Page 1 Manual No. '06 PAC-T-104 • Collection data PACKAGED AIR-CONDITIONER (Spilit system, Air to air heat pump type) CEILING RECESSED COMPACT TYPE CEILING RECESSED TYPE CEILING SUSPENDED TYPE FDTCVA151HENR FDTVA151HENR FDTA301HENR FDENVA151HENR FDENA301HENR 201HENR 201HENR 301HESR 201HENR 301HESR 251HENR 401HENR 251HENR...
Page 2 TABLE OF CONTENTS 1. PACKAGED AIR-CONDITIONER ..................2 2. MULTI-TYPE (V MULTI) PACKAGED AIR-CONDITIONER ..........177 3. WIRELESS KIT (OPTION FOR FDT MODEL ONLY) ............228...
Page 3: Table Of Contents
1. PACKAGED AIR-CONDITIONER CONTENTS 1.1 GENERAL INFORMATION................4 1.1.1 Specific features ..................4 1.1.2 How to read the model name ............... 4 1.2 SELECTION DATA ................... 5 1.2.1 Specifications ....................5 (1) Ceiling recessed compact type (FDTC) ............5 (2) Ceiling recessed type (FDT) ................. 7 (3) Ceiling suspended type (FDEN) ..............
Page 4 (3) Operation control function by the wired remote controller ......88 (4) Operation control function by the outdoor unit controller ......89 1.5 APPLICATION DATA ..................98 1.5.1 Installation of indoor unit ................99 (1) Ceiling recessed compact type (FDTC) ............99 (2) Ceiling recessed type (FDT) ..............
Page 5: 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 6: Selection Data
SELECTION DATA 1.2.1 Specifications (1) Ceiling recessed compact type (FDTC) Model FDTCVA151HENR FDTCVA151HENR Model Item FDTCA151R FDCVA151HENR Nominal cooling capacity 4.0 [1.8~4.7] Nominal heating capacity 4.5 [2.0~5.4] Power source 1 Phase, 220/230/240V 50Hz Cooling power consumption 2.90/2.96 1.15 [0.40~1.47] Running current (Cooling) 5.1/5.5...
Page 7 Model FDTCVA201HENR FDTCVA201HENR Model Item FDTCA201R FDCVA201HENR Nominal cooling capacity 5.0 [2.2~5.6] Nominal heating capacity 5.4 [2.5~6.3] Power source 1 Phase, 220/230/240V 50Hz 1.62 [0.54~2.10] Cooling power consumption 2.90/2.96 7.1 [2.4~9.4] Running current (Cooling) 5.1/5.5 Power factor (Cooling) 86/75 1.53 [0.57~1.96] Heating power consumption 2.54/2.60 6.7 [2.6~8.6]...
Page 8: Ceiling Recessed Type (Fdt)
(2) Ceiling recessed type (FDT) Model FDTVA151HENR FDTVA151HENR Model Item FDTA151R FDCVA151HENR Nominal cooling capacity 4.0 [1.8~4.7] 4.5 [2.0~5.4] Nominal heating capacity Power source 1 Phase, 220/230/240V 50Hz Cooling power consumption 2.90/2.96 1.22 [0.35~1.55] Running current (Cooling) 5.1/5.5 5.4 [1.6~6.9] Power factor (Cooling) 86/75 Heating power consumption...
Page 9 Model FDTVA201HENR FDTVA201HENR Model Item FDTA201R FDCVA201HENR Nominal cooling capacity 5.0 [2.2~5.6] Nominal heating capacity 5.4 [2.5~6.3] Power source 1 Phase, 220/230/240V 50Hz 1.42 [0.42~1.66] Cooling power consumption 2.90/2.96 6.3 [1.9~7.4] Running current (Cooling) 5.1/5.5 Power factor (Cooling) 86/75 1.49 [0.50~1.87] Heating power consumption 2.54/2.60 6.6 [2.2~8.3]...
Page 10 Model FDTVA251HENR FDTVA251HENR Model Item FDTA251R FDCVA251HENR 5.6 [2.8~6.3] Nominal cooling capacity 6.7 [3.1~7.1] Nominal heating capacity Power source 1 Phase, 220/230/240V 50Hz 1.64 [0.54~1.90] Cooling power consumption 2.90/2.96 7.3 [2.4~8.4] Running current (Cooling) 5.15.5 Power factor (Cooling) 1.78 [0.57~1.93] Heating power consumption 2.54/2.60 7.9 [2.5~8.6]...
Page 11 Model FDTA301HENR FDTA301HENR Model Item FDTA301R FDCA301HENR Nominal cooling capacity Nominal heating capacity Power source 1 Phase, 220/230/240V 50Hz Cooling power consumption 2.17 Running current (Cooling) 10.0 Power factor (Cooling) Heating power consumption 2.10 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:38 Me:35 Lo:33 Noise level...
Page 12 Model FDTA301HESR FDTA301HESR Model Item FDTA301R FDCA301HESR Nominal cooling capacity Nominal heating capacity Power source 3 Phase, 380/400/415V 50Hz Cooling power consumption 2.17 Running current (Cooling) Power factor (Cooling) 2.10 Heating power consumption Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:38 Me:35 Lo:33 Noise level dB(A)
Page 13 Model FDTA401HENR FDTA401HENR Model Item FDTA401R FDCA401HENR Nominal cooling capacity 10.0 Nominal heating capacity 11.2 Power source 1 Phase, 220/230/240V 50Hz Cooling power consumption 3.55 16.4 Running current (Cooling) Power factor (Cooling) 3.49 Heating power consumption Running current (Heating) 15.7 Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:46 Me:43 Lo:41...
Page 14 Model FDTA401HESR FDTA401HESR Model Item FDTA401R FDCA401HESR Nominal cooling capacity 10.0 Nominal heating capacity 11.2 Power source 3 Phase, 380/400/415V 50Hz Cooling power consumption 3.48 Running current (Cooling) Power factor (Cooling) Heating power consumption 3.42 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:46 Me:43 Lo:41 Noise level...
Page 15 Model FDTA501HESR FDTA501HESR Model Item FDTA501R FDCA501HESR Nominal cooling capacity 12.5 Nominal heating capacity 13.6 Power source 3 Phase, 380/400/415V 50Hz Cooling power consumption 4.30 Running current (Cooling) Power factor (Cooling) 3.77 Heating power consumption Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:48 Me:45 Lo:43 Noise level...
Page 16 Model FDTA601HESR FDTA601HESR Model Item FDTA601R FDCA601HESR Nominal cooling capacity 14.3 Nominal heating capacity 16.2 Power source 3 Phase, 380/400/415V 50Hz Cooling power consumption 4.33 Running current (Cooling) Power factor (Cooling) Heating power consumption 5.05 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:48 Me:45 Lo:43 Noise level...
Page 17: Ceiling Suspended Type (Fden)
(3) Ceiling suspended type (FDEN) Model FDENVA151HENR FDENVA151HENR Model Item FDENA151R FDCVA151HENR 3.8 [1.8~4.7] Nominal cooling capacity 4.5 [2.0~5.4] Nominal heating capacity Power source 1 Phase, 220/230/240V 50Hz 1.18 [0.40~1.66] Cooling power consumption 5.3 [1.8~7.3] Running current (Cooling) Power factor (Cooling) Heating power consumption 1.32 [0.42~1.76] 5.9 [1.9~7.8]...
Page 18 Model FDENVA201HENR FDENVA201HENR Model Item FDENA201R FDCVA201HENR 5.0 [2.2~5.6] Nominal cooling capacity 5.4 [2.5~6.3] Nominal heating capacity Power source 1 Phase, 220/230/240V 50Hz Cooling power consumption 1.54 [0.47~1.82] Running current (Cooling) 6.9 [2.1~8.1] Power factor (Cooling) Heating power consumption 1.57 [0.52~1.96] Running current (Heating) 7.0 [2.3~8.7] Power factor (Heating)
Page 19 Model FDENVA251HENR FDENVA251HENR Model Item FDENA251R FDCVA251HENR 5.6 [2.8~6.3] Nominal cooling capacity 6.7 [3.1~7.1] Nominal heating capacity Power source 1 Phase, 220/230/240V 50Hz Cooling power consumption 1.74 [0.55~2.01] Running current (Cooling) 7.8 [2.5~8.9] Power factor (Cooling) Heating power consumption 1.87 [0.58~2.03] Running current (Heating) 8.3 [2.6~9.0] Power factor (Heating)
Page 20 Model FDENA301HENR FDENA301HENR-SB Model Item FDENA301R FDCA301HENR Nominal cooling capacity Nominal heating capacity Power source 1 Phase, 220/230/240V 50Hz Cooling power consumption 2.26 Running current (Cooling) 10.3 Power factor (Cooling) Heating power consumption 2.19 Running current (Heating) 10.2 Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:44 Me:41 Lo:39 Noise level...
Page 21 Model FDENA301HESR FDENA301HESR Model Item FDENA301R FDCA301HESR Nominal cooling capacity Nominal heating capacity Power source 3 Phase, 380/400/415V 50Hz Cooling power consumption 2.26 Running current (Cooling) Power factor (Cooling) Heating power consumption 2.19 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:44 Me:41 Lo:39 Noise level dB(A)
Page 22 Model FDENA401HENR FDENA401HENR Model Item FDENA401R FDCA401HENR Nominal cooling capacity 10.0 Nominal heating capacity 11.2 Power source 1 Phase, 220/230/240V 50Hz Cooling power consumption 3.44 15.9 Running current (Cooling) Power factor (Cooling) 3.10 Heating power consumption Running current (Heating) 13.9 Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:46 Me:44 Lo:41...
Page 23 Model FDENA401HESR FDENA401HESR Model Item FDENA401R FDCA401HESR Nominal cooling capacity 10.0 Nominal heating capacity 11.2 Power source 3 Phase, 380/400/415V 50Hz Cooling power consumption 3.32 Running current (Cooling) Power factor (Cooling) Heating power consumption 3.05 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:46 Me:44 Lo:41 Noise level...
Page 24 Model FDENA501HESR FDENA501HESR Model Item FDENA501R FDCA501HESR Nominal cooling capacity 12.6 Nominal heating capacity 13.3 Power source 3 Phase, 380/400/415V 50Hz Cooling power consumption 4.65 Running current (Cooling) Power factor (Cooling) Heating power consumption 3.84 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:48 Me:46 Lo:44 Noise level...
Page 25 Model FDENA601HESR FDENA601HESR Model Item FDENA601R FDCA601HESR Nominal cooling capacity 14.2 Nominal heating capacity 15.9 Power source 3 Phase, 380/400/415V 50Hz Cooling power consumption 4.69 Running current (Cooling) Power factor (Cooling) 4.38 Heating power consumption Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:48 Me:46 Lo:44 Noise level...
Page 26: Wall Mounted Type (Fdkn)
(4) Wall mounted type (FDKN) Model FDKNVA151HENR FDKNVA151HENR Model Item FDKNA151R FDCVA151HENR 4.0 [1.8~4.7] Nominal cooling capacity 4.5 [2.0~5.4] Nominal heating capacity Power source 1 Phase, 220/230/240V, 50Hz Cooling power consumption 1.30 [0.43~1.74] Running current (Cooling) 5.8 [1.9~7.7] Power factor (Cooling) Heating power consumption 1.30 [0.42~1.74] 5.8 [1.9~7.7]...
Page 27 Model FDKNVA201HENR FDKNVA201HENR Model Item FDKNA201R FDCVA201HENR 5.0 [2.2~5.6] Nominal cooling capacity 5.4 [2.5~6.3] Nominal heating capacity Power source 1 Phase, 220/230/240V, 50Hz Cooling power consumption 1.66 [0.53~1.93] Running current (Cooling) 7.4 [2.4~8.6] Power factor (Cooling) 1.58 [0.53~1.98] Heating power consumption 7.1 [2.4~8.8] Running current (Heating) Power factor (Heating)
Page 28 Model FDKNVA251HENR FDKNVA251HENR Model Item FDKNA251R FDCVA251HENR 5.6 [2.8~6.0] Nominal cooling capacity 6.3 [3.1~7.1] Nominal heating capacity Power source 1 Phase, 220/230/240V, 50Hz 1.99 [0.67~2.20] Cooling power consumption 8.9 [3.0~9.8] Running current (Cooling) Power factor (Cooling) 1.85 [0.65~2.15] Heating power consumption 8.2 [2.9~9.5] Running current (Heating) Power factor (Heating)
Page 29: Ceiling Mounted Duct Type (Fdur)
(5) Ceiling mounted duct type (FDUR) Model FDURVA201HENR FDURVA201HENR Model Item FDURA201R FDCVA201HENR 5.0 [2.2~5.6] Nominal cooling capacity 5.4 [2.5~6.3] Nominal heating capacity Power source 1 Phase, 220/230/240V, 50Hz 1.64 [0.58~1.88] Cooling power consumption 7.3 [2.6~8.4] Running current (Cooling) Power factor (Cooling) Heating power consumption 1.58 [0.60~1.96] Running current (Heating)
Page 30 Model FDURVA251HENR FDURVA251HENR Model Item FDURA251R FDCVA251HENR 5.6 [2.8~6.3] Nominal cooling capacity 6.4 [3.1~7.1] Nominal heating capacity Power source 1 Phase, 220/230/240V, 50Hz Cooling power consumption 1.98 [0.69~2.33] Running current (Cooling) 8.8 [3.1~10.3] Power factor (Cooling) Heating power consumption 1.77 [0.68~2.04] Running current (Heating) 7.9 [3.0~9.1] Power factor (Heating)
Page 31 Model FDURA301HENR FDURA301HENR Model Item FDURA301R FDCA301HENR Nominal cooling capacity Nominal heating capacity Power source 1 Phase, 220/230/240V, 50Hz Cooling power consumption 2.38 Running current (Cooling) 11.0 Power factor (Cooling) Heating power consumption 2.21 10.4 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Noise level dB(A)
Page 32 Model FDURA301HESR FDURA301HESR Model Item FDURA301R FDCA301HESR Nominal cooling capacity Nominal heating capacity Power source 3 Phase, 380/400/415V 50Hz Cooling power consumption 2.38 Running current (Cooling) Power factor (Cooling) 2.21 Heating power consumption Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Noise level dB(A) Hi: 41 Lo: 37...
Page 33 Model FDURA401HENR FDURA401HENR Model Item FDURA401R FDCA401HENR Nominal cooling capacity 10.0 Nominal heating capacity 11.2 Power source 1 Phase, 220/230/240V 50Hz Cooling power consumption 3.56 Running current (Cooling) 16.5 Power factor (Cooling) 3.28 Heating power consumptiont 14.7 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Noise level...
Page 34 Model FDURA401HESR FDURA401HESR Model Item FDURA401R FDCA401HESR Nominal cooling capacity 10.0 Nominal heating capacity 11.2 Power source 3 Phase, 380/400/415V 50Hz 3.32 Cooling power consumption Running current (Cooling) Power factor (Cooling) Heating power consumption 3.10 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Noise level dB(A)
Page 35 Model FDURA501HESR FDURA501HESR Model Item FDURA501R FDCA501HESR Nominal cooling capacity 12.5 Nominal heating capacity 13.6 Power source 3 Phase, 380/400/415V 50Hz 4.66 Cooling power consumption Running current (Cooling) Power factor (Cooling) Heating power consumption 3.89 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Noise level dB(A)
Page 36 Model FDURA601HESR FDURA601HESR Model Item FDURA601R FDCA601HESR Nominal cooling capacity 14.4 Nominal heating capacity 16.0 Power source 3 Phase, 380/400/415V 50Hz 4.79 Cooling power consumption Running current (Cooling) Power factor (Cooling) Heating power consumption 4.63 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Noise level dB(A)
Page 37: Range Of Usage & Limitations
1.2.2 Range of usage & limitations Models 151, 201, 251 models 301~601 models Item Indoor return air temperature (Upper, lower limits) Refer to the selection chart (see page 61) 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 38: Exterior Dimensions
1.2.3 Exterior dimensions (1) Indoor unit (a) Ceiling recessed compact type (FDTC) Models FDTCA151R, 201R Unit:mm (Ceiling hole size) ▫ 660 Exhaust air opening for Decorative Panel uspension bolts pitch ducting Air return Control Air supply grille ▫ 4 3 ▫...
Page 39 (b) Ceiling recessed type (FDT) Models FDTA151R, 201R, 251R unit : mm Decorative Panel Outside air (Ceiling hole size) opening for 860~890 (Suspension bolts pitch) ducting Control box Exhaust air opening for ducting Liquid piping ir supply ir return grille ¿6.35(1/4") VIEW A Gas piping...
Page 40 Model FDTA301R unit : mm Decorative Panel Outside air (Ceiling hole size) opening for 860~890 (Suspension bolts pitch) ducting Control box Exhaust air opening for ducting Liquid piping ir supply ir return grille ¿9.52(3/8") VIEW A Gas piping Drain hose piece ¿15.88(5/8") ( ccessory) (Installed at site)
Page 41 Model FDTA401R unit : mm Decorative Panel utside air (Ceiling hole size) 860~890 opening for (Suspension bolts pitch) ducting Control box Exhaust air opening for ducting Liquid piping ¿9.52 (3/8") Air supply Air return grille Gas piping ¿15.88 (5/8") VIEW A Drain hose piece (Accessory) (Installed at site)
Page 42 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 ¿9.52 (3/8") Air supply Air return grille Gas piping ¿15.88 (5/8") VIEW A Drain hose piece (Accessory)
Page 43 (c) Ceiling suspended type (FDEN) Models FDENA151R, 201R Holes for suspension bolts Unit : mm (M8 to M10 4pcs.Not included) (Suspension bolts pitch) × (Suspension bolts pitch) 1022 Liquid piping Gas piping Drain hose piece connection(1) 1070 (VP20) ir supply Indication board Note(1) The slope of drain piping inside the unit is able to take incline of 10mm.
Page 44 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 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 45 Model FDKNA251R Unit : mm Installation position diagram and installation space, from the front. ervice Mounting plate space Unit ervice 4-12 18 space 5073.5 73.5 long hole 207.5 182.5 14.5 3 60 Hole on wall for 63.5 rear connection 387.5 (¿65) 53.5 457.5...
Page 46 (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 ¿6.35 (1/4Ó) Air supply duct Gas piping 01:¿1 .7 (1/ Ó)
Page 47 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 ¿9.5 (3/8Ó) Air supply duct Gas piping ¿15.88 (5/8Ó) Drain (Connectable with VP 5) Drain (Gravity drainage, VP 0)
Page 48 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 ¿9.5 (3/8Ó) Air supply duct Gas piping ¿15.88 (8/5Ó) Drain (Connectable with VP 5)
Page 49: 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 50 (b) Wireless remote controller Unit: mm...
Page 51: Outdoor Unit
(3) Outdoor unit Models FDCVA151HENR, 201HENR Unit: mm 471.5 286.4 Holes for anchor bolt Holes for drain 43.1 (M10×4 pcs.) (ø20×5 pcs.) 17.5 Terminal block 90.6 29.7 Liquid piping: ø6.35 (1/4") (Flare connecting) Gas piping: ø12.7 (1/2") (Flare connecting) Piping, wiring outlet Required space for maintenance and air flow Minimum allowable space to the obstacles Unit:mm...
Page 52 Model FDCVA251HENR Unit: mm 471.5 286.4 Holes for anchor bolt Holes for drain 43.1 (M10×4 pcs.) (ø20×5 pcs.) 17.5 Terminal block 90.6 29.7 Liquid piping: ø6.35 (1/4") (Flare connecting) Gas piping: ø15.88 (5/8") (Flare connecting) Piping, wiring outlet Required space for maintenance and air flow Minimum allowable space to the obstacles Unit:mm Installation...
Page 53 Models FDCA301HENR, 301HESR iquid piping: ¿9.52 (3/8") Unit: mm (Flare connecting) Gas piping: ¿15.88 (5/8") (Flare connecting) iquid piping: ¿9.52 (3/8") (Flare connecting) Terminal block Gas piping: ¿15.88 (5/8") (Flare connecting) Opening for electric wiring Opening for electric wiring Opening for Opening for piping and piping and...
Page 54 Models FDCA401HENR, 401HESR Liquid piping: ¿9.52 (3/8") (Flare connecting) Unit: mm Gas piping: ¿15.88 (5/8") (Flare connecting) Terminal block Liquid piping: ¿9.52 (3/8") (Flare connecting) Gas piping: ¿15.88 (5/8") (Flare connecting) Opening for electric wiring Opening for electric wiring Opening for piping Opening for piping and electric wiring and electric wiring...
Page 55 Model FDCA501HESR Liquid piping: ¿9.52 (3/8") (Flare connecting) Unit: mm Gas piping: ¿15.88 (5/8") (Flare connecting) Terminal block Liquid piping: ¿9.52 (3/8") (Flare connecting) Gas piping: ¿15.88 (5/8") (Flare connecting) Opening for electric wiring Opening for electric wiring Opening for piping and electric wiring Opening for piping and electric wiring...
Page 56 Model FDCA601HESR iquid piping: ¿9.52 (3/8") (Flare connecting) Unit: mm Gas piping: ¿15.88 (5/8") (Flare connecting) Terminal block iquid piping: ¿9.52 (3/8") (Flare connecting) Gas piping: ¿15.88 (5/8") (Flare connecting) Opening for electric wiring Opening for electric wiring Opening for piping and electric wiring Opening for piping and electric wiring...
Page 57: Inside View
1.2.4 Inside view (1) Outdoor unit Models FDCVA151HENR, 201HENR, 251HENR Electronic expansion valve ontrol box 4-way valve Receiver (Heating) Receiver ( ooling) Service valve (Liquid side) Service valve (Gas side) ompressor Models FDCA401HENR, 401HESR Electronic expansion valve ontrol box Accumlator 4-way valve Service valve (Liquid side)
Page 58: Exterior Appearance
1.2.5 Exterior appearance (1) Indoor unit (a) Ceiling recessed compact type (FDTC) laster white (b) Ceiling suspended type (FDT) lastor white (c) Ceiling suspended type (FDEN) Light gray Light gray (Vertical louver) lastor white lastor white (Horizontal louver) (Side panel) (Front panel) lastor white (Front panel)
Page 59 (d) Wall mounted type (FDKN) Cool white (e) Ceiling mounted duct type (FDUR) ....Zinc steel plate (2) Outdoor unit Models FDCVA151HENR, 201HENR, 251HENR Models FDCA301HENR, 301HESR utakko white Polar white Models FDCA401HENR, 401HESR Models FDCA501HESR, 601HESR Polar white Polar white...
Page 60: Piping System
1.2.6 Piping system Models 151, 201, 251 models Indoor unit Outdoor unit Cooling cycle Heating cycle Gas line Check joint Check joint 151, 201:¿12.7 251:¿15.88 Service valve (Flare connecting) Heat exchanger Heat exchanger 4way valve Muffler hermistor hermistor hermistor Discharge Compressor Muffler Suction...
Page 61 Preset point of the protective devices Equipped Parts name Mark 151, 201, 251 models 301, 401, 501, 601 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 105˚C OFF 121˚C...
Page 62: 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) Coefficient of cooling and heating capacity in relation to temperatures Indoor air W.B.
Page 63 Model FDUR type Model FDUR201R FDUR251R FDUR301R FDUR401R FDUR501R, 601R Item 0.111 0.053 0.069 0.106 0.050 Air flow 0.083 0.037 0.049 0.079 0.034 (2) Correction of cooling and heating capacity in relation to air flow rate control (fan speed) Coefficient: 1.00 at High, 0.97 at Middle, 0.95 at Low (3) Correction of cooling and heating capacity in relation to one way length of refrigerant piping It is necessary to correct the cooling and heating capacity in relation to the one way equivalent piping length between the indoor and outdoor units.
Page 64: Characteristics Of Fan
1.2.8 Characteristics of fan (1) Ceiling mounted duct type (FDUR) Model FDURA201R Model FDURA251R Standard Standard pressure pressure 13 12 14 Lower Lower Upper Standard Upper Standard limit limit limit air flow limit air flow Air flow(m /min) Air flow(m /min) Model FDURA301R...
Page 65: Noise Leverl
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 pper 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 66 (b) Ceiling recessed type (FDT) Measured based on JIS B 8616 Mike position as right 1.5m Mike (center & low points) Models FDTA151R, 201R Model FDTA251R Model FDTA301R Noise level 36 dB (A) at HIGH Noise level 38 dB (A) at HIGH Noise level 38 dB (A) at HIGH 33 dB (A) at MEDIUM 35 dB (A) at MEDIUM...
Page 67 Models FDENA501R, 601R Noise level 48 dB (A) at HIGH 46 dB (A) at MEDIUM 44 dB (A) at LOW 1000 2000 4000 8000 Mid Octave Band Frequency (Hz) (d) Wall mounted type (FDKN) Unit Measured based on JIS B 8616 Mike position as right Mike (Center &...
Page 68: 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 80: 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 81: Operation Section
(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 82: Heating Operation
(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 83 (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 84: Weekly Timer
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 85 (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 86 (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 87: Wiring Outline
(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 88 a) At shipping from factory J1 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 Note (1) The ON at the * mark indicates ON CnT Input using the remote control switch, etc.
Page 89: 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 90: Operation Control Function By The Outdoor Unit Controller
(4) Operation control function by the outdoor controller (a) Deciding the compressor speed (FDCVA 151~251 models only) 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 1) Dehumidify and cooling operation Units: rps...
Page 91 3) Compressor protective start 3 3 3 3 3 When the following conditions are satisfied, compressor start III is implemented. a) Less than 6 hours have passed since the power was turned ON, and this is the 1st time the compressor has been started since the power was turned ON.
Page 92 FDCVA251 Compressor speed (rps) less than 46 46 to less than 66 66 to less than 80 80 or more Cooling Outdoor unit fan tap 4th speed (520 rpm) 5th speed (570 rpm) 6th speed (685 rpm) 7th speed (740 rpm) Compressor speed (rps) less than 62 62 to less than 82...
Page 93 2) Outdoor fan tap control during heating The outdoor fan tap is controlled in accordance with the outdoor heat exchanger temperature (sensed by Tho-R) and the outdoor air temperature (sensed by Tho-A). C Zone A-Zone D Zone B-Zone —3 Outdoor heat exchanger temperature (˚C) Outdoor air temperature (˚C) Zone 3) Outdoor fan tap control during heating high pressure control...
Page 94 2) Defrosting start temperature change procedure Turn SW5-1 on the outdoor unit PCB ON. a) A cumulative total of 30 minutes of compressor operating time has passed since defrosting ended. b) When the temperature at the outdoor heat exchanger thermistor (Tho-R) and the temperature at the outdoor air temperature thermistor (Tho-A) is below the defrost operation start temperature continuously for 30 seconds.
Page 95: Abnormal Discharge Pipe Temperature
2) When the temperature of the compressor windings is abnormal, and internal thermostat built into the compressor operates. This is judged as an open-phase problem and results in an abnormal stop (E32). In single phase machines, this is sensed by CT1. Note (1) If the internal thermostat operates, it takes a long time to recover.
Page 96 2) Cooling a) When the temperature at the outdoor heat exchanger (sensed by Tho-R) and the outdoor air temperature (sensed by Tho-A) is 41°C or higher after the compressor starts, the compressor’s speed is reduced and the outdoor unit’s fan motor tap is changed to high speed operation at 7th speed. Item Indoor heat exchanger Compressor speed (rps)
Page 97 (h) Inverter protection control (FDCVA 151~251 models only) 1) Current cut control This prevents overcurrent in the inverter unit. If the current exceeds the set value, the compressor is stopped. It restarts automatically after 3 minutes, but if current cut operates 3 times in a period of 20 minutes, . an abnormal stop (E42) is performed.
Page 98 FDCA 301~601models 1) 1 minutes after the compressor starts in the case of cooling and dehumidification, and 9 minutes after in the case of heating, the indoor heat exchanger temperature (sensed by Thi-R) and indoor return air temperature (sensed by Thi-A) are detected and at the point when all the following conditions are satisfied, stop control is performed.
Page 99: 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 100: Installation Of Indoor Unit
1.5.1 Installation of indoor unit (1) Ceiling recessed compact type (FDTC) (a) Selection of installation location 1) Select location where the space above ceiling is larger than those mentioned below and perfect draining can be assured. 2) With the customer’s consent, select a location with following suitable conditions. a) Where cool air or hot air can easily pass through.
Page 101 (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) This unit is designed for installation on a 2 × 2 grid ceiling. If necessary, please detach the T bar temporarily before you install it.
Page 102: Drainage Test
3) Care must be taken so as not to allow an adhesive to run into the drain hose. When it is hardened, it can cause a breakage of a flexible part, if the flexible part receives stress. 4) Use VP-25 general-purpose hard PVC pipes for drain piping. Stepped 5) Insert the drain hose supplied as an accessory (soft PVC end) to the stepped part of rain hose piece...
Page 103 S Setup from a remote controller side. Drain pump operation from a recomte controller unit is possible. Operate a remote controller unit by following the steps described below. 1. To start a forced drain pump operation. q Press the TEST button for three seconds or longer. The display will change from “...
Page 104 mark AB) [Figure 4] 7) A panel is hooked on two bolts ( [Figure 5] [Figure 4] 8) Please rotate a hook, put in the slot on the panel, and carry out fixing the panel temporarily. [Figure 5] 9) Tighten the two bolts used for fixing the panel temporarily and the other two. 10) Please open the lid of a control box.
Page 105: Ceiling Recessed Type (Fdt)
(2) 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. FDT151R, 201R, 251R, 301R Over 290mm 2) With the customer’s consent, select a location with following suitable condi- FDT401R...
Page 106 (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 107 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 108 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 109: Panel Installation
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 110 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 outlet louver does not operate using 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 111: 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 112: Remove The Side Panels
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 113 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 114 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 115: 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 116: Cautions For Operation
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 117 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 118: 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 119 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 120 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 121 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 122 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 123 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 124: Installation Of Wired Remote Controller
The length of each wire that should be left after a 1.5.2 Installation of wired remote controller 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 125: Installation Of Outdoor Unit
1.5.3 Installation of outdoor unit Special instructions for R410A air conditioning systems ● Use only R410A refrigerant. R410A refrigerant is operated at about 1.6 times as high pressure as the conventional refrigerant ● Air conditioning systems using R410A are equipped with different-diameter outdoor unit service valve charge ports and check joints provided in the units so as to prevent wrong refrigerant from being charged by mistake.
Page 126: Carry-In And Installation Of Unit
(d) Location where strong wind blows against the unit ● Where the unit is likely to be subjected to strong winds, guard it from winds with the following measures. A failure to give protection against winds may cause performance degradation, a rise of high pressure resulting is an operation interruption, a broken fan, etc.
Page 127: Refrigerant Piping Work
(3) Refrigerant piping work Select the piping specification to fit the specification of indoor unit and installation location. (a) Decision of piping specification Piping specification Indoor unit Unit : mm Outdoor unit model Gas pipe Liquid pipe FDCVA151, 201 ø 12.7 t0.8 ø...
Page 128: Air Tightness Test And Air Purge
(c) How to remove the service panel First unscrew four screws holding the service panel in place, pull down the panel toward the direction indicated by the arrow, and then pull it toward you to remove it from the casing. Models FDCVA151~251 Models FDCA301~601 Internal hook...
Page 129: Refrigerant Charge
Hexagonal wrench type Compound pressure gauge Pressure gauge Gauge manifold -101KPa (-755mmHg) Hexagonal Head Wrench (M4) Handle Lo Handle Hi Charge hose Charge hose In-unit check joint Open Charge valve Gas service valve Liquid/gas operation Vacuum adapter • Open the valve rod until it touches the stopper. You need not apply lorce to push it further.
Page 130: Electrical Wiring
Models FDCVA151~251 Models FDCA301~601 Drain elbow (1 pc.) Drain grommet Drain elbow (1pc.) (2 pcs.) (local procurement) Hard vinyl chloride pipe for Drain grommet (4pcs.) (local procurement) general purpose (VP-16) (local procurement) Haed vinyl chloride (local procurement) general purpose(VP-16) (local procurement) (7) Electrical wiring ●...
Page 131 Power source and ground terminal block Wiring clamp ™ Secure the wiring so that no external force is applied to the connecting portion of terminal. Take out direction of wiring ™ Same as the refrigerant piping, 4 directions are allowed, which are right, front, rear and down.
Page 132: Setting Functions Using The Wired Remote Controller
(8) 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 133: Function Set
(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 134 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 135 (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 136: Checking Operation Date
• 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 137: 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 138 (b) Test run from remote controller. Cooling test operation procedure Carry out the following test operation procedure using the remote controller. a) Starting the cooling test operation 1 Press the ON/OFF button to start operation. 2 Press the MODE button and select “ (COOL)”.
Page 139: 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 140: Refrigerant Charging
(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 143: Indoor Unit Side
(b) Display sequence of error, inspection display lamp 1) One kind error Display corresponding to the error is shown. 2) More than one errors. ection Display section ¥ Displays the error of higher priority (When plural errors are persisting) Error code of remote controller ááááááááááá...
Page 144: Outdoor Unit
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 145 Parts layout on the indoor unit PCB Model: FDTC series PCB power supply Remote controller Float switch DPI switch connector (SW5) (Secondary side) CNW2 DPI switch Fan motor (SW9) J5~J7 (SW8) J1~J4 (SW7) SW10 Fan motor DPI switch LED2 (SW10) LED1 Heat exchanger thermistor,Return...
Page 146 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) IC12 IC11 Remote LED2 LED1...
Page 147 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 148 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 149 Model: FDUR 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 150 (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 151 Indoor unit Outdoor unit Red LED 3 time flash Red LED Stays OFF Keeps flashing Keeps flashing Green LED Green LED Note (1) The green LED in the outdoor unit is used in the FDCA301~601 models only. Remote controller wiring Correction connect check (Redá...
Page 152 Indoor – outdoor communications trouble ” Error display “ WAIT (Initial (when the power is turned on) If the power supply breaker is turned on again in a short Indoor unit Outdoor unit time (within 1 minute) the message “ WAIT ”...
Page 153 ● 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 154 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 Note (1) The green LED in the outdoor unit is used in the FDCA301~601 models only. oltage between X and Z Replacement remote...
Page 155 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 R , R2) Keeps flashing Green LED Keeps flashing Green LED Resistance temperature characteristics Note (1) The green LED in the outdoor unit is used in the FDCA301~601 models only.
Page 156 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 Note (1) The green LED in the outdoor unit is used in the FDCA301~601 models only. Notes (1) Check if the overload state exists or not using the following check points.
Page 157: Error Display
[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 Note (1) The green LED in the outdoor unit is used in the FDCA301~601 models only.
Page 158 [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 Note (1) The green LED in the outdoor unit is used in the FDCA301~601 models only. S Only case of FDTA501, 601 types Abnormal data check with remote controller...
Page 159 S Only case of FDKN Abnormal data check with remote controller After check reset, fan runs on Me. Fan O ? 3 (Black) is G D. Check the Replacement indoor 1 and 3 (Red Ð Black) Was it reproduced? circumstances. unit control PCB DC280V? 3 (Black) is G D.
Page 160 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 Note (1) The green LED in the outdoor unit is used in the FDCA301~601 models only. Are characteristics of Detectivie remote controller PCB Is the remote controller...
Page 161: 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 162 Parts layout on the outdoor unit PCB FDCVA151~251 type Sub PCB (Noise filter) Reactor Fan motor Stepping motor CNV1 CNI2 CNI3 Outdoor air temp. thermistor, Outdoor heat exchanger thermistor, Discharge pipe thermistor (Tho-A, Tho-R, Tho-D) DIP switch DIP switch Power transistor thermistor (SW6) (SW7) (Tho-IPM)
Page 163 S FDCA301~601 type Stepping motor PCB power supply connector (Secondary side) Outdoor air thermistor, Outdoor heat exchanger thermistor, CNA2 Discharge pipe thermistor Outdoor unit power supplly (Tho-A, Tho-D, Tho-R1, 2) IC12 PCB power supply connector (Primary side) High pressure switch 1 2 3 4 LED-R (63H1)
Page 165 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 Note (1) The green LED in the outdoor unit is used in the FDCA301 ~ 601 models only. s the connection Did the remote s the connection...
Page 166 Error display [Inverter primary current abnormal] [Only case of 151~251 type] Indoor unit Outdoor unit 1 time flash Red LED Stays OFF Red LED Green LED Keeps flashing ● Display conditions Restore it to the Is the power supply normal? normal state.
Page 167: E35 [Cooling Overload Operation]
[Open phase at L3 phase of 52C secondary side] (Only case of 301~601 type) Error display : Indoor unit Outdoor unit 1 time flash Red LED Stays OFF Red LED Keeps flashing Green LED Keeps flashing Green LED Notes (1) Also check if there is voltage at the L3 phase on the 52C primary side, but no voltage on the secondary side (coil wire disconnec- secondary side L3 phase Repair...
Page 168 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 Check the unit side. Note (1) The green LED in the outdoor unit is used in the FDCA301 ~ 601 models only. During cooling: Is FM operating? During heating: Is FM...
Page 169 Error display : [Defective outdoor air temperature thermistor] Indoor unit Outdoor unit 1 time flash Red LED Stays OFF Red LED Keeps flashing Green LED Keeps flashing Green LED Note (1) The green LED in the outdoor unit is used in the FDCA301 ~ 601 models only. Is the outdoor Is the outdoor Defective outdoor unit control PCB...
Page 170 Error display : [63H1 operation] (Only case of 301~601 type) Indoor unit Outdoor unit 1 time flash Red LED Stays OFF Red LED Keeps flashing Green LED Keeps flashing Green LED While the 63H1 is operating 1. During Cooling • Is the outdoor unit fan motor running? •...
Page 171 Error display [Inverter over-voltage trouble] (Only case of 151~251 type) Indoor unit Outdoor unit 1 time flash Red LED Stays OFF Red LED Green LED Keeps flashing Is there foreign matter Remove the foreign matter such as dust or dirt on the soldered such as dust and dirt.
Page 172 Error display : [Power transistor thermistor faulty.] (Only case of 151~251 type) Indoor unit Outdoor unit 1 time flash Red LED Stays OFF Red LED Green LED Keeps flashing Are the Defective outdoor unit control Is the power transistor Replacement (Defective power transistor thermistor thermistor characteristics power transistor thermistor input...
Page 173 Error display : [Abnormalities in compressor starting] (Only case of 151~251 type) Indoor unit Outdoor unit 1 time, 2 time, 3 time flash Red LED Stays OFF Red LED Green LED Keeps flashing Check of Check Inverter power transistor Is the power Is the balance the compressorÕs module...
Page 174 Power transistor module (including drive circuit) check method Only case of FDCVA151~251 types. 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 175: 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 remote controller (a) Louver motor does not operate Inspect at the indoor unit side. oes the Is LM wire Is LM wire efective indoor louver operate at broken? locked? unit PCB power on?
Page 176: 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 177: Check Display On Wireless Specification Models (Fden · Fdkn· 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 178 2. MULTI-TYPE (V MULTI) PACKAGED AIR-CONDITTIONER CONTENTS 2.1 GENERAL INFORMATION................179 2.1.1 Specific features ..................179 2.1.2 How to read the model name ..............179 2.1.3 Table of models ..................180 2.1.4 Table of system combinations ..............180 2.2 SELECTION DATA ..................181 2.2.1 Specifications ...................
Page 179 2.4 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER ....212 2.5 APPLICATION DATA ..................212 2.5.1 Installation of indoor unit ................213 2.5.2 Installation of wired remote controller ............213 2.5.3 Installation of outdoor unit ................ 213 (1) Installation ....................213 (2) Refrigerant piping work................
Page 180: General Information
2.1 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 181: 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) DCA301HENR DCA301HESR DCA401HENR DCA401HESR DCA501HESR DCA601HESR Outdoor unit to be combined (FDC) (3 Horse power) (3 Horse power) (4 Horse power) (4 Horse power) (5 Horse power) (6 Horse power) 2.1.4 Table of system combinations Branch pipe set Outdoor unit...
Page 182: 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 mo e Hi: 36 Me : 33 Lo: 32 Powerful mo e Hi: 38 Me : 35 Lo: 33 Noise level B(A)
Page 183 Model FDTA301R Model FDTA301R Item ( 1) Nominal cooling capacity ( 1) Nominal heating capacity Power source 1 Phase, 220/230/240V 50Hz Powerful mo e Hi: 38 Me: 35 Lo: 33 Noise level B(A) Mil mo e Hi: 35 Me: 33 Lo: 31 Exterior dimensions Unit:270 Height...
Page 184 (b) Ceiling suspended type (FDEN) Model FDENA151R, 201R Model FDENA151R FDENA201R FDENA251R Item ( 1) Nominal cooling capacity ( 1) Nominal heating capacity Power source 1 Phase, 220/230/240V 50Hz Powerful mo e Hi: 42 Me : 39 Lo: 38 Powerful mo e Hi: 44 Me : 41 Lo: 39 Noise level B(A) Mil mo e Hi: 39 Me : 38 Lo: 37...
Page 185 Model FDENA301R Model FDENA301R Item ( 1) Nominal cooling capacity ( 1) Nominal heating capacity Power source 1 Phase, 220/230/240V 50Hz Powerful mo e Hi: 44 Me: 41 Lo: 39 Noise level B(A) Mil mo e Hi: 41 Me: 39 Lo: 38 Exterior dimensions 1320 Height...
Page 186 (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 mo e Hi: 44 Me: 42 Lo: 40 Powerful mo e Hi: 47 Me: 44 Lo: 41 Noise level B(A) Mil mo e Hi: 42 Me: 40 Lo: 37...
Page 187 Model FDKNA251R Model FDKNA251R Item ( 1) Nominal cooling capacity ( 1) Nominal heating capacity Power source 1 Phase, 220/230/240V 50Hz Powerful mo e Hi: 48 Me: 45 Lo: 42 Noise level B(A) Mil mo e Hi: 45 Me: 42 Lo: 39 Exterior dimensions Height Width...
Page 188 (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: 4 Lo: 37 Exterior dimensions Height Width...
Page 189 Model FDURA301R Model FDURA301R Item ( 1) Nominal cooling capacity ( 1) Nominal heating capacity Power source 1 Phase, 220/230/240V 50Hz Noise level dB(A) i: 41 Lo: 37 Exterior dimensions Height Width Depth Net weight Refrigerant equipment Louver fin & inner grooved tubing eat exchanger Refrigerant control —...
Page 190: Outdoor Unit
(2) Outdoor unit Models FDCA301HENR, 301HESR Model FDCA301HENR FDCA301HESR Item Power source 1 Phase, 220/230/240V 50Hz 3 Phase, 380/400/415V 50Hz ( 1) Nominal cooling capacity ( 1) Nominal heating capacity Noise level dB(A) Exterior dimensions Height Width Depth Net weight Refrigerant equipment P26K3E-PFJ 1 P26K3E-TFD 1...
Page 191 Models FDCA401HENR, 401HESR Model FDCA401HENR FDCA401HESR Item Power source 1 Phase, 220/230/240V 50Hz 3 Phase, 380/400/415V 50Hz ( 1) Nominal cooling capacity 10.0 ( 1) Nominal heating capacity 11.2 Noise level dB(A) Exterior dimensions 1050 Height Width Depth Net weight Refrigerant equipment P41K3E-PFJ 1 P41K3E-TFD 1...
Page 192 Models FDCA501HESR, 601HESR Model FDCA501HESR FDCA601HESR Item Power source 3 Phase, 380/400/415V 50Hz ( 1) Nominal cooling capacity 12.6 14.2 ( 1) Nominal heating capacity 13.3 15.9 Noise level dB(A) Exterior dimensions 1300 Height Width Depth Net weight Refrigerant equipment P54K3E-TFD 1 P57K3E-TFD 1 compressor type &...
Page 193: 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 combined 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 194 (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 195 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 196: Range Of Usage & Limitations
2.2.2 Range of usage & limitations Model FDCA301~601 Item Indoor return air temperature (Upper, lower limits) efer to the selection chart (See page 205) Outdoor air temperature (Upper, lower limits) Indoor unit atmosphere (behind ceiling) Dew point temperature: 28ûC or less, relative humidity: 80% or less temperature and humidity Max.
Page 197: Exterior Dimensions
2.2.3 Exterior dimensions (1) Indoor unit ..Please see page 37 of Chapter 1 (2) Remote controller (Optional parts) ..Please see page 48 of Chapter 1 (3) Outdoor unit Unit: mm Models FDCA301HENR, 301HESR Liquid piping: ø9.52 (3/8") (Flare connecting) Gas piping: ø15.88 (5/8") (Flare connecting) Liquid piping: ø9.52 (3/8")
Page 198 Models FDCA401HENR, 401HESR Unit: mm Liquid piping: ø9.52 (3/8") (Flare connecting) Gas piping: ø15.88 (5/8") (Flare connecting) Terminal block Liquid piping: ø9.52 (3/8") (Flare connecting) Gas piping: ø15.88 (5/8") (Flare connecting) Opening for electric wring Opening for electric wring Opening for piping Opening for piping and electric wring and electric wring...
Page 199 Model FDCA501HESR Liquid piping: ø9.52 (3/8") Unit: mm (Flare connecting) Gas piping: ø15.88 (5/8") (Flare connecting) Terminal block Liquid piping: ø9.52 (3/8") (Flare connecting) Gas piping: ø15.88 (5/8") (Flare connecting) Opening for electric wring Opening for electric wring Opening for piping and electric wring Opening for piping and electric wring...
Page 200 Model FDCA601HESR Liquid piping: ø9.52 (3/8") Unit: mm (Flare connecting) Gas piping: ø15.88 (5/8") (Flare connecting) Terminal block Liquid piping: ø9.52 (3/8") (Flare connecting) Gas piping: ø15.88 (5/8") (Flare connecting) Opening for electric wring Opening for electric wring Opening for piping and electric wring Opening for piping and electric wring...
Page 201: Inside View
2.2.4 Inside view (1) Outdoor unit Models FDCA401HENR, 401HESR Electronic expansion valve ontrol box Accumlator 4-way valve Service valve (Liquid side) Service valve (Gas side) High pressure switch (63H1) ompressor...
Page 202: Exterior Appearance
2.2.5 Exterior appearance (1) Indoor unit ..Please see page 57 of Chapter 1 (2) Outdoor unit Models FDCA401HENR, 401HESR Models FDCA301HENR, 301HESR olar white olar white Models FDCA501HESR, 601HESR olar white...
Page 203: Piping System
2.2.6 Piping system (1) Twin type Models FDCA301HENR, 301HESR, 401HENR, 401HESR, 501HESR, 601HESR Gas branch pipe Cooling cycle Heating cycle Indoor unit Indoor unit Outdoor unit (¿15.88) Check joint Check joint Gas line (¿15.88) Thermistor ervice valve Branch pipe (Tho-A) 151,201:¿12.7 (Flare connecting) (Brazing)
Page 204 Preset point of the protective devices Equipped Parts name Mark FDCA301, 401, 501, 601 models unit Thermistor ON 63˚C (for protection over- OFF 56˚C loading in heating) Indoor unit Thermistor ON 1.0˚C (for frost prevention) OFF 10˚C Thermistor ON 121˚C (for detecting dis- Tho-D Outdoor unit...
Page 205: Selection Chart
2.2.7 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) Coefficient of cooling and heating capacity in relation to temperatures Indoor air W.B.
Page 206: Correction Of Cooling And Heating Capacity In Relation To Air Flow Rate Control (Fan Speed)
Model FDKN type Model FDKNA151R, 201R FDKNA251R Item 0.056 0.063 Air flow 0.041 0.048 0.028 0.034 Model FDUR type Model FDURA201R FDURA251R FDURA301R Item 0.111 0.053 0.069 Air flow 0.083 0.037 0.049 (2) Correction of cooling and heating capacity in relation to air flow rate control (fan speed) Coefficient: 1.00 at High, 0.95 at Low (3) Correction of cooling and heating capacity in relation to one way length of refrigerant piping It is necessary to correct the cooling and heating capacity in relation to the one way equivalent piping length between the indoor...
Page 207 Piping length limitations Model FDCA301~601 models Item Note (1) Values in the table indicate the one way piping length Max. one way piping length between the indoor and Max. vertical height difference Outdoor unit is higher 30m Outdoor unit is lower 15m outdoor units.
Page 208: Characteristics Of Fan
2.2.8 Characteristics of fan Please see page 63 of chapter 1 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. Notes (3) The noise levels measured in the field are usually higher than the data because of reflection.
Page 213: Outline Of Operation Control By Microcomputer
OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER Please see page 79 of chapter 1 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 214: Installation Of Indoor Unit
2.5.1 Installation of indoor unit ..Please see page 99 of Chapter 1 2.5.2 Installation of wired remote controller ..Please see page 123 of Chapter 1 2.5.3 Installation of outdoor unit Special instructions for R410A air conditioning systems ● Use only R410A refrigerant. R410A refrigerant is operated at about 1.6 times as high pressure as the conventional refrigerant ●...
Page 215 (d) Location where strong wind blows against the unit ● Where the unit is likely to be subjected to strong winds, guard it from winds with the following measures. A failure to give protection against winds may cause performance degradation, a rise of high pressure resulting is an operation interruption, a broken fan, etc.
Page 216: Refrigerant Piping Work
(2) Refrigerant piping work Select the piping specification to fit the specification of indoor unit and installation location. (a) Decision of piping specification Twin type Models FDCA301~601 [Branch pipe set : DIS-WA1] Chart of shapes of branch piping parts (DIS-WA1) Indoor unit Gas pipe Mark...
Page 217 (b) Flare processing 1) The unit and the refrigerant pipe are to be flare connected. Flare a pipe after a flare nut is attached onto it. 2) Because the parallel side measurement of a φ 12.7 or φ 15.88 flare nut will be changed depending on the measurement after flaring, do not fail to change the size of a flare to one specified for R410A.
Page 218: Air Tightness Test And Air Purge
(3) Air tightness test and air purge ● Always use a vacuum pump to purge air trapped within an indoor and the refrigerant piping. (a) Air tightness test 1) When all the flare nuts on both indoor and outdoor unit sides are fastened. Conduct an air-tightness test from the service valves (on both liquid and gas sides) closed tightly to check whether the system has no leaks.
Page 219: Refrigerant Charge
Hexagonal wrench type Pin type Remove the hexagon cap nut, set it as illustrated in the Hexagonal Head Wrench drawing below. (M4) Sloppre Open Factory setting Liquid/gas operation Open (close) • When a pin setting operation is completed, replace the •...
Page 220: Drain Piping Work
(6) 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 units is a problem. There are 3 drain holes provided on the bottom plate of an outdoor unit to discharge condensed water. When condensed water needs to be led to a drain, etc., install the unit on a flat base (supplied separately as an optional part) or concrete blocks.
Page 221 4) Between master and slave indoor units, connect between the same numbers 1, , 3 and X, Y, Z on the respective terminal blocks. 5) Set the same address for the master and slave indoor units as the communications address for the remote controller using rotary switch SW2 on the indoor units’...
Page 222: Setting Functions Using The Wired Remote Controller
(8) 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 223 (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 224 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 225 (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 226: 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 227: 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 228: Maintenance Data
(b) Test run from remote controller. Cooling test operation procedure Carry out the following test operation procedure using the remote controller. a) Starting the cooling test operation 1 Press the ON/OFF button to start operation. 2 Press the MODE button and select “ (COOL)”.
Page 229 3. WIRELESS KIT (OPTION FOR FDT MODEL ONLY) he FD 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 FD series all model Wireless kit model Model Paint color...
Page 230: Wireless Remote Controller
(4) Wireless remote controller nit: mm (5) Attachment of wireless kit (a) Installation of the receiver 1) Preparation before installation 1 Attachthe cover panel s pplied as an accessory onto the indoor nit according to the panel installation. (Refer to 107 page) 2 Remove the air ret rn grille.
Page 231 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 232 (6) Control of a plural number of indoor units with one remote controller Up to 16 indoor units can be connected. Terminal Connect indoor unitÕs X , Y and Z terminal block X Y Z swith 3-core connecting wires (remote controller Indoor unit Indoor unit (16)
Page 233 PACKAGED AIR-CONDITIONER Air-Conditioning & Refrigeration Systems Headquarters 16-5, 2-chome, Kounan, Minato-ku, Tokyo, 108-8215, Japan Fax : (03) 6716-5926 No.046(1.1A) R...

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