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Mitsubishi Heavy Industries FDTVA151HEN Technical Manual

Collection data, packaged air-conditioner, split system, air to air heat pump type, alternative refrigerant r410a use models, ceiling recessed/wall mounted/ceiling suspension/ceiling mounted duct type
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TECHNICAL MANUAL
Collection data
PACKAGED AIR-CONDITIONER
(Split system, Air to air heat pump type)
Alternative refrigerant R410A use models
CEILING RECESSED TYPE
FDTVA151HEN
201HEN
251HEN
CEILING SUSPENSION TYPE
FDENVA151HEN
201HEN
251HEN
FDTA301HEN
301HES
401HEN
401HES
501HES
601HES
FDENA301HEN
301HES
401HEN
401HES
501HES
601HES
Manual No. '04•PAC -T-083
WALL MOUNTED TYPE
FDKNVA151HEN
201HEN
251HEN
CEILING MOUNTED DUCT TYPE
FDURVA201HEN
251HEN
FDKNA301HEN
301HES
FDURA301HEN
301HES
401HEN
401HES
501HES
601HES

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Summary of Contents for Mitsubishi Heavy Industries FDTVA151HEN

  • Page 1 Manual No. '04•PAC -T-083 TECHNICAL MANUAL Collection data PACKAGED AIR-CONDITIONER (Split system, Air to air heat pump type) Alternative refrigerant R410A use models CEILING RECESSED TYPE WALL MOUNTED TYPE FDTVA151HEN FDTA301HEN FDKNVA151HEN FDKNA301HEN 201HEN 301HES 201HEN 301HES 251HEN 401HEN 251HEN...

  • Page 2: Table Of Contents

    CONTENTS 1 GENERAL INFORMATION................. 1 1.1 Specific features ..................1 1.2 How to read the model name ..............1 2 SELECTION DATA ..................... 2 2.1 Specifications ....................2 2.2 Range of usage & limitations ..............33 2.3 Exterior dimensions ................. 34 2.4 Inside view ....................

  • Page 3: General Information

    GENERAL INFORMATION 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 4: Selection Data

    SELECTION DATA 2.1 Specifications (1) Ceiling recessed type (FDT) Model FDTVA151HEN FDTVA151HEN Model Item FDTA151 FDCVA151HEN Nominal cooling capacity 4000 [1800~4700] Nominal heating capacity 4500 [2000~5400] Power source 1 Phase, 220/230/240V 50Hz Cooling input 2.90/2.96 1.22 [0.35~1.55] Running current (Cooling) 5.1/5.5...
  • Page 5 Model FDTVA201HEN FDTVA201HEN Model Item FDTA201 FDCVA201HEN Nominal cooling capacity 5000 [2200~5600] Nominal heating capacity 5400 [2500~6300] Power source 1 Phase, 220/230/240V 50Hz 1.42 [0.42~1.66] Cooling input 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 input 2.54/2.60 6.6 [2.2~8.3]...
  • Page 6 Model FDTVA251HEN FDTVA251HEN Model Item FDTA251 FDCVA251HEN Nominal cooling capacity 5600 [2800~6300] 6700 [3100~7100] Nominal heating capacity Power source 1 Phase, 220/230/240V 50Hz 1.64 [0.54~1.90] Cooling input 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 input 2.54/2.60 7.9 [2.5~8.6] Running current (Heating)
  • Page 7 Model FDTA301HEN FDTA301HEN Model Item FDTA301 FDCA301HEN Nominal cooling capacity 7200 Nominal heating capacity 7300 Power source 1 Phase, 220/230/240V 50Hz 2.17 Cooling input 10.0 Running current (Cooling) Power factor (Cooling) Heating input 2.10 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:38 Me:35 Lo:33 Noise level...
  • Page 8 Model FDTA301HES FDTA301HES Model Item FDTA301 FDCA301HES Nominal cooling capacity 7200 Nominal heating capacity 7300 Power source 3 Phase, 380/400/415V 50Hz 2.17 Cooling input Running current (Cooling) Power factor (Cooling) Heating input 2.10 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:38 Me:35 Lo:33 Noise level dB(A)
  • Page 9 Model FDTA401HEN FDTA401HEN Model Item FDTA401 FDCA401HEN Nominal cooling capacity 10000 Nominal heating capacity 11200 Power source 1 Phase, 220/230/240V 50Hz 3.55 Cooling input 16.4 Running current (Cooling) Power factor (Cooling) Heating input 3.49 Running current (Heating) 15.7 Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:46 Me:43 Lo:41 Noise level...
  • Page 10 Model FDTA401HES FDTA401HES Model Item FDTA401 FDCA401HES Nominal cooling capacity 10000 Nominal heating capacity 11200 Power source 3 Phase, 380/400/415V 50Hz 3.48 Cooling input Running current (Cooling) Power factor (Cooling) Heating input 3.42 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:46 Me:43 Lo:41 Noise level dB(A)
  • Page 11 Model FDTA501HES FDTA501HES Model Item FDTA501 FDCA501HES Nominal cooling capacity 12500 Nominal heating capacity 13600 Power source 3 Phase, 380/400/415V 50Hz 4.30 Cooling input Running current (Cooling) Power factor (Cooling) Heating input 3.77 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:48 Me:45 Lo:43 Noise level dB(A)
  • Page 12 Model FDTA601HES FDTA601HES Model Item FDTA601 FDCA601HES Nominal cooling capacity 14300 Nominal heating capacity 16200 Power source 3 Phase, 380/400/415V 50Hz 4.33 Cooling input Running current (Cooling) Power factor (Cooling) Heating input 5.05 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:48 Me:45 Lo:43 Noise level dB(A)
  • Page 13 (2) Ceiling suspension type (FDE) Model FDENVA151HEN FDENVA151HEN Model Item FDENA151 FDCVA151HEN 3800 [1800~4700] Nominal cooling capacity 4500 [2000~5400] Nominal heating capacity Power source 1 Phase, 220/230/240V 50Hz Cooling input 1.18 [0.40~1.66] Running current (Cooling) 5.3 [1.8~7.3] Power factor (Cooling) Heating input 1.32 [0.42~1.76] 5.9 [1.9~7.8]...
  • Page 14 Model FDENVA201HEN FDENVA201HEN Model Item FDENA201 FDCVA201HEN 5000 [2200~5600] Nominal cooling capacity 5400 [2500~6300] Nominal heating capacity Power source 1 Phase, 220/230/240V 50Hz Cooling input 1.54 [0.47~1.82] Running current (Cooling) 6.9 [2.1~8.1] Power factor (Cooling) Heating input 1.57 [0.52~1.96] Running current (Heating) 7.0 [2.3~8.7] Power factor (Heating) Inrush current (L.R.A)
  • Page 15 Model FDENVA251HEN FDENVA251HEN Model Item FDENA251 FDCVA251HEN Nominal cooling capacity 5600 [2800~6300] Nominal heating capacity 6700 [3100~7100] Power source 1 Phase, 220/230/240V 50Hz Cooling input 1.74 [0.55~2.01] Running current (Cooling) 7.8 [2.5~8.9] Power factor (Cooling) Heating input 1.87 [0.58~2.03] Running current (Heating) 8.3 [2.6~9.0] Power factor (Heating) Inrush current (L.R.A)
  • Page 16 Model FDENA301HEN FDENA301HEN-SB Model Item FDENA301 FDCA301HEN Nominal cooling capacity 6400 Nominal heating capacity 7100 Power source 1 Phase, 220/230/240V 50Hz Cooling input 2.26 Running current (Cooling) 10.3 Power factor (Cooling) Heating input 2.19 10.2 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:44 Me:41 Lo:39 Noise level...
  • Page 17 Model FDENA301HES FDENA301HES Model Item FDENA301 FDCA301HES Nominal cooling capacity 6400 Nominal heating capacity 7100 Power source 3 Phase, 380/400/415V 50Hz 2.26 Cooling input Running current (Cooling) Power factor (Cooling) Heating input 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 18 Model FDENA401HEN FDENA401HEN Model Item FDENA401 FDCA401HEN Nominal cooling capacity 10000 Nominal heating capacity 11200 Power source 1 Phase, 220/230/240V 50Hz 3.44 Cooling input 15.9 Running current (Cooling) Power factor (Cooling) Heating input 3.10 Running current (Heating) 13.9 Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:46 Me:44 Lo:41 Noise level...
  • Page 19 Model FDENA401HES FDENA401HES Model Item FDENA401 FDCA401HES Nominal cooling capacity 10000 Nominal heating capacity 11200 Power source 3 Phase, 380/400/415V 50Hz Cooling input 3.32 Running current (Cooling) Power factor (Cooling) Heating input 3.05 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:46 Me:44 Lo:41 Noise level dB(A)
  • Page 20 Model FDENA501HES FDENA501HES Model Item FDENA501 FDCA501HES Nominal cooling capacity 12600 Nominal heating capacity 13300 Power source 3 Phase, 380/400/415V 50Hz 4.65 Cooling input Running current (Cooling) Power factor (Cooling) Heating input 3.84 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:48 Me:46 Lo:44 Noise level dB(A)
  • Page 21 Model FDENA601HES FDENA601HES Model Item FDENA601 FDCA601HES Nominal cooling capacity 14200 Nominal heating capacity 15900 Power source 3 Phase, 380/400/415V 50Hz 4.69 Cooling input Running current (Cooling) Power factor (Cooling) Heating input 4.38 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:48 Me:46 Lo:44 Noise level dB(A)
  • Page 22 (3) Wall mounted type (FDK) Model FDKNVA151HEN FDKNVA151HEN Model Item FDKNA151 FDCVA151HEN 4000 [1800~4700] Nominal cooling capacity 4500 [2000~5400] Nominal heating capacity Power source 1 Phase, 220/230/240V, 50Hz Cooling input 1.30 [ Running current (Cooling) 5.8 [ Power factor (Cooling) Heating input 1.30 [ Running current (Heating)
  • Page 23 Model FDKNVA201HEN FDKNVA201HEN Model Item FDKNA201 FDCVA201HEN 5000 [2200~5600] Nominal cooling capacity 5400 [2500~6300] Nominal heating capacity Power source 1 Phase, 220/230/240V, 50Hz Cooling input 1.66 [ Running current (Cooling) 7.4 [ Power factor (Cooling) Heating input 1.58 [ 7.1 [ Running current (Heating) Power factor (Heating) Inrush current (L.R.A)
  • Page 24 Model FDKNVA251HEN FDKNVA251HEN Model Item FDKNA251 FDCVA251HEN 5600 [2800~6000] Nominal cooling capacity 6300 [3100~7100] Nominal heating capacity Power source 1 Phase, 220/230/240V, 50Hz 1.99 [ Cooling input Running current (Cooling) 8.9 [ Power factor (Cooling) 1.85 [ Heating input 8.2 [ Running current (Heating) Power factor (Heating) Inrush current (L.R.A)
  • Page 25 Model FDKNA301HEN FDKNA301HEN Model Item FDKNA301 FDCA301HEN Nominal cooling capacity 6700 Nominal heating capacity 7300 Power source 1 Phase, 220/230/240V, 50Hz Cooling input 2.28 Running current (Cooling) 10.3 Power factor (Cooling) Heating input 2.22 Running current (Heating) 10.4 Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:49 Me:46 Lo:43 Noise level...
  • Page 26 Model FDKNA301HES FDKNA301HES Model Item FDKNA301 FDCA301HES Nominal cooling capacity 6700 Nominal heating capacity 7300 Power source 1 Phase, 380/400/415V, 50Hz Cooling input 2.28 Running current (Cooling) Power factor (Cooling) Heating input 2.22 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Powerful mode Hi:49 Me:46 Lo:43 Noise level dB(A)
  • Page 27 (4) Ceiling mounted duct type (FDUR) Model FDURVA201HEN FDURVA201HEN Model Item FDURA201 FDCVA201HEN 5000 [2200~5600] Nominal cooling capacity 5400 [2500~6300] Nominal heating capacity Power source 1 Phase, 220/230/240V, 50Hz Cooling input 1.64 [0.58~1.88] Running current (Cooling) 7.3 [2.6~8.4] Power factor (Cooling) Heating input 1.58 [0.60~1.96] Running current (Heating)
  • Page 28 Model FDURVA251HEN FDURVA251HEN Model Item FDURA251 FDCVA251HEN 5600 [2800~6300] Nominal cooling capacity 6400 [3100~7100] Nominal heating capacity Power source 1 Phase, 220/230/240V, 50Hz Cooling input 1.98 [0.69~2.33] Running current (Cooling) 8.8 [3.1~10.3] Power factor (Cooling) Heating input 1.77 [0.68~2.04] Running current (Heating) 7.9 [3.0~9.1] Power factor (Heating) Inrush current (L.R.A)
  • Page 29 Model FDURA301HEN FDURA301HEN Model Item FDURA301 FDCA301HEN Nominal cooling capacity 6700 Nominal heating capacity 7100 Power source 1 Phase, 220/230/240V, 50Hz 2.38 Cooling input Running current (Cooling) 11.0 Power factor (Cooling) Heating input 2.21 Running current (Heating) 10.4 Power factor (Heating) Inrush current (L.R.A) Noise level dB(A)
  • Page 30 Model FDURA301HES FDURA301HES Model Item FDURA301 FDCA301HES Nominal cooling capacity 6700 Nominal heating capacity 7100 Power source 3 Phase, 380/400/415V 50Hz 2.38 Cooling input Running current (Cooling) Power factor (Cooling) Heating input 2.21 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Noise level dB(A) Hi: 41 Lo: 37...
  • Page 31 Model FDURA401HEN Model FDURA401HEN Item FDURA401 FDCA401HEN Nominal cooling capacity 10000 Nominal heating capacity 11200 Power source 1 Phase, 220/230/240V 50Hz 3.56 Cooling input Running current (Cooling) 16.5 Power factor (Cooling) Heating input 3.28 Running current (Heating) 14.7 Power factor (Heating) Inrush current (L.R.A) Noise level dB(A)
  • Page 32 Model FDURA401HES FDURA401HES Model Item FDURA401 FDCA401HES Nominal cooling capacity 10000 Nominal heating capacity 11200 Power source 3 Phase, 380/400/415V 50Hz Cooling input 3.32 Running current (Cooling) Power factor (Cooling) Heating input 3.10 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Noise level dB(A) Hi: 42 Lo: 37...
  • Page 33 Model FDURA501HES FDURA501HES Model Item FDURA501 FDCA501HES Nominal cooling capacity 12500 Nominal heating capacity 13600 Power source 3 Phase, 380/400/415V 50Hz Cooling input 4.66 Running current (Cooling) Power factor (Cooling) 3.89 Heating input Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Noise level dB(A) Hi:43 Lo:38...
  • Page 34 Model FDURA601HES FDURA601HES Model Item FDURA601 FDCA601HES Nominal cooling capacity 14400 Nominal heating capacity 16000 Power source 3 Phase, 380/400/415V 50Hz Cooling input 4.79 Running current (Cooling) Power factor (Cooling) Heating input 4.63 Running current (Heating) Power factor (Heating) Inrush current (L.R.A) Noise level dB(A) Hi:43 Lo:38...

  • Page 35: Range Of Usage & Limitations

    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 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 Max.

  • Page 36: Exterior Dimensions

    2.3 Exterior dimensions (1) Indoor unit (a) Ceiling recessed type (FDT) Models FDTA151, 201, 251 unit : mm Decorative Panel Fresh air (Ceiling hole size) 860~890 opening for (Suspension bolts pitch) ducting Control box Exhaust air opening for ducting Liquid piping Air outlet Air inlet grille ø6.35(1/4")
  • Page 37 Model FDTA301 unit : mm Decorative Panel Fresh air (Ceiling hole size) 860~890 opening for (Suspension bolts pitch) ducting Control box Exhaust air opening for ducting Liquid piping Air outlet Air inlet grille ø9.52(3/8") VIEW A Gas piping Drain hose ø15.88(5/8") (Accessories) (Local setting)
  • Page 38 Model FDTA401 unit : mm Decorative Panel Fresh 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 inlet grille Air outlet Gas piping VIEW A ø15.88 (5/8") Drain hose (Accessories) (Local setting)
  • Page 39 Models FDTA501, 601 unit : mm Decorative Panel Fresh 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 outlet Air inlet grille VIEW A Gas piping ø15.88 (5/8") Drain hose (Accessories)
  • Page 40 (b) Ceiling suspension type (FDE) Models FDENA151, 201 Unit : mm Holes for suspension bolts (M8 to M10×4pcs.Not included) 290(Suspension bolts pitch) 1022(Suspension bolts pitch) Liquid piping Gas piping Drain hole connection(1) 1070 (VP20) Air outlet Indication board Note(1) The slope of drain piping inside the unit is sble to take incline of 10mm.
  • Page 41 Models FDENA401, 501, 601 Unit : mm Holes for suspension bolts 290(Suspension bolts pitch) (M8 to M10×4pcs.Not included) 1572(Suspension bolts pitch) Liquid piping Gas piping 1540 Drain hole connection(1) 1620 (VP20) Air inlrt grille Indication board Note(1) The slope of drain piping inside the unit is sble to take incline of 10mm.
  • Page 42 Model FDKNA251 Unit : mm Installation position diagram and installation space, from the front. Service Mounting plate space Unit 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 43 (d) Ceiling mounted duct type (FDUR) Models FDURA201, 251 Unit : mm Air inlet duct (Low of suspension lug) (Dimension for duct) Control box Suspension bolts (M10 × 4pcs) 886 (Suspension bolts pitch) 850 (Dimension for duct) Liquid piping ø6.35 (1/4”) Gas piping Air outlet duct 201:ø12.7 (1/2”)
  • Page 44 Model FDURA301 Unit : mm Air inlet duct (Low of suspension lug) (Dimension for duct) Control box Suspension bolts (M10 × 4pcs) 886 (Suspension bolts pitch) 850 (Dimension for duct) Liquid piping ø9.52 (3/8”) Gas piping Air outlet duct ø15.88 (5/8”) Drain (Connectable with VP25) Drain (Natural drainage, VP20)
  • Page 45 Models FDURA401, 501, 601 Unit : mm Air inlet duct (Dimension for duct) (Low of suspension lug) Control box Suspension bolts (M10 × 4pcs) 1406 (Suspension bolts pitch) 1370 (Dimension for duct) Liquid piping ø9.52 (3/8”) Gas piping ø15.88 (8/5”) Air outlet duct Drain (Connectable with VP25)
  • Page 46 (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 Remote controller intended for screw holes,...
  • Page 47 (b) Wireless remote controller Unit: mm FILTER AUTO COOL DRY FAN HEAT FAN HI LO ° C MODE TEMP ON/OFF 20.5...
  • Page 48 (3) Outdoor unit Models FDCVA151HEN, 201HEN 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 49 Model FDCVA251HEN 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 50 Models FDCA301HEN, 301HES Unit: mm Liquid piping: ø9.52 (3/8") (Flare connecting) Gas piping: ø15.88 (5/8") (Flare connecting) Liquid piping: ø9.52 (3/8") (Flare connecting) Terminal block Gas piping: ø15.88 (5/8") (Flare connecting) Opening for electric wring Opening for electric wring Opening for Opening for piping and piping and...
  • Page 51 Models FDCA401HEN, 401HES 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 52 Model FDCA501HES 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 53 Model FDCA601HES 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 54: Inside View

    2.4 Inside view (1) Outdoor unit Models FDCVA151HEN,201HEN,251HEN unit : mm Electronic expansion valve Control box 4-way valve Receiver (Heating) Receiver (Cooling) Service valve (Liquid side) Service valve (Gas side) Compressor Models FDCA401HEN,401HES Electronic expansion valve Control box Accumlator 4-way valve Service valve (Liquid side) Service valve...

  • Page 55: Exterior Appearance

    2.5 Exterior appearance (1) Indoor unit (a) Ceiling recessed type (FDT) Pearl white (b) Ceiling suspension type (FDEN) Light gray Light gray (Vertical louver) Pearl white Pearl white (Horizontal louver) (Side panel) (Front panel) Pearl white (Front panel) Pearl white (Air inlet grille) (c) Wall mounted type (FDKN) Models FDKNA151,201,251...
  • Page 56 (2) Outdoor unit Models FDCVA151HEN,201HEN,251HEN Models FDCA301HEN,301HES Sutakko white Polar white Models FDCA401HEN,401HES Models FDCA501HES,601HES Polar white Polar white...

  • Page 57: Piping System

    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:ø12.7 251:ø15.88 Strainer Service valve Heat exchanger (Flare connecting) Heat exchanger 4way valve Muffler Thermistor Thermistor Thermistor Discharge Compressor Muffler...
  • Page 58 Preset point of the protective devices Equipped 151, 201, 251 models 301, 401, 501, 601 models Parts name Mark 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 59: Selection Chart

    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 60 Model FDKN type Model FDKNA151, 201 FDKNA251 FDKNA301 Item 0.056 0.063 0.043 Air flow 0.041 0.048 0.034 0.028 0.034 0.025 Model FDUR type Model FDUR201 FDUR251 FDUR301 FDUR401 FDUR501, 601 Item 0.111 0.053 0.069 0.106 0.050 Air flow 0.083 0.037 0.049 0.079 0.034...

  • Page 61: Characteristics Of Fan

    2.8 Characteristics of fan (1) Ceiling mounted duct type (FDUR) Model FDURA201 Model FDURA251 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 FDURA301...

  • Page 62: Noise Level

    Models FDUR501, 601 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) 2.9 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 63 Model FDTA401 Models FDTA501, 601 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 64 (c) Wall mounted type (FDKN) Unit Measured based on JIS B 8616 Mike position as below Mike (Center & Low points) Model FDKNA151 Model FDKNA201 Model FDKNA251 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 65 Model FDURA401 Models FDURA501, 601 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 77: 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 78 (b) Wireless remote controller Signal sender OPERATION MODE indicator Signals are sent to the air conditioner Indicates selected operation mode from here. Filter reset indicator Fan speed mark is indicated when the FILTER Indicates the selected fan speed FILTER RESET button is pressed. Auto swing Temperature indicator Indicates the selection of swing louver.
  • Page 79 (2) Operation control function by the indoor controller (a) Room temperature control (Differential of thermostat) Heating operation Cooling operation OFF (52C) 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 80 (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 81 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 82 (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 83 (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 84 (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 85 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 CnT Input Note (1) The ON at the * mark indicates ON using the remote control switch, etc.
  • Page 86 (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 87 (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 88 3) Compressor protective start 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 89 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 90 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 91 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 92 1) Compressor speed (Expansion valve) control Speed is reduced. (The speed is reduced once every minute.) (151~251 models) Expansion valve control Retention (301~601 models) Release 151~251 models 301~601 models Discharge pipe temperature (˚C) 2) Abnormal discharge pipe temperature a) If the discharge pipe temperature rises to 105ºC (121ºC) or higher, the compressor is stopped [the outdoor unit’s fan motor stops 1 minute (30 seconds) later.
  • Page 93 FDCA301~601 models 1) Heating a) After the compressor starts, the temperature at the indoor heat exchanger temperature (ThI-R) is checked, and when all the following conditions are met, the electronic expansion valve (EEV) is controlled to control the high pressure rise. 1 The indoor heat exchanger temperature (ThI-R) is 60 (56)ºC or higher while the compressor is running.
  • Page 94 2) Discharge pipe temperature thermistor If the detected temperature is –10ºC or lower continuously for 5 seconds during the interval from 10 minutes to 10 minutes 20 seconds (2 minutes ~ 2 minutes 20 seconds) after the compressor goes ON, the compressor is stopped. After a 3-minute delay, the compressor is restarted, but in the case of the 151~251 models, if this condition is detected 3 times in a 40-minute period, or if it is detected again within a 60-minute period in the case of the 301~601 models, an abnormal stop is performed.
  • Page 95 (n) Low voltage protection control If a power supply voltage of 176 V or lower is detected while the compressor is stopped, or if a power supply voltage of 176 V or lower is detected for 3 minutes during compressor operation, the compressor is stopped. (o) Test operation 1) It is possible to operate the outdoor unit using SW9 (SW2) and SW5-4 on the outdoor unit PCB.

  • Page 96: Application Data

    APPLICATION DATA SAFETY PRECAUTIONS • Please read these “Safety Precautios” 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 97: Installation Of Indoor Unit

    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 below and perfect draining can be assured. Model Space above ceiling (h) FDT151, 201, 251, 301 Over 290mm 2) With the customer’s consent, select a location with following suitable condi-...
  • Page 98 (c) Suspension ¡ Please arrange four sets of a hanging 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 openign of 860~ 890.
  • Page 99 (d) Drain Piping 1) Drain piping should always be in downhili grade (1/50 ~ 1/100) and avoid riding across and elevation or making traps. • Good piping • Improper piping Suspension Avoid riding across an elevation 1.5 m ~ 2 m bolts Air vent Keep free from traps...
  • Page 100 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. 1 Press the TEST button for three seconds or longer. The display will change from “...
  • Page 101 4) Removing the air inlet grille 1 Raise up the notched portion of the air inlet grille and open it. 2 With the air inlet grille open, remove the air inlet grille hinge from the decorator panel. 5) Removing the corner panel •...
  • Page 102 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 103 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. Screw Claws 9) Installing the air inlet grille...
  • Page 104 (2) Ceiling suspension type (FDE) (a) Selection of installation location 1) A place where good air circulation and delivery can be obtained. Cold air throw Unit : m Models FDE151, 201 FDE251, 301 FDE401, 501, 601 Air throw Conditions (1) Installation height: 2.4 ~ 3.0 m above the floor (2) Fan speed: Hi (3) Location: Free space without obstacles (4) Distance of reach indicates the horizontal distance after the wind touched down the floor.
  • Page 105 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 106 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 107 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 108 Relation between illumination at receiver Caution item for close installation of unit and operating distance multiple units (Plan view) (Plan view) Effective scope Effective scope 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 109 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 110 (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 111 1) Fixing the suspension bolt (customer ordered parts M10) Securely fix the suspension bolt as illustrated below or in another way. Hole in anchor bolt Hole-in plug Insert Concrete Suspension bolt M10 Suspension bolt M10 nuts Suspension bolt M10 M10 Washer Indoor unit Indoor unit M10 Spring washer...
  • Page 112 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 113 8) Avoid positioning the drain piping outlet at a place where generation of odor may stimulated. Do not lead the drain piping direct into a sewer from where sulfur gas may generate. 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.
  • Page 114 2 Press the button once while “ TEST RUN ” is displayed, and cause “ DRAIN PUMP ” to be displayed. 3 When the SET button is pressed, a drain pump operation will start. Display: “ DRAIN PUMP RUN ” “...
  • Page 115 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 116: Installation Of Remote Controller

    (b) Recessed fitting 5.2 Installation of remote controller 1) The Electrical box and remote controller (shield (a) Selection of installation location wire must be use in case of extension) are first Avoid the following locations embedded. 1) Direct sunlight. 2) Close to heating device. Remote 3) Highly humid or water splashing area.

  • Page 117: Installation Of Outdoor Unit

    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 118 (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 119 (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 ø 12.7 × t0.8 ø...
  • Page 120 (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 121 Hexagonal wrench type Compound pressure gauge Pressure gauge Gauge manifold -101KPa (-755mmHg) Hexagonal Head Wrench (for R410A only) (M4) 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 122 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) (local procurement) general purpose (VP-16) Haed vinyl chloride (local procurement) general purpose(VP-16) (local procurement) (7) Electrical wiring ●...
  • Page 123 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 124 (9) Setting functions using the remote controller (a) The factory 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 control unit. 1 Remote controller unit functions ( 2 Indoor unit functions (I/U FUNCTION FUNCTION...
  • Page 125 (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 126 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 127 (d) Changing the remote controller’s temperature setting range 1) The temperature setting range of the remote controller can be changed. Through remote controller button operations, the upper limit and lower limit set temperature values can be changed individually. During heating operation, the changed upper limit value becomes valid and at times other than during heating operation, (during cooling, dehumidification, auto and fan operation), the changed lower limit value becomes valid.
  • Page 128 (10) 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.” 3 Press the TEST button continuously for 3 seconds or longer. The display changes from “...
  • Page 129 (12) Test run (a) Test run method 1) A test run can be initiated from an outdoor unit by using SW9 (SW2) and SW5-4 for on-site setting. 2) Models FDCVA151~251 When SW9 (press button switch) is pressed for 1 second and then released, the compressor will start operation approxi- mately 5 seconds later.

  • Page 130: Maintenance Data

    MAINTENANCE DATA 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 131: 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 134 (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 135 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 136 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 137 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, J6 SW10 (SW8) CNH CNN1 J1~J4 (SW7) DIP switch (SW9) Address switch Connector J9~J11 (SW2)
  • Page 138 Model: FDKN series This diagram shows the PCB for the 151~251. The component layout on the 301 PCB is different, but the functions are the same. Heat exchanger thermistor, Return air thermistor Remote controller Heat exchanger thermistor (Thl-R1, Thl-A) (Thl-R2) TB,3 Dip switch (SW5)
  • Page 139 Model: FDUR series Heat exchanger thermistor, Return air thermistor Address swith (Thl-R1, Thl-A) (SW2) (SW8) Heat exchanger thermistor DIP switch DIP switch (Thl-R2) (SW5) (SW9) Float switch Remote controller Connector J10~J11 J1~J4 (SW10) (SW7) (CNT) CNN1 CNN2 SW10 Drain motor LED2 LED1 52X3...
  • Page 140 (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 141 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 (Red·...

  • Page 142: Indoor Unit

    Indoor – outdoor communications trouble ” Error display “ WAIT (Initial (when the power is turned on) Indoor unit Outdoor unit Red LED Stays OFF Red LED 2 time flash Green LED Keeps flashing Green LED Keeps flashing Notes (1) If trouble occurs during communications, the error code E5 is displayed (Outdoor, Red LED flashes 2 times).
  • Page 143 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. Voltage between X and Z Replacement remote...
  • Page 144 Error display [Defective indoor unit heat exchanger thermistor] Indoor unit Outdoor unit Return air 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 Note (1) The green LED in the outdoor unit is used in the FDCA301 ~ 601 models only.
  • Page 145 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 146 [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 147 S Only case of FDKN Only case of 151~251 types 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.
  • Page 148 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 149 (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 150 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 themistor, Discharge pipe thermistor (Tho-A, Tho-R, Tho-D) DIP switch DIP switch Power transistor thermistor (SW6) (SW7) (Tho-IPM)
  • Page 151 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) LED-G...
  • Page 153 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. Is the connection Did the remote Is the connection...
  • Page 154 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 155 [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 156 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 157 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 158 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 159 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 160 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 161 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 compressor’s Replacement...
  • Page 162 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? 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 163 (4) Check abnormal operation data with the 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 164: Check Display On Wireless Specification Models (Fden · Fdkn)

    6.4 Check display on wireless specification models (FDEN · FDKN) (1) Indication board (a) FDEN Series Romote controller signal receiving part Backup switch TIMER CHECK Operation display light (Green) • Lights continously: Under air conditioner operaton • Keeps flashing: Under heating preparation (At the time of heating operation) •...
  • Page 165 PACKAGED AIR-CONDITIONER Air-Conditioning & Refrigeration Systems Headquarters 16-5, 2-chome, Kounan, Minato-ku, Tokyo, 108-8215, Japan Fax : (03) 6716-5926 No.110(1A) R...

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