Page 1 Manual No. '06 PAC-T-102 • TECHNICAL MANUAL Collection data PACKAGED AIR-CONDITIONER (Spilit system, Air to air heat pump type) CEILING RECESSED TYPE FDUVA802HES1R FDTVA402HEN1R FDTVA402HENP1R FDTVA602HENT1R 1002HES1R 502HEN1R 502HENP1R 802HEST1R 602HEN1R 602HENP1R 802HESP1R 1002HESP1R CEILING SUSPENDED TYPE HIGH STATIC PRESSURE DUCT TYPE...
Page 2 TABLE OF CONTENTS 1. PACKAGED AIR-CONDITIONER ..................2 2. MULTI-TYPE (V MULTI) PACKAGED AIR-CONDITIONER ..........197 3. WIRELESS KIT (OPTION FOR FDT MODEL ONLY) ............294...
Page 3: Table Of Contents
1. PACKAGED AIR-CONDITIONER CONTENTS 1.1 GENERAL INFORMATION................5 1.1.1 Specific features ..................5 1.1.2 How to read the model name ............... 5 1.2 SELECTION DATA ................... 6 1.2.1 Specifications ....................6 (1) Ceiling recessed type (FDT) ................. 6 (2) Ceiling suspended type (FDEN) ..............18 (3) Wall mounted type (FDKN) .................
Page 4 1.4 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER ....92 (1) Remote controller ..................92 (2) Operation control function by the indoor controller ........94 (3) Operation control function by the wired remote controller ......101 (4) Operation control function by the outdoor controller ......... 102 1.5 APPLICATION DATA ..................
Page 5 1.6.3 Diagnosing of microcomputer circuit ............157 (1) Selfdiagnosis function ................157 (2) Procedures of trouble diagnosis ............... 160 (3) Error diagnosis procedures at the indoor unit side ........160 (4) Error diagnosis procedures at the outdoor unit side ......... 176 (5) Check method in the case of the failure display in the remote controller ..
Page 6: General Information
GENERAL INFORMATION 1.1.1 Specific features (1) A new refrigerant, R410A, which causes no damage to the earth’s ozone layer, is used. R410A is a pseudoazeotropic refrigerant, so there is little formation of separate vapor and liquid layers, and it is possible to add refrigerant on-site. (2) Less refrigerant charge amount due to use of double phase refrigerant flow system.
Page 7: Selection Data
SELECTION DATA 1.2.1 Specifications (1) Ceiling recessed type (FDT) (a) Single type Model FDTVA402HEN1R FDTVA402HEN1R Model Item FDTA401R FDCVA402HENR Nominal cooling capacity 10.0 [6.1~11.2] Nominal heating capacity 11.2 [5.6~12.5] Power source 1 Phase, 220/230/240V 50Hz 2.88 Cooling power consumption 12.6...
Page 8 Model FDTAV502HEN1R FDTVA502HEN1R Model Item FDTA501R FDCVA502HENR Nominal cooling capacity 12.5 [6.5~14.0] Nominal heating capacity 14.0 [6.2~16.0] Power source 1 Phase, 220/230/240V 50Hz Cooling power consumption 4.05 Running current (Cooling) 17.7 Power factor (Cooling) Heating power consumption 3.97 Running current (Heating) 17.4 Power factor (Heating) Inrush current (L.R.A)
Page 9 Model FDTVA602HEN1R FDTVA601HEN1R Model Item FDTA601R FDCVA602HENR Nominal cooling capacity 14.0 [6.7~14.8] Nominal heating capacity 16.0 [6.3~16.8] Power source 1 Phase, 220/230/240V 50Hz Cooling power consumption 4.65 Running current (Cooling) 20.4 Power factor (Cooling) Heating power consumption 4.54 Running current (Heating) 20.0 Power factor (Heating) Inrush current (L.R.A)
Page 10 (b) Twin type Model FDTVA402HENP1R (Indoor unit: 2 units, Outdoor unit: 1 unit) FDTVA402HENP1R Model Item FDTA201R FDCVA402HENR Nominal cooling capacity 10.0 [6.1~11.2] Nominal heating capacity 11.2 [5.6~12.5] Power source 1 Phase, 220/230/240V 50Hz 2.94 Cooling power consumption 2.90/2.96 12.9 Running current (Cooling) 5.1/5.5 Power factor (Cooling)
Page 11 Model FDTVA502HENP1R (Indoor unit: 2 units, Outdoor unit: 1 unit) FDTVA502HENP1R Model Item FDTA251R FDCVA502HENR 12.5 [6.5~14.0] Nominal cooling capacity 14.0 [6.2~16.0] Nominal heating capacity Power source 1 Phase, 220/230/240V 50Hz 4.29 Cooling power consumption 2.90/2.96 18.9 Running current (Cooling) 5.15.5 Power factor (Cooling) 4.13...
Page 12 Model FDTVA602HENP1R (Indoor unit: 2 units, Outdoor unit: 1 unit) FDTVA602HENP1R Model Item FDTA301R FDCVA602HENR Nominal cooling capacity 14.0 [7.0~14.5] Nominal heating capacity 16.0 [6.3~16.5] Power source 1 Phase, 220/230/240V 50Hz Cooling power consumption 4.69 20.5 Running current (Cooling) Power factor (Cooling) 4.58 Heating power consumption Running current (Heating)
Page 13 Model FDTVA802HESP1R (Indoor unit: 2 units, Outdoor unit: 1 unit) FDTVA802HESP1R Model Item FDTA401R FDCVA802HESR Nominal cooling capacity 20.0 [7.0~22.4] Nominal heating capacity 22.4 [7.6~25.0] Power source 3 Phase, 380/400/415V 50Hz Cooling power consumption 6.60 Running current (Cooling) Power factor (Cooling) 6.46 Heating power consumption Running current (Heating)
Page 14 Model FDTVA1002HESP1R (Indoor unit: 2 units, Outdoor unit: 1 unit) FDTVA1002HESP1R Model Item FDTA501R FDCA1002HESR Nominal cooling capacity 25.0 [10.6~28.0] Nominal heating capacity 28.0 [9.5~31.5] Power source 3 Phase, 380/400/415V 50Hz Cooling power consumption 8.12 Running current (Cooling) 12.2 Power factor (Cooling) Heating power consumption 7.75 Running current (Heating)
Page 15 (c) Triple type Model FDTVA602HEN T1R (Indoor unit: 3 units, Outdoor unit: 1 unit) FDTVA602HENT1R Model Item FDTA201R FDCVA602HENR Nominal cooling capacity 14.0 [7.0~14.5] Nominal heating capacity 16.0 [6.3~16.5] Power source 1 Phase, 220/230/240V 50Hz 4.74 Cooling power consumption 2.90/2.96 20.8 Running current (Cooling) 5.1/5.5...
Page 16 Model FDTVA802HEST1R (Indoor unit: 3 units, Outdoor unit: 1 unit) FDTVA802HEST1R Model Item FDTA301R FDCVA802HESR Nominal cooling capacity 20.0 [7.0~22.4] Nominal heating capacity 22.4 [7.6~25.0] Power source 3 Phase, 380/400/415V 50Hz Cooling power consumption 6.72 Running current (Cooling) 10.0 Power factor (Cooling) Heating power consumption 6.57 Running current (Heating)
Page 17 (d) Double twin type Model FDTVA802HESD1R (Indoor unit: 4 units, Outdoor unit: 1 unit) FDTVA802HESD1R Model Item FDTA201R FDCVA802HESR Nominal cooling capacity 20.0 [7.0~22.4] Nominal heating capacity 22.4 [7.6~25.0] Power source 3 Phase, 380/400/415V 50Hz 6.75 Cooling power consumption 2.90/2.96 10.1 Running current (Cooling) 5.1/5.5...
Page 18 Model FDTVA1002HESD1R (Indoor unit: 4 units, Outdoor unit: 1 unit) FDTVA1002HESD1R Model Item FDTA251R FDCVA1002HESR 25.0 [10.6~28.0] Nominal cooling capacity 28.0 [9.5~31.5] Nominal heating capacity Power source 3 Phase, 380/400/415V 50Hz 8.86 Cooling power consumption 2.90/2.96 13.3 Running current (Cooling) 5.15.5 Power factor (Cooling) 8.43...
Page 19: Ceiling Suspended Type (Fden)
(2) Ceiling suspended type (FDEN) (a) Single type Model FDENVA402HEN1R FDENVA402HEN1R Model Item FDENA401R FDCVA402HENR Nominal cooling capacity 10.0 [6.1~11.2] Nominal heating capacity 11.2 [5.9~12.5] Power source 1 Phase, 220/230/240V 50Hz 2.85 Cooling power consumption 12.5 Running current (Cooling) Power factor (Cooling) 2.97 Heating power consumption 13.0...
Page 20 Model FDENVA502HEN1R FDENVA502HEN1R Model Item FDENA501R FDCVA502HENR Nominal cooling capacity 12.5 [6.5~14.0] Nominal heating capacity 14.0 [6.2~16.0] Power source 1 Phase 220/230/240V 50Hz Cooling power consumption 4.35 Running current (Cooling) 19.2 Power factor (Cooling) Heating power consumption 3.95 Running current (Heating) 17.3 Power factor (Heating) Inrush current (L.R.A)
Page 21 Model FDENVA602HEN1R FDENVA602HEN1R Model Item FDENA601R FDCVA602HENR Nominal cooling capacity 14.0 [6.7~14.5] Nominal heating capacity 16.0 [6.3~16.5] Power source 1 Phase, 220/230/240V 50Hz Cooling power consumption 4.95 Running current (Cooling) 21.7 Power factor (Cooling) Heating power consumption 4.69 Running current (Heating) 20.5 Power factor (Heating) Inrush current (L.R.A)
Page 22 (b) Twin type Model FDENVA402HENP1R (Indoor unit: 2 units, Outdoor unit: 1 unit) FDENVA402HENP1R Model Item FDENA201R FDCVA402HENR 10.0 [6.1~11.2] Nominal cooling capacity 11.2 [5.9~12.5] Nominal heating capacity Power source 1 Phase, 220/230/240V 50Hz Cooling power consumption 2.78 Running current (Cooling) 12.2 Power factor (Cooling) Heating power consumption...
Page 23 Model FDENVA502HENP1R (Indoor unit: 2 units, Outdoor unit: 1 unit) FDENVA502HENP1R Model Item FDENA251R FDCVA502HENR 12.5 [6.5~14.0] Nominal cooling capacity Nominal heating capacity 14.0 [6.2~16.0] Power source 1 Phase, 220/230/240V 50Hz Cooling power consumption 4.23 Running current (Cooling) 18.5 Power factor (Cooling) Heating power consumption 3.83 Running current (Heating)
Page 24 Model FDENVA602HENP1R (Indoor unit: 2 units, Outdoor unit: 1 unit) FDENVA602HENP1R-P1RSB Model Item FDENA301R FDCVA602HENR Nominal cooling capacity 14.0 [6.7~14.5] Nominal heating capacity 16.0 [6.3~16.5] Power source 1 Phase, 220/230/240V 50Hz Cooling power consumption 4.84 Running current (Cooling) 21.2 Power factor (Cooling) Heating power consumption 4.59 Running current (Heating)
Page 25 Model FDENVA802HESP1R (Indoor unit: 2 units, Outdoor unit: 1 unit) FDENVA802HESP1R Model Item FDENA401R FDCVA802HESR Nominal cooling capacity 20.0 [7.0~22.4] Nominal heating capacity 22.4 [7.6~25.0] Power source 3 Phase, 380/400/415V 50Hz Cooling power consumption 6.47 Running current (Cooling) Power factor (Cooling) 5.97 Heating power consumption Running current (Heating)
Page 26 Model FDENVA1002HESP1R (Indoor unit: 2 units, Outdoor unit: 1 unit) FDENVA1002HESP1R Model Item FDENA501R FDCVA1002HESR Nominal cooling capacity 25.0 [10.6~28.0] Nominal heating capacity 28.0 [9.5~31.5] Power source 3 Phase, 380/400/415V 50Hz Cooling power consumption 9.01 Running current (Cooling) 13.5 Power factor (Cooling) Heating power consumption 8.05 Running current (Heating)
Page 27 (c) Triple type Model FDENVA602HEN T1R (Indoor unit: 3 units, Outdoor unit: 1 unit) FDENVA602HENT1R Model Item FDENA201R FDCVA602HENR 14.0 [6.7~14.5] Nominal cooling capacity 16.0 [6.3~16.5] Nominal heating capacity Power source 1 Phase, 220/230/240V 50Hz Cooling power consumption 4.85 Running current (Cooling) 21.2 Power factor (Cooling) Heating power consumption...
Page 28 Model FDENVA802HEST1R (Indoor unit: 3 units, Outdoor unit: 1 unit) FDENVA802HEST1RSB Model Item FDENA301R FDCVA802HESR Nominal cooling capacity 20.0 [7.0~22.4] Nominal heating capacity 22.4 [7.6~25.0] Power source 3 Phase, 380/400/415V 50Hz Cooling power consumption 6.40 Running current (Cooling) Power factor (Cooling) Heating power consumption 5.90 Running current (Heating)
Page 29: Wall Mounted Type (Fdkn)
(3) Wall mounted type (FDKN) (a) Twin type Model FDKNVA402HENP1R (Indoor unit: 2 units, Outdoor unit: 1 unit) FDKNVA402HENP1R Model Item FDKNA201R FDCVA402HENR Nominal cooling capacity 10.0 [6.1~11.2] Nominal heating capacity 11.2 [5.6~12.5] Power source 1 Phase, 220/230/240V, 50Hz Cooling power consumption 2.90 Running current (Cooling) 12.8...
Page 30 Model FDKNVA502HENP1R (Indoor unit: 2 units, Outdoor unit: 1 unit) FDKNVA502HENP1R Model Item FDKNA251R FDCVA502HENR Nominal cooling capacity 12.5 [6.5~14.0] Nominal heating capacity 14.0 [6.2~16.0] Power source 1 Phase, 220/230/240V, 50Hz 4.14 Cooling power consumption 18.1 Running current (Cooling) Power factor (Cooling) 4.39 Heating power consumption 19.2...
Page 31 (c) Triple type Model FDKNVA602HEN T1R (Indoor unit: 3 units, Outdoor unit: 1 unit) FDKNVA602HENT1R Model Item FDKNA201R FDCVA602HENR Nominal cooling capacity 14.0 [6.5~14.5] Nominal heating capacity 16.0 [6.3~16.5] Power source 1 Phase, 220/230/240V, 50Hz 4.82 Cooling power consumption 21.1 Running current (Cooling) Power factor (Cooling) 4.79...
Page 32: High Static Pressure Duct Type (Fdu)
(4) High static pressure duct type (FDU) (a) Single type Model FDUVA802HES1R FDUVA802HES1R Model Item FDUA801R FDCVA802HESR Nominal cooling capacity 20.0 [7.0~22.4] Nominal heating capacity 22.4 [7.6~25.0] Power source 3 Phase, 380/400/415V 50Hz Cooling power consumption 6.50 Running current (Cooling) 10.5 Power factor (Cooling) Heating power consumption...
Page 33 Model FDUVA1002HES1R FDUVA1002HES1R Model Item FDUA1001R FDCVA1002HESR Nominal cooling capacity 25.0 [10.6~28.0] Nominal heating capacity 28.0 [9.5~31.5] Power source 3 Phase, 380/400/415V 50Hz Cooling power consumption 9.05 Running current (Cooling) 14.8 Power factor (Cooling) Heating power consumption 8.22 Running current (Heating) 14.0 Power factor (Heating) Inrush current (L.R.A)
Page 34: Ceiling Mounted Duct Type (Fdur)
(5) Ceiling mounted duct type (FDUR) (a) Single type Model FDURVA402HEN1R Model FDURVA402HEN1R Item FDURA401R FDCVA402HENR Nominal cooling capacity 10.0 [6.1~11.2] Nominal heating capacity 11.2 [6.0~12.5] Power source 1 Phase, 220/230/240V 50Hz 2.88 Cooling power consumption 12.7 Running current (Cooling) Power factor (Cooling) Heating power consumption 3.08...
Page 35 Model FDURVA502HEN1R FDURVA502HEN1R Model Item FDURA501R FDCVA502HENR Nominal cooling capacity 12.5 [6.7~14.0] Nominal heating capacity 14.0 [6.2~16.0] Power source 1 Phase, 220/230/240V 50Hz 4.04 Cooling power consumption 17.8 Running current (Cooling) Power factor (Cooling) Heating power consumption 3.79 Running current (Heating) 16.6 Power factor (Heating) Inrush current (L.R.A)
Page 36 Model FDURVA602HEN1R FDURVA602HEN1R Model Item FDURA601R FDCVA602HENR Nominal cooling capacity 14.0 [6.7~14.5] Nominal heating capacity 16.0 [6.3~16.5] Power source 1 Phase, 220/230/240V 50Hz 4.78 Cooling power consumption Running current (Cooling) 21.0 Power factor (Cooling) Heating power consumption 4.43 19.5 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Noise level...
Page 37 (b) Twin type Model FDURVA402HENP1R (Indoor unit: 2 units, Outdoor unit: 1 unit) FDURVA402HENP1R Model Item FDURA201R FDCVA402HENR 10.0 [6.1~11.2] Nominal cooling capacity 11.2 [6.0~12.5] Nominal heating capacity Power source 1 Phase, 220/230/240V, 50Hz 2.95 Cooling power consumption Running current (Cooling) 12.9 Power factor (Cooling) Heating power consumption...
Page 38 Model FDURVA502HENP1R (Indoor unit: 2 units, Outdoor unit: 1 unit) FDURVA502HENP1R Model Item FDURA251R FDCVA502HENR 12.5 [6.7~14.0] Nominal cooling capacity 14.0 [6.2~16.0] Nominal heating capacity Power source 1 Phase, 220/230/240V, 50Hz Cooling power consumption 4.13 Running current (Cooling) 18.1 Power factor (Cooling) Heating power consumption 3.83 Running current (Heating)
Page 39 Model FDURVA602HENP1R (Indoor unit: 2 units, Outdoor unit: 1 unit) FDURVA602HENP1R Model Item FDURA301R FDCVA602HENR Nominal cooling capacity 14.0 [6.7~14.5] Nominal heating capacity 16.0 [6.3~16.5] Power source 1 Phase, 220/230/240V, 50Hz Cooling power consumption 4.93 Running current (Cooling) 21.7 Power factor (Cooling) Heating power consumption 4.67 20.6...
Page 40 Model FDURVA802HESP1R (Indoor unit: 2 units, Outdoor unit: 1 unit) FDURVA802HESP1R Model Item FDURA401R FDCVA802HESR Nominal cooling capacity 20.0 [7.0~22.4] Nominal heating capacity 22.4 [7.6~25.0] Power source 3 Phase, 380/400/415V 50Hz Cooling power consumption 6.58 Running current (Cooling) 10.3 Power factor (Cooling) 6.19 Heating power consumption 10.0...
Page 41 Model FDURVA1002HESP1R (Indoor unit: 2 units, Outdoor unit: 1 unit) FDURVA1002HESP1R Model Item FDURA501R FDCVA1002HESR Nominal cooling capacity 25.0 [10.6~28.0] Nominal heating capacity 28.0 [9.5~31.5] Power source 3 Phase, 380/400/415V 50Hz 8.52 Cooling power consumption 13.4 Running current (Cooling) Power factor (Cooling) Heating power consumption 7.95 Running current (Heating)
Page 42 (c) Triple type Model FDURVA602HEN T1R (Indoor unit: 3 units, Outdoor unit: 1 unit) FDURVA602HENT1R Model Item FDURA201R FDCVA602HENR 14.0 [6.7~14.5] Nominal cooling capacity 16.0 [6.3~16.5] Nominal heating capacity Power source 1 Phase, 220/230/240V, 50Hz Cooling power consumption 4.96 Running current (Cooling) 21.7 Power factor (Cooling) Heating power consumption...
Page 43 Model FDURVA802HEST1R (Indoor unit: 3 units, Outdoor unit: 1 unit) FDURVA802HEST1R Model Item FDURA301R FDCVA802HESR Nominal cooling capacity 20.0 [7.0~22.4] Nominal heating capacity 22.4 [7.6~25.0] Power source 3 Phase, 380/400/415V 50Hz Cooling power consumption 6.49 Running current (Cooling) Power factor (Cooling) 6.13 Heating power consumption Running current (Heating)
Page 44: Range Of Usage & Limitations
1.2.2 Range of usage & limitations Models FDCVA402 ~ 602 series FDCVA 802, 1002 series Item Indoor return air temperature (Upper, lower limits) Refer to the selection chart (see page 70) Outdoor air temperature (Upper, lower limits) Indoor unit atmosphere (behind ceiling) Dew point temperature: 28˚C or less, relative humidity: 80% or less temperature and humidity Refrigerant line (one way) length...
Page 45 Height and length restrictions for refrigerant piping FDCVA402~602 One-way pipe length (m) L +ra +rb Twin type 10, ra 20, rb Ira –rbI Branch pipe length (m) Outdoor unit Indoor unit Difference in height between indoor units (m) h=0.5 or less FDCVA802, 1002 One-way pipe length (m) L +ra 70, L +rb...
Page 46: Exterior Dimensions
1.2.3 Exterior dimensions (1) Indoor unit (a) Ceiling recessed type (FDT) Models FDTA201R, 251R unit : mm Decorative Panel Outside air (Ceiling hole size) 860~890 opening for (Suspension bolts pitch) ducting Control box Exhaust air opening for ducting Liquid piping Air supply Air return grille ø6.35(1/4")
Page 47 Model FDTA301R unit : mm Decorative Panel Outside air (Ceiling hole size) 860~890 opening for (Suspension bolts pitch) ducting Control box Exhaust air opening for ducting Liquid piping Air supply Air return grille ø9.52(3/8") VIEW A Gas piping Drain hose piece ø15.88(5/8") (Accessory) (Installed at site)
Page 48 Model FDTA401R unit : mm Decorative Panel Outside air (Ceiling hole size) 860~890 opening for (Suspension bolts pitch) ducting Exhaust air opening for ducting Air supply Air return grille Gas piping VIEW A ø15.88 (5/8") Drain hose piece (Accessory) (Installed at site) Suspension bolts 295~325 Drain...
Page 49 Models FDTA501R, 601R unit : mm Decorative Panel Outside air (Ceiling hole size) 860~890 opening for (Suspension bolts pitch) ducting Control box Exhaust air opening for ducting Liquid piping ø9.52 (3/8") Air supply Air return grille Gas piping VIEW A ø15.88 (5/8") Drain hose piece (Accessory)
Page 50 (b) Ceiling suspended type (FDEN) Model FDENA201R 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 hose connection(1) 1070 (VP20) Air supply Indication board Note(1) The slope of drain piping inside the unit is able to take incline of 10mm.
Page 51 Models FDENA401R, 501R, 601R 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 hose connection(1) 1620 (VP20) Air supply Indication board Note(1) The slope of drain piping inside the unit is able to take incline of 10mm.
Page 52 Model FDKNA251R Unit : mm Installation position diagram and installation space, from the front. Service Mounting plate Unit space Service 4-12 18 space 5073.5 73.5 long hole 207.5 182.5 14.5 3 60 63.5 Hole on wall for rear connection 387.5 53.5 (ø65) 457.5...
Page 53 (d) High static pressured duct type (FDU) Models FDUA801R, 1001R 794 (Suspension bolts pitch) Holes for screw Air return duct (M5 20 pcs.) 6 200 = 1200 1500 (Duct dimension) Control box VIEW A Gas piping Liquid piping ø25.4 (1") 801: ø9.52 (3/8") 1001: ø12.7 (1/2") Suspension bolts...
Page 54 (e) Ceiling mounted duct type (FDUR) Models FDURA201R, 251R Unit : mm (Low of suspension lug) (Dimension for duct) Control box Suspension bolts (M10 4pcs) Air return duct 886 (Suspension bolts pitch) 850 (Dimension for duct) Liquid piping ø6.35 (1/4”) Air supply duct Gas piping 201:ø12.7 (1/2”)
Page 55 Model FDURA301R Unit : mm (Low of suspension lug) (Dimension for duct) Control box Suspension bolts (M10 4pcs) Air return duct 886 (Suspension bolts pitch) 850 (Dimension for duct) Liquid piping ø9.52 (3/8”) Air supply duct Gas piping ø15.88 (5/8”) Drain (Connectable with VP25) Drain (Gravity drainage, VP20)
Page 56 Models FDURA401R, 501R, 601R Unit : mm (Dimension for duct) (Low of suspension lug) Control box Suspension bolts Air return duct (M10 4pcs) 1406 (Suspension bolts pitch) 1370 (Dimension for duct) Liquid piping ø9.52 (3/8”) Air supply duct Gas piping ø15.88 (8/5”) Drain (Connectable with VP25)
Page 57: Remote Controller (Optional Parts)
(2) Remote controller (Optional parts) (a) Wired remote controller Unit : mm Installation with wiring exposed Installation with wiring recessed Wall 0.3mm , 3cores (O.D.ø5.6) Wire (Recessed) LCD display Electrical box (Locally Purchased) Remote controller mounting dimensions Cut off with a knife or the like thin walled parts intend- Remote controller ed for screw holes, and then...
Page 58 (b) Wireless remote controller Unit: mm...
Page 59: Outdoor Unit
(3) Outdoor unit Models FDCVA402HENR, 502HENR, 602HENR Unit : mm Gas piping: ø15.88(5/8") Liquid piping: ø9.52(3/8") (Flare connecting) (Flare connecting) Terminal block Liquid piping: ø9.52(3/8") (Flare connecting) Gas piping: ø15.88(5/8") (Flare connecting) Opening for electic wring Opening for Opening for piping piping and and electic wring electic wring...
Page 60 Model FDCVA802HESR Unit : mm Liquid piping: ø9.52(3/8") (Flare connecting) Gas piping: ø25.4(1") (Brazing connecting) Terminal block Liquid piping: ø9.52(3/8") (Flare connecting) Gas piping: ø25.4(1") (Brazing connecting) Opening for Opening for electic wring electic wring Opening for Opening for piping piping and and electic wring electic wring...
Page 61 Unit : mm Model FDCVA1002HESR Liquid piping: ø12.7(1/2") (Flare connecting) Gas piping: ø25.4(1") (Brazing connecting) Terminal block Liquid piping: ø12.7(1/2") (Flare connecting) Gas piping: ø25.4(1") (Brazing connecting) Opening for Opening for electic wring electic wring Opening for Opening for piping piping and and electic wring electic wring...
Page 62: Inside View
1.2.4 Inside view Models FDCVA402HENR, 502HENR, 602HENR Control box High pressure switch 63H1 Electronic expansion valve (cooling) (SM1) Electronic expansion valve (heating) (SM2) Compressor Service valve Lower pressure sensor (Liquid side) Service valve (LPT) (Gas side) Model FDCVA802HESR Control box High pressure switch 63H1 Lower pressure sensor...
Page 63 Model FDCVA1002HESR Control box High pressure switch 63H1 Lower pressure sensor (LPT) Electronic expansion valve (cooling) (SM1) Service valve (Liquid side) Service valve (Gas side) Electronic expansion valve (heating) (SM2) Compressor Solenoid valve (SV2)
Page 64: Exterior Appearance
1.2.5 Exterior appearance (1) Indoor unit (a) Ceiling recessed type (FDT) Plaster white (b) Ceiling suspended type (FDEN) Light gray Light gray (Vertical louver) Plaster white Plaster white (Horizontal louver) (Side panel) (Front panel) Plaster white (Front panel) Plaster white (Air inlet grille) (c) Wall mounted type (FDKN) Cool white...
Page 65 (2) Outdoor unit Models FDCVA402, 502, 602HENR Model FDCVA802HESR Polar white Polar white Model FDCVA1002HESR Polar white...
Page 66: Piping System
1.2.6 Piping system (1) Single type Models FDCVA402, 502, 602 series Indoor unit Outdoor unit Cooling cycle Heating cycle Check joint 4way valve Thermistor Gas line (ø15.88) Service valve Check joint (Flare connecting) Heat exchanger Heat exchanger High pressure Check switch valve Thermistor...
Page 67 (2) Twin type Models FDCVA402HENR, 502HENR, 602HENR Gas branch pipe 201: ø12.7 251, 301: ø15.88 Indoor unit Indoor unit Outdoor unit Cooling cycle Heating cycle Check joint 4way valve Thermistor Gas line (ø15.88) Service valve Flare connecting Check joint (Flare connecting) Heat exchanger Heat exchanger High pressure...
Page 68 (3) Triple type Model FDCVA602HENR Gas branch pipe (ø12.7) Cooling cycle Heating cycle Indoor unit Indoor unit Indoor unit Outdoor unit Check joint 4way valve Thermistor Gas line (ø15.88) Flare connecting Service valve Check joint (Flare connecting) Heat exchanger Heat exchanger High pressure Check switch...
Page 69 (4) Double twin type Models FDCVA802HESR, 1002HESR 2nd branch pipe of gas (ø15.88) Outdoor unit Cooling cycle Heating cycle 1st branch Indoor unit Indoor unit Check joint pipe of gas 4way valve Thermistor Gas line (ø15.88) (ø25.4) Muff Service valve (Flare connecting) Branch pipe Check joint...
Page 70 Preset point of the protective devices Equipped Parts name Mark FDCVA402, 502, 602 models FDCVA802, 1002 models unit Thermistor OFF 63˚C (for protection over- ON 56˚C loading in heating) Indoor unit OFF 1.0˚C Thermistor (for frost prevention) ON 10˚C Thermistor OFF 115˚C OFF 135˚C (for detecting dis-...
Page 71: Selection Chart
1.2.7 Selection chart Correct the cooling and heating capacity in accordance with the conditions as follows. The net cooling and heating capacity can be obtained in the following way. Net capacity = Capacity shown on specification × Correction factors as follows. (1) Capacity compensation coeffcient (At a powerful mode) (a) Cooling Models FDCVA402 ~ 602...
Page 72 (b) Heating Models FDCVA402 ~ 602 Models FDCVA402 ~ 602 series Outdoor air 1.10 temperature 18.5°CW.B 1.00 Outdoor air Outdoor air temperature 6°CW.B temperature 10°CW.B 0.90 Outdoor air temperature 1°CW.B 0.80 Outdoor air 0.70 temperature 0 W.B Outdoor air temperature -10°CW.B 0.60 0.50 Indoor air temperature (°CD.B)
Page 73 (2) Power consumption correction factor (At a powerful mode) (a) Cooling Models FDCVA402 ~ 602 Models FDCVA402 ~ 602 series 1.10 Indoor air temperature 24°CW.B 1.00 Indoor air temperature 19°CW.B 0.90 Indoor air 0.80 temperature 16°CW.B 0.70 Indoor air temperature 12°CW.B 0.60 0.50 Outdoor air temperature (°CD.B)
Page 74 (b) Heating Models FDCVA402 ~ 602 Models FDCVA402 ~ 602 series Outdoor air Outdoor air 1.10 temperature 1°CW.B temperature 0°CW.B Outdoor air temperature 6°CW.B 1.00 Outdoor air 0.90 temperature 10°CW.B Outdoor air temperature -10°CW.B 0.80 Outdoor air 0.70 temperature 18.5°CW.B 0.60 Indoor air temperature (°CD.B) Models FDCVA802,1002...
Page 75 (3) Sensible heat factor Models FDCVA402 ~ 602 series Models FDCVA402 ~ 602 1.10 1.00 Indoor air 0.90 temperature 12°CW.B Indoor air Indoor air temperature 16°CW.B temperature 19°CW.B 0.80 0.70 Indoor air 0.60 temperature 24°CW.B 0.50 -15 -12 Outdoor air temperature (°CD.B) Models FDCVA802, 1002 series Models FDCVA802,1002 1.10...
Page 76 (4) Table of bypass factor (FDT, FDEN, and FDKN series figures show the bypass factor when in the powerful mode.) Model FDT type Model FDTA201R FDTA251R, 301R FDTA401R FDTA501R FDTA601R Item 0.186 0.040 0.027 0.025 0.028 Air flow 0.160 0.031 0.021 0.021 0.022...
Page 77 ● Outdoor air temperature degree -15°C Equivalent piping length Heating 0.998 0.998 0.993 0.993 0.988 0.988 FDCVA402 model 0.983 0.948 0.913 0.878 0.843 0.808 0.773 0.738 0.703 0.668 FDCVA502 model ø15.88 0.980 0.940 0.901 0.861 0.821 0.782 0.742 0.702 0.662 0.623 FDCVA602 model 0.979 0.938 0.897 0.856 0.814 0.773 0.732 0.690 0.649 0.608 Cooling...
Page 78 How to obtain the cooling and heating capacity Example : The net cooling capacity of the model FDTVA402HEN1R with the air flow “High”, the piping length of 15m, the outdoor unit located 5m lower than the indoor unit, indoor wet-bulb temperature at 19.0 ˚C and outdoor dry-bulb temperature 35 ˚C is ×...
Page 79: Characteristics Of Fan
1.2.8 Characteristics of fan (1) High static pressure ducted type (FDU) (a) Standard (Factory Settings) Model FDUA801R Model FDUA1001R • Condition of standard rating • Condition of standard rating rated air volume: 100Pa rated air volume: 100Pa Example Example of duct of duct !&...
Page 80 (2) Ceiling mounted duct type (FDUR) Model FDURA201R Model FDURA251R & Standard Standard pressure pressure " & 13 12 14 Lower Lower Standard Upper Standard Upper limit limit limit limit air flow air flow Air flow(m /min) Air flow(m /min) Model FDURA301R Model...
Page 81: Noise Level
Models FDUR501R, 601R Standard pressure 33.5 35.5 37.5 39.5 41.5 43.5 45.5 47.5 49.5 Lower limit Upper Standard limit air flow Air flow(m /min) 1.2.9 Noise level Notes (1) The data are based on the following conditions. Ambient air temperature: Indoor unit 27˚C DB, 19˚C WB. Outdoor unit 35˚C DB. Notes (2) The data in the chart are measured in an unechonic room.
Page 82 Model FDTA401R Models FDTA501R, 601R Noise level 46 dB (A) at HIGH Noise level 48 dB (A) at HIGH 43 dB (A) at MEDIUM 45 dB (A) at MEDIUM 41 dB (A) at LOW 43 dB (A) at LOW 1000 2000 4000 8000...
Page 83 (c) Wall mounted type (FDKN) Unit Measured based on JIS B 8616 Mike position as right Mike (Center & Low points) Model FDKNA201R Model FDKNA251R Noise level 47 dB (A) at HIGH Noise level 48 dB (A) at HIGH 44 dB (A) at MEDIUM 45 dB (A) at MEDIUM 41 dB (A) at LOW 42 dB (A) at LOW...
Page 84: Outdoor Unit
Model FDURA401R Models FDURA501R, 601R Noise level 42 dB (A) at HIGH Noise level 43 dB (A) at HIGH 37 dB (A) at LOW 38 dB (A) at LOW 1000 2000 4000 8000 1000 2000 4000 8000 Mid Octave Band Frequency (Hz) Mid Octave Band Frequency (Hz) (2) Outdoor unit Measured based on JIS B 8616...
Page 86 (0.16A)
Page 93: Outline Of Operation Control By Microcomputer
OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER (1) Remote controller (a) Wired remote controller 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 94 (b) Wireless remote controller Indication section AIR FLOW indicator ROOM TEMP. indicator Indicates the condition of swing flap. Indicates set temperature. OPERATION MODE indicator FAN SPEED indicator Indicates selected operation with lamp. Indicates the selected blow rate. FILTER indicator ON-TIMER indicator Indicates for 2 seconds when FILTER button Indicated when ON-TIMER is set.
Page 95: Operation Control Function By The Indoor Controller
(2) Operation control function by the indoor controller (a) Room temperature control (Differential of thermostat) Heating operation Cooling operation Set temp.by thermostat Set temp.by thermostat Temperature difference between thermostat set Temperature difference between thermostat set temp. temp. and return air temp. (Detected by Th and return air temp.
Page 96 (d) Dehumidifying operation (“THERMAL DRY”) The compressor, the indoor fan motor and the outdoor fan Operation block motor are operated intermittently under thermistor (Th control according to the appropriate operation block, to pro- vide cooling operation for the dehumidifying. High Set temp.
Page 97 4) Weekly Timer Each day, it is possible to set this timer's operation up to 4 times (On time, or Off timer). 5) Possible joint use timer operation setting combinations Simple Timer Time Off Timer Time On Timer Weekly Timer Simple Timer Time Off Timer Time On Timer...
Page 98 (h) Room temperature sensing temperature compensation during heating In the standard specifications, the temperature set on the thermostat is used to turn the compressor on and off, but in cases where the warm air easily escapes to the ceiling and the thermostat ends up turning off too soon, Jumper wire J4 (SW7-4) on the indoor PCB can be disconnected.
Page 99 (k) Condensate pump motor (DM) Control [FDT and FDUR models only] (a) Drain motor is started no sooner than the compressor is turned ON during cooling or dehumidifying operation. The drain motor continues to operate for 5 minutes after the stop of unit operation, stop with the error stop, thermostat stop and at switching from cooling or dehumidifying operation to blowing or heating operation.
Page 100 (q) Using 1 remote controller to control multiple units (indoor units - up to 16 units) 1) Function A single remote control switch can be used for group control of multiple units (indoor units - up to 16 units). All units in the group that have had the remote control switch set at [Operating Mode] can be turned on and off in order of the unit number.
Page 101 a) At shipping from factory J1 (SW7-1) on PCB OFF ● Input signal to CnT OFF → ON [Edge input] ... Air conditioner ON ● Input signal to CnT ON → OFF [Edge input] ... Air conditioner OFF nT Input Note (1) The ON at the * mark indicates ON using the remote control switch, etc.
Page 102: Operation Control Function By The Wired Remote Controller
(3) Operation control function by the wired remote controller (a) Remote controller operation mode switch switching sequence COOL HEAT AUTO (b) CPU reset If the “GRILL” switch and “CHECK” switch on the remote controller are pressed at the same time, this function is activated. Power supply reset and run are the same.
Page 103: Operation Control Function By The Outdoor Controller
(4) Operation control function by the outdoor controller (a) Deciding the compressor speed The indoor unit’s return air temperature ad the set temperature are used to carry out fuzzy calculations, then the required speed is decided. Speed control compensation is then activated to decide the speed. Unit required speed ( i ) Dehumidify and cooling operation Units: rps...
Page 104 ● When the low pressure sensor (PSL) measures 0.079 MPa or lower continuously for 15 seconds. ● When the indoor unit’s heat exchanger temperature (ThI-R) after 1 minutes has passed since the compres- sor started is 4°C lower than the indoor unit air return temperature (ThI-A) continuously for 1 minute or longer.
Page 105 (iii) Outdoor unit fan control 1) Fan tap control during cooling and dehumidifying The fan tap’s speed is changed in accordance with the outdoor unit heat exchanger temperature (Tho-R1, R2) and outdoor air temperature (Tho-A). Note (1) Either the Tho-R1 or R2 temperature, whichever temperature is sensed to be higher (Tho-R2 in models 802 and 1002 only). ●...
Page 106 6) Outdoor unit fan control by power transistor cooling fan temperature If all the following conditions are established 3 minutes after the compressor starts, the following control is imple- mented. a) Cooling, Dehumidifying ● Outdoor air temperature Tho-A > = 33°C ●...
Page 107 (iii) If any of the following conditions is established, this control ends and the fan runs at the fan tap set in item (d). (iii). 1) The outdoor air temperature (Tho-A) is in Zone A and the outdoor heat exchanger temperature (Tho-R1, R2) is sensed to be 30°C or higher continuously for 40 seconds or longer.
Page 108 (ii) Changing the defrosting start temperature Turn the DIP switch (SW3-1) on the outdoor unit’s control PCB ON. 1) Defrosting condition A After defrosting ends, 30 minutes passes cumulatively of the compressor running in a heating operation. 2) Defrosting condition B After defrosting ends, 25 minutes passes cumulatively of the compressor running in a heating operation.
Page 109 (iii) Current safe control 1) If the inverter inflow current (CT current) becomes higher than the following set value, the compressor’s speed is lowered. If the current is still above the set value after the speed is lowered, the speed is lowered still further. Set valve (A) Model 402, 502, 602...
Page 110 2) Low pressure error detection a) If either of the following conditions is satisfied, the compressor is stopped. 1 If the low pressure is 0.079 MPa or lower continuously for 15 seconds after the compressor starts. 2 If the low pressure is 0.15 MPa after 10 minutes have passed since the compressor started and superheating at 30°C continues for 60 seconds.
Page 111 ● Outdoor heat exchanger thermistor: -50°C or lower ● Outdoor temperature thermistor: -30°C or lower ● Low pressure sensor: 0 V or lower, or 3.49 V or higher. (ii) Discharge pipe temperature thermistor, suction pipe temperature thermistor, under-dome temperature thermistor, (mod- els 802, 1002 only) After the compressor goes ON, if the following is detected for 5 seconds continuously between 10 minutes and 10 minutes 20 seconds after the compressor goes ON, the compressor stops.
Page 112 ( n) Pump down control If the pump down switch SW1 is turned on for 2 seconds during an operation stop and abnormal stop (not including when the thermostat is OFF), pump down operation starts. (It is disabled during indoor unit operation. It is enabled during an abnormal stop of the indoor unit and during power OFF.) ( i ) Control contents 1) Close the liquid side service valve.
Page 113: Application Data
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 the WARNING section.
Page 114: Installation Of Indoor Unit
1.5.1 Installation of indoor unit (1) Ceiling recessed type (FDT) (a) Selection of installation location 1) Select location where the space above ceiling is larger than those mentioned Model Space above ceiling (h) right side and perfect draining can be assured. FDT201R, 251R, 301R Over 290mm 2) With the customer’s consent, select a location with following suitable condi-...
Page 115 (c) Suspension ● Please arrange four sets of a suspension bolt (M10 or M8), a nut matching the bolt, a flat washers and a spring washer on the installation site. When suspension from the ceiling 1) In the case of the standard series: Cut and opening of ▫ 860 ~ ▫ 890. In cutting an operating on the ceiling, use the unit’s cardboard container for shipment as a reference of the size of opening.
Page 116 b) Give the drain piping a descending grade (1/50-1/100) and never Suspension 1.5 m ~ 2 m bolts create a bump to go over or a trap. c) In connecting drain pipes, care must be taken so as not to apply force to the unit side piping and fix the pipe at a point as close to the unit as Insulation Desceding slope...
Page 117 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 118 4) Removing the air return grille 1 Raise up the notched portion of the air return grille and open it. 2 With the air return grille open, remove the air return grille hinge from the decorator panel. 5) Removing the corner panel •...
Page 119 4 Connect the (white, 5p) louver motor con- nector. 5 Place each of the connectors inside the con- trol box. Note (1) : If the air supply louver does not operate us- ing the remote controller, check the connector’s connection, then turn the main power supply OFF for 10 seconds or longer and turn the power ON again.
Page 120: Ceiling Suspended Type (Fden)
8) Corner panel installation 1 Hook the corner panel strap to the pin on the decorator panel as shown in the figure. 2 Insert part a on the corner panel in part A on the decorator panel, then fit the 2 claws and fasten the corner panel screw.
Page 121 6) This unit uses a microcomputer as a control device. Therefore avoid installing the unit near the equipment that generates strong electromagnetic waves and noise. (b) Wireless remote control unit operation distance. 1) Standard signal receiving range. [Condition] Illuminance at the recelver area: 360 lux. (When no lighting fixture is located within 1 m of indoor unit in an ordinary office) (Top view) Ceiling sur face...
Page 122 3) Remove the suspension lug. Take out the screws, then loosen the installation bolt. Suspension lug screws (M4) Loosening Indoor unit margin 8~12 mm Suspension Lug for lug mounting suspension bolt (M8) 4) Suspension bolt position Lug for suspension a) Using the paper pattern supplied as an accessory as a criterion, select suspension bolt positions and piping hole positions, then install the suspension bolts and Paper...
Page 123 3) In order to make it easier for water to drain out, install the unit so that the water drain side slopes downward. ● Front-rear direction ● Left-right direction (The figure shows the case where the drain hose is on the right side.) (If the connection is on the left side, reverse the slope.) If the slope is reversed, there is danger of water leaking out.
Page 124: Wall Mounted Type (Fdkn)
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. Drain hose Drain hose Hose Clamp...
Page 125 Relation between illumination at receiver Caution item for close installation of unit and operating distance multiple units (Top view) (Top view) Receivable range Receivable range 60° 60° 60° [Condition] Illumination at suction grill face 800 lux 2) Cautions for operation a) Orient the remote control switch properly toward the receiver of the unit.
Page 126 2) Cautions for left take-out and rear take-out case a) Looking down b) The piping can be taken out from the rear, left, left rear, right and down. For left running horizontal piping For right running horizontal piping For left rear take-out piping For right rear take-out piping Right For left running horizontal piping...
Page 127: High Static Pressure Duct Type (Fdu)
(4) High static pressure duct type (FDU) (a) Selection of installation location 1) Install the unit at a place as shown below and which meets the conditions as shown by the following table. Unit : mm Service Front view Top view space When the conditions as shown at All Series...
Page 128 (b) Installation <Packing hardware> <Securing of hanging bolt> <Delivery> Four pieces of packing hardware are Secure the hanging bolts by either one When delivering the package, move the used. package to the installation as close as of following methods. Discard them after unpacking. possible.
Page 129 <Simplified method for determination of duct dimensions> In the following method, it is assumed that the friction resistance per unit length of duct is <Table of simplified selection 1 Pa/m (0.1 mm Aq/m) and a side of duct is 250 mm. of duct dimensions>...
Page 130 (e) Drain test When the drain piping work is over, inject water to inspect if the piping is arranged properly or not. Remove the side panel and supply gradually 1,000 cc of water to see if water is drained smoothly or not. Check also for water leakage. Operating method of fan controller (Option) This unit allows to continuously adjust the air volume with the fan controller switch which is built the electric equipment box.
Page 131: Ceiling Mounted Duct Type (Fdur)
(5) Ceiling mounted duct type (FDUR) (a) 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 132 1) Fixing the suspension bolt (customer ordered parts M10) Securely fix the suspension bolt as illustrated below or in another way. Suspension bolt Hole in anchor bolt M10 nuts Suspension bolt M10 Hole-in plug Insert M10 Washer Indoor unit Indoor unit Concrete Suspension bolt M10 M10 Spring washer...
Page 133 CAUTION ● Taps should not be used under static pressure outside the unit mentioned above. Dew condensation may occur with the unit and wet the ceiling or furniture. ● Do not use under static pressure outside the unit of 50Pa or less. Water drops may be blown from the diffuser outlet of the unit and wet the ceiling or furniture.
Page 134 9) Drainage test a) Conduct a drainage test after completion of the electrical work. b) During the trial, make sure that drain flows properly through the piping and that no water leaks from connections. c) In case of a new building, conduct the test before it is furnished with the ceiling. d) Be sure to conduct this test even when the unit is installed in the heating season.
Page 135 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. 1 Press the TEST button for three seconds or longer. The display will change from “...
Page 136 Bad example of duct work Louver to outdoor air For ventilation 7) 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 137: Installation Of Wired Remote Controller
The length of each wire that should be left af- 1.5.2 Installation of wired remote controller ter a sheath is removed is as follows: (a) Selection of installation location Avoid the following locations ength of the 1) Direct sunlight. section where a 2) Close to heating device.
Page 138: Installation Of Outdoor Unit
1.5.3 Installation of outdoor unit Notabilia as a unit designed for R410A ● Do not use any refrigerant other than R410A. R410A will rise to pressure about 1.6 times higher than that of a conventional refrigerant. ● 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 139 1) Place the unit outlet pipe perpendicular to the wind direction. Over 500 mm 2) Please install so the direction of the air from the blowing outlet will be perpendicular to the direction of the wind. Wind direction Wind direction Wind direction Wind direction 3) When the foundation is not level, use wires to tie down the unit.
Page 140: Refrigerant Pipng Work
(2) Refrigerant piping work Select the piping specification to fit the specification of Indoor unit and installation location. (a) Decision of piping specification Piping specification Unit : mm Single type Outdoor unit model Gas pipe Liquid pipe FDCVA402, 502, 602 ø...
Page 141 ● The branch piping (both gas and liquid lines) should always be arranged to have a level or perpendicular branch. < 2-Way Branch > Floor Floor Floor Mount sections Mount sections level with the floor. perpendicular to the floor. < 3-Way Branch > Floor Floor Floor...
Page 142 (iv) Double twin type Models FDCVA802, 1002 [Branch pipe set : DIS-WA1 2set, DIS-WB1 1set] Indoor unit DIS-WA1 DIS-WB1 Gas line Outdoor unit Liquid line DIS-WA1 Item Liquid pipe Gas pipe Indoor unit combinations Main pipe 1st branch pipe 2st branch pipe Main pipe 1st branch pipe 2st branch pipe...
Page 143 (c) Points for attention in installing refrigerant piping 1) Use pipes made of the following material Wires for connecting Material: Phosphorus deoxidized copper seamless pipes (C1220T, JIS indoor and outdoor H3300) units Exterior tape 2) Please dress the refrigerant piping (both gas and liquid pipes) with a heat Gas piping insulating material for prevention of dew condensation.
Page 144: Air Tightness Test And Air Purge
(d) How to remove the service panel 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. Catch Catch Catch Models FDCVA402~602 Model FDCVA802...
Page 145: Additional Refrigerant Charge
Hexagonal wrench type Compound pressure gauge Pressure gauge Hexagonal Head Wrench Gauge manifold -101KPa (-755mmHg) (M4) (for R410A only) Handle Lo Handle Hi Charge hose (for R410A only) Charge hose Open In-unit check joint (for R410A only) Charge valve Gas service valve Liquid/gas operation Vacuum adapter •...
Page 146: Drain Pipng Work
(5) Drain piping work ● Execute drain piping by using a drain elbow and drain grommets supplied separately as optional parts, where water drained from the outdoor unit is a problem. There are 3 drain holes provided on the bottom plate of an outdoor unit to discharge condensed water.
Page 147 Power cable, indoor-outdoor connecting wires Earth leakage breaker Earth leakage breaker (Harmonic resistant type) (Harmonic resistant type) ● Always perform grounding system installation work Switchgear or circuit breaker Switchgear or circuit breaker with the power cord unplugged. Outdoor unit Outdoor unit CAUTION Indoor unit Indoor unit...
Page 148 Remote controller wiring and connection procedure 1) Master-slave settings when using multiple remote controllers ● Up to 2 remote controllers can be connected for each indoor unit (or group). a) There are two methods, one where the remote controller signal line (3-wire) for the slave remote controller is taken from the indoor unit and the other where the signal lines are taken from the master remote controller.
Page 149: Setting Functions Using The Wired Remote Controller
(7) Setting functions using the wired remote controller (a) The default settings of this unit's functions are as follows: If you want to charge a setting, follow the procedure found in the installation manual and set to your desired setting. For the method of setting, please refer to the installation manual of a remote controller unit.
Page 150 (b) Function setting method Operating guide message 1) Stop the air conditioner Function description: B , Settting: C Function number: A 2) Press the SET and MODE buttons simultaneously for 3 seconds or longer. The screen display will be switched as follows: Confirm Button “...
Page 151 When “I/U FUNCTION ” is selected. 1 The screen display will be switched as follows: “ I/U SELECT” “ SET” “I/U No.00” (blinking) I/U No.00 2 Press either button. Select the indoor unit number that you want to change settings. If only one indoor unit is connected, the indoor unit number will not charge, so please proceed to Step 3.
Page 152 (c) Changing the remote control set temperature range 1) It is possible to change the set temperature range using the remote control. a) The upper and lower set temperature limits can be set from the remote control. Upper limit value setting: Effective during heating. The temperature can be set within a range of 20~30ºC. Lower limit value setting: Effective when running in modes other than the heating mode (AUTO, COOL, FAN, DRY): The temperature can be set within a range of 18~26ºC.
Page 153: Checking Operation Data
• If the RESET button is pressed during a setting operation, the display returns to the previously displayed setting screen. However, settings which have not been fixed become invalid, so exercise caution. * If “NO DISP CHANGE” is selected in No. 12, “TEMP RANGE SET” of the remote controller’s functions, of the function setting modes, the remote controller’s display does not change even if the temperature range has been changed.
Page 154: Test Run
Data item Number (Operation mode) SET TEMP RETURN AIR I/U HEAT EXCH 1 (Indoor unit heat exchanger temperature 1) I/U HEAT EXCH 2 (Indoor unit heat exchanger temperature 2) I/U FAN (Indoor unit fan speed) (Indoor unit operation hours) TOTAL I/U RAN OUTDOOR (Outside air temperature) O/U HEAT EXCH 1...
Page 155 Failure diagnosis in a test run Error indicated Printed circuit board LED (They cycles of 5 seconds) on the remote Failure event Action RED LED GREEN LED control unit Check power cables for loose contact Open phase 1 time flash Keeps flashing or disconnection 63H1 actuation or operation with...
Page 156: Maintenance Data
MAINTENANCE DATA 1.6.1 Servicing (1) Evacuation The evacuation is a procedure to purge impurities, such as noncondensable gas, air, moisture from the refrigerant equipment by using a vacuum pump. Since the refrigerant R410A is very insoluble in water, even a small amount of moisture left in the refriger- ant equipment will freeze, causing what is called ice clogging.
Page 157: Trouble Shooting For Refrigerant Circuit
(2) Refrigerant charging After the evacuation shown in the above, change the connection of the charge hose A to the refrigerant cylinder. Purge air from the charge hose A. First loosen the connecting portion of the charge hose at the gauge manifold side and open valve 3 for a few seconds, and then immediately retighten it after observing that gas has blown out from loosened connecting portion.
Page 160 (b) Display sequence of error, inspection display lamp 1) One kind error Display corresponding to the error is shown. 2) More than one errors. Section Display section • Displays the error of higher priority (When plural errors are persisting) Error code of remote controller ···········...
Page 161: Procedures Of Trouble Diagnosis
4) Recording and reset of error Error display Memory Reset Error code of remote • Saves in memory the mode of higher • Stop the unit operation by pressing the ON/OFF switch of remote controller priority controller. • Operation can be started again if the error has been reset. Indoor unit inspection lamp •...
Page 162 Parts layout on the indoor unit PCB Model: FDT series Fan motor To power supply (151~401) (CNW7) To power supply PCB (501, 601) (CNW9) CNW7 Louver motor CNM3 Fan motor CNW9 (501, 601) 52X8-1 52X7 52X6 52X1 52X2 52X3 PC2 PC1 52X4 Power supply PCB (CNW8)
Page 163 Model: FDEN series PCB power supply connector (Primary side) Power supply CNW1 CNW0 CNM1 PCB power supply connector (Secondary side) Remote controller Fan motor DIP switch (SW5) J5~J7 SW10 (SW8) CNH CNN1 J1~J4 (SW7) DIP switch (SW9) Address switch Connector J9~J11 (SW2) (CNT)
Page 164 Model: FDKN series Heat exchanger thermistor, Return air thermistor Remote controller Heat exchanger thermistor (Thl-R1, Thl-A) (Thl-R2) TB,3 Dip switch (SW5) CNN1 TB,2 J9~J11 SW10 TB,1 (SW10) Dip switch (SW9) J5~J8 CNW1 (SW8) PCB power supply connector J1~J4(SW7) R151 (Primary side) C104 Adress switch IC10...
Page 165 Model: FDUR, FDU series Heat exchanger thermistor, Return air thermistor Address swith (Thl-R1, Thl-A) (SW8) (SW2) Heat exchanger thermistor DIP switch DIP switch (Thl-R2) (SW5) (SW9) Float switch Remote controller J10~J11 J1~J4 Connector (SW10) (SW7) (CNT) CNN1 CNN2 SW10 Drain motor LED2 LED1 52X3...
Page 166 (c) Check method when the error code is display Remote controller or indication board: Inspection LED, error code Indoor unit PCB: Red LED (inspection display), Green LED (CPU. normal display) Outdoor unit PCB: ARed LED (inspection display), Green LED (CPU. normal display) Error display : No display [Power supply line error] LCD display : No display...
Page 167 Indoor unit Outdoor unit Red LED 3 time flash Red LED Stays OFF Keeps flashing Keeps flashing Green LED Green LED Remote controller wiring Correction connect check (Red· White·Black) Approximately Remote controller wire Power supply reset disconnection? Normal? 10 ~ 11 V between Remote controller defective X and Z.
Page 168 Indoor – outdoor communications trouble ” Error display “ WAIT (Initial (when the power is turned on) Indoor unit Outdoor unit If the breaker power supply is turned on again in a short time (within 1 minute), a “ WAIT ”...
Page 169 ● Check display when there are 3-wire wrong connections. Wrong connection example Item Check display 1 and 2/N reversing Remote Control: “ WAIT ” Indoor: Run LED keeps flashing. Check LED stays OFF. Outdoor: Run LED keeps flashing. Check LED 2 time flash. Indoor Unit Outdoor Unit 1 and 3 reversing...
Page 170 Error display [Communication error between remote controller~Indoor unit] Indoor unit Outdoor unit Red LED Stays OFF Red LED Stays OFF Green LED Keeps flashing Green LED Keeps flashing Voltage between X and Z Replacement remote Remote controller approximately controller wire is removed 10~11 V? Is the resistance between...
Page 171 Error display [Defective indoor unit heat exchanger thermistor] Indoor unit Outdoor unit Air return thermistor (Th Stays OFF Red LED 1 time flash Red LED Indoor unit heat exchanger thermistor Keeps flashing R1, R2) Green LED Keeps flashing Green LED Resistance temperature characteristics Defective indoor unit control PCB Replace-ment (Defective indoor unit...
Page 172 Error display [Heating overload] Indoor unit Outdoor unit Stays OFF Red LED 1 time flash Red LED Keeps flashing Green LED Keeps flashing Green LED Notes (1) Check if the overload state exists or not using the following check points. Is there a short circuit? Clean it.
Page 173 [Control of 1 remote controller VS multiple units Error display : Excessive number of units (more than 17 units) ] Indoor unit Outdoor unit Stays OFF Red LED Stays OFF Red LED Keeps flashing Green LED Keeps flashing Green LED Are more than 17 units connected Reduce to 16 units...
Page 174 [Fan motor abnormalities] Error display : Indoor unit Outdoor unit Stays OFF Red LED 3 time flash Red LED Keeps flashing Green LED Keeps flashing Green LED S Only case of FDTA501, 601 types Abnormal data check with remote controller After check reset, fan runs on weak.
Page 175 S Only case of FDKN Abnormal data check with remote controller After check reset, fan runs on Me. Fan ON? 3 (Black) is GND. Check the Replacement indoor 1 and 3 (Red – Black) Was it reproduced? circumstances. unit control PCB DC280V? 3 (Black) is GND.
Page 176 Error display : [Directive remote controller thermistor.] Indoor unit Outdoor unit Red LED Stays OFF Red LED Stays OFF Green LED Keeps flashing Green LED Keeps flashing Are characteristics of Detectivie remote controller PCB Is the remote controller remote controller therm- Replacement (Detective re- thermistor connector co- istor OK or is there any...
Page 177: Error Diagnosis Procedures At The Outdoor Unit Side
(4) Error diagnosis procedures at the outdoor units side At the error diagnosis related to the outdoor unit, check at first the error code of remote controller and the illumination patterns of norma1 and inspection display lamps in the same manner as the case of indoor unit. Then estimate the outline, the cause and the location of error based on the pattern and proceed to the inspcetion and repair.
Page 178 Parts layout on the outdoor unit PCB Expansion valve Model setting switch High pressure switch Outdoor unit (SM1, 2) JSW1 power supply NEEV1 NEEV2 Thermistor LED4 (802, 1002 only) LED5 (Tho-H) LED6 Thermistor (802, 1002 only) (Tho-R2) 52X6 52X5 52X4 52X3 52X2 52X1...
Page 179 Parts layout on the outdoor unit inverter PCB Models FDCVA402HENR, 502HENR, 602HENR JSW10 Match to the PCB conditions that existed before replacement. JSW11 Match to the PCB conditions that existed before replacement. JSW10 JSW11 CNI4 Notes (1) Apply the silicone grease supplied with the component uniformly to the surface of the power transistor on the new PCB, then mount it on the PCB. If the grease is not applied, the power transistor may be damaged.
Page 182 Error display [Communications error during operation] Indoor unit Outdoor unit 2 time flash Red LED 2 time flash Red LED Keeps flashing Green LED Keeps flashing Green LED Is the connection Did the remote Is the connection Reset power “ WAIT ”...
Page 183 Error display : [Cooling overload operation] Indoor unit Outdoor unit 1 time flash Red LED Stays OFF Red LED Green LED Keeps flashing Green LED Keeps flashing Check the unit side. Are the • Is there a short circuit in the outdoor unit? characteristics of Is there cooling overload •...
Page 184 Error display : [Discharge temperature error] Indoor unit Outdoor unit 1 time flash Red LED Stays OFF Red LED Keeps flashing Green LED Keeps flashing Green LED Is the Discharge Check the unit side. Check the unit side. discharge pipe ther- temperature error? •...
Page 185 Error display : [Defective outdoor unit heat exchanger thermistor] Indoor unit Outdoor unit 1 time flash Red LED Stays OFF Red LED Keeps flashing Green LED Keeps flashing Green LED Defective outdoor unit control Is the outdoor Are the outdoor unit Replacement (Defective unit heat exchanger heat exchanger thermistor...
Page 186 Error display : [Defective discharge pipe thermistor] Indoor unit Outdoor unit 1 time flash Red LED Stays OFF Red LED Keeps flashing Green LED Keeps flashing Green LED Defective outdoor unit control Is the discharge Are the discharge Replacement (Defective pipe thermistor pipe thermistor characteristics discharge pipe thermistor...
Page 187 Error display : [Power transistor is overheating] Indoor unit Outdoor unit 1 time flash Red LED Stays OFF Red LED Keeps flashing Green LED Keeps flashing Green LED If the compressor stopped Disconnect the outdoor unit’s Doesn’t turn. Replace the outdoor The compressor turns.
Page 188 Error display : [Current cut] Indoor unit Outdoor unit 1 time flash Red LED Stays OFF Red LED Keeps flashing Green LED Keeps flashing Green LED Check the Is the high Is the power Is the service compressor's insulation pressure during operation supply voltage valve fully open? resistance and winding...
Page 189 Error display : [DC Fan motor abnormal] Indoor unit Outdoor unit 1 time flash Red LED Stays OFF Red LED Keeps flashing Green LED Keeps flashing Green LED Is any Replace the foreign foreign object weded into object. the rotaingparts of the fan motor? Turn the fan by hand several...
Page 190 Indoor unit Outdoor unit 1 time flash Red LED Stays OFF Red LED Keeps flashing Green LED Keeps flashing Green LED Is the service Open it fully. valve fully open? Are the low pressure sensor – suction pipe Correction temperature thermistor connector connections OK? Are the low pressure sensor –...
Page 191 Error display : [Defective suction pipe temperature thermistor] Indoor unit Outdoor unit 1 time flash Red LED Stays OFF Red LED Keeps flashing Green LED Keeps flashing Green LED Are the Is the Defective outdoor unit PCB suction pipe suction pipe Replacement (Defective suction thermistor characteristics thermistor connector...
Page 192 Error display : [Under-dome temperature thermistor is faulty] (Only case of 802, 1002 type) Indoor unit Outdoor unit The outdoor unit control PCB is faulty Replace (The under-dome 1 time flash Red LED Stays OFF Red LED temperature thermistor input circuit Keeps flashing Green LED Keeps flashing...
Page 193 Error display : [Compressor loader position detection error] Indoor unit Outdoor unit 1 time flash Red LED Stays OFF Red LED Green LED Keeps flashing Note (1) Check if the power supply system is normal. Again Does it It doesn’t Does the doesn’t.
Page 194 Power transistor module (including drive circuit) check method Is the power transistor module cracked or burnt? Is there a short circuit between the power transistor module terminals? 1 Compressor operation Is the balance between the compressor current phases good? If there is a 10% or greater difference in the current in different phases.
Page 195: Check Method In The Case Of The Failure Display In The Remote Controller
(5) Check method in the case of the failure display in the wired remote controller (a) Louver motor does not operate Inspect at the indoor unit side. Does the Is LM wire Is LM wire Defective indoor louver operate at broken? locked? unit PCB...
Page 196: Check Abnormal Operation Data With The Wired Remote Controller
(6) Check abnormal operation data with the wired remote controller Operation data are recorded when there is an abnormal state and these data can be displayed in the remote controller by operating the remote controller buttons. (1) Press the CHECK button. FUNCTION”...
Page 197: Check Display On Wireless Specification Models (Fden ·Fkdn ·Fdt)
1.6.4 Check display on wireless specification models (FDEN · FDKN· FDT) (1) Indication board (a) FDEN Series Romote controller signal receiving part Backup switch TIMER CHECK Operation display light (Green) • Lights continuously: Under air conditioner operaton • Keeps flashing: Under heating preparation (At the time of heating operation) •...
Page 198 2. MULTI-TYPE (V MULTI) PACKAGED AIR-CONDITIONER CONTENTS 2.1 GENERAL INFORMATION................199 2.1.1 Specific features ..................199 2.1.2 How to read the model name ..............199 2.1.3 Table of models ..................200 2.1.4 Table of system combinations ..............200 2.2 SELECTION DATA ..................201 2.2.1 Specifications ...................
Page 199 2.2.9 Noise level ....................244 (1) Indoor unit ....................244 (2) Outdoor unit ....................247 2.3 ELECTRICAL DATA ..................248 2.3.1 Electrical wiring ..................248 (1) Indoor unit ....................248 (2) Outdoor unit ....................253 2.4 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER ....255 2.5 APPLICATION DATA ..................
Page 200: General Information
GENERAL INFORMATION 2.1.1 Specific features Ideal for the installation conditions characteristic of larger rooms and L-shaped or other non-standard-shaped rooms, the Multi-Type V series allows an extensive degree of flexibility in the selection of indoor units. Specifically, the selection of indoor units with differing capacities and differing or similar types is supported, as is the selection of indoor units with similar capacities and differing types.
Page 201: Table Of Models
2.1.3 Table of models Capacity Model Ceiling recessed type (FDT) Ceiling suspended type (FDEN) Wall mounted type (FDKN) Ceiling mounted duct type (FDUR) FDCVA402HENR FDCVA502HENR FDCVA602HENR FDCVA802HESR FDCVA1002HESR Outdoor unit to be combined (FDC) (4 Horse Power) (5 Horse Power) (6 Horse Power) (8 Horse Power) (10 Horse Power)
Page 202: Selection Data
SELECTION DATA 2.2.1 Specifications (1) Indoor unit (a) Ceiling recessed type (FDT) Models FDTA151R, 201R, 251R Model FDTA151R FDTA201R FDTA251R Item ( 1) Nominal cooling capacity ( 1) Nominal heating capacity Power source 1 Phase, 220/230V 50Hz Powerful mode Hi: 36 Me : 33 Lo: 32 Powerful mode Hi: 38 Me : 35 Lo: 33 Noise level dB(A)
Page 203 Models FDTA301R, 401R Model FDTA301R FDTA401R Item ( 1) Nominal cooling capacity 10.0 ( 1) Nominal heating capacity 11.2 Power source 1 Phase, 220/230/240V 50Hz Powerful mode Hi: 38 Me: 35 Lo: 33 Powerful mode Hi: 46 Me: 43 Lo: 41 Noise level dB(A) Mild mode Hi: 35 Me: 33 Lo: 31...
Page 204 Model FDTA501R Model FDTA501R Item ( 1) Nominal cooling capacity 12.5 ( 1) Nominal heating capacity 14.0 Power source 1 Phase, 220/230/240V 50Hz Powerful mode Hi: 48 Me: 45 Lo: 43 Noise level dB(A) Mild mode Hi: 45 Me: 43 Lo: 40 Exterior dimensions Unit:365 Height...
Page 205: (B) Ceiling Suspended Type (Fden)
(b) Ceiling suspended type (FDEN) Models FDENA151R, 201R, 251R Model FDENA151R FDENA201R FDENA251R Item ( 1) Nominal cooling capacity ( 1) Nominal heating capacity Power source 1 Phase, 220/230/240V 50Hz Powerful mode Hi: 42 Me : 39 Lo: 38 Powerful mode Hi: 44 Me : 41 Lo: 39 Noise level dB(A) Mild mode Hi: 39 Me : 38 Lo: 37...
Page 206 Models FDENA301R, 401R Model FDENA301R FDENA401R Item ( 1) Nominal cooling capacity 10.0 ( 1) Nominal heating capacity 11.2 Power source 1 Phase, 220/230/240V 50Hz Powerful mode Hi: 44 Me: 41 Lo: 39 Powerful mode Hi: 46 Me: 44 Lo: 41 Noise level dB(A) Mild mode Hi: 41 Me: 39 Lo: 38...
Page 207 Model FDENA501R Model FDENA501R Item ( 1) Nominal cooling capacity 12.5 ( 1) Nominal heating capacity 14.0 Power source 1 Phase, 220/230/240V Powerful mode Hi: 48 Me: 46 Lo: 44 Noise level dB(A) Mild mode Hi: 46 Me: 44 Lo: 43 Exterior dimensions 1620 Height...
Page 208: (C) Wall Mounted Type (Fdkn)
(c) Wall mounted type (FDKN) Models FDKNA151R, 201R Model FDKNA151R FDKNA201R Item ( 1) Nominal cooling capacity ( 1) Nominal heating capacity Power source 1 Phase, 220/230/240V 50Hz Powerful mode Hi: 44 Me: 42 Lo: 40 Powerful mode Hi: 47 Me: 44 Lo: 41 Noise level dB(A) Mild mode Hi: 42 Me: 40 Lo: 37...
Page 209 Model FDKNA251R Model FDKNA251R Item ( 1) Nominal cooling capacity ( 1) Nominal heating capacity Power source 1 Phase, 220/230/240V 50Hz Powerful mode Hi: 48 Me: 45 Lo: 42 Noise level dB(A) Mild mode Hi: 45 Me: 42 Lo: 39 Exterior dimensions Height Width...
Page 210: (D) Ceiling Mounted Duct Type (Fdur)
(d) Ceiling mounted duct type (FDUR) Models FDURA201R, 251R Model FDURA201R FDURA251R Item ( 1) Nominal cooling capacity ( 1) Nominal heating capacity Power source 1 Phase 220/230/240V 50Hz Noise level dB(A) Hi: 40 Lo: 36 Hi: 41 Lo: 37 Exterior dimensions Height Width...
Page 211 Models FDURA301R, 401R Model FDURA301R FDURA401R Item ( 1) Nominal cooling capacity 10.0 ( 1) Nominal heating capacity 11.2 Power source 1 Phase, 220/230/240V 50Hz Noise level dB(A) Hi: 41 Lo: 37 Hi: 42 Lo: 37 Exterior dimensions 1370 Height Width Depth Net weight...
Page 212 Model FDURA501R Model FDURA501R Item ( 1) Nominal cooling capacity 12.5 ( 1) Nominal heating capacity 14.0 Power source 1 Phase, 220/230/240V 50Hz Noise level dB(A) Hi: 43 Lo: 38 Exterior dimensions 1370 Height Width Depth Net weight Refrigerant equipment Louver fin &...
Page 213: Outdoor Unit
(2) Outdoor unit Models FDCVA402HENR Model FDCVA402HENR Item Power source 1 Phase, 220/230/240V 50Hz ( 1) Nominal cooling capacity 10.0 [6.1~11.2] ( 1) Nominal heating capacity 11.2 [5.6~12.5] Noise level dB(A) Exterior dimensions Height Width Depth Net weight Refrigerant equipment RM-B5125MD11 1 compressor type &...
Page 214 Models FDCVA502HENR, 602HENR Model FDCVA502HENR FDCVA602HENR Item Power source 1 Phase, 220/230/240V 50Hz ( 1) Nominal cooling capacity 12.5 [6.5~14.0] 14.0 [6.7~14.8] ( 1) Nominal heating capacity 14.0 [6.2~16.0] 16.0 [6.3~16.8] Noise level dB(A) Exterior dimensions Height Width Depth Net weight Refrigerant equipment RM-B5125MD11 compressor type &...
Page 215 Model FDCVA802HESR, 1002HESR Model FDCVA802HESR FDCVA1002HESR Item Power source 3 Phase, 380/400/415V 50Hz ( 1) Nominal cooling capacity 20.0 [7.0~22.4] 25.0 [10.6~28.0] ( 1) Nominal heating capacity 22.4 [7.6~25.0] 28.0 [9.5~31.5] Noise level dB(A) Cooling: 57, Heating: 58 Exterior dimensions 1300 1505 Height...
Page 216: Operation Chart
(3) Operation chart The Multi-Type V series is a system that allows for different models and capacities of indoor units to be connected so the individual operating characteristics of the indoor and outdoor are provided. Use the procedure shown in Item (c) to calculate the combined operating characteristics.
Page 217 (c) Calculation of total operation characteristics Since the operation characteristics of series Multi depend on combination of indoor unit, calculate the total operation charac- teristics of the system by using the formulas below according to specifications of each indoor unit or outdoor unit. 1) 1 Phase models a) Total power consumption Total power consumption (kW) = Power consumption of outdoor unit + ∑...
Page 218 2) 3 Phase models a) Total power consumption Total power consumption (kW) = Power consumption of outdoor unit + ∑ (Power consumption of indoor unit) b) Total running current Total running current (A) = Running current of outdoor unit + [∑ (Running current of indoor unit) × 1/3] c) Total power factor —...
Page 219: Range Of Usage & Limitations
2.2.2 Range of usage & limitations Model FDCVA402~602 series FDCVA802, 1002 series Item Indoor return air temperature (Upper, lower limits) Refer to the selection chart (See page 242) Outdoor air temperature (Upper, lower limits) Indoor unit atmosphere (behind ceiling) Dew point temperature: 28˚C or less, relative humidity: 80% or less temperature and humidity Max.
Page 220 Height and length restrictions for refrigerant piping FDCVA402, 502, 602 One-way pipe length (m) L +ra +rb Twin type 10, ra 20, rb Branch pipe length (m) Ira –rbI Outdoor unit Indoor unit Difference in height between indoor units (m) h=0.5 or less FDCVA802, 1002 One-way pipe length (m) L +ra 70, L +rb...
Page 221: Exterior Dimensions
2.2.3 Exterior dimensions (1) Indoor unit unit : mm (a) Ceiling recessed type (FDT) Models FDTA151R, 201R, 251R Decorative Panel Outside air (Ceiling hole size) 860~890 opening for (Suspension bolts pitch) ducting Control box Exhaust air opening for ducting Liquid piping Air supply Air return grille ø6.35(1/4")
Page 222 Model FDTA301R unit : mm Decorative Panel Outside air (Ceiling hole size) 860~890 opening for (Suspension bolts pitch) ducting Control box Exhaust air opening for ducting Liquid piping Air supply Air return grille ø9.52(3/8") VIEW A Gas piping Drain hose piece ø15.88(5/8") (Accessory) (Installed at site)
Page 223 Model FDTA401R unit : mm Decorative Panel Outside air (Ceiling hole size) 860~890 opening for (Suspension bolts pitch) ducting Control box Exhaust air opening for ducting Liquid piping ø9.52 (3/8") Air supply Air return grille Gas piping VIEW A ø15.88 (5/8") Drain hose piece (Accessory) (Installed at site)
Page 224 Model FDTA501R unit : mm Decorative Panel Outside air (Ceiling hole size) 860~890 opening for (Suspension bolts pitch) ducting Control box Exhaust air opening for ducting Liquid piping ø9.52 (3/8") Air supply Air return grille Gas piping VIEW A ø15.88 (5/8") Drain hose piece (Accessory) (Installed at site)
Page 225 (b) Ceiling suspended type (FDEN) Models FDENA151R, 201R 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 hose piece connection(1) 1070 (VP20) Air supply Indication board Note(1) The slope of drain piping inside the unit is able to take incline of 10mm.
Page 226 Models FDENA401R, 501R 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 hose piece connection(1) 1620 (VP20) Air supply Indication board Note(1) The slope of drain piping inside the unit is able to take incline of 10mm.
Page 227 Model FDKNA251R Unit : mm Installation position diagram and installation space, from the front. Service Mounting plate Unit space Service 4-12 18 space 5073.5 73.5 long hole 207.5 182.5 14.5 3 60 63.5 Hole on wall for rear connection 387.5 53.5 (ø65) 457.5...
Page 228 (d) Ceiling mounted duct type (FDUR) Models FDURA201R, 251R Unit : mm (Low of suspension lug) (Dimension for duct) Control box Suspension bolts (M10 4pcs) Air return duct 886 (Suspension bolts pitch) 850 (Dimension for duct) Liquid piping ø6.35 (1/4”) Air supply duct Gas piping 201:ø12.7 (1/2”)
Page 229 Model FDURA301R Unit : mm (Low of suspension lug) (Dimension for duct) Control box Suspension bolts (M10 4pcs) Air return duct 886 (Suspension bolts pitch) 850 (Dimension for duct) Liquid piping ø9.52 (3/8”) Air supply duct Gas piping ø15.88 (5/8”) Drain (Connectable with VP25) Drain (Gravity drainage, VP20)
Page 230 Models FDURA401R, 501R Unit : mm (Dimension for duct) (Low of suspension lug) Control box Air return duct Suspension bolts (M10 4pcs) 1406 (Suspension bolts pitch) 1370 (Dimension for duct) Liquid piping ø9.52 (3/8”) Air supply duct Gas piping ø15.88 (8/5”) Drain (Connectable with VP25) Drain (Gravity drainage, VP20)
Page 231: Remote Controller (Optional Parts)
(2) Remote controller (Optional parts) (a) Wired remote controller Unit : mm Installation with wiring exposed Installation with wiring recessed Wall 0.3mm , 3cores (O.D.ø5.6) Wire (Recessed) LCD display Electrical box (Locally Purchased) Remote controller mounting dimensions Cut off with a knife or the like thin walled parts intend- Remote controller ed for screw holes, and then...
Page 232 (b) Wireless remote controller Unit: mm...
Page 233: Outdoor Unit
(3) Outdoor unit Models FDCVA402HENR, 502HENR, 602HENR Unit : mm Gas piping: ø15.88(5/8") Liquid piping: ø9.52(3/8") (Flare connecting) (Flare connecting) Terminal block Liquid piping: ø9.52(3/8") (Flare connecting) Gas piping: ø15.88(5/8") (Flare connecting) Opening for electic wring Opening for Opening for piping piping and and electic wring electic wring...
Page 234 Model FDCVA802HESR Unit : mm Liquid piping: ø9.52(3/8") (Flare connecting) Gas piping: ø25.4(1") (Brazing connecting) Terminal block Liquid piping: ø9.52(3/8") (Flare connecting) Gas piping: ø25.4(1") (Brazing connecting) Opening for Opening for electic wring electic wring Opening for Opening for piping piping and and electic wring electic wring...
Page 235 Unit : mm Model FDCVA1002HESR Liquid piping: ø12.7(1/2") (Flare connecting) Gas piping: ø25.4(1") (Brazing connecting) Terminal block Liquid piping: ø12.7(1/2") (Flare connecting) Gas piping: ø25.4(1") (Brazing connecting) Opening for Opening for electic wring electic wring Opening for Opening for piping piping and and electic wring electic wring...
Page 236: Inside View
2.2.4 Inside view Models FDCVA402HENR, 502HENR, 602HENR Control box High pressure switch 63H1 Electronic expansion valve (SM1) Electronic expansion valve (SM2) Compressor Service valve Lower pressure sensor (Liquid side) Service valve (LPT) (Gas side) Model FDCVA802HESR Control box High pressure switch 63H1 Lower pressure sensor (LPT)
Page 237 Model FDCVA1002HESR Control box High pressure switch 63H1 Lower pressure sensor (LPT) Electronic expansion valve (SM1) Service valve (Liquid side) Service valve (Gas side) Electronic expansion valve (SM2) Compressor Solenoid valve (SV2)
Page 238: Exterior Appearance
2.2.5 Exterior appearance (1) Indoor unit (a) Ceiling recessed type (FDT) Plaster white (b) Ceiling suspended type (FDEN) Light gray Light gray (Vertical louver) Plaster white Plaster white (Horizontal louver) (Side panel) (Front panel) Plaster white (Front panel) Plaster white (Air return grille) (c) Wall mounted type (FDKN) Cool white...
Page 239 (2) Outdoor unit Models FDCVA402, 502, 602HENR Model FDCVA802HESR Polar white Polar white Model FDCVA1002HESR Polar white...
Page 240: Piping System
2.2.6 Piping system (1) Twin type Models FDCVA402HENR, 502HENR, 602HENR Gas branch pipe 201: ø12.7 251, 301: ø15.88 Indoor unit Indoor unit Outdoor unit Cooling cycle Heating cycle Check joint 4way valve Thermistor Gas line (ø15.88) Service valve Flare connecting Check joint (Flare connecting) Heat exchanger...
Page 241 (2) Triple type Model FDCVA602HENR Gas branch pipe (ø12.7) Cooling cycle Heating cycle Indoor unit Indoor unit Indoor unit Outdoor unit Check joint 4way valve Thermistor Gas line (ø15.88) Flare connecting Service valve Check joint (Flare connecting) Heat exchanger Heat exchanger High pressure Check switch...
Page 242 (3) Double twin type Models FDCVA802HESR, 1002HESR 2nd branch pipe of gas (ø15.88) Outdoor unit Cooling cycle Heating cycle 1st branch Indoor unit Indoor unit Check joint pipe of gas 4way valve Thermistor Gas line (ø15.88) (ø25.4) Muff Service valve (Flare connecting) Branch pipe Check joint...
Page 243: Selection Chart
Preset point of the protective devices Equipped Parts name Mark FDCVA402, 502, 602 models FDCVA802, 1002 models unit Thermistor ON 63˚C (for protection over- OFF 56˚C loading in heating) Indoor unit ON 1.0˚C Thermistor (for frost prevention) OFF 10˚C Thermistor ON 115˚C ON 135˚C (for detecting dis-...
Page 244: Characteristics Of Fan
2.2.8 Characteristics of fan (1) Ceiling mounted duct type (FDUR) Model FDURA201R Model FDURA251R & Standard Standard pressure pressure " & 13 12 14 Lower Lower Upper Upper Standard Standard limit limit limit limit air flow air flow Air flow(m /min) Air flow(m /min)
Page 245: Noise Level
Model FDUR501R Standard pressure 33.5 35.5 37.5 39.5 41.5 43.5 45.5 47.5 49.5 Lower limit Upper Standard limit air flow Air flow(m /min) 2.2.9 Noise level Notes (1) The data are based on the following conditions. Ambient air temperature: Indoor unit 27˚C DB, 19˚C WB. Outdoor unit 35˚C DB. Notes (2) The data in the chart are measured in an unechonic room.
Page 246 Model FDTA401R Model FDTA501R Noise level 46 dB (A) at HIGH Noise level 48 dB (A) at HIGH 43 dB (A) at MEDIUM 45 dB (A) at MEDIUM 41 dB (A) at LOW 43 dB (A) at LOW 1000 2000 4000 8000 1000...
Page 247 (c) Wall mounted type (FDKN) Unit Measured based on JIS B 8616 Mike position as right Mike (Center & Low points) Model FDKNA151R Model FDKNA201R Model FDKNA251R Noise level 44 dB (A) at HIGH Noise level 47 dB (A) at HIGH Noise level 48 dB (A) at HIGH 42 dB (A) at MEDIUM 44 dB (A) at MEDIUM...
Page 248: Outdoor Unit
(2) Outdoor unit Measured based on JIS B 8616 Mike position: at highest noise level in position as below Distance from front side 1m Height Model FDCV402HENR Model FDCV502HENR Model FDCVA602HENR Noise level 50 dB (A) Noise level 52 dB (A) Noise level 53 dB (A) 1000 2000...
Page 256: Outline Of Operation Control By Microcomputer
OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER Details are the same as in chapter 1. see page 92. 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...
Page 257: Installation Of Indoor Unit
2.5.1 Installation of indoor unit (1) Ceiling recessed type (FDT) (a) Selection of installation location Model Space above ceiling (h) 1) Select location where the space above ceiling is larger than those mentioned FDT151R, 201R, 251R, 301R Over 290mm right side and perfect draining can be assured. FDT401R Over 315mm FDT501R...
Page 258 (c) Suspension ● Please arrange four sets of a suspension bolt (M10 or M8), a nut matching the bolt, a flat washers and a spring washer on the installation site. When suspension from the ceiling 1) In the case of the standard series: Cut and opening of ▫ 860 ~ ▫ 890. In cutting an operating on the ceiling, use the unit’s cardboard container for shipment as a reference of the size of opening.
Page 259 b) Give the drain piping a descending grade (1/50-1/100) and never Suspension 1.5 m ~ 2 m bolts create a bump to go over or a trap. c) In connecting drain pipes, care must be taken so as not to apply force to the unit side piping and fix the pipe at a point as close to the unit as Insulation Desceding slope...
Page 260 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 261 4) Removing the air return grille 1 Raise up the notched portion of the air return grille and open it. 2 With the air return grille open, remove the air return grille hinge from the decorator panel. 5) Removing the corner panel •...
Page 262 4 Connect the (white, 5p) louver motor con- nector. 5 Place each of the connectors inside the con- trol box. Note (1) : If the air supply louver does not operate us- ing the remote controller, check the connector’s connection, then turn the main power supply OFF for 10 seconds or longer and turn the power ON again.
Page 263: Ceiling Suspended Type (Fden)
8) Corner panel installation 1 Hook the corner panel strap to the pin on the decorator panel as shown in the figure. 2 Insert part a on the corner panel in part A on the decorator panel, then fit the 2 claws and fasten the corner panel screw.
Page 264 6) This unit uses a microcomputer as a control device. Therefore avoid installing the unit near the equipment that generates strong electromagnetic waves and noise. (b) Wireless remote control unit operation distance. 1) Standard signal receiving range. [Condition] Illuminance at the recelver area: 360 lux. (When no llghting fixture is located with in 1 m of indoor unit in an ordinary office) (Top view) Ceiling sur face...
Page 265 3) Remove the suspension lug. Take out the screws, then loosen the installation bolt. Suspension lug screws (M4) Loosening Indoor unit margin 8~12 mm Suspension Lug for suspension lug mounting bolt (M8) 4) Suspension bolt position Lug for suspension a) Using the paper pattern supplied as an accessory as a criterion, select suspension bolt positions and piping hole positions, then install the suspension bolts and Paper...
Page 266 3) In order to make it easier for water to drain out, install the unit so that the water drain side slopes downward. ● Front-rear direction ● Left-right direction (The figure shows the case where the drain hose is on the right side.) (If the connection is on the left side, reverse the slope.) If the slope is reversed, there is danger of water leaking out.
Page 267: Wall Mounted Type (Fdkn)
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. Drain hose Drain hose Hose Clamp...
Page 268 Relation between illumination at receiver Caution item for close installation of unit and operating distance multiple units (Top view) (Top view) Receivable range Receivable range 60° 60° 60° [Condition] Illumination at suction grill face 800 lux 2) Cautions for operation a) Orient the remote control switch properly toward the receiver of the unit.
Page 269 2) Cautions for left take-out and rear take-out case b) The piping can be taken out from the a) Looking down rear, left, left rear, right and down. For left running horizontal piping For right running horizontal piping For left rear take-out piping For right rear take-out piping Right For left running horizontal piping...
Page 270: Ceiling Mounted Duct Type (Fdur)
(4) Ceiling mounted duct type (FDUR) (a) 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 271 1) Fixing the suspension bolt (customer ordered parts M10) Securely fix the suspension bolt as illustrated below or in another way. Suspension bolt Hole in anchor bolt M10 nuts Suspension bolt M10 Hole-in plug Insert M10 Washer Indoor unit Indoor unit Concrete Suspension bolt M10 M10 Spring washer...
Page 272 CAUTION ● Taps should not be used under static pressure outside the unit mentioned above. Dew condensation may occur with the unit and wet the ceiling or furniture. ● Do not use under static pressure outside the unit of 50Pa or less. Water drops may be blown from the diffuser outlet of the unit and wet the ceiling or furniture.
Page 273 9) Drainage test a) Conduct a drainage test after completion of the electrical work. b) During the trial, make sure that drain flows properly through the piping and that no water leaks from connections. c) In case of a new building, conduct the test before it is furnished with the ceiling. d) Be sure to conduct this test even when the unit is installed in the heating season.
Page 274 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. 1 Press the TEST button for three seconds or longer. The display will change from “...
Page 275 Bad example of duct work Louver to outdoor air For ventilation 7) 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 276: Installation Of Wired Remote Controller
The length of each wire that should be left after 2.5.2 Installation of wired remote controller a sheath is removed is as follows: (a) Selection of installation location Avoid the following locations ength of the 1) Direct sunlight. section where a sheath is removed 2) Close to heating device.
Page 277: Installation Of Outdoor Unit
2.5.3 Installation of outdoor unit Notabilia as a unit designed for R410A ● Do not use any refrigerant other than R410A. R410A will rise to pressure about 1.6 times higher than that of a conventional refrigerant. ● 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 278 1) Place the unit outlet pipe perpendicular to the wind direction. Over 500 mm 2) Please install so the direction of the air from the blowing outlet will be perpendicular to the direction of the wind. Wind direction Wind direction Wind direction Wind direction 3) When the foundation is not level, use wires to tie down the unit.
Page 279: Refrigerant Pipng Work
(2) Refrigerant piping work Select the piping specification to fit the specification of Indoor unit and installation location. (a) Decision of piping specification Piping specification Height difference Unit : mm ● When the position of outdoor unit is Outdoor unit model Gas pipe Liquid pipe higher than that of the indoor unit, keep...
Page 280 ● The branch piping (both gas and liquid lines) should always be arranged to have a level or perpendicular branch. < 2-Way Branch > Floor Floor Floor Mount sections Mount sections level with the floor. perpendicular to the floor. < 3-Way Branch > Floor Floor Floor...
Page 281 (iii) Double twin type Models FDCVA802, 1002 [Branch pipe set : DIS-WA1 2set, DIS-WB1 1set] Indoor unit DIS-WA1 DIS-WB1 Gas line utdoor unit Liquid line DIS-WA1 Item Liquid pipe Gas pipe Indoor unit combinations Main pipe 1st branch pipe 2st branch pipe Main pipe 1st branch pipe 2st branch pipe Model...
Page 282 (c) Points for attention in installing refrigerant piping 1) Use pipes made of the following material Wires for connecting Material: Phosphorus deoxidized copper seamless pipes (C1220T, JIS indoor and outdoor H3300) units Exterior tape 2) Please dress the refrigerant piping (both gas and liquid pipes) with a heat Gas piping insulating material for prevention of dew condensation.
Page 283: Air Tightness Test And Air Purge
(d) How to remove the service panel 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. Catch Catch Catch Models FDCVA402~602 Model FDCVA802...
Page 284: Additional Refrigerant Charge
Hexagonal wrench type Compound pressure gauge Pressure gauge Hexagonal Head Wrench Gauge manifold -101KPa (-755mmHg) (M4) (for R410A only) Handle Lo Handle Hi Charge hose (for R410A only) Charge hose Open In-unit check joint (for R410A only) Charge valve Liquid/gas operation Gas service valve Vacuum adapter •...
Page 285: Drain Pipng Work
(5) Drain piping work ● Execute drain piping by using a drain elbow and drain grommets supplied separately as optional parts, where water drained from the outdoor unit is a problem. There are 3 drain holes provided on the bottom plate of an outdoor unit to discharge condensed water.
Page 286 Earth leakage breaker Earth leakage breaker Power cable, indoor-outdoor connecting wires (Harmonic resistant type) (Harmonic resistant type) ● Always perform grounding system installation work Switchgear or circuit breaker Switchgear or circuit breaker with the power cord unplugged. Outdoor unit Outdoor unit CAUTION Indoor unit Indoor unit...
Page 287 Remote controller wiring and connection procedure 1) Master-slave settings when using multiple remote controllers ● Up to 2 remote controllers can be connected for each indoor unit (or group). a) There are two methods, one where the remote controller signal line (3-wire) for the slave remote controller is taken from the indoor unit and the other where the signal lines are taken from the master remote controller.
Page 288: Setting Functions Using The Wired Remote Controller
(7) Setting functions using the wired remote controller (a) The default settings of this unit's functions are as follows: If you want to charge a setting, follow the procedure found in the installation manual and set to your desired setting. For the method of setting, please refer to the installation manual of a remote controller unit.
Page 289 (b) Function setting method Operating guide message 1) Stop the air conditioner Function description: B , Settting: C Function number: A 2) Press the SET and MODE buttons simultaneously for 3 seconds or longer. The screen display will be switched as follows: Confirm Button “...
Page 290 When “I/U FUNCTION ” is selected. 1 The screen display will be switched as follows: “ I/U SELECT” “ SET” “I/U No.00” (blinking) I/U No.00 2 Press either button. Select the indoor unit number that you want to change settings. If only one indoor unit is connected, the indoor unit number will not charge, so please proceed to Step 3.
Page 291 (c) Changing the remote control set temperature range 1) It is possible to change the set temperature range using the remote control. a) The upper and lower set temperature limits can be set from the remote control. Upper limit value setting: Effective during heating. The temperature can be set within a range of 20~30ºC. Lower limit value setting: Effective when running in modes other than the heating mode (AUTO, COOL, FAN, DRY): The temperature can be set within a range of 18~26ºC.
Page 292: Checking Operation Data
• If the RESET button is pressed during a setting operation, the display returns to the previously displayed setting screen. However, settings which have not been fixed become invalid, so exercise caution. * If “NO DISP CHANGE” is selected in No. 12, “TEMP RANGE SET” of the remote controller’s functions, of the function setting modes, the remote controller’s display does not change even if the temperature range has been changed.
Page 293: Test Run
Number Data item (Operation mode) SET TEMP RETURN AIR I/U HEAT EXCH 1 (Indoor unit heat exchanger temperature 1) I/U HEAT EXCH 2 (Indoor unit heat exchanger temperature 2) I/U FAN (Indoor unit fan speed) TOTAL I/U RAN (Indoor unit operation hours) OUTDOOR (Outside air temperature) (Outdoor unit heat exchanger temperature 1)
Page 294: Maintenance Data
Failure diagnosis in a test run Error indicated Printed circuit board LED (They cycles of 5 seconds) on the remote Failure event Action RED LED GREEN LED control unit Check power cables for loose contact 1 time flash Keeps flashing Open phase or disconnection 63H1 actuation or operation with...
Page 295 3. WIRELESS KIT (OPTION FOR FDT MODEL ONLY) The FDT series is an exclusive series with all wired models. However, these models can also be used as wireless units by using the optional wireless kit. Model Model FDT series all model Wireless kit model Model Paint color...
Page 296 (4) Wireless remote controller unit: mm (5) Attachment of wireless kit (a) Installation of the receiver 1) Preparation before installation 1 Attachthe cover panel supplied as an accessory onto the indoor unit according to the panel installation. (Refer to 116 page) 2 Remove the air return grille.
Page 297 2 Turn switches provided on the back of the PCB. Switches (SW1-4) provided on the receiver PCB are for setting the following. All switched are set to the ON position for shipment. Default setting Prevention of unintended ON:Normal movement caused by interference. OFF:Remote ON:Master Receiver master/slave setting...
Page 298 (6) Control of a plural number of indoor units with one remote controller (a) Up to 16 indoor units can be connected. Terminal 1 Connect indoor unit’s X , Y and Z terminal block X Y Z swith 3-core connecting wires (remote controller Indoor unit Indoor unit (16)
Page 299 MEMO...
Page 300 PACKAGED AIR-CONDITIONER Air-Conditioning & Refrigeration Systems Headquarters 16-5, 2-chome, Kounan, Minato-ku, Tokyo, 108-8215, Japan Fax : (03) 6716-5926 No.094(1.1A) R...

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Mitsubishi Heavy Industries FDTVA402HEN1R Technical Manual

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