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Mitsubishi Electric PRH-P10MYA, Техническое и сервисное руководство

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PRH-P20MYA

PRH-P16MYA

3.7kW

2.2kW

5.5kW

3.7kW

Air flow

*    : factory pre setting ESP = 200 Pa

Air flow

*    : factory pre setting ESP = 200 Pa

(CMM)
(L/S)

(CMM)
(L/S)

 T

otal static pressure  (P

a)

 T

otal static pressure  (P

a)

0

100

200

300

400

500

600

700

800

900

1000

110

120

130

140

150

160

170

0

100

200

300

400

500

600

700

800

900

1000

140

150

160

170

180

190

200

210

220

1830

2340

2830

2340

3000

3670

Fan speed
    <rpm>

Fan speed
    <rpm>

internal static pressure

internal static pressure

600

600

700

800

900

1000

1100

1200

1300

700

800

900

1000

1100

1200

1300

- 25 -

Содержание PRH-P10MYA

Страница 1: ...TECHNICAL SERVICE MANUAL AIR COOLED ROOFTOP PACKAGED AIR CONDITIONERS For use with the R407C 2004 HEAT PUMP PRH P8MYA PRH P10MYA PRH P16MYA PRH P20MYA Models Unit ...

Страница 2: ... DIAGRAM 1 Unit 2 Skeleton of Transmission Line Connection 0 Technical Data to Meet LVD 1 Standard Operation Data 2 Cooling Capacity Curves 3 Heating Capacity Curves 4 Reduction Ratio by Frosting 5 Capacity Input Ratio against Changes in Room Airflow Rate 6 Bypass Factor Curves 7 Cooling Sensible Heating Capacity Table 8 Fan Performance 9 Center of Gravity 10 NC Curve A SERVICE DATA 1 Appearance o...

Страница 3: ...Emergency operation 9 Self diagnosis and troubleshooting C Test run 1 Before test run 2 Test run procedures 3 Self diagnosis 4 Remote controller diagnosis D INSTALLATION 1 Space required around units 2 Installation of the unit 3 Duct construction 4 Lifting method 5 Drain piping 6 Modification method of fan direction From side flow to top flow 7 The putting condition of the belt 40 40 41 45 52 53 5...

Страница 4: ...f the liquid refrigerant indicated on the air conditioner Since R407C is a nonazeotropic refrigerant if addi tionally charged when the refrigerant leaked the com position of the refrigerant in the refrigerant cycle will change and result in a drop in performance or abnor mal stopping Use a vacuum pump with a reverse flow check valve The vacuum pump oil may flow back into the refriger ant cycle and...

Страница 5: ...t on upper part of cylinder Vacuum pump Vacuum drying Current product Can be used by attach ing an adapter with a check valve Vacuum pump with a check valve Current product Flare tool Flaring of pipes Current product Bender Bending of pipes Current product Application oil Applied to flared parts Current product Ester oil or Ether oil or Alkybenzene Small amount Torque wrench Tightening of flare nu...

Страница 6: ...flux when brazing between copper pipes or between a copper pipe and copper coupling 4 If installed refrigerant pipes are not immediately connected to the equipment then braze and seal both ends of them Reasons 1 The new refrigerant oil is 10 times more hygroscopic than the conventional oil The probability of a machine failure if water infiltrates is higher than with conventional refrigerant oil 2 ...

Страница 7: ...rigerant circuit when the vacuum pump power is turned off power failure It is also possible to attach a check valve to the actual vacuum pump afterwards 2 Standard degree of vacuum for the vacuum pump Use a pump which reaches 0 5 Torr 500 MICRON or below after 5 minutes of operation In addition be sure to use a vacuum pump that has been properly maintained and oiled using the specified oil If the ...

Страница 8: ...7C is a mixture of 3 refrigerants each with a different evaporation temperature Therefore if the equipment is charged with R407C gas then the refrigerant whose evaporation temperature is closest to the outside temperature is charged first while the rest of refrigerants remain in the cylinder Note In the case of a cylinder with a syphon liquid R407C is charged without turning the cylinder up side d...

Страница 9: ...ries symbol Self contained type rooftop type Refrigerant P R407C Heat pump type Series symbol Y 3 phase 380V 400V 415V 50Hz 3N Design sequence Compressor horse power P8 8H P P10 10H P P16 16H P P20 20H P Design sequence Service reference PRH P R H P 1 0 M Y A E U 6 ...

Страница 10: ...ion Button Time selection Button Time setting Button Louver Button This button does not operate in this model Fan speed adjustment Button Up down airflow direction Button This button does not operate in this model Ventilation Button Checking built in Button Test run Button Filter Button This button does not operate in this model ON OFF Button Position of built in room temperature Never expose the ...

Страница 11: ...ILABLE is displayed when the Airflow direction button or Louver button are pressed This indicates that this room unit is not equipped with the fan direction adjustment function and the louver function When power is turned ON for the first time it is normal that H0 is displayed on the room temperature indication For max 2 minutes Please wait until this H0 indication disappear then start the operati...

Страница 12: ...tput Type Motor output Oil type Crankcase heater H x W x D Remote controller temperature setting range Indoor side air flow direction Indoor side fan Indoor side heat exchanger type Outdoor side fan Outdoor side heat exchanger type Compressor External finish External dimension Air filter Drain pipe Thread Noise level Net weight Protection devices High pressure switch Low pressure switch fuse Over ...

Страница 13: ...tor output Type Motor output Oil type Crankcase heater H x W x D Remote controller temperature setting range Indoor side air flow direction Indoor side fan Indoor side heat exchanger type Outdoor side fan Outdoor side heat exchanger type Compressor External finish External dimension Air filter Drain pipe Thread Noise level Net weight Protection devices High pressure switch Low pressure switch fuse...

Страница 14: ...18 2 81 134 8 31 14 3 0 31 1 1 100 1 2 2 8 ITEM PRH P8MYA PRH P10MYA Cooling VOLT TOTAL INPUT TOTAL RATED CURRENT POWER FACTOR START CURRENT COMPRESSOR INPUT RATED CURRENT O D FAN INPUT RATED CURRENT I D FAN External static pressure INPUT RATED CURRENT TOTAL INPUT TOTAL RATED CURRENT POWER FACTOR START CURRENT COMPRESSOR INPUT RATED CURRENT O D FAN INPUT RATED CURRENT I D FAN External static press...

Страница 15: ...plate X X Note 1 It is possible to change to ø 27 or ø 34 by selecting the conduit mounting plate 2 The hole size can be selected to ø 27 or ø 34 or ø 40 by selecting the conduit mounting plate 3 These dimension of supply air and return air duct flange are the same Accessory Conduit mounting plate Painted the same color as the unit body ø 27 1pc ø 34 1pc ø 40 and ø 27 1pc Tapping screw 4X12 4pcs A...

Страница 16: ...e 1 ø50 8 Knockout hole Bottom side hole for the power supply wiring Top view Drain R1 6 14X20 holes For mounting 6 ø3 9 holes Both side anchor bolt M10 Field supply ø27 hole Front side hole for the controller wiring Accessory plate Supply Knockout hole Service panel Front view Note 1 ø52 hole Front side hole for the power supply wiring Accessory plate X X Note 1 It is possible to change to ø40 by...

Страница 17: ...120 130 19 46 83 5 Front view Side view Rear view Model PAR 20MAA 8 REMOTE CONTROLLER 14 ...

Страница 18: ... 3 1 2 1 2 2 9 5 1 2 X6 X5 1 X4 2 6 7 8 1 TB6 2 F1 F2 5 3 5 3 1 BLACK WHITE RED CNIN LED1 SW3 1 2 OFF ON 3 4 5 6 2 SW5 6 5 1 1 2 OFF ON OUTDOOR SIDE CONTROLLER BOARD 1 2 OFF ON SW2 3 4 TR SW1 SW4 OFF C14 63H2 1 2 1 3 CN51 CN81 CN27 CN24 CN3D DC POWER SUPPLY CN3N CN3S CN34 CN28 3 1 3 1 TRANSMISSION CIRCIT 3 1 CNS3 CH 63L 63H1 SV1 21S4 TH3 TH2 TH1 LEV X05 X02 X03 X01 1 2 CN4 1 2 CN3 1 2 CN2 CN40 CNM...

Страница 19: ...o 2 ON OFF SW5 2 outdoor main board 4 3 2 1 CONTROL BOX NO 2 CONTROL BOX NO 1 BLACK WHITE RED 1 3 C19 X22 1 2 1 2 3 6 3 1 GREEN YELLOW BLUE BLACK WHITE RED L1 L2 L3 N PE 1 2 2 1 X11 6 3 3 1 PE N L3 L2 L1 6 5 4 3 2 1 1 2 3 4 5 6 TB1 POWER SUPPLY 3N PE 380 400 415V 50HZ L1 L2 L3 63H22 LED1 SW3 2 SW5 OUTDOOR MAIN BOARD OFF ON SW2 TR2 SW1 SW4 OFF C14 1 3 CN51 CN3D DC POWER SUPPLY CN34 CN28 3 1 TRANSMI...

Страница 20: ...Liquid pipe temperature at piping sensor C Compressor shell bottom temperature C Total I D FAN Refrigerant circuit Electrical characteristics 380 400 415 380 400 415 50 50 50 50 50 50 27 19 27 19 27 19 20 20 20 35 35 35 7 6 7 6 7 6 8 2 8 2 8 2 8 2 8 2 8 2 18 8 18 8 18 8 18 2 18 2 18 2 14 9 14 9 14 9 14 3 14 3 14 3 1 1 1 1 1 1 1 1 1 1 1 1 2 8 2 8 2 8 2 8 2 8 2 8 2 31 2 31 2 31 1 83 1 83 1 83 0 55 0...

Страница 21: ... 6 8 2 8 2 8 2 8 2 8 2 8 2 29 6 23 8 2 2 3 6 2 27 0 52 79 7 49 31 29 2 23 4 2 2 3 6 1 80 0 40 68 0 2 25 36 6 29 8 2 2 4 6 2 28 0 52 79 7 49 31 35 4 28 6 2 2 4 6 1 80 0 40 68 0 2 25 29 6 23 8 2 2 3 6 2 27 0 52 79 7 49 31 29 6 23 8 2 2 3 6 2 27 0 52 79 7 49 31 29 2 23 4 2 2 3 6 1 80 0 40 68 0 2 25 36 6 29 8 2 2 4 6 2 28 0 52 79 7 49 31 35 4 28 6 2 2 4 6 1 80 0 40 68 0 2 25 29 2 23 4 2 2 3 6 1 80 0 4...

Страница 22: ...8 16 0 6 0 8 1 1 2 1 4 Capacity ratio 5 3 1 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 22 39 41 43 20 18 16 0 7 0 9 1 1 1 22 Input ratio 12 10 8 6 4 2 0 2 4 6 8 10 12 14 16 18 15 20 25 0 6 0 8 1 1 2 1 4 Capacity ratio 12 10 8 6 4 2 0 2 4 6 8 10 12 14 16 18 25 20 15 0 6 0 8 1 1 2 1 4 Input ratio Indoor inlet air wet bulb temp CWB inlet air wet bulb tem p CW B Indoor Indoor inlet air dry bu...

Страница 23: ...y Input ratio Heating Airflow rate m3 min 5 Capacity Input Ratio against Changes in Room Airflow Rate Model PRH P8MYA Model PRH P10MYA 0 9 1 1 1 55 65 75 85 Capacity Input 1 1 0 9 1 55 65 75 85 Capacity Input 0 9 1 1 1 70 80 90 100 110 Capacity Input 0 9 1 1 1 70 80 90 100 110 Capacity Input Capacity Input Capacity Input Capacity Input Capacity Input 20 ...

Страница 24: ... 210 216 Capacity Input ratio Airflow rate m3 min Capacity Input ratio Airflow rate m3 min Capacity Input ratio Airflow rate m3 min Capacity Input ratio Airflow rate m3 min Capacity Input Capacity Input Capacity Input Capacity Input Model PRH P16MYA Model PRH P20MYA Capacity Input Capacity Input Cooling Heating Capacity Input Capacity Input Heating Cooling 21 ...

Страница 25: ...900 16200 15300 14800 SHC 14400 14100 13900 13600 13200 12900 CA 19300 18700 18100 17400 16600 16000 SHC 14300 14100 13800 13500 13200 12900 CA 20000 19500 18900 18000 17400 16900 SHC 15300 15100 14800 14500 14200 14000 CA 20800 20300 19700 19000 18200 17700 SHC 15300 15100 14900 14600 14300 14100 CA 21900 21500 20900 20200 19500 19000 SHC unit kcal h 15000 14900 14700 14400 14200 14000 23 16 25 1...

Страница 26: ...00 40200 38200 36800 SHC 36000 35300 34600 33800 32900 32300 CA 48000 46600 45000 43200 41200 40000 SHC 35700 35100 34500 33700 32900 32400 CA 49800 48600 47000 44800 43200 42000 SHC 38200 37700 37100 36200 35500 35000 CA 51600 50400 49000 47200 45400 44000 SHC 38100 37600 37100 36400 35700 35100 CA 54600 53400 52000 50400 48400 47200 SHC 37600 37100 36600 36000 35300 34900 23 16 25 18 27 19 28 20...

Страница 27: ...re setting ESP 100 Pa 110 1830 CMM L S 105 100 1670 95 90 1500 85 80 1330 75 70 1170 80 1330 75 70 1170 65 60 1000 55 0 800 700 600 500 400 300 200 100 0 100 200 300 400 500 600 Total static pressure Pa Fan speed rpm Fan speed rpm internal static pressure internal static pressure 900 1000 1100 1200 1300 800 900 1000 1100 1200 1300 1400 1500 1400 1500 1600 1700 ...

Страница 28: ...re Pa Total static pressure Pa 0 100 200 300 400 500 600 700 800 900 1000 110 120 130 140 150 160 170 0 100 200 300 400 500 600 700 800 900 1000 140 150 160 170 180 190 200 210 220 1830 2340 2830 2340 3000 3670 Fan speed rpm Fan speed rpm internal static pressure internal static pressure 600 600 700 800 900 1000 1100 1200 1300 700 800 900 1000 1100 1200 1300 25 ...

Страница 29: ... 152 4 6 B56 red 1 1 4 1291 114 3 4 5 127 5 B55 red 1 5 4 CMM L S rpm mm inch mm inch inch kW rpm mm inch mm inch inch kW rpm mm inch mm inch inch kW rpm mm inch mm inch inch kW Fan speed Motor side Pulley size Fan side Pulley size Belt size Motor poles Fan speed Motor side Pulley size Fan side Pulley size Belt size Motor poles rpm mm inch mm inch inch kW Fan speed Motor side Pulley size Fan side ...

Страница 30: ... SP Pa Air flow 350 450 550 650 112 1870 692 127 5 254 10 B46 red 2 2 4 844 152 4 6 254 10 B48 red 2 2 4 875 127 5 203 2 8 B43 red 2 2 4 1067 152 4 6 203 2 8 B44 red 3 7 4 1119 139 7 5 5 177 8 7 B42 red 3 7 4 120 2000 692 127 5 254 10 B46 red 2 2 4 844 152 4 6 254 10 B48 red 2 2 4 875 127 5 203 2 8 B43 red 2 2 4 1067 152 4 6 203 2 8 B44 red 3 7 4 1119 139 7 5 5 177 8 7 B42 red 3 7 4 140 2330 692 1...

Страница 31: ... 88 9 3 5 152 4 6 B37 red 3 7 4 875 127 5 203 2 8 B43 red 3 7 4 1008 127 5 177 8 7 B41 red 3 7 4 1119 139 7 5 5 177 8 7 B42 red 5 5 4 1190 127 5 152 4 6 B40 red 5 5 4 160 2670 799 88 9 3 5 152 4 6 B37 red 3 7 4 875 127 5 203 2 8 B43 red 3 7 4 1008 127 5 177 8 7 B41 red 3 7 4 1119 139 7 5 5 177 8 7 B42 red 5 5 4 1190 127 5 152 4 6 B40 red 5 5 4 180 3000 799 88 9 3 5 152 4 6 B37 red 3 7 4 875 127 5 ...

Страница 32: ...r1 r2 r3 V belt thickness Reference B Over 125 Under 160 Over 160 Under 200 Over 200 34 15 86 36 38 16 07 16 29 12 5 5 5 9 5 19 0 12 5 0 2 0 5 0 5 1 0 1 2 11 C B A MOTOR CAPACITY kW 1 1 1 5 5 5 24 38 0 028 0 007 0 028 0 007 27 41 0 128 0 007 0 128 0 009 8 10 0 018 0 018 0 028 0 013 B C A Pulley outside dimensions are shown below Unit mm 2 2 3 7 28 0 028 0 007 31 0 128 0 007 8 0 028 0 013 ...

Страница 33: ...er rope Over 8m x 2 Must be durable against unit weight For the lifting of unit for movement Please be sure to suspend at four points and not to give any shock to unit Never apply two point lifting as it is dangerous 101cm 33cm 49cm Below 40 Name plate Service panel Compressor position Suspending spot 2 point front and rear G Lift unit slowly by suspending rope uniformly so that the rope will not ...

Страница 34: ...tection pad Name plate Indicates the unit front side Hanger rope Over 14m x 2 Service panel Center of gravity 2 point front and rear Must be durable against unit weight For the lifting of unit for movement Please be sure to suspend at four points and not to give any shock to unit Never apply two point lifting as it is dangerous Use pads properly to prevent the scratching of external panel caused b...

Страница 35: ...ate minimum audible limit on continuous noise OCTAVE BAND CENTER FREQUENCIES Hz OCTAVE BAND PRESSURE LEVEL dB 0dB 20µPa OCTAVE BAND CENTER FREQUENCIES Hz OCTAVE BAND PRESSURE LEVEL dB 0dB 20µPa PRH P8MYA PRH P10MYA dB dB NC20 NC60 NC70 NC70 NC50 NC40 NC30 NC20 NC30 NC60 NC50 NC40 A characteristics 60 8000Hz 35 4000Hz 43 2000Hz 47 1000Hz 52 500Hz 59 250Hz 63 125Hz 64 63Hz 72 A characteristics 59 80...

Страница 36: ...imum audible limit on continuous noise OCTAVE BAND CENTER FREQUENCIES Hz OCTAVE BAND PRESSURE LEVEL dB 0dB 20µPa OCTAVE BAND CENTER FREQUENCIES Hz OCTAVE BAND PRESSURE LEVEL dB 0dB 20µPa dB dB PRH P20MYA PRH P16MYA NC20 NC60 NC70 NC70 NC50 NC40 NC30 NC20 NC30 NC60 NC50 NC40 A characteristics 63 8000Hz 40 4000Hz 46 2000Hz 54 1000Hz 56 500Hz 62 250Hz 64 125Hz 65 63Hz 71 A characteristics 62 8000Hz 3...

Страница 37: ...ATA PRH P8MYA P10MYA P16MYA P20MYA unit PRH P8MYA P10MYA P16MYA P20MYA with cover removed Propeller fan Fan guard Outdoor side heat exchanger Outdoor side fan motor Check joint high pressure Check joint low pressure Electrical parts box 34 ...

Страница 38: ... board Outdoor side F C board Outdoor side N F board Transformer Magnetic contactor for Indoor side fan motor 52F Terminal block remote controller transmission line Terminal block power Magnetic contactor for compressor 52C Overcurrent relay 51C Overcurrent relay 51F Indoor side power board Indoor side controller board 35 ...

Страница 39: ...mer TR2 Overcurrent relay 51C2 Magnetic contactor for compressor 52C2 Transformer TR1 Magnetic contactor for compressor 52C1 Overcurrent relay 51C1 Terminal block TB11 Terminal block power Terminal block TB21 Outdoor side F C board Auxiliary relay X1 Overcurrent relay 51F Outdoor side N F board Outdoor side N F board Magnetic contactor for fan motor 52F Terminal block remote controller transmissio...

Страница 40: ...rmistor Liquid temp TH1 Compressor At the back of the heat exchanger panel header cover When this screw is removed the header cover is removed Solenoid valve SV1 Electric expansion valve LEV Drain connection R1 Drain pan Motor pulley Fan pulley Fan casing Sirroco fan Accumulator Pressure switch 63L Pressure switch 63H2 Pressure switch 63H1 4 way valve Indoor side heat exchanger Indoor side fan mot...

Страница 41: ...e switch Control Strainer 2 Refrigerant Circuit Cooling There are 2 circuits for PRH P16 and 20MYA operation Heating operation 3 Refrigerant Charge 4 Operation Range 5 43 Outdoor air temperature CDB 24 15 Indoor air temperature CWB 12 18 Outdoor air temperature CWB 27 15 Indoor air temperature CDB Amount of infusion of coolant at ex factory R407C 7 7 kg R407C 8 2 kg x 2 Model PRH P8MYA PRH P20MYA ...

Страница 42: ... over current relay Fuse Outdoor side controller board N F board F C board Fuse 51C 51F F F1 F2 PRH P20MYA 22A 27A PRH P10MYA 27A PRH P16MYA 22A 2 8A 7 5A 3 6A 5 0A 63H1 3 3MPa OFF 6 3A Fuse Indoor side power board F1 4A 15A ITEM Outdoor side fan motor internal thermostat 49F 135 C OFF PRH P8MYA 39 ...

Страница 43: ...rrent relay Magnetic contractor 4 way valve LEV solenoid valve crankcase heater Key input LCD Send receive Communication circuit Communication circuit Transformer Fan control Fan control Compressor Outdoor side fan Indoor side fan Current detection Supply power Power Indoor side outdoor side controller boards communication LED1 DC5V 12V 5V 1 Composition of Control 1 Function block diagram 1 For ea...

Страница 44: ...functions a High pressure protection 63H1 b Compressor overcurrent protection 51C c Liquid temp thermistor trouble TH1 d Discharge temperature protection TH2 118 C e Discharge temp ther mistor trouble TH2 f Condenser evaporater temp thermistor trouble TH3 g Low pressure protection 63L Operation value 3 3 MPa P8MYA 22 A P10MYA 27 A Less than 39 C or greater than 88 C Less than 40 C or greater than ...

Страница 45: ...ollowing expression determines the next fan step count nj 1 nj 1 nj nj nj Current fan step nj Displacement step amount nj control If nj 1 100 nj 1 100 If nj 1 20 nj 1 20 If TH1 50 C or 63H2 is OFF nj 1 100 FAN nj Outputs are all In the night mode the maximum value of nj is 80 When TH1 50 C Target condensation temperature 31 C Condensation temperature TH1 20 nj 50 50 nj 100 Current output t 49 C 5 ...

Страница 46: ...ted compressor operation time has exceeded T1 initial setting 50 minutes and the piping temperature TH1 is below 10 C b When the integrated compressor C Piping differential temperature TH1 TH10 TH1 2 The defrosting prohibit time T1 is set as following based on the defrosting time T2 Note T1 is reset at the end of defrosting or by cooling ON command Note When the compressor was stopped during defro...

Страница 47: ... solenoid valve turns ON for 2 minutes c When the power is turned on or when the compressor restarted after it has been stopped for 30 minutes or longer the solenoid valve turns ON for 5 minutes if the liquid temperature TH1 is staying below 25 C d The item b or c is applied to the mode change from heating to cooling e When the previous operation mode is cooling and the compressor restarted within...

Страница 48: ...nlet temp re reading 3 phase power source detection Cooling only switching Model setting Remarks Function None Night mode Defrosting end switching Defrosting prohibit time switching None Switch effec tive timing stopped stopped stopped Switch SW1 When CN33 shorted mode switching Operation by switch operation ON OFF Night mode Normal mode Fixed Training Kind of switch DIP SW Pole 1 2 3 4 5 6 1 Tria...

Страница 49: ...play Check contents at power on E8 Indoor side outdoor side communication receive abnormal outdoor side unit E9 Indoor side outdoor side communication send abnormal outdoor side unit EA Indoor side outdoor side connection erroneous wiring Eb Indoor side outdoor side connection erroneous wiring indoor side unit power failure disconnection Ed Serial communication abnormal M NET E0 E7 Communication o...

Страница 50: ...nately Example When 115 every other second 1 15 0 100 When 100 or higher 100s digit and 10s and units digits are displayed alternately Example When 100 every other second 1 00 0 999 When 100 or higher 100s digit and 10s and units digits are displayed alternately Example When 425 every other second 4 25 0 999 When 100 or higher 100s digit and 10s and units digits are displayed alternately Example W...

Страница 51: ...topped Example Comp only ON at cooling operation C4 39 88 When 0 C or lower and temperature are displayed alternately Example When 15 every other second 15 0 216 When 100 or higher 100s digit and 10s and units digits are displayed alternately Example When 130 every other second 1 30 When no abnormality history 0 When no abnormality history 0 0 999 When 100 or higher 100s digit and 10s and units di...

Страница 52: ...ntake temperature TH4 8 39 5 Indoor set temperature 17 30 Code display Code display C C C SW2 setting Display contents Description of display Unit Outdoor side unit set information 1 Function setting display valves 3 phase power source detection Do 1 Do not 0 Cooling only switching Cooling only 2 H P 0 Night mode Night mode 1 Normal mode 0 Defrosting end time 12 C continuous 2 minutes 2 8 C contin...

Страница 53: ...d alternately Example When 150 every other second 1 50 0 130 When 100 or higher 100s digit and 10s and units digits are displayed alternately Example When 100 every other second 1 00 1 5 C C C SW2 setting Display contents Description of display Unit Indoor side Control mode Indoor side Ordinary Hot adjustment Defrosting Heater ON Freeze prevention Surge prevention Compressor OFF Display 0 1 2 3 4 ...

Страница 54: ...nd 10s and units digits are displayed alternately Example When 100 every other second 00 0 400 When 100 or higher 100s digit and 10s and units digits are displayed alternately Example When 200 every other second 2 00 39 88 When 0 C or lower and temperature are displayed alternately Example When 10 every other second 10 0 216 When 100 C or higher 100s digit and 10s and units digits are displayed al...

Страница 55: ...ay contents Description of display Unit 1 2 3 4 5 6 ON OFF 1 2 3 4 5 6 ON OFF 1 2 3 4 5 6 ON OFF 4 Function of switch on indoor side controller board 1 DIP SW1 for model Selection DIP SW1 has been set at factory 2 DIP SW2 for Capacity Setting DIP SW2 has been set at factory 3 DIP SWE for Emergency Operation PRH P8MYA P10MYA P16MYA P20MYA SW1 1 3 4 ON SW1 2 5 OFF PRH P8MYA 16MYA SW2 1 2 3 and 4 OFF...

Страница 56: ... Measure the resistance value across the terminals with a multimeter Winding temperature 20 C Measure the resistance value across the terminals with a multimeter Winding temperature 20 C Normal 4 3 kΩ 9 6 kΩ 160 kΩ 410 kΩ Abnormal Open or short Based on thermistor characteristic table next page TH1 3 4 5 6 TH2 White Blue Black Normal 45 5 Ω Abnormal Open or short Motor lead wire Between 2 phases N...

Страница 57: ... 460 kΩ 2 Rt 15 exp 3 460 0 C 15 kΩ 10 C 9 7 kΩ 20 C 6 4 kΩ 25 C 5 3 kΩ 30 C 4 3 kΩ 40 C 3 1 kΩ 1 1 273 t 273 Resistance High temperature thermistor Thermistor Discharge temperature detection TH2 Thermistor Discharge temperature detection TH2 Thermistor R120 7 465 kΩ 2 B constant 4 057 kΩ 2 Rt 7 465 exp 4 057 20 C 250 kΩ 70 C 34 kΩ 30 C 160 kΩ 80 C 24 kΩ 40 C 104 kΩ 90 C 17 5 kΩ 50 C 70 kΩ 100 C 1...

Страница 58: ... Red Orange Blue Brown Yellow Brown Red Blue Yellow White Connector Outdoor side controller board CN40 Drive circuit Output phase No ø1 ø2 ø3 ø4 Output state 1 2 3 4 ON OFF OFF ON ON ON OFF OFF OFF ON ON OFF OFF OFF ON ON LEV opening and closing operations When the power is turned on to register the valve posi tion a 2200 pulses valve close signal is output and is al ways set to point A If the val...

Страница 59: ...ssembly of the valve body up and down and controls the flow by changing the distance between the orifice and the bottom end of the valve Trouble mode Microcomputer drive cir cuit faulty LEV mechanism locked LEV motor coil open or shorted Connector connection in correct or contact faulty Judgment method 1 Disconnect the outdoor side controller board connector and connect the check LED shown below W...

Страница 60: ...nit in the motor removed state dry the bellows section by performing the cooling operation for 30 minutes 4 6 Remove the cap of the replacement motor and butt the bottom of the motor against the top of the valve body and hold it so that both are aligned and connect the motor to the valve body with the lock nut Coat the entire periphery of the threaded part with screw lock Be sure that the screw lo...

Страница 61: ...or unit wiring diagram d A power failure causes emergency operation to become continuous operation ON OFF temperature adjust ment and other operations cannot be performed from the remote controller e Since cool air is discharged from the indoor side unit when the outdoor side unit starts the defrosting operation during heating emergency operation do not operate the air conditioner for a long time ...

Страница 62: ...ting with SW4 2 on outdoor side board SW4 1 not used SW4 Cooling Heating OFF ON 1 2 NO YES 4 Emergency operation method Before starting recheck that the trouble allows emergency operation 5 Emergency operation release method Turn off mains power a Turn on mains power e Turn off emergency operation switch SWE on indoor side controller board b Open CN31 emergency operation connector on outdoor side ...

Страница 63: ...fuse on outdoor side controller board b Part faulty 1 Indoor outdoor connection wire con tact faulty 2 Outdoor side controller board send receive circuit faulty 3 Indoor side controller board send receive circuit faulty 4 Noise has entered on power supply or indoor side outdoor side controller board connection wire 1 Indoor outdoor connection wire con tact faulty 2 Outdoor side controller board se...

Страница 64: ... faulty 5 Compressor locked 6 Connector CN23 on outdoor side controller board dislodged or contact faulty 7 51C 8 Liquefied refrigerant gas entering and accumulating in the compressor disconnected or contact faulty Judgment method and remedy 1 Check input super heat Check for refrigerant leakage and check piping length Charge with additional refrigerant 2 3 Turn off power and restart operation and...

Страница 65: ...ide due to dirty fan 7 Dirty heat exchanger on the indoor side 8 Fan motor lock on the indoor side motor malfunction 4 8 Drop in low pressure due to reduced evaporation capacity during cooling 9 Short cycle on the outdoor side 10 Dirty heat exchanger on the outdoor side 11 Fan motor lock motor malfunction or FANCON board malfunction on the outdoor side 9 11 Drop in low pressure due to reduced evap...

Страница 66: ...door side controller board send receive circuit faulty 3 Noise entered on remote controller transmission line 1 Remote controller send receive circuit faulty 2 Noise entered on remote controller transmission line 1 Indoor outdoor connection wire con tact faulty 2 Outdoor side controller board send receive circuit faulty 3 Indoor side controller board send receive circuit faulty 4 Noise entered on ...

Страница 67: ...lty 1 Thermistor characteristics faulty 2 Connector contact faulty Insertion faulty 3 Drain sensor wiring open or contact faulty 4 Indoor side controller board faulty Judgment method and remedy 1 3 Check thermistor resistance value 0 C 15 0 kΩ 10 C 9 7 kΩ 20 C 6 4 kΩ 30 C 5 3 kΩ 40 C 3 1 kΩ Open or faulty contact can be detected by applying force pulling bending to lead wire while measuring thermi...

Страница 68: ...er waves created by trans mission of drain water from lead wire clogged filter etc 4 Indoor side controller board faulty Cool and dry 1 Filter is clogged insufficient air flow 2 Air duct short cycle 3 Low load operation low temperature exceeding allowable range 4 Indoor side fan motor faulty 5 Outdoor side fan control faulty intermediate period winter 6 Refrigerant overcharged 7 Refrigerant circui...

Страница 69: ...istor detection faulty Judgment method and remedy 1 Operate in test run mode and check piping temperature 2 Check remote controller room tempera ture display and piping temperature in test run mode P9 Piping 2 phase pipe sensor abnormal 1 If thermistor short or open is de tected and the compressor enters the 3 minutes restart prevention mode and does not return to nor mal after 3 minutes an abnorm...

Страница 70: ...oller transmission line contact faulty 2 All remote controllers set as slave remote controller 3 Remote controller send receive circuit faulty 4 Indoor side controller board send receive circuit faulty 5 Noise entered on remote controller transmission line Judgment method and remedy 1 Check if the unit or remote controller transmission line disconnected or loose 2 Set one remote controller as mast...

Страница 71: ...o CN32 on indoor side controller board Air conditioner is connected to MELANS and is set to local operation prohibit mode from centralized control ler etc 3 Cause of item 2 1 Insufficient refrigerant 2 Filter clogged 3 Outdoor side heat exchanger clogged 4 Air duct short cycle 5 LEV malfunction Symptom judgment and remedy 1 Check LED2 on indoor side controller board 1 Steady light Check remote con...

Страница 72: ...LEV malfunction Symptom judgment and remedy 1 Since the discharge temperature rises when there is leakage judge by measuring the tem perature Check piping connections etc for gas leak age 2 Check heat insulation 3 Open intake grille and check filter Clean filter and remove dust and dirt 4 Since the indoor side piping temperature and outlet pressure rise when the heat exchanger is clogged judge by ...

Страница 73: ...ase heater If the current is running for a shorter period of time damage to the compressor could result For specific models requiring changing of settings for selection of power supply ON OFF capability make proper changes referring to the description for Selection of Functions through Remote Controller After the above checks are complete carry out the test run as indicated in the following outlin...

Страница 74: ...After startup display 00 is dis played correct operation After startup display error code is displayed After startup display F1 negative phase is displayed After startup display 00 or EE is displayed EE is displayed when a test run is made After startup display EA error for number of units or Eb unit number error is displayed After startup display 00 is dis played correct operation After startup d...

Страница 75: ...cated M NET address setting M NET error in PH W transmission M NET bus busy M NET communication error with P transmission M NET error no ACK M NET error no response Undefined error code Discharge temperature error CN23 Short circuit Connector Unplugged Open short in discharge temp thermistor Open short in liquid temp or condenser evaporater temp thermistor Compressor overcurrent interruption 51C o...

Страница 76: ...on Indoor side control condition Error code history 1 Error code history 2 Display contents tens place O stop C cooling H heating d defrosting units place 1 SV1 Relay output SV1 21S4 52C 2 21S4 4 52C Ex During cooling mode when 52C and SV1 are ON C5 When an error occurs the error code and error signal 1 are displayed in alternation Control mode display system The error code ex U8 UA and error indi...

Страница 77: ... OFF button to cancel self diagnosis The unit will stop This operation is ineffectual when operation is prohibited CLOCK ON OFF STAND BY DEFROST INDOOR UNIT ADDRESS NO ERROR CODE CLOCK ON OFF ßC 1Hr ßC CHECK MODE FILTER CHECK FUNCTION STAND BY DEFROST INDOOR UNIT ADDRESS NO ERROR CODE CLOCK ON OFF ßC 1Hr ßC CHECK MODE FILTER CHECK FUNCTION 2 3 4 5 STAND BY DEFROST INDOOR UNIT ADDRESS NO ERROR CODE...

Страница 78: ...e controller 2 The remote controller has a nonconformity The remote controller must be replaced Error display 1 NG flashes to show a nonconformity in the transmitter receiver circuit Potential problems other than those diagnosed for the remote controller 1 Single transmission not possible if error display 2 E3 flashes There is noise on the transmission line or damage of other remote controllers fo...

Страница 79: ...the front and the back sides shall be within overall height of unit If the panel height is exceeded add the h dimension to L1 and L2 L1 450 L2 250 Example When h is 100 the L1 dimension becomes 450 100 550 mm 4 Continuous installation Space required for collective installation and continuous installation When installing several units leave the space between each unit considering passage for air an...

Страница 80: ...k 2 When there is an obstruction above the unit 3 When unit is surrounded by walls Note Wall heights H of the front and the back sides shall be within overall height of unit panel If the panel height is exceeded add the h dimension to L1 L2 and L3 L1 450 L2 450 L3 250 Example When h is 100 the L1 dimension becomes 450 100 550 mm 4 Continuous installation Space required for continuous installation ...

Страница 81: ... fall down resulting in a personal injury Have installation work in order to protect against a strong wind and earthquake Any installation deficiency may cause unit to fall down resulting in a personal injury When building the foundation give full attention to the floor strength drain water disposal during operation drain water flows out of the unit and wiring routes Down wiring precautions When d...

Страница 82: ...ct openings in the building should be sealed with weather stripping to prevent rain duct sand etc from entering the building 6 Fans will not accept any external resistance to airflow and what provision is available if ductwork is to be fitted to the external fans 7 Correctly sized filters must be fitted and there is no provision within the unit however the filters field supply may be installed in ...

Страница 83: ...herwise you may get a cut in your hands Tear plastic packaging bag and scrap it so that children cannot play with it Otherwise plastic packaging bag may suffocate children to death When carrying in outdoor unit be sure to support it at four points Carrying in and lifting with 3 point support may make outdoor unit unstable resulting in a fall of it Protect the corners on the unit that come in conta...

Страница 84: ...ge as shown in the figures above 3 To prevent dew condensation and leakage provide drain pipes with insulation 4 Upon completion of the piping work check that there is no leakage and that the water drains off properly A Drain piping B Socket R1 C Drain trap D The drain pipe should e below the level xtend E 2 External static pressure F 2 E 70 24 69 1399 A C E F B D B Models PRH P8MYA P10MYA Models ...

Страница 85: ...EP 2 When working with the fan E suspended do not rope the shaft of the fan 3 Re install the top panel A cover B flange C and panel D STEP 3 Between flange C top panel A and screw fittings should be adequately waterproofed Note In the case of top flow the inner cover F is not necessary Models PRH P8MYA P10MYA Models PRH P16MYA P20MYA STEP 3 STEP 1 STEP 2 C FB A D E B D C A STEP 3 STEP 1 STEP 2 C E...

Страница 86: ...Set the tension of the per one belt when the flexion load is within the range as shown in the figure 1 and table 2 below at the proper flexion A 0 016 C mm 3 Adjust the suitable tension after the belt sit properly across the pulley after more 24 28 hours working When the new belt is used adjust the suitable tension about the 1 3 times of the maximum value of the flexion load 4 Readjust the belt ev...

Страница 87: ... certifies quality warranties based on the design development production installation and auxiliary services for products built at an authorized plant The Air Conditioning Refrigeration Systems Works acquired environmental management system standard ISO 14001 certification The ISO 14000 series is a set of standards applying to environmental protection set by the International Standard Organization...

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