Mitsubishi Electric PEH-P400MYA Technical & Service Manual Download Page 1

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TECHNICAL & SERVICE MANUAL

HEAT PUMP PEH-P400MYA

PEH-P500MYA

Models

AIR-COOLED SPLIT-TYPE

PACKAGED AIR CONDITIONERS

<Indoor unit>

2005

For use with the R407C

Summary of Contents for PEH-P400MYA

Page 1: ...TECHNICAL SERVICE MANUAL HEAT PUMP PEH P400MYA PEH P500MYA Models AIR COOLED SPLIT TYPE PACKAGED AIR CONDITIONERS Indoor unit 2005 For use with the R407C ...

Page 2: ...ainst Changes in Room Airflow Rate 16 2 Bypass Factor Curves 16 3 Cooling Sensible Heating Capacity Table 17 4 Airflow Characteristic Curves 17 5 Center of Gravity Indoor unit 18 6 NC Curve Indoor unit 19 7 SERVICE DATA 20 1 Appearance of Equipment 20 2 Internal Construction 21 3 Refrigerant Circuit 21 8 FUNCTION OF SWITCH ON INDOOR CIRCUIT BOARD 22 1 DIP SW1 for model Selection DIP SW1 has been s...

Page 3: ...efrigerating machine oil to deteriorate Use a vacuum pump with a reverse flow check valve If a vacuum pump that is not equipped with a reverse flow check valve is used the vacuum pump oil may flow into the refrigerant cycle and cause the refrigerating machine oil to deteriorate Prepare tools for exclusive use with R407C Do not use the following tools if they have been used with the conventional re...

Page 4: ...ends of the pipes should be sealed until immediately before brazing Wrap elbows and T s in plastic bags for storage The new refrigerator oil is 10 times more hygroscopic than the conventional refrigerator oil such as Suniso Water infiltration in the refrigerant circuit may deteriorate the oil or cause a compressor failure Piping materials must be stored with more care than with the conventional re...

Page 5: ...ons Use only the necessary minimum quantity of oil Reason 1 The refrigerator oil used for the equipment is highly hygroscopic and may introduce water inside Notes Introducing a great quantity of mineral oil into the refrigerant circuit may also cause a compressor failure Do not use oils other than ester oil ether oil or alkylbenzene ...

Page 6: ...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...

Page 7: ...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 ...

Page 8: ...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 ...

Page 9: ...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...

Page 10: ... MENU BACK DAY MONITOR SET CLOCK ON OFF Set Temperature buttons Down Up Timer Menu button Monitor Setbutton Mode button Return button Set Time buttons Back Ahead TimerOn Offbutton Set Day button Opening the door ON OFF button Fan Speed button Filter button Enter button Test Run button Airflow Up Down button Louver button Operation button To preceding operation number Ventilation button Operation b...

Page 11: ... ited by a master controller Timer Is Off indicator Indicates that the timer is off Temperature Setting Shows the target temperature Day of Week Showsthecurrentdayoftheweek Time Timer Display Shows the current time unless the simple or Auto Off timer is set If the simple or Auto Off timer is set shows the time remaining Sensor indication Displayed when the remote controller sensor is used Locked i...

Page 12: ...er mountable major options Accessories Special note Non standard specifications etc 1 The cooling and heating capacities are the maximum capacities that were obtained by operating in the above air conditions and with a refrigerant pipe of about 7 5 m 2 The actual capacity characteristics vary with the combination of indoor and outdoor units See the technical informaition 3 The operating noise is t...

Page 13: ...ble major options Accessories Special note Non standard specifications etc 1 The cooling and heating capacities are the maximum capacities that were obtained by operating in the above air conditions and with a refrigerant pipe of about 7 5 m 2 The actual capacity characteristics vary with the combination of indoor and outdoor units See the technical informaition 3 The operating noise is the data t...

Page 14: ... Refrigerant pipe ø12 7 1 2 braze Refrigerant pipe ø12 7 1 2 braze Refrigerant pipe ø25 4 1 braze Right side view Left side view Front view Top view Rubber bush For the controller wiring Bottom side Rubber bush For the outdoor unit connecting wiring Bottom side Rubber bush For the power supply wiring Bottom side Return air Supply air A View A 2 Places 81 150 1388 49 10X130Pitch 1300 280 1099 208 8...

Page 15: ...1 1 8 braze Refrigerant pipe ø28 58 1 1 8 braze Refrigerant pipe ø12 7 1 2 braze View A A Right side view Left side view Front view Return air Supply air Top view Rubber bush For the controller wiring Bottom side Rubber bush For t he outdoor unit connecting wiring Bottom side Rubber bush For the power supply wiring Bottom side 91 54 2 Places 130 100 110 50 25 1890 1099 90 60 190 29 5 15 15 5X110Pi...

Page 16: ... 2 Remote Controller Models PAR 21MAA 120 130 19 46 83 5 Front view Side view Rear view 14 ...

Page 17: ...nd no other trouble exists emergency controller board switch SWE ON on the indoor operation for cooling or heating can be performed by changing the setting of LED TRANSMISSION INDOOR OUTDOOR LED3 LED POWER SUPPLY REMOTE CONTROLLER LED2 LED POWER SUPPLY LED1 SWE SW2 VARISTOR ZNR FUSE T6 3AL250V FUSE REMOTE CONTROLLER INDOOR UNIT THERMISTOR TERMINAL BLOCK INTERNAL THERMOSTAT INDOOR FAN MOTOR OVER CU...

Page 18: ...g Input Capacity 123 140 130 150 160 168 Capacity Input ratio Airflow rate m3 min 1 0 1 05 1 08 0 95 Input Capacity Heating 143 160 150 170 180 190 200 204 Capacity Input ratio Airflow rate m3 min 1 0 1 05 1 08 0 95 Input Capacity 150 143 160 170 180 190 200 204 Capacity Input ratio Airflow rate m3 min 1 0 1 05 0 95 Cooling Input Capacity Models PEH P400MYA Models PEH P500MYA 2 Bypass Factor Curve...

Page 19: ...8600 28900 40000 31000 41600 30900 43800 30400 35000 28600 37400 28400 39000 30500 40600 30500 43000 30100 33800 28100 36200 27900 37800 30100 39400 30100 41800 29700 32400 27400 34800 27300 36000 29300 38000 29500 40400 29200 30600 26600 33200 26700 34800 28800 36400 28900 39000 28700 29600 26200 32000 26200 33800 28400 35400 28500 38000 28300 45000 32900 48000 32700 49800 34600 51600 34600 54600...

Page 20: ... 18 5 Center of Gravity Indoor unit Models PEH P400MYA P500MYA Item Model name PEH P400MYA 830 1015 420 390 340 340 PEH P500MYA Center of gravity X Y Z unit mm Y Z X ...

Page 21: ...TER FREQUENCIES Hz OCTAVE BAND PRESSURE LEVEL dB 0dB 20µPa External static pressure 150Pa Approximate minimum audible limit on continuous noise Approximate minimum audible limit on continuous noise 10 20 30 40 50 60 70 80 90 63Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz NC 40 NC 30 NC 20 NC 70 NC 60 NC 50 10 20 30 40 50 60 70 80 90 63Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz NC 20 NC 3...

Page 22: ... motor Terminal bed remote controller transmission line Magnetic contactor fan motor Terminal bed TB4 2 No 2 Terminal bed power indoor outdoor connecting line Terminal bed TB4 1 No 1 Auxiliary relay indoor outdoor connecting line Indoor power board No 1 Indoor power board No 2 Indoor circuit board No 1 Indoor circuit board No 2 ...

Page 23: ...B Refrigerant piping connection No 1 øA Leg for installation Air filter Heat exchanger Fan motor Sirrocco fan Drian connection R1 Electrical parts box Drain pan Model name PEH P400MYA PEH P500MYA A 25 4 28 58 B 12 7 12 7 3 Refrigerant Circuit Brazing connection Indoor Heat exchanger Cooling operation PEH P400 500MYA is comprised of two refrigerant cycles Heating operation ...

Page 24: ...urned ON FAN turns ON Setting of emergency operation other than SWE is performed at the outdoor unit For a description of the specific emergency operation execution method refer to the outdoor unit PUH P200MYA PUH P250MYA Technical Service Manual PEH P400MYA P500MYA SW1 1 4 ON SW1 2 3 5 OFF PEH P400MYA SW2 3 5 ON SW2 1 2 4 OFF ON OFF 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 ON OFF ON OFF ON OFF PEH P500MYA S...

Page 25: ...s are complete carry out the test run as indicated in the following outline 2 Test run procedures 1 Indoor unit Operating procedures 1 2 3 4 5 Turn on the main power supply While the display on the remote controller indicates the remote controller is disabled Turn off the indicator before using the remote controller Press the TEST button twice successively within three seconds Test run starts TEST...

Page 26: ...tup 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 display 00 ...

Page 27: ...ntrol of fan revolutions There is no problem with the product Note The SW 4 2 operation mode cannot be changed during the test run To change test run mode stop the equipment with SW 4 1 change the operation mode then restart test run with SW 4 1 If the 2 hour timer is set the test run will stop automatically after 2 hours During the test run the room temperature display on the indoor unit will ind...

Page 28: ...successively within three seconds the display shown below appears Set the address or refrigerant address No you want to self check When the TEMP and buttons are pressed the address decreases and increases between 01 and 50 or 00 and 15 Set it to the address No or refrigerant address No you want to self check ximately three seconds after the change operation the self check refrigerant address chang...

Page 29: ...ck the power mark When normal voltage DC12V is not applied to the remote controller the powermark goes off When the power mark is off check the remote controller wiring and the indoor unit 2 Switch to the remote controller check mode When the H CHECK button is held down for five seconds or longer the display shown below appears 3 Remote controller check result When remote controller is normal Sinc...

Page 30: ... 28 MEMO ...

Page 31: ... 29 MEMO ...

Page 32: ...tifies 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 ISO...

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