Mitsubishi Electric PEH-P8MYA Technical & Service Manual
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Mitsubishi Electric PEH-P8MYA Technical & Service Manual

Mitsubishi Electric PEH-P8MYA Technical & Service Manual

Air-cooled split-type packaged air conditioners
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2003
AIR-COOLED SPLIT-TYPE
PACKAGED AIR CONDITIONERS
TECHNICAL & SERVICE MANUAL
<Indoor unit>
Models
HEAT PUMP PEH-P8MY
A, PEH-P10MYA
PEH-P16MYA, PEH-P20MYA
For use with the R407C

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Summary of Contents for Mitsubishi Electric PEH-P8MYA

  • Page 1 2003 AIR-COOLED SPLIT-TYPE PACKAGED AIR CONDITIONERS TECHNICAL & SERVICE MANUAL <Indoor unit> Models HEAT PUMP PEH-P8MY A, PEH-P10MYA PEH-P16MYA, PEH-P20MYA For use with the R407C...

  • Page 2: Table Of Contents

    Contents Page PRECAUTIONS FOR DEVICES THAT USE R407C REFRIGERANT ........1 [1] Storage of Piping Material ....................2 [2] Piping Machining ........................ 3 [3] Necessary Apparatus and Materials and Notes on Their Handling ........4 [4] Brazing ..........................5 [5] Airtightness Test ........................6 [6] Vacuuming ..........................

  • Page 3: Precautions For Devices That Use R407C Refrigerant

    ¡ PRECAUTIONS FOR DEVICES THAT USE R407C REFRIGERANT Caution Do not use the existing refrigerant piping. Use a vacuum pump with a reverse flow check valve. • The vacuum pump oil may flow back into the refriger- • The old refrigerant and refrigerator oil in the existing ant cycle and cause the refrigerator oil to deteriorate.

  • Page 4: Storage Of Piping Material

    [1] Storage of Piping Material (1) Storage location Store the pipes to be used indoors. (Warehouse at site or owner’s warehouse) Storing them outdoors may cause dirt, waste, or water to infiltrate. (2) Pipe sealing before storage Both ends of the pipes should be sealed until immediately before brazing. Wrap elbows and T’s in plastic bags for storage.

  • Page 5: Piping Machining

    [2] Piping Machining Use ester oil, ether oil or alkylbenzene (small amount) as the refrigerator oil to coat flares and flange connections. 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: •...

  • Page 6: Necessary Apparatus And Materials And Notes On Their Handling

    [3] Necessary Apparatus and Materials and Notes on Their Handling The following tools should be marked as dedicated tools for R407C. <<Comparison of apparatus and materials used for R407C and for R22>> Apparatus Used R407C Gauge manifold Evacuating, refrigerant filling Current product Charging hose Operation check...

  • Page 7: Brazing

    [4] Brazing No changes from the conventional method, but special care is required so that foreign matter (ie. oxide scale, water, dirt, etc.) does not enter the refrigerant circuit. Example: Inner state of brazed section When non-oxide brazing was not used When non-oxide brazing was used Items to be strictly observed: 1.

  • Page 8: Airtightness Test

    [5] Airtightness Test No changes from the conventional method. Note that a refrigerant leakage detector for R22 cannot detect R407C leakage. Halide torch R22 leakage detector Items to be strictly observed: 1. Pressurize the equipment with nitrogen up to the design pressure and then judge the equipment’s airtightness, taking temperature variations into account.

  • Page 9: Charging Of Refrigerant

    [7] Charging of Refrigerant R407C must be in a liquid state when charging, because it is a non-azeotropic refrigerant. For a cylinder with a syphon attached For a cylinder without a syphon attached Cylin- Cylin- Cylinder color identification R407C-Gray Charged with liquid refrigerant R410A-Pink Valve Valve...

  • Page 10: Part Names And Functions

    2 PART NAMES AND FUNCTIONS Indoor unit Air inlet • Air inlet : Sucks the ambient air in. • Filter : The filter bruit into the unit as standard is a simple filter to remove visible dust and dirt. If Filter air pulification is one of the conditions required for use, consult with your dealer.
  • Page 11 Display CENTRALLY CONTROLLED 1Hr. ON OFF ßC CLOCK CHECK FILTER CHECK MODE ßC TEST RUN STAND BY ERROR CODE FUNCTION NOT AVAILABLE DEFROST TEMP. ON/OFF Current time/Timer Not available function Centralized control Ventilation Abnormality control M Function setting mode Operation mode: COOL, DRY, AUTO,...

  • Page 12: Specifications

    3 SPECIFICATIONS Specifications of air-source heat pump type packaged air conditioner (Ceiling concealed type indoor unit) PEH-P8MYA Model name Quantity Symbol Cooling Heating Capacity kcal/h 18,000 20,400 20.9 23.7 Indoor side Dry bulb temperature/wet bulb temperature 27 °C/19 °C 20 °C/–...
  • Page 13 Specifications of air-source heat pump type packaged air conditioner (Ceiling concealed type indoor unit) Model name Quantity Symbol PEH-P10MYA Cooling Heating Capacity kcal/h 22,400 26,200 26.0 30.5 Indoor side Dry bulb temperature/wet bulb temperature 27 °C/19 °C 20 °C/– Air con- dition Outdoor side Dry bulb temperature/wet bulb temperature 35 °C/24 °C...
  • Page 14 Specifications of air-source heat pump type packaged air conditioner (Ceiling concealed type indoor unit) PEH-P16MYA Model name Quantity Symbol Cooling Heating Capacity kcal/h 36,000 40,800 41.8 47.4 Indoor side Dry bulb temperature/wet bulb temperature 27 °C/19 °C 20 °C/– Air con- dition Outdoor side Dry bulb temperature/wet bulb temperature 35 °C/24 °C...
  • Page 15 Specifications of air-source heat pump type packaged air conditioner (Ceiling concealed type indoor unit) Model name Quantity Symbol PEH-P20MYA Cooling Heating Capacity kcal/h 44,800 52,400 52.0 61.0 Indoor side Dry bulb temperature/wet bulb temperature 27 °C/19 °C 20 °C/– Air con- dition Outdoor side Dry bulb temperature/wet bulb temperature 35 °C/24 °C...

  • Page 16: Part Names And Functions

    4 PART NAMES AND FUNCTIONS (1) Indoor Unit • Models PEH-P8MYA 1240 1280 1880 (1) When connecting air inlet (2) When installing the suspension fixtures prior to installation of the indoor unit without inlet duct (3) When hanging the indoor unit directly without inlet duct...
  • Page 17 • Models PEH-P10MYA 1440 1480 2080 (1) When connecting air inlet (2) When installing the suspension fixtures prior to installation of the indoor unit without inlet duct (3) When hanging the indoor unit directly without inlet duct (A) Service space (B) Suspension bolt pitch (C) Air inlet (D) Air outlet...
  • Page 18 • Models PEH-P16MYA 1637 1587 2187 (1) When connecting air inlet (2) When installing the suspension fixtures prior to installation of the indoor unit without inlet duct (3) When hanging the indoor unit directly without inlet duct (A) Service space (B) Suspension bolt pitch (C) Air inlet (D) Air outlet...
  • Page 19 • Models PEH-P20MYA 1940 1890 2490 (1) When connecting air inlet (2) When installing the suspension fixtures prior to installation of the indoor unit without inlet duct (3) When hanging the indoor unit directly without inlet duct (A) Service space (B) Suspension bolt pitch (C) Air inlet (D) Air outlet...
  • Page 20 (2) Remote Controller • Models PAR-20MAA (Front view) (Side view) (Rear view) –18–...

  • Page 21: Electrical Wiring Diagram

    T B 5 CN41 (SWE) on the indoor controller board. 4 3 2 1 6. SW2 is shown PEH-P10MYA setting. CN29 In case of PEH-P8MYA setting is shown as below. CN21 4 3 2 1 INLET L E D 1 CN20...
  • Page 22 • Models PEH-P16,20MYA BLUE Note: CIRCUIT BREAKER (FIELD SUPPLY) The dotted lines show field wiring. TH1-1 PEH-P16,20MYA :15A Color of earth wire is yellow and green TH2-1 POWER SUPPLY WHITE 3N~PE 380/415V BLACK TH5-1 twisting. 50HZ 3 2 1 Specification subject to change without INDOOR CN2L CONTROLLER BOARD...

  • Page 23: Technical Data To Meet Lvd

    6 TECHNICAL DATA TO MEET LVD [1] Capacity/Input Ratio against Changes in Room Airflow Rate • Models PEH-P8MYA Cooling Heating 1.05 1.05 Input Input Capacity Capacity 0.95 0.95 Airflow rate (m /min) Airflow rate (m /min) • Models PEH-P10MYA Cooling Heating 1.05...
  • Page 24 • Models PEH-P16MYA Heating Cooling 1.08 1.05 1.05 Input Input Capacity Capacity 0.95 Airflow rate (m /min) 0.95 Airflow rate (m /min) • Models PEH-P20MYA Heating Cooling 1.05 1.08 Input 1.05 Input Capacity Capacity 0.95 Airflow rate (m /min) 0.95 Airflow rate (m /min) –22–...

  • Page 25: Bypass Factor Curves

    [2] Bypass Factor Curves PEH-P10MYA PEH-P8MYA 0.30 0.20 0.25 0.15 0.20 0.10 0.15 0.05 0.10 0.00 Airflow rate (m /min) Airflow rate (m /min) PEH-P20MYA PEH-P16MYA 0.25 0.25 0.15 0.15 0.05 0.05 Airflow rate (m /min) Airflow rate (m /min)

  • Page 26: Cooling Sensible Heating Capacity Table

    [3] Cooling Sensible Heating Capacity Table (1) PEH-P8MYA (Airflow rate 60m /min) Indoor inlet air temperature (DB/WB°C) Outdoor temp. 23/16 25/18 27/19 28/20 30/22 (°C) 18100 13700 19300 13500 20000 14400 20800 14400 21900 14200 17500 13400 18700 13300 13700...

  • Page 27: Airflow Characteristic Curves

    PEH-P20MYA Operating airflow range Operating airflow range Airflow rate (m /min) Airflow rate (m /min) [5] Center of Gravity (Indoor unit) • Models PEH-P8MYA/P10MYA Top of the unit unit : (mm) Center of gravity Item Model name PEH-P8MYA PEH-P10MYA –25–...
  • Page 28 • Models PEH-P16MYA/P20MYA unit : (mm) Center of gravity Item Model name PEH-P16MYA 1015 PEH-P20MYA –26–...

  • Page 29: Nc Curve (Indoor Unit)

    [6] NC Curve (Indoor unit) PEH-P8MYA Measurement condition External static pressure: 50Pa External static pressure: 150Pa NC60 Aux. duct NC50 NC40 Measured point NC30 Approximate minimum NC20 audible limit on continuous noise 1000 2000 4000 8000 OCTAVE BAND CENTER FREQUENCIES <Hz>...
  • Page 30 PEH-P16MYA Measurement condition External static pressure: 150Pa NC-70 Aux. duct NC-60 NC-50 NC-40 Measured point NC-30 NC-20 Approximate minimum audible limit on continuous noise 63Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz OCTAVE BAND CENTER FREQUENCIES <Hz> PEH-P20MYA Measurement condition External static pressure: 150Pa Aux.

  • Page 31: Service Data

    7 SERVICE DATA [1] Appearance of Equipment • PEH-P8MYA/P10MYA Electrical Parts Box (with cover removed) Terminal bed (remote controller transmission line) Indoor power board Indoor circuit board Terminal bed (indoor/outdoor connecting line) Terminal bed (power) Magnetic contactor (fan motor) Over current relay (fan motor) •...

  • Page 32: Internal Construction

    [2] Internal Construction • PEH-P8MYA/P10MYA (Indoor unit) Duct flange Refrigerant piping flange connection : LP A Refrigerant piping flare connection : HP B (for installation) Air filter Electrical parts box Drain pan Fan motor Sirrocco fan Heat exchanger Drian connection (R1) Model name 25.4...

  • Page 33: Function Of Switch On Indoor Circuit Board

    8 FUNCTION OF SWITCH ON INDOOR CIRCUIT BOARD [1] DIP SW1 for model Selection (DIP SW1 has been set at factory) PEH-P8MYA/P10MYA/P16MYA/P20MYA : SW1-1, -4 ON, SW1-2, -3, -5 OFF [2] DIP SW2 for Capacity Setting (DIP SW2 has been set at factory)

  • Page 34: Test Run

    9 Test run Before test run The test run can be carried out either from the outdoor unit or the indoor unit. 1. Check list • After the installation, piping setup,and wiring of the indoor and outdoor units is complete, check that refrigerant is not leaking, the power and control wires are not loose, and the poles are not reversed.
  • Page 35 • In the case of the test run, the OFF timer will activate, and the test run will automatically stop after two hours. • The room temperature display section shows the control temperature for the indoor units during the test run. •...

  • Page 36: Self-Diagnosis

    • When there is no error at the outdoor unit. (If there is an error at the outdoor unit, it can be evaluated at LED 1 [digital display] of the outdoor substrate.) • The stop valves are open both the liquid and gas sides. After checking the above, execute the test run in accordance with the following.
  • Page 37 (2) When there is no error history 1Hr. ßC CHECK CLOCK FILTER ßC CHECK MODE STAND BY INDOOR UNIT ERROR CODE FUNCTION DEFROST ADDRESS NO (3) When the address does not exist 1Hr. ßC CHECK CLOCK FILTER ßC CHECK MODE STAND BY INDOOR UNIT ERROR CODE...

  • Page 38: Remote Controller Diagnosis

    Remote controller diagnosis If operation cannot be carried out from the remote controller,use this function to diagnose the remote controller. 1. First, check the electricity current marker If the correct voltage (DC 12 V)is not displayed on the remote 1Hr. controller, the electric current marker will be lit.
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  • Page 42 The Air Conditioning & Refrigeration Systems Works acquired ISO 9001 certification under Series 9000 of the International Standard Organization (ISO) based on a review of quality warranties for the production of refrigeration and air conditioning equipment. ISO Authorization System The ISO 9000 series is a plant authorization system relating to quality warranties as stipu- lated by the ISO.

This manual is also suitable for:

Peh-p16myaPeh-p20myaPeh-p10mya

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