Page 3: Table Of Contents

    CONTENTS 1 GENERAL INFORMATION................1 1.1 Specific features ................... 1 1.2 How to read the model name ................ 2 1.3 Table of models ..................... 3 1.4 Table of indoor units panel (Optional) ............3 1.5 Outdoor units combination table ..............3 2 OUTDOOR UNIT ....................

  • Page 4: Table Of Contents

    4.5 Application data ..................170 (1) Installation of indoor unit ..............171 (a) Ceiling cassette-4 way type (FDT) ............ 171 (b) Ceiling cassette-4 way compact type (FDTC) ........179 (c) Ceiling cassette-2 way type (FDTW) ..........184 (d) Ceiling cassette-1 way type (FDTS) ..........189 (e) Ceiling cassette-1 way compact type (FDTQ) ........

  • Page 5: General Information

    KX6 Ultra Compact series can connect indoor unit capacity up to 150% from 130% of previous models. • Capacity from 80% to 150% is possible Item Number of connectable Connectable capacity Model FDC112KXEN6 1 to 6 units 90 ~ 168 FDC112KXES6 FDC140KXEN6 112 ~ 210...

  • Page 6: How To Read The Model Name

    How to read the model name (1) Outdoor unit Example: FDC 140 KX EN 6 Series No. Application power source...See the specifications Multi KX Nominal capacity (nominal cooling capacity : 14.0kW) Model name (Outdoor unit) (2) Indoor unit Example: FDT 28 KX Series No.

  • Page 7: Table Of Models

    (FDK) Ceiling suspended type (FDE) Floor standing (with casing) type (FDFL) Floor standing (without casing) type (FDFU) Outdoor units to be combined FDC112KXEN6, 140KXEN6, 155KXEN6 FDC112KXES6, 140KXES6, 155KXES6 Table of indoor units panel (Optional) Model Parts Model FDTC TC-PSA-24W-ER Capacity:22,28,36,45,56...

  • Page 8: Outdoor Unit

    OUTDOOR UNIT 2.1 Specifications Models FDC112KXEN6, 140KXEN6, 155KXEN6 (50/60 Hz) Model FDC112KXEN6 FDC140KXEN6 FDC155KXEN6 Item Power source 1 Phase 220-240V 50Hz/220V 60Hz Nominal cooling capacity 11.2 14.0 15.5 Nominal heating capacity 12.5 16.0 16.3 Noise level dB(A) 52/54 53/55 53/56...
  • Page 9 Models FDC112KXES6, 140KXES6, 155KXES6 (50/60 Hz) Model FDC112KXES6 FDC140KXES6 FDC155KXES6 Item Power source 3 Phase 380-415V 50Hz/380V 60Hz Nominal cooling capacity 11.2 14.0 15.5 Nominal heating capacity 12.5 16.0 16.3 52/54 53/56 Noise level dB(A) 53/55 Exterior dimensions Height Width Depth Net weight Exterior appearance (color)

  • Page 10: Exterior Dimensions

    2.2 Exterior dimensions Models All models Unit: mm Mark Item Service valve connection (gas side) ø5/8" (15.88) (flare) Service valve connection (liquid line) ø3/8" (9.52) (flare) 4 places Pipe/cable draw-out port Drain discharge port ø20 x 3 places Anchor bolt hole M10 x 4 places Cable draw-out port ø30 x 3 places...

  • Page 13: Noise Level

    Measured based on JIS B 8616 Mike position as highest noise level in position as below Distance from front side 1m Height Models FDC112KXEN6 112KXES6 Noise level 52 dB (A) at 50Hz Noise level 54 dB (A) at 60Hz 1000...

  • Page 14: Indoor Unit

    INDOOR UNIT 3.1 Specifications (a) Ceiling cassette-4 way type (FDT) Models FDT28KXE6, 36KXE6 Models FDT28KXE6 FDT36KXE6 Item Nominal cooling capacity* Nominal heating capacity* Power source 1 Phase 220-240V 50Hz/220V 60Hz Noise level dB(A) Hi: 35 Me: 33 Lo: 31 Exterior dimensions Unit:246 Panel:35 Height...
  • Page 15 Models FDT45KXE6, 56KXE6, 71KXE6 Models FDT45KXE6 FDT56KXE6 FDT71KXE6 Item Nominal cooling capacity* Nominal heating capacity* Power source 1 Phase 220-240V 50Hz/220V 60Hz Noise level dB(A) Hi: 35 Me: 33 Lo: 31 Hi: 35 Me: 33 Lo: 31 Hi: 35 Me: 33 Lo: 31 Exterior dimensions Unit:246 Panel:35...
  • Page 16 Models FDT90KXE6, 112KXE6, 140KXE6, 160KXE6 Models FDT90KXE6 FDT112KXE6 FDT140KXE6 FDT160KXE Item Nominal cooling capacity* 11.2 14.0 16.0 Nominal heating capacity* 10.0 12.5 16.0 18.0 Power source 1 Phase 220-240V 50Hz/220V 60Hz Noise level dB(A) Hi: 42 Me: 39 Lo: 36 Hi: 45 Me: 43 Lo: 40 Hi: 45 Me: 43 Lo: 41 Exterior dimensions...

  • Page 17: B) Ceiling Cassette-4 Way Compact Type (Fdtc)

    (b) Ceiling cassette-4 way compact type (FDTC) Models FDTC22KXE6, 28KXE6 Models FDTC22KXE6 FDTC28KXE6 Item Nominal cooling capacity* Nominal heating capacity* Power source 1 Phase 220-240V 50Hz/220V 60Hz Noise level dB(A) Hi: 35 Me: 33 Lo: 32 Exterior dimensions Unit:248 Panel:35 Height Width Depth...
  • Page 18 Models FDTC36KXE6, 45KXE6, 56KXE6 Models FDTC36KXE6 FDTC45KXE6 FDTC56KXE6 Item Nominal cooling capacity* Nominal heating capacity* Power source 1 Phase 220-240V 50Hz/220V 60Hz Noise level dB(A) Hi: 38 Me: 36 Lo: 34 Hi: 40 Me: 38 Lo: 36 Hi: 45 Me: 42 Lo: 39 Exterior dimensions Unit:248 Panel:35...

  • Page 19: C) Ceiling Cassette-2 Way Type (Fdtw)

    (c) Ceiling cassette-2 way type (FDTW) Models FDTW28KXE6, 45KXE6, 56KXE6 Models FDTW28KXE6 FDTW45KXE6 FDTW56KXE6 Item Nominal cooling capacity* Nominal heating capacity* Power source 1 phase 220-240V 50Hz/220V 60Hz Noise level dB(A) Hi: 39 Me: 34 Lo: 32 Exterior dimensions Unit:287 Panel:8 1055 Height...
  • Page 20 Models FDTW71KXE6, 90KXE6 Models FDTW71KXE6 FDTW90KXE6 Item Nominal cooling capacity* Nominal heating capacity* 10.0 Power source 1 Phase 220-240V 50Hz Noise level dB(A) Hi: 41 Me: 36 Lo: 35 Hi: 41 Me: 37 Lo: 36 Exterior dimensions Unit:342 1054 Panel:8 1300 Height Width...
  • Page 21 Models FDTW112KXE6, 140KXE6 Models FDTW112KXE6 FDTW140KXE6 Item Nominal cooling capacity* 11.2 14.0 Nominal heating capacity* 12.5 16.0 Power source 1 Phase 220-240V 50Hz Noise level dB(A) Hi: 44 Me: 38 Lo: 37 Hi: 45 Me: 41 Lo: 39 Exterior dimensions Unit:357 1524 Panel:8...

  • Page 22: D) Ceiling Cassette-1 Way Type (Fdts)

    (d) Ceiling cassette-1 way type (FDTS) Models FDTS45KXE6, 71KXE6 Models FDTS45KXE6 FDTS71KXE6 Item Nominal cooling capacity* Nominal heating capacity* Power source 1 Phase 220-240V 50Hz/220V 60Hz Noise level dB(A) Hi: 43 Me: 38 Lo: 36 Hi: 44 Me: 38 Lo: 36 Exterior dimensions Unit:194 1040...

  • Page 23: E) Ceiling Cassette-1 Way Compact Type (Fdtq)

    (e) Ceiling cassette-1 way compact type (FDTQ) Models FDTQ22KXE6 Model FDTQ22KXE6 Item Panel name Direct blow panel Duct panel Panel model(Option) TQ-PSA-15W-E TQ-PSB-15W-E QR-PNA-14W-ER QR-PNB-14W-ER Nominal cooling capacity* Nominal heating capacity* Power source 1 Phase, 220-240V 50Hz/220V 60Hz Noise level dB(A) Hi: 38 Lo: 33 Hi: 42 Lo: 39...
  • Page 24 Models FDTQ28KXE6 Model FDTQ28KXE6 Item Panel name Direct blow panel Duct panel Panel model(Option) TQ-PSA-15W-E TQ-PSB-15W-E QR-PNA-14W-ER QR-PNB-14W-ER Nominal cooling capacity* Nominal heating capacity* Power source 1 Phase, 220-240V 50Hz/220V 60Hz Noise level dB(A) Hi: 38 Lo: 33 Hi: 42 Lo:39 Unit:250 570 570 Unit:250 570 570 Unit:250 570 570...
  • Page 25 Models FDTQ36KXE6 Model FDTQ36KXE6 Item Panel name Direct blow panel Duct panel Panel model(Option) TQ-PSA-15W-E TQ-PSB-15W-E QR-PNA-14W-ER QR-PNB-14W-ER Nominal cooling capacity* Nominal heating capacity* Power source 1 Phase, 220-240V 50Hz/220V 60Hz Noise level dB(A) Hi: 38 Lo: 33 Hi: 42 Lo:39 Unit:250 570 570 Unit:250 570 570 Unit:250 570 570...

  • Page 26: F) Duct Connected-High Static Pressure Type (Fdu)

    Duct connected-High static pressure type (FDU) Models FDU71KXE6, 90KXE6 Models FDU71KXE6 FDU90KXE6 Item Nominal cooling capacity* Nominal heating capacity* 10.0 Power source 1 Phase 220-240V 50Hz Noise level dB(A) Hi: 41, Lo: 37 Hi: 42, Lo: 37 Exterior dimensions 1370 Height Width Depth...
  • Page 27 Models FDU112KXE6, 140KXE6 Models FDU112KXE6 FDU140KXE6 Item Nominal cooling capacity* 11.2 14.0 Nominal heating capacity* 12.5 16.0 Power source 1 Phase 220-240V 50Hz Noise level dB(A) Hi: 42, Lo: 38 Hi: 43, Lo: 39 Exterior dimensions 1370 Height Width Depth Net weight Refrigerant equipment Louver fin &...

  • Page 28: G) Duct Connected-Low/Middle Static Pressure Type (Fdum)

    (g) Duct connected-Low/Middle static pressure type (FDUM) Models FDUM22KXE6, 28KXE6 Models FDUM22KXE6 FDUM28KXE6 Item Nominal cooling capacity* Nominal heating capacity* Power source 1 Phase 220-240V 50Hz/220V 60Hz Noise level dB(A) Hi: 33 Me: 31 Lo: 28 Hi: 34 Me: 31 Lo: 28 Exterior dimensions Height Width...
  • Page 29 Models FDUM36KXE6, 45KXE6, 56KXE6 Models FDUM36KXE6 FDUM45KXE6 FDUM56KXE6 Item Nominal cooling capacity* Nominal heating capacity* Power source 1 Phase 220-240V 50Hz/220V 60Hz Noise level dB(A) Hi: 34 Me: 31 Lo: 28 Hi: 35 Me: 32 Lo: 29 Exterior dimensions Height Width Depth Net weight...
  • Page 30 Models FDUM71KXE6, 90KXE6 Models FDUM71KXE6 FDUM90KXE6 Item Nominal cooling capacity* Nominal heating capacity* 10.0 Power source 1 Phase 220-240V 50Hz/220V 60Hz Noise level dB(A) Hi: 35 Me: 32 Lo: 29 Hi: 36 Me: 33 Lo: 30 Exterior dimensions Height Width Depth Net weight Refrigerant equipment...
  • Page 31 Models FDUM112KXE6, 140KXE6 Models FDUM112KXE6 FDUM140KXE6 Item Nominal cooling capacity* 11.2 14.0 Nominal heating capacity* 12.5 16.0 Power source 1 Phase 220-240V 50Hz/220V 60Hz Noise level dB(A) Hi: 37 Me: 35 Lo: 32 Hi: 38 Me: 36 Lo: 33 Exterior dimensions 1370 Height Width...

  • Page 32: H) Duct Connected (Ultra Thin)-Low Static Pressure Type (Fdqs)

    (h) Duct connected (Ultra thin)-Low static pressure type (FDQS) Models FDQS22KXE6, 28KXE6, 36KXE6 Models FDQS22KXE6 FDQS28KXE6 FDQS36KXE6 Item Nominal cooling capacity* Nominal heating capacity* Power source 1 Phase 220-240V 50Hz Noise level dB(A) Rear air return Hi:37 Me:35 Lo:33 Bottom air return Hi:43 Me:41 Lo:39 Exterior dimensions Height Width...
  • Page 33 Models FDQS45KXE6, 56KXE6 Models FDQS45KXE6 FDQS56KXE6 Item Nominal cooling capacity* Nominal heating capacity* Power source 1 Phase 220-240V 50Hz Noise level dB(A) Rear air return Hi:37 Me:35 Lo:33 Bottom air return Hi:43 Me:41 Lo:39 Exterior dimensions Height Width Depth Net weight Refrigerant equipment Louver fin &...
  • Page 34 Wall mounted type (FDK) Models FDK22KXE6, 28KXE6, 36KXE6 Models FDK22KXE6 FDK28KXE6 FDK36KXE6 Item Nominal cooling capacity* Nominal heating capacity* Power source 1 Phase 220-240V 50Hz/220V 60Hz Noise level dB(A) Hi: 40 Me: 39 Lo: 37 Hi: 41 Me: 39 Lo: 37 Exterior dimensions Height Width...
  • Page 35 Models FDK45KXE6, 56KXE6, 71KXE6 Models FDK45KXE6 FDK56KXE6 FDK71KXE6 Item Nominal cooling capacity* Nominal heating capacity* Power source 1 Phase 220-240V 50Hz/220V 60Hz Noise level dB(A) Hi: 41 Me: 39 Lo: 37 Hi: 46 Me: 39 Lo: 37 Hi: 47 Me: 43 Lo: 39 Exterior dimensions 1098 Height...

  • Page 36: J) Ceiling Suspended Type (Fde)

    Ceiling suspended type (FDE) Models FDE36KXE6, 45KXE6 Models FDE36KXE6 FDE45KXE6 Item Nominal cooling capacity* Nominal heating capacity* Power source 1 Phase 220-240V 50Hz/220V 60Hz Noise level dB(A) Hi: 39 Me: 38 Lo: 36 Exterior dimensions 1070 Height Width Depth Net weight Refrigerant equipment Louver fin &...
  • Page 37 Models FDE56KXE6, 71KXE6 Models FDE56KXE6 FDE71KXE6 Item Nominal cooling capacity* Nominal heating capacity* Power source 1 Phase 220-240V 50Hz/220V 60Hz Noise level dB(A) Hi: 39 Me: 38 Lo: 36 Hi: 41 Me: 39 Lo: 37 Exterior dimensions 1070 1320 Height Width Depth Net weight...
  • Page 38 Models FDE112KXE6, 140KXE6 Models FDE112KXE6 FDE140KXE6 Item Nominal cooling capacity* 11.2 14.0 Nominal heating capacity* 12.5 16.0 Power source 1 Phase 220-240V 50Hz/220V 60Hz Noise level dB(A) Hi: 44 Me: 41 Lo: 39 Hi: 46 Me: 44 Lo: 43 Exterior dimensions 1620 Height Width...

  • Page 39: K) Floor Standing (With Casing) Type (Fdfl)

    (k) Floor standing (with casing) type [FDFL] Models FDFL28KXE6, 45KXE6, 71KXE6 Models FDFL28KXE6 FDFL45KXE6 FDFL71KXE6 Item Nominal cooling capacity* Nominal heating capacity* Power source 1 Phase 220-240V 50Hz Noise level dB(A) Hi: 41 Me:38 Lo: 36 Hi: 43 Me:41 Lo: 40 Exterior dimensions 1196 1481...

  • Page 40: L) Floor Standing (Without Casing) Type (Fdfu)

    Floor standing (without casing) type [FDFU] Models FDFU28KXE6, 45KXE6, 56KXE6, 71KXE6 Models FDFU28KXE6 FDFU45KXE6 FDFU56KXE6 FDFU71KXE6 Item Nominal cooling capacity* Nominal heating capacity* Power source 1 Phase 220-240V 50Hz Noise level dB(A) Hi: 41 Me:38 Lo: 36 Hi: 43 Me:41 Lo: 40 Exterior dimensions 1077 1362...
  • Page 41 3.2 Exterior dimensions Indoor unit (a) Ceiling cassette-4 way type (FDT) Models FDT28KXE6, 36KXE6, 45KXE6, 56KXE6, 71KXE6 Unit:mm Decorative Panel (Ceiling hole size) 860~890 ▫950 (Suspension bolts pitch) ▫630 Control Air supply Air return grille Drain hose piece (Accessory) Symbol Content (Installed at site) FDT36KXE6,...
  • Page 42 Models FDT90KXE6, 112KXE6, 140KXE6, 160KXE6 Unit:mm Decorative Panel (Ceiling hole size) 860~890 ▫950 (Suspension bolts pitch) ▫630 Control Air supply Air return grille Drain hose piece (Accessory) Symbol Content ▫840 (Installed at site) Gas piping 15.88(5/8'')(Flare) Liquid piping 9.52(3/8'')(Flare) Hanger plate for Drain piping VP20 Note (2) suspension bolt...
  • Page 43 (b) Ceiling cassette-4 way type (FDTC) Models FDTC22KXE6, 28KXE6, 36KXE6, 45KXE6, 56KXE6 Unit:mm ▫660 (Ceiling hole size) Outlet air opening for Decorative Panel 530 Suspension bolts pitch ducting Air return Control Air supply grille ▫413 ▫700 Drain hose piece Opening for (Accessory) exit wiring (Installed at site)
  • Page 44 (c) Ceiling cassette-2 way type (FDTW) Models FDTW28KXE6, 45KXE6, 56KXE6 Unit : mm Drain hose piece (Ceiling hole size) 1015 (Accessory) (Suspension bolts pitch) (Installed at site) Holes of tapping screws Suspension bolts φ4 (M10 × 4 pcs.) Control Hole Center of panel Suspension...
  • Page 45 Models FDTW71KXE6, 90KXE6 Unit : mm Drain hose piece (Ceiling hole size) 1260 (Accessory) Holes of (Suspension bolts pitch) (Installed at site) 1130 taping screws Suspension bolts 5 – φ4 (M10 × 4 pcs.) Control Hole 82.5 Center of Suspension panel fitting Outside...
  • Page 46 Models FDTW112KXE6, 140KXE6 Unit: mm Drain hose piece 1730 (Ceiling hole size) (Accessory) Holes for (Installed at site) 1600 (Suspension bolts pitch) tapping screws Suspension bolts 5-ø4 (M10 × 4 pcs.) Control Hole 80.5 Center of panel Suspension fitting Outside air opening for ducting (knock out)
  • Page 47 (d) Ceiling cassette-1 way type (FDTS) Model FDTS45KXE6 Outside Unit : mm opening for ducting Outside Outside (Knock out) ↓ opening for ducting opening for ducting Holes for tapping screws (Ceiling hole size) 1230 (knock out) (Knock out) (φ4-6pcs.) (Suspension bolts pitch) B→...
  • Page 48 Model FDTS71KXE6 Unit : mm Outside Outside opening for ducting opening for ducting Outside (Ceiling hole size) 1440 (Knock out) (knock out) opening for ducting Holes for tapping screws (Suspension bolts pitch) (φ4-6pcs.) (knock out) 1250 Panel center VIEW A Drain hose piece (Accessory) (Installed at site)
  • Page 49 (e) Ceiling cassette-1 way compact type (FDTQ) Models FDTQ22KXE6, 28KXE6, 36KXE6 Direct blow panel (TQ-PSA-15W-E) Unit : mm Gas piping 22, 28: φ9.52(3/8´´) Holes for 36: φ12.7(1/2´´) tapping screws Supply air duct φ4-12pcs. (Knock out) Liquid piping φ6.35(1/4´´) Drain (Connectable with VP20) Opening for exit wiring...
  • Page 50 Models FDTQ22KXE6, 28KXE6, 36KXE6 Direct blow panel (TQ-PSB-15W-E) Unit : mm Gas piping 22, 28: φ9.52(3/8´´) Holes for 36: φ12.7(1/2´´) tapping screws Supply air duct (Knock out) φ4-12pcs. Liquid piping φ6.35(1/4´´) Drain (Connectable with VP20) Opening for exit wiring (Ceiling hole size) Drain hose piece VIEW B (Suspension bolts Pitch)
  • Page 51 ● When modified to the Duct panel type on site. Models FDTQ22KXE6, 28KXE6 36KXE6 Duct panel (QR-PNA-14W-ER) Unit : mm Gas piping 22, 28: φ9.52(3/8´´) Holes for 36: φ12.7(1/2´´) tapping screws φ4-12pcs. Supply air duct Liquid piping φ6.35(1/4´´) Drain (Connectable with VP20) Opening for exit wiring...
  • Page 52 ● When modified to the Duct Cassetteria type on site. Models FDTQ22KXE6, 28KXE6, 36KXE6 Duct panel (QR-PNB-14W-ER) Unit : mm Gas piping 22, 28: φ9.52(3/8´´) Holes for tapping screws 36: φ12.7(1/2´´) φ4-12pcs. Supply air duct Liquid piping φ6.35(1/4´´) Drain (Connectable with VP20) Opening for exit wiring...
  • Page 53 Duct connected-High static pressure type (FDU) Model FDU71KXE6 Unit:mm (Suspension bolts pitch) Control box Drain hose piece 10- 4 10- 4 (Installed on site) 292~325 Holes for Holes for (Installed on site) tapping screws tapping screws Hanger plate for Air supply Return air duct suspension bolt 16 848 (Duct dimension)
  • Page 54 Models FDU90KXE6, 112KXE6, 140KXE6 Unit:mm (Suspension bolts pitch) Control box Hanger plate for 14- 4 suspension bolt Holes for 295~325 tapping screws Air supply 4X325=1300 1368 (Duct dimension) 14- 4 Holes for Drain hose piece tapping screws (Accessory) Return air duct (Installed on site) 4X325=1300 1368 (Duct dimension)
  • Page 55 (g) Duct connected-Low/Middle static pressure type (FDUM) Models FDUM22KXE6 Unit:mm (Suspension bolts pitch) Holes for Hole of tapping screws tapping screws (4- 4) 80.5 Control box ▫90 Liquid piping Fresh air opening for ducting 6.35(1/4'') Outlet air opening for ducting Gas piping (Knock out) (Knock out)
  • Page 56 Models FDUM28KXE6, 36KXE6, 45KXE6, 56KXE6 Unit:mm (Suspension bolts pitch) Holes for Hole of tapping screws tapping screws (4- 4) 80.5 Control box ▫90 Liquid piping Fresh air opening for ducting 6.35(1/4'') Outlet air opening for ducting Gas piping (Knock out) (Knock out) 36, 45, 56: 12.7(1/2'')
  • Page 57 Models FDUM71KXE6, 90KXE6, Unit:mm (Suspension bolts pitch) Holes for Holes of tapping screws tapping screws (4- 4) 80.5 Control box Drain hose piece (Accessory) (Installed on site) Liquid piping ▫90 Fresh air opening 9.52(3/8'') for ducting Outlet air opening for ducting Gas piping (Knock out) (Knock out)
  • Page 58 Models FDUM112KXE6, 140KXE6, Unit:mm (Suspension bolts pitch) 1406 1370 Holes of tapping screws (4- 4) 80.5 Control box Drain hose piece (Accessory) (Installed on site) ▫90 Fresh air opening Liquid piping for ducting 9.52(3/8'') Outlet air opening for ducting (Knock out) Gas piping (Knock out) 15.88(5/8'')
  • Page 59 (h) Duct connected (Ultra thin)-Low static pressure type (FDQS) Models FDQS22, 28, 36, 45, 56KXE6 (Rear air return type) Unit:mm Space for installation and service Obstacle 12- 4 Holes for tapping screws 910 (Duct dimension) 274 46 View from bottom 4X200=800 side of the unit Return air duct...
  • Page 60 Models FDQS22, 28, 36, 45, 56KXE6 (Underside air return type) Unit:mm Space for installation and service Obstacle 12- 4 Holes for tapping screws 910 (Duct dimension) 255 65 View from bottom 4X200=800 side of the unit Return air duct Obstacle (Celing-return type) Underside-intake Underside-intake type...
  • Page 61 Wall mounted type (FDK) Models FDK22KXE6, 28KXE6, 36KXE6, 45KXE6, 56KXE6 Unit:mm 60 14.5 Outlet for down piping (Refer to the above view) Unit (Service (Service space) space) Mounting plate 73.5 207.5 182.5 4-12X18 (Slot hole) 53.5 63.5 2-5X17.5 (Slot hole) 533.5 Space for installation and service when viewing from the front Symbol...
  • Page 62 Model FDK71KXE6 Unit:mm 1090 43.5 1098 Outlet for electric wiring Outlet for piping Outlet for piping (On both side) Mounting plate Service space Service space 4-12X18 Indoor unit (Long hole) 53.5 633.5 2-5X17.5 Hole on wall for 703.5 (Long hole) rear connection Drain hose Hole on wall for...
  • Page 63 Ceiling suspended type (FDE) Models FDE36KXE6, 45KXE6, 56KXE6 Unit : mm Holes for suspension bolts (M8 to M10×4pcs.Not included) 290(Suspension bolts pitch) 1022(Suspension bolts pitch) Liquid piping Gas piping Drain hole connection(1) 1070 (VP20) Air supply grille Note(1) The slope of drain piping inside the unit is able to take decline of 10mm.
  • Page 64 Models FDE112KXE6, 140KXE6 Unit : mm Holes for suspension bolts 290(Suspension bolts pitch) (M8 to M10×4pcs.Not included) 1572(Suspension bolts pitch) Liquid piping Gas piping 1540 Drain hole connection(1) 1620 (VP20) Air supply grille Note(1) The slope of drain piping inside the unit is able to take decline of 10mm.
  • Page 65 (k) Floor standing (with casing) type (FDFL) Models FDFL28KXE6, 45KXE6, 71KXE6 Unit : mm Note (1) Value in ( ) indicates 71 type. Unit : mm Space for installation and service Floor piping space Slotted hole for wall mounting (1071) 4-12×24 more Remote-controller...
  • Page 66 (2) Remote controller (Optional parts) • Wired remote controller (Model: RC-E3) Unit : mm Installation with wiring exposed Installation with wiring recessed Wall 0.3mm , 2 cores (O.D.ø5.6) Wire (Recessed) LCD display Electrical box (Locally Purchased) Remote controller mounting dimensions Cut off with a knife or the like Remote controller thin walled parts intended for...
  • Page 67 Remote Control PCB controller ThI-R1 Signal line CNK1 (Shielded cord) ThI-R2 Signal line Connector for branching between indoor units controllerof heat recovery ThI-R3 3-pipe systems Y/GN Power PCB Y/GN CNW2 CNW3 F200(3.15A) Power source LED • 2 LED • 3 ThI-A Power Power source...
  • Page 68 Remote controller Control PCB CNI2 Signal line CNK1 (Shielded cord) ThI-A Signal line between indoor units CNH2 ThI-R1 Power PCB Connector for branching controller Y/GN of heat recovery 3-pipe systems Y/GN CNN3 CNW3 CNW2 F200(3.15A) Power source Power source line Power Circuit Single-phase ThI-R2...
  • Page 69 ThI-R1 ThI-R2 ThI-R3 ThI-A Power source line Connector for branching between indoor units controller of heat recovery 220-240V 3-pipe systems CNS2 Power source Single-phase 220-240V~50Hz 220V~60Hz 1 2 3 4 5 6 CNW1 CNW2 Power F(3.15A) LED • 2 LED • 3 SW1 JSL1 source SW3 SW4...
  • Page 70 Power source line ThI-R1 ThI-R2 ThI-R3 ThI-A between indoor units Connector for branching controller of heat recovery 220-240V 3-pipe systems CNS2 Power source Single-phase 220-240V~50Hz 1 2 3 4 5 6 CNW1 CNW2 Power F(3.15A) source LED • 2 LED • 3 SW1 JSL1 SW3 SW4 line...
  • Page 71 Power source line ThI-R1 ThI-R2 ThI-R3 ThI-A between indoor units Connector for branching controller of heat recovery 220-240V 3-pipe systems CNS2 Power source Single-phase 220-240V~50Hz 1 2 3 4 5 6 CNW1 CNW2 Power F(3.15A) source LED • 2 LED • 3 SW1 JSL1 SW3 SW4 line...
  • Page 72 SW3 SW4 CNL6 ThI-R1 ThI-R2 ThI-R3 ThI-A 1011 Connector for branching CNA2 controller of heat recovery Power source line 3-pipe systems between indoor units 220-240V CNN2 Power source (Single-phase) 220-240V~50Hz 1 2 3 4 5 6 CNL5 CNL1 CNL2 CNL4 CNL3 CNW1 CNW2...
  • Page 73 SW3 SW4 ThI-R1 ThI-R2 ThI-R3 ThI-A CNL6 1011 Connector for branching CNA2 Power source line controller of heat recovery 3-pipe systems between indoor units CNN2 220-240V Power source (Single-phase) 220-240V~50Hz 1 2 3 4 5 6 CNL5 CNL1 CNL2 CNL4 CNL3 CNW1 CNW2...
  • Page 74 Power source line ThI-R1 ThI-R2 ThI-R3 ThI-A between indoor units Tr I Connector for branching controller of heat recovery 220-240V 3-pipe systems CNS2 CNA2 CNN2 Power source (Single-phase) 220-240V~50Hz 1 2 3 4 5 6 220V~60Hz CNW1 CNW2 Power source F(3.15A) LED •...
  • Page 75 Power source line ThI-R1 ThI-R2 ThI-R3 ThI-A between indoor units Tr I Connector for branching controller of heat recovery 220-240V 3-pipe systems CNS2 CNA2 CNN2 Power source (Single-phase) 220-240V~50Hz 1 2 3 4 5 6 220V~60Hz CNW1 CNW2 Power source line F(3.15A) LED •...
  • Page 76 Connector for branching controller of heat recovery ThI-R1 ThI-R2 ThI-R3 ThI-A 3-pipe systems Tr I 220-240V Power source line between indoor units Power source (Single-phase) Control PCB CNW2 220-240V~50Hz CNW1 Power source F(3.15A) line LED • 2 F(3.15A) CNW0 Y/GN Earth LED •...
  • Page 77 ThI-R1 ThI-R2 ThI-R3 ThI-A Connector for branching 220-240V controller of heat recovery 3-pipe systems Power source line between indoor units Power source Option (Single-phase) Control PCB CNW1 CNW2 220-240V~50Hz (Operation) 220V~60Hz (Heating) Power source F(3.15A) LED • 2 (Thermo ON) line JSL1 CNW0...
  • Page 78 ThI-R1 ThI-R2 ThI-R3 ThI-A Connector for branching 220-240V controller of heat recovery 3-pipe systems Power source line between indoor units Power source Option (Single-phase) Control PCB CNW1 CNW2 220-240V~50Hz (Operation) 220V~60Hz (Heating) Power source F(3.15A) LED • 2 (Thermo ON) line JSL1 CNW0...
  • Page 79 Power source line ThI-R1 ThI-R2 ThI-R3 ThI-A between indoor units Tr I Connector for branching controller of heat recovery 3-pipe systems 220-240V CNA2 CNN3 CNN4 CNN5 Power source (Single-phase) 220-240V~50Hz 1 2 3 4 5 6 CNW1 CNW2 Power source line F(3.15A) LED •...
  • Page 80 Meaning of marks Tr I Connector CNA~Z Power source (Single-phase) F,F202 Fuse 220-240V~50Hz 220-240V 220V~60Hz Fan motor (with thermostat) ThI-R1 ThI-R2 ThI-R3 ThI-A Live Superlink terminal setting (for spare) JSL1 Power source line LED . 2 Indication lamp (Green-Normal operation) between indoor units Connector for branching LED .
  • Page 81 Meaning of marks Tr I Connector CNA~Z Power source (Single-phase) F,F202 Fuse 220-240V~50Hz 220-240V 220V~60Hz Fan motor (with thermostat) ThI-R1 ThI-R2 ThI-R3 ThI-A Live Superlink terminal setting (for spare) JSL1 Power source line LED . 2 Indication lamp (Green-Normal operation) between indoor units LED .
  • Page 82 ThI-R1 ThI-R2 ThI-R3 ThI-A Tr I Power source line Connector for branching between indoor units controller of heat recovery 220-240V 3-pipe systems CNN3 CNN4 CNN5 CNA2 Power source (Single-phase) 220-240V~50Hz Option 1 2 3 4 5 1 2 3 4 5 6 220V~60Hz CNW1 CNW2...
  • Page 83 ThI-R1 ThI-R2 ThI-R3 ThI-A Tr I Power source line Connector for branching between indoor units controller of heat recovery 220-240V 3-pipe systems CNN3 CNN4 CNN5 CNA2 Power source (Single-phase) 220-240V~50Hz Option 1 2 3 4 5 6 220V~60Hz 1 2 3 4 5 CNW1 CNW2 (Operation)
  • Page 84 ThI-R1 ThI-R2 ThI-R3 ThI-A Connector for branching Tr I controller of heat recovery 220-240V 3-pipe systems Power source line between indoor units CNA2 CNN3 CNN4 CNN5 CNH2 Power source (Single-phase) 220-240V~50Hz 1 2 3 4 5 6 CNW1 CNW2 CNA RD Power source F(3.15A) line...
  • Page 85 ThI-R1 ThI-R2 ThI-R3 ThI-A Connector for branching Tr I controller of heat recovery 220-240V 3-pipe systems Power source line between indoor units CNA2 CNN3 CNN4 CNN5 CNH2 Power source (Single-phase) 220-240V~50Hz 1 2 3 4 5 6 CNW1 CNW2 CNA RD Power source F(3.15A) line...

  • Page 86: Exterior Appearance

    3.4 Exterior appearance (a) Ceiling cassette-4 way type (FDT) (b) Ceiling cassette-4 way compact type (FDTC) ¡ Decorative panel ¡ Decorative panel Plaster white Plaster white (c) Ceiling cassette-2 way type (FDTW) Air return Air supply ¡ Decorative panel Standard type Panel part No.
  • Page 87 (d) Ceiling cassette-1 way type (FDTS) Panel Air return grille Plaster white Plaster white ¡ Decorative panel Panel part No. Type Panel color Applicable model TS-PSA-29W-E FDTS45 With Auto swing Plaster white TS-PSA-39W-E FDTS71 (e) Ceiling cassette-1 way type (FDTQ) This illustration shows the direct blow panel (TQ-PSA-15W-E).
  • Page 88 Duct connected-High static pressure type (FDU)..........Zinc steel plate (g) Duct connected-Low/Middle static pressure type (FDUM) ......... Zinc steel plate (h) Duct connected (Ultra thin)-Low static pressure type (FDQS)......Zinc steel plate Ceiling suspension type (FDE) Light gray (Vertical louver) Light gray (Horizontal louver) Plaster white Plaster white...

  • Page 89: Characteristics Of Fan

    3.5 Characteristics of fan (1) Ceiling cassette-1 way compact type (FDTQ) (Only when FDTQ22, 28 and 36 model are used for the Duct panel type.) Models FDTQ22, 28 36KXE6 Lower Upper limit limit Air flow(m /min) (2) Duct connected-Low/Middle static pressure (FDUM) •...
  • Page 90 Model FDUM22KXE6 50Hz 60Hz [Standard] [Standard] 2-spot blower 2-spot blower internal resistance internal resistance Square duct blower internal resistance Square duct blower internal resistance Lower Upper Lower Upper limit limit limit limit Air flow(m /min) Air flow(m /min) Models FDUM28KXE6,36KXE6 50Hz 60Hz [Standard]...
  • Page 91 Model FDUM45KXE6, 56KXE6 50Hz 60Hz [Standard] 2-spot blower internal resistance [Standard] 2-spot blower internal resistance Square duct blower internal resistance Square duct blower internal resistance 15.5 15.5 Lower Upper Lower Upper limit limit limit limit Air flow(m /min) Air flow(m /min) Models FDUM71KXE6 50Hz...
  • Page 92 Model FDUM90KXE6 50Hz 60Hz 2-spot blower internal resistance 2-spot blower internal resistance [Standard]3-spot blower internal resistance [Standard]3-spot blower internal resistance Square duct blower internal resistance Square duct blower internal resistance Lower Upper Lower Upper Air flow(m /min) Air flow(m /min) limit limit limit...
  • Page 93 Model FDUM140KXE6 50Hz 60Hz 3-spot blower internal resistance 3-spot blower internal resistance [Standard] [Standard] 4-spot blower internal resistance 4-spot blower internal resistance Square duct blower internal resistance Square duct blower internal resistance Lower Upper Lower Upper Air flow(m /min) Air flow(m /min) limit limit...
  • Page 94 (3) Duct connected-High static pressure type (FDU) Model FDU71KXE6 Model FDU90KXE6 Standard Standard pressure pressure 20 21 22 23 24 25 26 27 28 29 30 33 34 35 Lower Upper Lower Standard Upper Standard limit limit limit air flow limit air flow Air flow(m...
  • Page 95 (4) Duct connected (Ultra thin)-Low static pressure type (FDQS) Models FDQS22, 28, 36KXE6 Static pressure Upper limit Standard : 15Pa : 30Pa Lower limit Upper limit Air flow(m /min) Models FDQS45, 56KXE6 Static pressure Upper limit Standard : 15Pa : 30Pa Lower limit Upper limit Air flow(m...
  • Page 96 3.6 Noise level Note (1) The data are based on the following conditions. Ambient air tempetature: Indoor unit 27˚C DB, 19˚C WB. Outdoor unit 35˚C DB (2) The data in the chart are measuted in an unechonic room. (3) The noise levels measured in the field are usually higher than the data because of reflection. (a) Ceiling cassette-4 way compact type (FDTC) Measured based on JIS B 8616 Mike position as right...
  • Page 97 Model FDT90KXE6, 112KXE6 Model FDT140KXE6, 160KXE6 Noise level 42 dB (A) at HIGH Noise level 45 dB (A) at HIGH 39 dB (A) at MEDIUM 43 dB (A) at MEDIUM 36 dB (A) at LOW 40 dB (A) at LOW 1000 2000 4000...
  • Page 98 (d) Ceiling cassette-1 way compact type (FDTQ) Measured based on JIS B 8616 Mike position as below 1.5m Mike (center & low points) When used as the Duct panel type Models FDTQ2KXE6, 28KXE6 Models FDTQ22KXE6, 28KXE6 36KXE6 36KXE6 Noise level 38 dB (A) at HIGH Noise level 42 dB (A) at HIGH 33 dB (A) at LOW 39 dB (A) at LOW...
  • Page 99 Model FDU140KXE6 Noise level 43 dB (A) at HIGH 49 dB (A) at LOW • Power level (Measurement conditions: JIS-B8616, measurement location: reverberation chamber) (Unit: dB) MODEL Outlet side Inlet side FDU71KXE6 FDU90, 112KXE6 FDU140KXE6 1000 2000 4000 8000 Mid Octave Band Frequency (Hz) Note (1) Values are for external static pressure of 50Pa (g) Duct connected-Low/Middle static pressure type (FDUM) Measured based on JIS B 8616...
  • Page 100 (h) Duct connected (Ultra thin)-Low static pressure type (FDQS) Unit 1.5m Measured based on JIS B 8616 Mike position as right Mike (center & low points) Model FDQS22, 28, 36KXE6 Model FDQS45, 56KXE6 Noise level (Rear air return) Noise level (Rear air return) 37 dB (A) at HIGH 37 dB (A) at HIGH Noise level...
  • Page 101 Wall mounted type (FDK) Unit Measured based on JIS B 8616 Mike position as right Mike (Center & low points) Model FDK36KXE6 Model FDK45KXE6 Models FDK22KXE6, 28KXE6 Noise level 41 dB (A) at HIGH Noise level 40 dB (A) at HIGH Noise level 46 dB (A) at HIGH 39 dB (A) at MEDIUM 39 dB (A) at MEDIUM...

  • Page 102: Common Information

    (a) Operating characteristic of outdoor unit (220-240V 50Hz/220V 60Hz) (i) 1 phase Models FDC112KXEN6 FDC140KXEN6 Item ooling power consumption 2.80 4.17 Heating power consumption 2.89...
  • Page 103 (b) Operating characteristic of indoor unit (22 -24 V 5 Hz/22 V 6 Hz) FDTC Series Models FDTC Series Item Power consumption (kW) . 3- . 3/ . 3 . 3- . 3/ . 3 . 4- . 4/ . 4 .
  • Page 104 (22 -24 V 5 Hz) FDQS Series Models FDQS Series Item Power consumption (kW) . 6- . 7 . 7- . 8 . 8- . 9 Runnning curcuit (A) .35- .38 .36- .39 .37- .4 (22 -24 V 5 Hz/22 V 6 Hz) (22 -24 V 5 Hz) FDK, FDFL, FDFU Series Models...
  • Page 105 (c) Calculation of total operation characteristics Since the operation characteristics of series Multi-KX depend on combination of indoor unit, calculate the total operation characteristics of the system by using the formulas below according to specifications of each indoor unit or outdoor unit. 1) Total power consumption Total power consumption (kW) = Power consumption of outdoor unit + ∑...

  • Page 106: Range Of Usage & Limitations

    4.2 Range of usage & limitations System FDC112KXEN6 FDC140KXEN6 FDC155KXEN6 112KXES6 140KXES6 155KXES6 Item Indoor intake air temperature (Upper, lower limits) lease see the next page. Outdoor air temperature (Upper, lower limits) Indoor units 1 to 6 units 1 to 8 units...
  • Page 107 Rage of usage & limitations pplicable range Indoor air W.B. temperature ˚C W.B. Outdoor air W.B. temperature ˚C W.B. “CAUTION” Cooling operation under low ambient air temperature conditions KXE6 models can be operated in cooling mode at low ambient air temperature condition within above temperature range. However in case of severely low temperature conditions if the following precaution is not observed, it may not be operated in spite of operable temperature range mentioned above and cooling capacity may not be established under certain conditions.

  • Page 109: Selection Chart

    4.4 Selection chart (1) Equipment selection flow Calculate the load for each room separately, then determine the indoor load. Select an indoor unit that matches the indoor load (tentative). Calculate the temperature compensation, then calculate the indoor unit capacity. Change the indoor unit. (See item (2) (a) for the calculation method.) Indoor unit Select the outdoor unit (tentative).
  • Page 110 (2) Capacity calculation method (a) Calculating the indoor unit capacity compensation Indoor unit capacity (cooling, heating) = Indoor unit total rated capacity × Capacity compensation coefficient according to temperature conditions See item (3) (a) concerning the capacity compensation coefficient according to temperature conditions. (b) Calculating the outdoor unit capacity compensation Outdoor Unit Capacity (Cooling, Heating) = Outdoor unit rated capacity (rated capacity when 100% connected) ×...
  • Page 111 • Capacity compensation coefficient according to height difference: 0.97 (calculated according to 15 m difference); (See page 111) 12.4 kW × 0.97 . = . 12.0 kW • Capacity compensation coefficient according to indoor unit connected total capacity: 1.0 , (56 × 2) / 140 < 100%) No compensation <System cooling capacity>: Item (2) (c) calculation Compare the indoor unit total cooling capacity and the outdoor unit maximum cooling capacity.
  • Page 112 <Outdoor unit maximum heating capacity> : Item (2) (b) calculation • Outdoor unit rated heating capacity: 16.0 kW • Capacity compensation coefficient according to temperature conditions: 1.04 (Calculated according to Outdoor 6˚C WB / Indoor 19˚C DB); (See page 109) Outdoor unit heating capacity: 16.0 kW ×...
  • Page 113 SHeating 1.20 1.15 Ambient air W.B. temperature 18˚CWB 1.10 Ambient air W.B. temperature 10˚CWB 1.05 Ambient air W.B. temperature 14˚CWB 1.00 Ambient air W.B. temperature 6˚CWB 0.95 Ambient air W.B. temperature 2˚CWB 0.90 Ambient air W.B. temperature -2˚CWB 0.85 Ambient air W.B. temperature -6˚CWB 0.80 0.75 Ambient air W.B.
  • Page 114 SHeating 1.25 Ambient air W.B. temperature 6˚CWB Ambient air W.B. temperature -2˚CWB 1.20 Ambient air W.B. temperature 2˚CWB Ambient air W.B. temperature -6˚CWB 1.15 1.10 Ambient air W.B. temperature 10˚CWB 1.05 1.00 0.95 Ambient air W.B. temperature -15˚CWB 0.90 0.85 Ambient air W.B.
  • Page 115 (d) When the outdoor unit is located at a lower height than the indoor unit in cooling operation and when the outdoor unit is located at a higher height than the indoor unit in heating operation, the following values should be subtracted from the values in the above table. Height difference between the indoor unit and 10 m 15 m...
  • Page 116 (4) Sensible heat capacity...

  • Page 174: Application Data

    4.5 APPLICATION DATA SAFETY PRECAUTIONS • Please read these “Safety Precautions” first then accurately execute the installation work. • Though the precautionary points indicated herein are divided under two headings, WARNING and CAUTION , those points which are related to the strong possibility of an installation done in error resulting in death or serious injury are listed in WARNING section.

  • Page 175: Installation Of Indoor Unit

    (1) Installation of indoor unit (a) Ceiling cassete-4 way type (FDT) Selection of installation location for the indoor unit q Select the suitable areas to install the unit under approval of the user. • Areas where the indoor unit can deliver hot and cold wind sufficiently. Suggest to the user to use a circulator the ceiling height is over 3m to avoid warm air being accumulated on the ceiling.
  • Page 176 Set blow-out pattern ● Select the most proper number of blow-out air supply port direction from 4 way, 3 way or 2 way according to the shape of the room and installation position. (1 way is not available.) ● If it is necessary to change the number of air supply port, prepare the covering materials. (sold as accessory) ●...
  • Page 177 (iii) Installation of indoor unit Work procedure q Prepare a ceiling hole with the size of from 860mm 860mm to 910mm 910mm referring to the template attached in the package. w Arrange the suspension bolt at the right position (725mm 778mm).
  • Page 178 (iv) Refrigerant pipe Caution ● Use the new refrigerant pipe. When re-using the existing pipe system for R22 or R407C, pay attention to the following items. • Change the flare nuts with the attached ones (JIS category 2), and reprocess the flare parts. •...
  • Page 179 (v) Drain pipe Caution ● Install the drain pipe according to the installation manual in order to drain properly. Imperfection in draining may cause flood indoors and wetting the household goods, etc. ● Do not put the drain pipe directly into the ditch where toxic gas such as sulfur, the other harmful and inflammable gas is generated.
  • Page 180 r Insulate the drain pipe. ● Be sure to insulate the drain socket and rigid PVC pipe installed indoors otherwise it may cause dew condensation and water leakage. ❈ After drainage test implementation, cover the drain socket part with pipe cover (small size), then use the pipe cover (big size) to cover the pipe cover (small size), clamps and part of the drain hose, and fix and wrap it with tapes to wrap and make joint part gapless.
  • Page 181 (vi) Wiring-out position and wiring connection ● Electrical installation work must be performed according to the installation manual by an electrical installation service provider qualified by a power provider of the country, and be executed according to the technical standards and other regulations applicable to electrical installation in the country.
  • Page 182 (vii) How to check the dirt of drain pan (Maintenance) The method of checking the dirt of drain pan ● It is possible to check the dirt for inlet of drain pan without detaching the panel. (Inspection is not possible when the high efficient filter and option spacer is installed.) q Open the air return grille and remove the panel corner cover on drain pan side.
  • Page 183 (b) Ceiling cassete-4 way compact type (FDTC) Selection of installation location 1) Select location where the space above ceiling is larger than those mentioned below and perfect draining can be assured. 2) With the customer’s consent, select a location with following suitable conditions. a) Where cool air or hot air can easily pass through.
  • Page 184 (iii) Suspension ¡ Please arrange four sets of a suspension bolt (M10 or M8), a nut matching the bolt, a flat washers and a spring washer at the installation site. When suspended from the ceiling 1) This unit is designed for installation on a 2 × 2 grid ceiling. If necessary, please detach the T bar temporarily before you install it.
  • Page 185 3) Care must be taken so as not to allow an adhesive to run into the drain hose. When it is hardened, it can cause a breakage of a flexible part, if the flexible part receives stress. 4) Use VP-20 general-purpose hard PVC pipes for drain piping. 5) Insert the drain hose supplied as an accessory (soft PVC end) to the stepped part of the unit’s drain socket and then fasten it with the clamp also supplied as Stepped...
  • Page 186 S Setup from a remote controller side. Drain pump operation from a recomte controller unit is possible. Operate a remote controller unit by following the steps described below. 1. To start a forced drain pump operation. q Press the TEST button for three seconds or longer. The display will change from “...
  • Page 187 mark A, B) [Figure 4] 7) A panel is hooked on two bolts ( [Figure 5] [Figure 4] 8) Please rotate a hook, put in the slot on the panel, and carry out fixing the panel temporarily. [Figure 5] 9) Tighten the two bolts used for fixing the panel temporarily and the other two. 10) Please open the lid of a control box.
  • Page 188 (c) Ceiling cassette-2 way type (FDTW) Selection of installation location 1) This unit is a ceiling surface direct return air and direct supply air type. Install the unit a place the allows air to reach every part of the room, in accordance with the shape and heigh of the room. •...
  • Page 189 8) Places exposed to oil splashes or steam (e.g. kitchens and machine plants.) Installation and use at such places will incur deteriorations in the performance or corrosion with the heat exchanger or damage in molded synthetic resin parts. 9) Places where corrosive gas (such as sulfurous acid gas) or inflammable gas (thinner, gasoline, etc.) is generated or remains.
  • Page 190 A. If there is a ceiling 1) Open the hole in the installation location to the ceiling open- ing dimensions. Outlet port 2) Install the suspension bolts (procured locally) at the designated Pattern paper locations. (Use care as the center of the spacing for the suspension bolts Ceiling surface Printed surface is not at the center of the panel.)
  • Page 191 2) When connecting the drain pipe to the unit, pay suffcient attention not to apply excess force to the piping on the unit side. Also, fix the piping at a point as close as possible to the unit. Size different part 3) For drain pipe, use hard PVC ganeral purpose pipe VP-20 which can be Drain socket Drain hose...
  • Page 192 Note (1) If the connector remains connected, drain water is discharged from the standard pipe connecting port, leading to water leakage. Clear flexible tubing (optional) Hard vinyl chloride piping. General piping VP-20 Heat insulation Rubber plug Remove CNR (Blue·2P) Natural drain port Control box Drainage test When using the standard drain port, execute a drainage test after completion of...
  • Page 193 (d) Ceiling cassette-1 way type (FDTS) Preparation of indoor unit It can be installed by either one of the following methods. Select the most adequate method for your particular case. A Standard installation B Higher ceiling 100mm 100mm Ceiling Ceiling or less or less Installation example and...
  • Page 194 6) Where a space as shown below can be secured. Unit : mm 100 or more or more Obstacle Floor 7) It should be avoided where a machine generating high frequency waves is installed. 8) Select a place to branch the piping so that same distance will be a obtained for each of one way piping. 9) If the humidity above the ceiling exceeds 80% or the condensation temperature above the ceiling exceeds 28ºC, affix polyurethane foam (with a thickness to 10 or greater) above the insulation in the ceiling panels.
  • Page 195 c) Fixing of Suspension bolt. Fix the bolts securely as shown below or by any other adequate means. Hole-in anchor bolt Insert Hole-in plug Concrete Suspension bolt, M10 d) Installation Drain pump box Unit Duct connection opening for blowing through lowered ceiling.
  • Page 196 Check of levelness Check the levelness as follows. Use a level gauge or adjust the levelness with the following method. ● Adjust the bottom of indoor unit and the water level as shown below. Piping side Supply water Water level 0~3 mm PVC hose Slightly lower the piping side...
  • Page 197 f) Air bleed should not be provided in any event. ● When it is necessary to raise the drain head, the limitation is up to 600mm below the bottom face of ceiling where the unit is installed. The distance is the dimension of the pipe which is installed perpendicularly from a point close to the output for drain pipe connection.
  • Page 198 Setup from a remote controller side. Drain pump operation from a remote controller unit is possible. Operate a remote controller unit by following the steps described below. 1. To start a forced drain pump operation 1 Press the TEST button for three seconds or longer. The display will change from “...
  • Page 199 (e) Ceiling cassette-1 way compact type (FDTQ) Avoid the following locations for installation and uses 1) Locations where oil splashes and moisture are abundant (e.g., kitchens, mechanical workshops). These locations may result in corrosion and lower performance of the heat exchanger and cause damage to plastic parts. 2) Locations with corrosive gases (such as sulfurous acid gas), flammable gases (such as thinners, gasoline) and areas where there are possibilities of gas accumulation.
  • Page 200 (iii) Suspending the unit Use four (4) M10 or W3/8 suspension bolts. Secure them firmly so that each can withstand a pull-out load of 490N. Adjust their length to approximately 40 mm from the ceiling. ● For TQ-PSA-15W-E panel ● For TQ-PSB-15W-E panel Unit : mm Unit : mm 740(Ceiling opening)
  • Page 201 d) Level the unit using a hose filled with water. If the unit is out of level, water leaks or malfunctioning of the floating switch may occur. Supply water Indoor unit PVC hose e) After ensuring the above, secure the unit. 2) When embedded into ceiling a) Install the unit following steps b) and c) of the above part 1).
  • Page 202 5) Be sure to provide heat insulation to hard PVC pipes of indoor placement. 6) Do not ever provide an air vent. 7) The height of the drain head may be elevated up to a point 600mm above the ceiling and, when an obstacle exists in the ceiling space, elevate the piping to avoid the obstacle using an elbow or corresponding gadget.
  • Page 203 Setup from a remote controller side. Drain pump operation from a remote controller unit is possible. Operate a remote controller unit by following the steps described below. 1. To start a forced drain pump operation 1 Press the TEST button for three seconds or longer. The display will change from “...
  • Page 204 (vii) Indoor unit repair procedure for duct connection 1) Drill hole for duct a) While referring to the following dimensions, notch the insulation. (The insulation is equipped with the marks in advance.) b) Cut joints for the hole, and drill hole. c) Connect the duct joint using screws attached to the panel.
  • Page 205 2) Duct work a) Calculate air flow volume and the outside static pressure to select the duct’s length and shape, and air supply outlet. Caution Take care that the outside static pressure does not exceed 30 Pa. The unit has condensation owing to the decrease in air capacity, possibly causing the ceiling and household goods to become wet.
  • Page 206 ● For QR-PNA-14W-ER panel ● For QR-PNB-14W-ER panel Ceiling plate Adjust the indoor unit Adjust the indoor unit position so that the bottom position so that the bottom surface of the indoor unit is surface of the indoor unit is T bar on the same level as the on the same level as the...
  • Page 207 Duct connected-High static pressure type (FDU) Selection of installation location q Select the suitable areas to install the unit under approval of the user. • Areas where the indoor unit can deliver hot and cold wind sufficiently. Suggest to the user to use a circulator if the ceiling height is over 3m to avoid warm air being accumulated on the ceiling.
  • Page 208 (ii) Preparation before installation q If suspension bolt becomes longer, do reinforcement of earthquake resistant. a For grid ceiling When suspension bolt length is over 500mm, or the gap between the ceiling and roof is over 700mm, apply earth- quake resistant brace to the bolt. b In case the unit is hanged directly from the slab and is installed on the ceiling plane which has enough strength.
  • Page 209 (iii) Installation of indoor unit Installation Hanging] Hang the unit up. Suspension bolt If the measurements between the unit and the ceiling hole do M10 nut not match upon installation, it Washer for M10 may be adjusted with the long holed installation tool.
  • Page 210 Bad example of duct work q If a duct is not provided at the suction side but it is substituted with the space over the ceiling, humidity in the space will increase by the influence of capacity of ventilation fan, strength of wind blowing against the out door air louver, weather (rainy day) and others.
  • Page 211 Work procedure q Remove the flare nut and blind flanges on the pipe of the indoor unit. * Make sure to loosen the flare nut with holding the nut on pipe side with a spanner and giving torque to the nut with another spanner in order to avoid unexpected stress to the copper pipe, and then remove them.
  • Page 212 w Prepare a joint for connecting VP-20 pipe, adhere and connect the joint to the drain hose (the end made of rigid PVC), and adhere and connect VP-20 pipe (prepare on site). * As for drain pipe, apply VP-20 made of rigid PVC which is on the market. a) Make sure that the adhesive will not get into the supplied drain hose.
  • Page 213 Procedures q Supply about 1000 cc of water to the unit through the air outlet by using a feed water pump. w Check the drain while cooling operation. nsert water supply hose Attached drain hose clamp for 20mm ~ 30mm to supply water.
  • Page 214 (vii) Wiring-out position and wiring connection ● Electrical installation work must be performed according to the installation manual by an electrical installation service provider qualified by a power provider of the country, and be executed according to the technical standards and other regulations applicable to electrical installation in the country.
  • Page 215 (g) Duct connected-Low/Middle static pressure type (FDUM) Selection of installation location 1) Avoid installation and use at those places listed below. a) Places exposed to oil splashes or steam (e.g. kitchens and machine plants). Installation and use at such places will incur deteriorations in the performance or corrosion with the heat exchanger or damage in molded synthetic resin parts.
  • Page 216 (ii) Suspension Be sure to observe the finished length of the suspension bolts given below. Unit : mm Mark Models FDUM22, 28, 36, 45, 56 FDUM71, 90 1406 FDUM112, 140 1) Fixing the suspension bolt (customer ordered parts M10) Securely fix the suspension bolt as illustrated below or in another way. Hole in anchor bolt Hole-in plug Insert...
  • Page 217 (iii) Duct work 1 Supply air duct ¡ 1-spot, 2-spot, 3-spot and 4-spot with 200 type duct are the standard specifications. Determine the number of spots based on following table. FDUM22 FDUM28, 36, 45, 56 FDUM71, 90 FDUM112, 140 1-spot -spot ~ 3-spot 3 ~ 4-spot...
  • Page 218 5 Make sure provide an inspection hole on the ceiling. It is indispensable to service electric equipment, motor, functional components and cleaning of heat exchanger. Air conditioner indoor unit Ceiling surface e Return air duct r Supply air port (marketed item) q Return air port (marketed item) w Supply air duct...
  • Page 219 7 Return air duct: Use square duct. 8 Return air port with canvas duct 1) Connection of intake and exhaust ducts. Looking from top of unit Exhaust port Side fresh air intake port Intake duct (square duct) Fig.1 Fig.2 Fresh air intake port midway of return duct 2) Duct connecting position.
  • Page 220 4) When constructing drain piping for several units, position the common pipe about 100 mm below the drain outlet of each unit as shown in the sketch below. Use VP-30 or thicher pipe for this purpose. Secure the elevation as high as possible (approx.
  • Page 221 Forced drain pump operation Setup from a unit side. q In case electrical wiring work finished Drain pump can be operated by remote controller (wired). For the operation method, refer to Operation for drain pump in the installation manual for wiring work. w In case electrical wiring work not finished Drain pump will run continuously when the dip switch “W7-1”...
  • Page 222 (h) Duct connected (Ultra thin)-Low static pressure type (FDQS) Selection of installation location Rear-intake type with duct Rear-intake 200 or more ceiling-return type Obstacle Under side-intake Model name label ceiling-return type It has stuck on the 1000 or more side of the unit. 100 or more 50 or more Obstacle...
  • Page 223 (iii) Moving and installing the unit Adjustment for horizontality Moving Either use a level vial, or adjust the level according to the Move the packed box as close to the installation area as possible. method below. If it must be unpacked, wrap the unit with a nylon sling or apply a support panel and lift it with a rope to avoid damage to the unit.
  • Page 224 (v) Refrigerant pipng q Use the pipes of the following material: seamless phosphorous deoxidized copper Type 1 (C1220T, JISH3300). w Thoroughly insulate the pipes on the gas and liquid sides. ● On the gas side, the maximum temperature may reach 120 °C, so use insulating materials which can withstand this temperature.
  • Page 225 Do not use acetone-based adhesives to connect to the drain socket. Pipe cover (large) [for insulation] (accessory) VP20 joint (field purchased) Stage difflernce part Drain socket Main unit Drain hose VP20 (field purchased) Ashesion (accessory) Drain hose Clamp (accessory) Pipe cover [for insulation] Drain socket (field purchased) Pipe cover (small)

  • Page 226: I) Ceiling Suspended Type (Fde)

    Ceiling suspended type (FDE) Selection of installation location 1) A place where good air circulation and delivery can be obtained. Cold air throw Unit : m Models FDE36, 45 FDE56, 71 FDE112, 140 Air throw Conditions (1) Installation height: 2.4 ~ 3.0 m above the floor (2) Fan speed: Hi (3) Location: Free space without obstacles (4) Distance of reach indicates the horizontal distance after the wind touched down on the floor.
  • Page 227 (ii) Installation preparation 1) Remove the air return grille. Slide the stoppers (4 places). Filter Take out the pins (4 or 6 places). 2) Remove the side panels. Take out the screws, then slide the side panels in the arrow direction to remove them. Side panel screw (1 each on the left and right sides) (M4) Side panel...
  • Page 228 (iii) Installation 1) Fasten the suspension lugs to the suspension bolts. <If there is ceiling material> <If there is no ceiling material> Air outlet Suspension bolts Suspension bolts Lug for suspension Flat washer Ceiling board Unit Fasten the bolts Flat washer Unit Flat washer (accessory parts)
  • Page 229 (iv) Refrigerant Piping 1) Piping Position Unit : mm 135 Gas pipe 235 (Liquid pipe) Drain piping (left) Liquid pipe 195 (Gas pipe) Slope inside unit: 10 mm Drain piping (right) 2) Piping Connection Position Piping can be connection from 3 different directions. Remove the cutout from hole where the piping will be connected using side cutters or similar tool.

  • Page 230: J) Wall Mounted Type (Fdk)

    WARNING Use the fitting supplied with the unit to connect the drain hose, fastening it at the lowest point so that there is no slack, and establishing a 10 mm drain slope. * Keep electrical wiring from running beneath the drain hose. rain hose rain hose Hose Clamp...
  • Page 231 (ii) Attaching of mounting plate 1) The indoor unit weighs approx, FDK22~56 model : 12kg. Therefore, check whether the portion to install the unit can bear the weight of unit. If it seems to be danger, reinforce the portion by a plate or a beam before installing the unit. It is not allowed to install the unit directly on the wall.
  • Page 232 b) Procedure for changing drain hose 1. Remove the drain hose. 2. Remove the drain cap. 3. Insert the drain cap. 4. Connect the drain hose. • Pull the drain hose off while • Remove by hand or pliers. • Insert the drain cap which was •...
  • Page 233 Model FDK71KXE6 Selection of installation location 1) Select the installation location that meets the following conditions and obtain the customer's consent. a) Location where cold and warm air spread all over the room b) Location where piping and wiring to the outdoors can easily be laid down. c) Location where the drain can be discharged completely.
  • Page 234 (iv) Forming of piping and drain hose 1) Rear take out case a) Forming of piping b) Tape winding • Wind the tape on the portion • Hold the root portion of pip- Piping which passes through the hole on ing, change the direction then the wall.
  • Page 235 (k) Floor standing (with casing) type (FDFL) Model: All models Selection of installation location 1) A place where good air circulation and delivery can be obtained. ● Cold air throw Unit : m Models All models Air throw [Conditions] (1) Fan speed: Hi (2) Location: Free space without obstacles (3) Distance of reach indicates the horizontal distance after the wind touched down the floor.
  • Page 236 (iii) Installation of unit 1) Floor standing installation a) Position of mounting bracket fixing bolts Drill holes by referring to figures below. hen fixed on the wall Bolt for wall mounting 4 places Hole for piping & wiring on wall hen fixed on the floor Hole for piping &...
  • Page 237 (iv) Drain piping The drain piping can be directed to the floor or rear sides as follows. Connect a drain piping to the drain outlet and fix it by use of tigghening band. (b) Indoor side drain piping must be thermally insulated. After finishing the drain piping, check the drainage by pouring some water in the drain pan.
  • Page 238 4) Wiring route. a) Wire from the wiring hole through the rear side of the control box to the terminal block. b) Any suplus wires should be tied up with a cable tie. Remote controller installation section Cable tip Control box Front Side Floor standing (without casing) hidden type (FDFU) Model: All models...
  • Page 239 (ii) Bolt positions 1) Bolt positions for metal settings used for floor fixation. 2) Bolt positions for wall fixation Unit : mm • Metal fitting used for floor fixation (accessories). 1150(1435) 786 (1071) Unit : mm Bolt positions for floor mounting hardware Floor mounting hardware Accessory Front...
  • Page 240 (iv) Drain piping The drain piping can be directed to the floor or rear sides as follows. Connect a drain piping to the drain outlet and fix it by use of tigghening band. (b) Indoor side drain piping must be thermally insulated. After finishing the drain piping, check the drainage by pouring some water in the drain pan.

  • Page 241: Installation Of Remote Controller (Option Parts)

    (2) Installation of remote controller (c) Recessed fitting (Option parts) 1) The Electrical box and remote controller (shield wire must be use in case of extension) are first (a) Selection of installation location embedded. Avoid the following locations 1) Direct sunlight. 2) Close to heating device.

  • Page 242: Installation Of Outdoor Unit

    (3) Installation of outdoor unit (a) Before beginning installation (Check that the models, power supply specifications, piping, wiring are correct.) Indoor and outdoor unit combinations Combination can be arranged with the conditions (number of units, capacity) shown below. Indoor unit Remote control Connectability RC-E3 (2 cores)
  • Page 243 Please note CAUTION a) If there is a possibility of a short-circuit, then install a flex flow adapter. Please leave sufficient clearance b) When installing multiple units, provide sufficient intake space so that a around the unit without fail. short-circuit does not occur. Otherwise, a risk of compressor c) In areas where there is snowfall, install the unit in a frame or under a and/or electric component failure...

  • Page 244: Refrigerant Piping

    Bolt fastening positions Air inlet Air outlet Anchor bolt position (4 locations) ● In installing the unit, fix the unit's legs with bolts specified below. Fasten with bolts (M10-12) Use a thicker block to anchor Use a long block to extend the width. deeper.
  • Page 245 q Individual flow division method ● For determination of appropriate branching joint or different diameter pipe joint sizes, please refer to "Branching Pipe Set," (which can be purchased separately). Attention ● Please use pipes of the pipe size specified for the outdoor unit for the section between the outdoor unit and the first branching joint.
  • Page 246 e Selection of on indoor unit side branching pipe set Method of selecting a branching pipe set • As an appropriate branching pipe size varies with the connected capacity (total capacity connected downstream), determine a size from the following table. a) KX series Notes(1) In connecting an indoor unit with the indoor unit side branching otal capacity downstream...
  • Page 247 Example of piping ■ Branch system Outdoor unit: FDC155KXES6 Indoor unit: Combination of 8 units [Branch pipe set : DIS-22-1 7 set] [Total capacity: 176] ¥ Selecting piping size Piping size (mm) Item Selection procedure Gas line Liquid line Same as the outdoor unit piping size ¿15.88 ¿9.52 Total capacity of the connected indoor units 132...
  • Page 248 ■ Header system Outdoor unit: FDC155KXES6 Indoor unit: Combination of 6 units [ Header pipe set : HEAD6-180-1 1 set] [Total capacity: 208] ¥ Selecting piping size Piping size (mm) Outdoor unit Item Selection procedure FDCA155 Gas line Liquid line Same as the outdoor unit piping size ¿15.88 ¿9.52...
  • Page 249 (ii) Piping work Piping connection position and the piping remove direction ● First remove the five screws ( mark) of the service panel and push it down into the direction of the arrow mark and then remove it by pulling it toward you. ●...
  • Page 250 Fix both liquid and gas service valves at the valve main bodies as illustrated on the right, and then fasten them, applying appropriate fastening torque. Do not hold the valve cap area ervice valve size Tightening torque Tightening angle Recommended length with a spanner.
  • Page 251 (iii) Air tightness test and air purge (Carry them out according to the following steps.) Air tightness test q Although an outdoor unit itself has been tested for air tightness at the factory, please check the connected pipes and indoor units for air tightness from the check joint of the service valve on the outdoor unit side. While conducting a test, keep the service valve shut all the time.
  • Page 252 Pay attention to the following points in addition to the above for the R410A and compatible machines. To prevent a different oil from entering, please assign dedicated tools, etc. to each refrigerant type. Under no circumstancescharge hose in particular be shared with other refrigerant types (R22, R407C, etc.). Use a counterflow prevention adapter to prevent vacuum pump oil from entering the refrigerant system.
  • Page 253 (iv) Additional refrigerant charge Additional refrigerant charge Charge additional refrigerant in the liquid state. Be sure to measure the quantity with a scale in adding refrigerant. If you cannot charge all refrigerant with the outdoor unit lying idle, charge it with the unit running in the test run mode. (For the test run method, please refer to Section 8) If operated for a long time with insufficient refrigerant the compressor will be damaged.
  • Page 254 (v) Heat insulation for prevention of dew condensation q Dress refrigerant pipes (both gas and liquid pipes) for heat insulation and prevention of dew condensation. Improper heat insulation/anti-dew dressing can result in a water leak or dripping causing damage to household effects, etc.
  • Page 255 (5) Electrical wiring work Electrical installation work must be performed by an electrical installation service provider qualified by a power provider of the country. Electrical installation work must be executed according to the technical standards and other regulations applicable to electrical installations in the country.
  • Page 256 Method of connecting power cables q Method of leading out cables ● As shown on the drawing in Section 4-2, cables can be laid through the front, right, left or bottom casing. ● In wiring on the installation site, cut off a half-blank covering a penetration of the casing with nippers. ●...
  • Page 257 How to connect signal cables The communication protocol can be choosen from following two types. One of them is the conventional Superlink (herein- after previous SL) and the other is the new Superlink II (hereinafter new SL) . These two communication protocols have the following advantages and restrictions, so please choose a desirable one meeting your installation conditions such as con- nected indoor units and centralized controller.

  • Page 258: Controller Settings

    Power cable and signal line connection Signal terminal block etwork connector Cable clamp Earth wire is giving slack. It holds cables in place and protect the terminal connection ● from external force. Give adequate slack to cables in fastening them. ●...
  • Page 259 ● Address setting methods The following address setting methods can be used. The procedure for automatic address setting is different from the conventional one. Please use the automatic address setting function after reading this manual carefully. Communication protocol new L previous L Automatic Manual Automatic Manual Address setting method...
  • Page 260 ● Summary of address setting methods (figures in [ ] should be used with previous SL) Units supporting new SL Units NOT supporting new SL ndoor unit address setting Outdoor unit address setting ndoor unit address setting Outdoor unit address setting ndoor No.
  • Page 261 (2) In the case of a multiple refrigerant systems installation (Applicable to new SL only. In the case of previous SL, set addresses with some other method.) (This option is available when the interconnection wiring among refrigerant systems is on the outdoor side and new SL is chosen as the communication protocol.) Address setting procedure (perform these steps for each outdoor unit)
  • Page 262 TEP1 TEP2 TEP3 TEP4 Ñ Ñ Indoor unit power source Ñ Ñ Outdoor unit power source Indoor unit indoor000/outdoor 49 Ñ Ñ Ñ (indoor/outdoor No. W) (factory setting) Outdoor unit Ñ Ñ Ñ 01,02(Ex) (outdoor No. W) Disconnect Connect Ñ Ñ...
  • Page 263 Address change (available only with new SL) “Address Change” is used, when you want to change an indoor unit address assigned with the “Automatic Address Setting” function from a remote control unit. Accordingly, the conditions that permit an address change from a remote control unit are as follows. ndoor unit address setting Outdoor unit address setting ndoor No.SW...
  • Page 264 2) When plural indoor units are connected to the remote controller. When plural indoor units are connected, you can change their addresses without altering their cable connection. Item Operation Display Address change [CHANG ADD ] Press the AIR CON Unit No. switch for 3 seconds or longer. mode [CHANG ADD ] ach time when you press the switch, the display indication will be switched.
  • Page 265 ● 7 segment display indication in automatic address setting Items that are to be set by the customer Code Contents of a display Communication protocol 0: New SL mode (The communication plotocol is displayed ; display only) 1: previos SL mode 0: Automatic address standby Automatic address start 1: Automatic address start...
  • Page 266 (ii) Control switching Outdoor unit control settings can be changed with the dipswitch and 7segment display P setting on the PCB. In changing settings in P on the 7 segment display panel, you can use SW8 (increasing a number shown on the 7 segment display panel: one’s place), SW9 (increasing a number shown on the 7 segment display panel: tens place) and SW7 (data write/enter) by pressing them for a prolonged time.

  • Page 267: Test Operation

    (7) Test operation Before beginning operation (1) Make sure that a measurement between the power supply terminal block and ground, when measured with a 500V megger tester, is greater than 1 MΩ. (2) Please check the resistance of the signaling line terminal block before power is turned on. If a resistance measurement is 100Ω...

  • Page 268: Cautions For Servicing (For R410A And Compatible Machines)

    (8) Cautions for servicing (for R410A and compatible machines) (1) To avoid mixing of different types of oil, use separate tools for each type of refrigerant. (2) To avoid moisture from being absorbed by the ice machine oil, the time for when the refrigerant circuit is open should be kept as short as possible.
  • Page 269 Remote controller function Stop air-conditioner and press “ ” : Initial settings (SET) + (MODE) buttons at the same time for over three seconds. “ ” : Automatic criterion Function When you use at 50Hz area setting When you use at 50Hz area When you use at 60Hz area Automatical operation is impossible Temperature setting button is not working...
  • Page 270 (ii) Indoor unit function Stop air-conditioner and press “ ” : Initial settings (SET) + (MODE) buttons at the same time for over three seconds. “ ” : Automatic criterion Note1: Fan setting of "HIGH SPEED" Indoor unit No. are indicated only when plural indoor units are connected.
  • Page 271 (b) How to set function Operation message Function description: Function No. setting description: Stop air-conditioner and press (SET) (MODE) buttons at the same time for over three seconds, and the Fixing button "FUNCTION SET " will be displayed. Finishing button Press ( SET) button.
  • Page 272 (c) The range of temperature setting. When shipped, the range of set temperature differs depending on the operation mode as below. Heating : 16~30°C (55~86°F) Except heating (cooling, fan, dry, automatic) : 18~30°C (62~86°F) 1) Upper limit and lower limit of set temperature can be changed with remote controller. Upper limit setting: valid during heating operation.
  • Page 273 g) When "LOWER LIMIT " is selected (valid during cooling, dry, fan, automatic) 1 Indication: SET UP LOWER 18°C " 2 Select the upper limit value with temperature setting button . Indication example: "LOWER 24°C " (blinking) 3 Press (SET) button to fix. Indication example: "LOWER 24°C" (Displayed for two seconds) After the fixed upper limit value displayed for two seconds, the indication will return to "LOWER LIMIT ".
  • Page 274 (e) How to set the airflow direction (Only FDT, FDTC, FDE) (i) FDT, FDTC series It is possible to change the movable range of the louver on the air outlet from the wired remote controller. Once the top and bottom position is set, the louver will swing within the range between the top and the bottom when swing operation is chosen. It is also possible to apply different setting to each louver.
  • Page 275 7) Press SET button. (Fixing of the upperlimit position) The upper limit position is fixed and the setting position is displayed for two seconds.Then proceed to lower limit position selection display. [EXAMPLE] (displayed for two seconds) (shows current setting) 8) Press button.
  • Page 276 When plural remote controllers are connected, louver setting operation cannot be set by slave remote controller. If it is necessary to fix the louver position manually, follow the procedure mentioned below. 1 Shut off the main power switch. 2 Unplug the connector of the louver motor which you want to fix the position. Make sure to insulate unplugged connec- tors electrically with a vinyl tape.
  • Page 277 (ii) FDE series It is possible to change the movable range of the louver on the air outlet from the wired remote controller. Once the top and bottom position is set, the louver will swing within the range between the top and the bottom when swing operation is chosen. It is also possible to apply different setting to each louver.
  • Page 278 7) Press SET button. (Fixing of the upperlimit position) The upper limit position is fixed and the setting position is displayed for two seconds.Then proceed to lower limit position selection display. [EXAMPLE] (displayed for two seconds) (shows current setting) 8) Press button.

  • Page 279: Notabilia As A Unit Designed For R410A

    (10) Notabilia as a unit designed for R410A (a) Do not use any refrigerant other than R410A. R410A will rise to pressure about 1.6 times higher than that of a conventional refrigerant. (b) A unit designed for R410A has adopted a different size indoor unit operation valve charge port and a different size check joint provided in the unit to prevent the charging of a wrong refrigerant by mistake.

  • Page 280: Outline Of Operation Control By Microcomputer

    4.6 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER (1) Wired remote controller (Optional parts) The figure below shows the remote controller with the cover opened. Note that all the items that may be displayed in the liquid crystal display area are shown in the figure for the sake of explanation. Characters displayed with dots in the liquid crystal display area are abbreviated.

  • Page 281: Operation Control Function By The Indoor Controller

    (2) Operation control function by the indoor controller Operations of functional items during cooling/heating [Applicable model: All models] Cooling Heating Operation Dehumidify Thermostat Thermostat Thermostat Thermostat Hot start (Defrost) Functional item Compressor � � � � � � �/� 4-way valve �...
  • Page 282 Remote controller display during the operation stop “Centralized control ON” is displayed always on the LCD under the “Center/Remote” and “Center” modes during the operation stop (Power ON). This is not displayed under the “Remote” mode. (b) If this display is not shown under the “Center/Remote” mode, check if the indoor unit power switch is turned on or not. Hot start (Prevention of cold draft during heating) [Applicable model: All models of the heat pump unit] At the startup of heating operation, at resetting the thermostat, during defrosting operation and at returning to heating, the indoor fan is controlled by the indoor heat exchanger temperature (detected with Th...
  • Page 283 Filter sign [Applicable model: All models] As the operation time (when ON/OFF switch is at ON) accumulates to 180 hours (1), “Filter cleaning” is displayed on the remote controller. (This is also displayed when the unit is in trouble and under the centralized control, regardless of ON/OFF) Note (1) Time setting for the filter sign can be made as shown below using the indoor function of wired remote controller “Filter sign setting”.
  • Page 284 (11) Drain motor (DM) control [Applicable type: FDT, FDTW, FDTS and FDR] Drain motor (DM) start operation at the same time when compressor ON at cooling and dehumidifying mode and keeps operating for 5 minutes after operation stop, the anomalous stop, thermostat OFF and switching from cooling or dehumidifying operation to fan or heating operation.
  • Page 285 (14) Anomalous fan motor (FDT and FDK only) Fan motor will be stopped with displaying “E16”, if it has detected the revolutions of 200 rpm or less continuously for 30 seconds at a rate of 4 times within 60 minutes, after starting the motor. (15) High ceiling control [Applicable type: FDT, FDTW, FDTS, FDE and FDR] When the indoor unit is installed at a high ceiling, the airflow volume mode control can be changed with the indoor function of wired remote controller “High ceiling setting”.
  • Page 286 (19) External control (Remote display)/Remote operation [Applicable model: All models] Always connect the wired remote controller. Otherwise, you cannot perform the remote operation. (a) Output for external control (remote display) (Optional remote RUN/STOP monitor kit can be utilized.) Following output connectors (CNT) are provided on the indoor control PCB. Connect the remote RUN/STOP monitor kit and pick up respective dry contact signal.
  • Page 287 (20) Dip switch function Model capacity selection with SW6 0 : OFF, 1 : ON Model P112 P140 P160 P224 P280 SW6-1 SW6-2 SW6-3 SW6-4 – –...

  • Page 288: Operation Control Function By The Remote Controller

    (3) Operation control function by the remote controller Switching sequence of the operation mode switches of remote controller Dehumidifying Cooling Heating Auto [CPU reset] When the “CHECK” and “GRILL ” buttons on the remote controller are pressed at the same time, this function is activated. This function is same as power supply reset.

  • Page 289: Operation Control Function By The Outdoor Controller

    (4) Operation control function by the outdoor controller (A) Normal control Operation of major functional components under each operation mode Cooling/Dehumidifying Heating Operation mode Compressor Compressor All stop by remote Compressor Compressor All stop by remote Functional components controller controller Magnetic Contactor for compressor (52C1) Crankcase heater (CH1)
  • Page 290 (c) Fan control during heating During heating, fan speed is controlled in accordance with the low pressure (sensed by PSL). Initial fan speeds are as follows. • Outdoor fan initial speed during heating Model Speed All models 6th speed (ii) During normal operation, the speed is changed in accordance with the low pressure value. Defrost (Defrost control) •...
  • Page 291 Protective control (a) Discharge pipe temperature control If the discharge pipe temperature exceeds 105°C, compressor speed is reduced to suppress the rising of discharge pipe temperature. If the discharge pipe temperature sensor detects 115°C or higher for 2 seconds continuously, it makes compressor stopped.
  • Page 292 • Current safe setting value Current safe value [A] Inverter primary (T-phase) current Inverter secondary current Power supply Cooling Cooling Heating Heating Zone A Zone B Zone C Zone D Zone A Zone B Zone C Zone D 1-phase 3-phase 13.5 13.5 11.5...
  • Page 293 (B) Optional controls Outdoor unit control settings can be changed with the dipswitch and 7 segment display Pxx setting on the PCB. In changing settings in Pxx on the 7 segment display panel, you can use SW8 (increasing a number shown on the 7 segment display panel: one’s place), SW9 (increasing a number shown on the 7 segment display panel: tens place) and SW7 (data write/enter) by pressing them for a prolonged time.
  • Page 294 External input and demand input (a) Operation permission and prohibition modes (Note) With 7-segment display [P07]-[0] Operation permission or operation prohibition mode is switched with the connector (CnS1) and the jumper wire (J13) on the outdoor PCB. J13: Switching of CnS1 input method J13 short-circuited: CNS1 is for the level input.
  • Page 295 Operation/ stop control by the demand input CnS1 of outdoor unit CnS1: Switching of demand control/ Input: CnS1 Switching with J13 normal operation Short-circuit Demand control Short-circuit (Level input)  Normal operation Switching of normal operation/ Open (Pulse input) Open demand control (Reversal) Short-circuit Normal operation...
  • Page 296 Silent mode control (Note) With 7-segment display [P07]-[3] for silent mode 1 or with 7-segment display [P07]-[8] for silent mode 2 (a) Start conditions When all the followings are satisfied When the strat command of silent mode input from indoor unit or from external input terminal of outdoor unit has become effective.

  • Page 297: External Output Function

    Outdoor fan snow protection control (a) This control is enabled/disabled by entering data into 7-segment display. (b) Outdoor fan control switching operation [Starting conditions] When following conditions are established for 10 minutes continuously. Snow protection control setting is valid ([P02]=1) and ambient air temperature < 3°C or external input of outdoor fan snow protection control ON.
  • Page 298 Energy saving mode control This control is effective, when [P04] of 7-segment display is set 000, 040, 060, 080 (except OFF) (a) Control contents Compressor upper limit speed is changed according to the setting ratio. (ii) Compressor upper limit speed is obtained by multiplying the rating speed (at cooling/heating) with the setting ratio as follows.
  • Page 299 Pump down operation control at removal of unit When an outdoor unit is discarded or removed, the pump down control is performed at the outdoor unit side in order to recover the refrigerant quickly to the outdoor unit. (a) Start conditions This is implemented with the liquid service valve closed.
  • Page 300 (C) Data output 7-segment and operation data retention (a) 7-segment display Operation information is displayed for checking various operation data during test run and for helping malfunction diagnosis at servising. Input data to microcomputer, contents of outdoor unit control, indoor unit registration information, or other, are mainly displayed on the 7-segment LED.
  • Page 301 (iii) Precedence of display [Exx] > [Related to check operation ([CHJ] > [CHU])] > [PdE] > [PdS]> [oPx] > [Cxx] ➀ If resetting from the display of ➀ , it is switched to [C00]. ➁ If SW8 or SW9 is pressed during the display of ➀ , it changes to [C00]. ➂...
  • Page 302 (b) List of 7-segment displays Code No. Contents of display Data display range Minimum unit Remarks Error display [Exx] Caution [oPx] display [PdS][PdE][CHx][CHE] Special display [CHL][CHU][CHJ][CHO] and etc. Code No. Contents of data display Data display range Minimum unit Remarks <Sensor value, actuator information>...
  • Page 303 Code Minimum Contents of data display Data display range Remarks unit Order of 100: 63H1-1 C30 Pressure switch – Order of 10: (Spare) 63H1-R (0: Close, 1: Open) Order of 1: (Spare) Order of 100: CNS1 C31 External input – Order of 10: (Spare) CNS2 (0: Close, 1: Open) Order of 1: (Spare) CNG1...
  • Page 304 Code Minimum Contents of data display Data display range Remarks unit C56 Target Fk 0 ~ 999 C57 Inverter 1 operation frequency command 0 ~ 130 (Spare) Inverter 2 operation frequency 0 ~ 130 command C59 FMo1 Fan Speed command 0 ~ 999 10min-1 C60 (Spare) FMo2 Fan Speed command...
  • Page 305 Code Minimum Contents of data display Data display range Remarks unit <Anomalous counter information> C70 Counter · Sensor wire disconnected 0 ~ 3 C71 Counter · High pressure protection 0 ~ 5 Counter · Anomalous low pressure ➂ (During 0 ~ 5 operation) C73 Counter ·...
  • Page 306 Code Minimum Contents of data display Data display range Remarks unit <User setting> P00 (Spare) – – – – – 0 : (Factory default) 0: First push preference (Factory default) P01 Operation preference switching – 1: Last push preference 0: Outdoor fan snow pretection control invalid 0 : (Factory default) P02 Outdoor fan snow protection control –...
  • Page 307 Code Minimum Contents of data display Data display range Remarks unit <New super link setting> Super link communication 0: Old super link – satus 1: New super link 1 : (Factory default) P31 Start address input To specify the start address at auto address setting 0 ~ 127 (*) Upper limit is maximum connectble number of indoor Number of connected indoor...
  • Page 308 (c) Saving of Operation Data Mainly for investigating causes of market claims, operation data are always saved in memory. If any trouble occurs, the data writing is stopped and only the operation data prior to the time when the trouble occurs are recorded. These data can be loaded to a PC via RS232C connector of PCB and utilized for identifying causes.
  • Page 309 Code Record data Number of Write contents Unit of write Contents Data write range bytes 00: No error on outdoor unit Error code 00 ~ 99 – 01-99: All errors 00 – 3F: Outdoor Error existing unit address 00 ~ FF –...
  • Page 310 Code Record data Unit of Number of Write contents Contents Data write range write bytes FM01 Fan speed command 0 ~ 65535 10min-1 (Spare) FMo2 Fan speed 0 ~ 65535 10min-1 command EEVH1 opening degree 0 ~ 65535 1 pulse EEVSC opening degree 0 ~ 65535 1 pulse...
  • Page 311 Code Record data Unit of Number of Write contents Contents Data write range write bytes Dip SW [SW6] – – Bit0 (Spare) SW6-1 0 : OFF, 1 : ON Bit1 (Spare) SW6-2 0 : OFF, 1 : ON Bit2 (Spare) SW6-3 0 : OFF, 1 : ON Bit3 (Spare) SW6-4...
  • Page 312 Code Record data Unit of Number of Write contents Contents Data write range write bytes <Control status> Control status 0 ~ 2 – None Oil return Oil return ON Control status 0 ~ 3 – None Defrost condition Temperature condition Time condition Control status 0 ~ 4...
  • Page 313 Code Record data Unit of Number Write contents Contents Data write range write of bytes <Protection control status> Protection control HP protection 1 Bit0 0: Normal, 1: Implementing Status 1 Compressor capacity control HP protection 2 ( *1) Bit1 0: Normal, 1: Implementing Indoor EEV minimal opening control at heating stop HP protection 3...
  • Page 314 Code Record data Unit of Number of Write contents Contents Data write range write bytes <Error counter information> Control status HP (63H1) anomaly counter 0 ~ 5 Control status LP anomaly counter while 0 ~ 5 running Control status LP anomaly counter while 0 ~ 5 stopping 75 Control status Td1 error counter...
  • Page 315 Code Record data Unit of Number Write contents Contents Data write range write of bytes <Other> Override number – <Indoor unit information> Bit0 Bit1 Bit2 Bit3 Bit4 (Spare) Bit5 (Spare) Bit6 (Spare) Bit7 (Spare) Registered indoor 1 – 8 operation 0 ~ 4 –...
  • Page 316 Code Record data Unit of Number Write contents Contents Data write range write of bytes <Piping washing operation information> 0 ~ 7 – 112 Registered indoor 1 – 8 – – Bit0 Indoor 1 unmatch check error 0 : OFF, 1 : ON unmatch check error Bit1 Indoor 2 unmatch check error...
  • Page 317 External input Level/Pulse Defrost start temperature Normal/Cold region Note (1) Jumper wires J13, J15 indicate short-circuit/open. (2) Dip switch SW’s indicate OFF/ON.  Model selection with SW4-1 – SW4-4 Model FDC112KXEN6 FDC112KXES6 FDC140KXEN6 FDC140KXES6 FDC155KXEN6 FDC155KXES6 Switch SW4-1 SW4-2 SW4-3 SW4-4 Note (1) 0: OFF, 1: ON ...

  • Page 318: System Troubleshooting Procedure

    4.7 System troubleshooting procedure (1) Basics of troubleshooting Basic troubleshooting is to check/analyze/save data by connecting the maintenance PC. Whenever arriving at the site, always connect the maintenance PC before starting work. Method of error data analysis (Basic procedure) • Identify whether particular error occurred during operation or operation is stopped. •...

  • Page 319: Explanation Of Troubleshooting

    (2) Explanation of troubleshooting Checking 15V on the control PCB (Step to check if the inverter PCB fails or not) Use this to diagnose E41, E42, E45 and E48. Power OFF (Power supply circuit breaker OFF) Be sure to wait for 3 minutes after turning the power circuit breaker off. Disconnect the fan motor wires.

  • Page 320: Contents Of Troubleshooting

    (3) Contents of troubleshooting List of inspection displays Indoor and outdoor units Remote 7-segment controller Name of inspection Classification Page display error code – Remote controller communication error Communication error – Duplicated indoor unit address Address setting error Address pairing setting –...
  • Page 321 Troubleshooting Green Content Error code Keeps flashing Stays Off Indoor None Remote controller: Operates but does not cool 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Check the indoor fan operation. Check the temperature differnce between inlet and outlet air.
  • Page 322 Green Content Error code Keeps flashing Stays Off Indoor Remote controller: None Operates but does not heat 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Check the indoor unit fan operation. Check the temperature differnce between inlet and outlet air.
  • Page 323 Green Content Error code Stays Off Stays Off Indoor Remote controller: None Earth leakage breaker activated 7-segment display: Stays Off Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Are the insulation resistance Replace compressor. * and and coil resistance of compressor OK? 2.
  • Page 324 Green Content Error code – – Indoor Remote controller: None Excessive noise/vibration (1/3) 7-segment display: – – Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure If excessive noise/vibration persists when sufficient time has elapsed after Does noise/ vibration occur during stopping the unit, it is or soon after stopping considered that the air-...
  • Page 325 Green Content Error code – – Indoor Remote controller: None Excessive noise/vibration (2/3) 7-segment display: – – Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure From 1/3 Rearrange the piping to Are the pipes avoid contact with the contacting with the casing.
  • Page 326 Green Content Error code – – Indoor Remote controller: None Excessive noise/vibration (3/3) 7-segment display: – – Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure From 2/3 If insufficient cooling/ heating problem happens [Adjustment during commissioning] due to anomalous operating Does noise/vibration occur when the conditions at cooling cooling/heating operation is in...
  • Page 327 Green Content Error code Keeps flashing Stays Off Indoor Remote controller: None Louver motor failure 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model Diagnosis Countermeasure � Check at the indoor unit side. Operate after waiting for more than 1 minute.
  • Page 328 Green Content Error code Power supply system error Stays Off Stays Off Indoor Remote controller: None (Power supply to indoor unit PCB) 7-segment display: Stays Off 2 times flash Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure AC220/240V detected between L1-N on Check the power supply the inddor terminal...
  • Page 329 Green Content Error code Power supply system error Stays Off Keeps lighting Indoor Remote controller: None (Power supply to remote controller) 7-segment display: Stays Off Keeps lighting Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Isn't there any Correct.
  • Page 330 Green Content Error code Keeps flashing Stays Off Indoor Remote controller: WAIT Master unit WAIT 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model Diagnosis Countermeasure Green LED on Indoor control PCB keeps lighting Are the signal wires Crrect the signal wires between indoor and outdoor units short...
  • Page 331 Green Content Error code Keeps flashing Stays Off Indoor Remote controller: WAIT WAIT 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model Diagnosis Countermeasure Is the voltage>15V between X-Y terminals of remote controller? Remove the wires of remote controller Is the Votage>15? 2.
  • Page 332 Green Content Error code Keeps flashing Stays Off Indoor Remote controller: WAIT WAIT 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model Diagnosis Countermeasure more than 2 remote Remove one of them controllers whose setting is Or Set one of them “slave” "master"...
  • Page 333 Green Content Error code Keeps flashing Stays Off Indoor Remote controller: [No display] [No display] 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model Diagnosis Countermeasure No display on the remote controller Is the volatage<15V between the terminals X-Y Replace remote controller of remote controller?
  • Page 334 Green Content Error code Remote controller Keeps flashing Stays Off Indoor Remote controller: communication error 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Malfunction by noise Is it possible to Check peripheral reset normally by the power supply reset? environment.
  • Page 335 Green Content Error code Keeps flashing Keeps flashing Indoor Remote controller: Duplicated indoor unit address 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Is the number of Review number of connected indoor units up connected units.
  • Page 336 Green Content Error code Keeps flashing 2 times flash Indoor Remote controller: E3/5 Outdoor unit signal line error 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure E3 is a communication error that occurs when communication is not established at all between indoor/outdoor units.
  • Page 337 Green Content Error code Keeps flashing *See below Indoor Remote controller: Communication error during operation 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure * In case of 2 times flash on indoor red LED Note (1) Check faulty connections (disconnection, looseness) on the outdoor unit terminal block.
  • Page 338 Green Content Error code Indoor heat exchanger Keeps flashing 1 time flash Indoor Remote controller: temperature thermistor anomaly 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Is the connection of indoor heat Correct.
  • Page 339 Green Content Error code Keeps flashing 1 time flash Indoor Remote controller: Intake air temperature thermistor anomaly 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Is the connection of intake air Correct.  Connect temperature sensor connector connector.
  • Page 340 Green Content Error code Keeps flashing 1 time flash Indoor Remote controller: Drain trouble 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model FDT, FDTC, FDTW, FDTQ, Diagnosis Countermeasure FDTS, FDR, FDU, FDUM, FDTQS and FDU---F series Check the error data in the remote controller.
  • Page 341 Green Content Error code Excessive number of indoor units (moe than 17 units) Keeps flashing Stays Off Indoor Remote controller: by controlling with one remoto controller 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Aren't more...

  • Page 342: Address Setting Error

    Green Content Error code Address setting error Keeps flashing 1 time flash Indoor Remote controller: by mixed setting method 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Isn't the auto setting and the Review address setting.
  • Page 343 Green Content Error code Indoor fan motor anomaly Keeps flashing 1 time flash Indoor Remote controller: (In case of FDT) 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model FDT type Diagnosis Countermeasure Does any foreign material intervene Remove foreign material.
  • Page 344 Green Content Error code Indoor fan motor anomaly Keeps flashing 1 time flash Indoor Remote controller: (In case of FDK) 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model FDK type Diagnosis Countermeasure Does any foreign material intervene Remove foreign material.
  • Page 345 Green Content Error code Indoor unit operation check, Keeps flashing 1 time flash Indoor Remote controller: drain motor check setting error 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure E19 occurs when the power ON Is SW7-1 Defective indoor control...

  • Page 346: Remote Controller

    Green Content Error code Remote controller Keeps flashing Stays Off Indoor Remote controller: temperature thermistor anomaly 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Is the remote Correct. controller temperature thermistor connected properly? 2.
  • Page 347 Green Content Error code Unmatch connection of Keeps flashing Stays Off Indoor Remote controller: indoor and outdoor unit 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model KXE6 multi outdoor unit Diagnosis Countermeasure the signal wire connection between Correct signal wiring indoorand outdoor units...
  • Page 348 Green Content Error code Keeps flashing Stays Off Indoor Remote controller: Duplicated outdoor unit address No. 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model KXE6 multi outdoor unit Diagnosis Countermeasure Check and save the data of operating condition.
  • Page 349 Green Content Error code Open L3 Phase on Keeps flashing Stays Off Indoor Remote controller: power supply at primary side 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model KXE6 multi outdoor unit Diagnosis Countermeasure Check and save the data of operating condition.
  • Page 350 Green Content Error code Discharge pipe temperature Keeps flashing Stays Off Indoor Remote controller: error (Tho-D1) 7-segment display: E36-1 Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model KXE6 multi outdoor unit Diagnosis Countermeasure Check and save the data of operating condition Save data for 30 minutes before stopping in Mente PC Check the ROM version...
  • Page 351 Green Content Error code Keeps flashing Stays Off Indoor Remote controller: Liqiud flooding anomaly 7-segment display: E36-3 Keeps flashing 3 times flash Outdoor 5. Troubleshooting 1. Applicable model KXE6 multi outdoor units Diagnosis Countermeasure Check and save the data of operating condition Save data for 30 minutes before stopping in Mente PC Check ROM version...
  • Page 352 Green Content Error code Outdoor heat exchanger and subcooing Keeps flashing Stays Off Indoor Remote controller: coil temperature thermistor anomaly 7-segment display: E37-1, 2, 5, 6*1 Keeps flashing Outdoor *1 Tho-R1: one time flash (E37-1), Tho-R2: two times flash (E37-2), Tho-SC: 5 times flash (E37-5), Tho-H: 6times flash (E37-6) 5.
  • Page 353 Green Content Error code Ambient air temperature Keeps flashing Stays Off Indoor Remote controller: thermistor anomaly (Tho-A) 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model KXE6 multi outdoor unit Diagnosis Countermeasure Check and save the data of operating condition.
  • Page 354 Green Content Error code Discharge pipe temperature Keeps flashing Stays Off Indoor Remote controller: thermistor anomaly (Tho-D1) 7-segment display: E39-1 Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model KXE6 multi outdoor unit Diagnosis Countermeasure Check and save the data of operating condition.
  • Page 355 Green Content Error code Keeps flashing Stays Off Indoor Remote controller: High pressure error (63H1-1 activated) 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model KXE6 multi outdoor unit Diagnosis Countermeasure Check and save the data of operating condition Save data for 30 minutes before stopping in Mente PC Check the sensed value of...
  • Page 356 Green Content Error code Keeps flashing Stays Off Indoor Remote controller: Current cut (1) 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model FDC112-155KXEN6 Diagnosis Countermeasure FDC112-155KXES6 Is the Check power supply Power supply voltage OK? 2.
  • Page 357 Green Content Error code Keeps flashing Stays Off Indoor Remote controller: Current cut (2) 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model FDC112-155KXEN6 Diagnosis Countermeasure FDC112-155KXES6 Continue from previous page Is the checked result of Replace inverter PCB power transistor module OK?
  • Page 358 Green Content Error code Excessive number of indoor units connected, Keeps flashing Stays Off Indoor Remote controller: excessive total capacity of connection 7-segment display: E43-1, 2 *1 Keeps flashing Stays Off*1 Outdoor *1 E43-1/1 time flash: Excessive number of indoor units connected, E43-2/2 times flash:Excessive capacity of connection 5.
  • Page 359 Green Content Error code Communication error between Keeps flashing Stays Off Indoor Remote controller: inverter PCB and outdoor control PCB 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model FDC112-155KXEN6 Diagnosis Countermeasure FDC112-155KXES6 Check and save the data of Save data for 30 minutes before stoopping in Mente PC operating conditions Are the...
  • Page 360 Green Content Error code Mixed address setting methods Keeps flashing Stays Off Indoor Remote controller: coexistent in same network. 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model KXE6 multi outdoor unit Diagnosis Countermeasure Check and save the data of operating condition Save data for 30 minutes before stopping in Mente PC Check which addess setting...
  • Page 361 Green Content Error code Keeps flashing Stays Off Indoor Remote controller: Outdoor DC fan motor anomaly 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model FDC112-155KXEN6 Diagnosis Countermeasure FDC112-155KXES6 Check and save the data of operating conditions. Save data for 30 minutes before stoopping in Mente PC Does any foreign material...
  • Page 362 Green Content Error code Keeps flashing Stays Off Indoor Remote controller: Low pressure error 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model KXE6 multi outdoor unit Diagnosis Countermeasure Check and save the data of operating condition. Save data for 30 minutes before stopping in Mente PC Check error status.
  • Page 363 Green Content Error code Suction pipe temperature thermistor anomaly (Tho-S), Keeps flashing Stays Off Indoor Remote controller: E53/E55*1 7-segment display: E53/E55-1 Under-dome temperature thermistor anomaly (Tho-C1) Keeps flashing 1 time flash Outdoor *1 E53: Error for (Tho-s), E55: Error for Tho-C1 5.

  • Page 364: High Pressure Sensor

    Green Content Error code High pressure sensor/ Keeps flashing Stays Off Indoor Remote controller: Low pressure sensor anomaly 7-segment display: E54-1, 2 *1 Keeps flashing Stays Off*1 Outdoor *1 E54-1/1 time flash: Low pressure sensor anomaly, E54-2/2 times flash: High pressure sensor anomaly 5.
  • Page 365 Green Content Error code Power transitor temperature Keeps flashing Stays Off Indoor Remote controller: thermistor anomaly (Tho-P1, Tho-P2) 7-segment display: E56-1, 2 *1 Keeps flashing Stays Off*1 Outdoor *1 E56-1/1 time flash:Tho-P1 anomaly, E56-2/2 times flash: Tho-P2 anomaly 5. Troubleshooting 1.
  • Page 366 Green Content Error code Anomalous compressor Keeps flashing Stays Off Indoor Remote controller: by loss of synchronism 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model FDC112-155KXEN6 Diagnosis Countermeasure FDC112-155KXES6 Check and save the data of operating condition Save data for 30 minutes before stopping in Mente PC Check the data for 30 minutes before stopping...
  • Page 367 Green Content Error code Keeps flashing Stays Off Indoor Remote controller: Compressor startup failure 7-segment display: Keeps flashing 5 times flash Outdoor 5. Troubleshooting 1. Applicable model FDC112-155KXEN6 Diagnosis Countermeasure FDC112-155KXES6 Check and save the data of Save data for 30 minutes before stoopping in Mente PC operating conditions In case that the compressor Start up by disconnecting...

  • Page 368: Emergency Stop

    Green Content Error code Keeps flashing Stays Off Indoor Remote controller: Emergency stop 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model KXE6 multi indoor unit Diagnosis Countermeasure Check and save the data of operating condition. Save data for 30 minutes before stopping in Mente PC Check if it occurred during operation or at the power...

  • Page 369: Replacement Of Pcb At Outdoor Unit Side

    (4) Replacement of PCB at outdoor unit side Control PCB Precautions for Safety • Since the following precaution is the important contents for safety, be sure to observe them. WARNING and CAUTION are described as follows: Indicates an imminently hazardous situation which will result in death or serious injury if proper WARNING safety procedures and instructions are not adhered to.
  • Page 370 Inverter PCB FDC112, 140, 155KXEN6 model Exchange the PCB after elapsing 3 minutes from power OFF. (Be sure to measure voltage (DC) on both capacitor terminals located in controller back, and check that the voltage is discharged sufficiently.(Refer to Fig.2)) Take off the connection of inverter PCB terminal block connector and remove the screw of power transistor then remove the PCB.
  • Page 371 FDC112, 140, 155KXES6 model Exchange the PCB after elapsing 3 minutes from power OFF. (Be sure to measure voltage (DC) on both capacitor terminals located in controller back, and check that the voltage is discharged sufficiently.(Refer to Fig.2)) Take off the connection of inverter PCB terminal block connector and remove the screw of power transistor then remove the PCB.
  • Page 372 • SW4 (Power supply voltage) Check operation start Model All models SW3-5 Switch Normal SW4-1 Forced cooling/heating SW3-7 Normal • SW4 (Power supply voltage) FDC112KXEN6 FDC112KXES6 Model • SW4 (Change demand ratio) FDC140KXEN6 FDC140KXES6 Switch FDC155KXEN6 FDC155KXES6 Switch Function SW4-1 OFF Compressor capacity 60％...
  • Page 373 5 WIRELESS KIT (OPTIONAL PARTS) WARNING ¡ Fasten the wiring to the terminal securely and hold the cable securely so as not to apply unexpected stress on the terminal. Loose connection or hold will cause abnormal heat generation or fire. ¡...
  • Page 374 5.1 FDT SERIES The FDT series is an exclusive series with all wired models. However, these models can also be used wireless units by using the optional wireless kit. Wireless kit model Model RCN-T-36-W-E (2) Accessories Please make sure that you have all of the following accessories. Receiver Remote controller holder Wireless...
  • Page 375 Remove the cover by unscrewing two screws from the back of receiver. Change the setting by the switch on PCB. Screws Default settings Switch Receiver Backside Cover Backside When SW1 is turned to OFF position, change the corresponding remote controller setting as follows: How to change the remote controller setting Pressing ACL and AIR FLOW button at the same time or inserting the batteries with pressing AIR FLOW button will customize the signal.
  • Page 376 Installation of the receiver Loosen the bolts which fix the panel and make a gap between the panel and the indoor unit Put the wiring of the receiver through the opening. Put the wiring on the notch on the control box so as not to be pinched by the control box and lid as shown below. Connect the wiring to the terminal block provided in the control box.
  • Page 377 (4) Remote controller Installation of the controller holder Caution DO NOT install it on the following places 1. Places exposed to direct sunlight 2. Places near heat devices 3. High humidity places 4. Hot surface or cold surface enough to generate condensation 5.
  • Page 378 Control plural indoor units with one remote controller Up to 16 indoor units can be connected. Connect the XY terminal with 2-core wire. As for the size, refer to the following note. For Packaged air conditioner series, set the indoor unit address with SW2 on the indoor unit PCB from [0] to [F] so as not to duplicate.
  • Page 379 Correlation between illuminance at the receiver and The receivable area of the signal when the illuminance reachable area of the signal in a plain view. The draw- at the receiver is 300lux ing in the right shows the correlation between the reachable area of the signal and illuminance at the receiver when the remote controller is operated at 1.1m high under the condition of ceiling height of...
  • Page 380 Backup button backup button A Backup button is provided on the receiver. Even when the operation from the wireless remote controller is not possible (due to flat batteries, controller lost, or controller failure), still it possible to operate as temporary means. Press the button directly when operating it. The air conditioner starts the operation with the condition of Auto mode, 23˚C of set point, High fan speed and horizontal louver position.

  • Page 381: Fdtc Series

    5.2 FDTC SERIES The FDTC series is an exclusive series with all wired models. However, these models can also be used wireless units by using the optional wireless kit. Wireless kit model Model RCN-TC-24W-ER (2) Accessories Please make sure that you have all of the following accessories. Receiver Remote controller holder Wireless...
  • Page 382 Setting on site PCB on the receiver has the following switches to set the functions. Default setting is shown with mark. Customized signal setting to avoid Normal mixed communication Remote Master Receiver master/slave setting Slave Valid Buzzer valid/Invalid Invalid Valid Auto restart Invalid Remove the cover by unscrewing two screws from the back of receiver.
  • Page 383 Installation of the receiver Attach the receiver to the panel according to the panel installation manual. Remove two screws and detach the lid from the control box. Put the wiring in the control box with other wiring as shown below. Connect the wiring to the terminal block provided in the control box.
  • Page 384 Remote controller Installation of the controller holder Caution DO NOT install it on the following places 1. Places exposed to direct sunlight 2. Places near heat devices 3. High humidity places 4. Hot surface or cold surface enough to generate condensation 5.
  • Page 385 Control plural indoor units with one remote controller Up to 16 indoor units can be connected. Connect the XY terminal with 2-core wire. As for the size, refer to the following note. For signal packaged air conditioner series, set the indoor unit address with SW2 on the indoor unit PCB from [0] to [F] so as not to duplicate.
  • Page 386 The receivable area of the Correlation between illuminance at the receiver and signal when the illuminance at the receiver is 300lux reachable area of the signal in a plain view. The draw- ing in the right shows the correlation between the reachable area of the signal and illuminance at the receiver when the remote controller is operated at 1m high under the condition of ceiling height of 2.4m.
  • Page 387 Cooling test run operation ¡ After safety confirmation, turn on the power. ¡ Transmit a cooling operation command with wireless remote controller, while the backup button on the receiver is pressed. ¡ If the backup button on the receiver is pressed during a test run, it will end the test run. ¡...
  • Page 388 5.3 EXCEPT FOR FDT & FDTC SERIES This product is dedicated for heat pump unit. Never install on the unit dedicated for cooling. Wireless kit model Model RCN-KIT3-E (2) Accessories (Confirm the following accessories). Remote controller Light detection holder adaptor Screw for holder Wiring (3m) Screw for light...
  • Page 389 How to install the receiver The following two methods can be used to install the receiver onto a ceiling or a wall. Select a method according to the installation position. <Installation position> Direct installation onto the ceiling with wood screws. Installation with accessory's bracket Drilling of the ceiling (ceiling opening) Drill the receiver installation holes with the following dimensions at the ceiling position where wires can be connected.
  • Page 390 1 Put through the wiring from the back side to the hole of the lower case. 2 Fit the lower case into the ceiling opening. Make sure that the clearance between the convex part of the back of the lower case and the ceiling opening must be as equal as possible on both sides.
  • Page 391 Remote controller Installation of the controller holder Caution DO NOT install it on the following places Holder for 1. Places exposed to direct sunlight remote controller 2. Places near heat devices 3. High humidity places 4. Hot surface or cold surface enough to generate condensation 5.
  • Page 392 Setting of wireless remote controller and receiver (A) Methods of avoiding the malfunction due to the mixed communication Do both procedures 1 and 2. This setting is to avoid the mixed communication with other household electric appliances or the mixed communication when two receivers are located closely.
  • Page 393 (B) Control plural indoor units with one remote controller Up to 16 indoor units can be connected. Connect the XY terminal with 2-core wire. As for Restrictions on the thickness and length of wire the size, refer to the following note. (Maximun total extension 600m.) Standard Within 100m x 0.3 mm...
  • Page 394 INVERTER DRIVEN MULTI-INDOOR-UNIT CLIMATE CONTROL SYSTEM Air-Conditioning & Refrigeration Systems Headquarters 16-5, 2-chome, Kounan, Minato-ku, Tokyo, 108-8215, Japan Fax : (03) 6716-5926 No.106(0.55A) R...

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