Related Manuals for Mitsubishi Electric PEH-P400MYA
Summary of Contents for Mitsubishi Electric PEH-P400MYA
- Page 1 Back to Index 2005 AIR-COOLED SPLIT-TYPE PACKAGED AIR CONDITIONERS TECHNICAL & SERVICE MANUAL <Indoor unit> Models HEAT PUMP PEH-P400MYA PEH-P500MYA For use with the R407C...
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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. • If a vacuum pump that is not equipped with a • A large amount of chlorine that may be contained in reverse-flow check valve is used, the vacuum pump the residual refrigerant and refrigerating machine oil oil may flow into the refrigerant cycle and cause the... -
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 “Sensor” indication Displayed when the remote controller sensor is used. Day-of-Week For purposes of this explanation, Shows the current day of the week. all parts of the display are shown as lit. During actual operation, only Time/Timer Display the relevant items will be lit. “Locked”...
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Page 12: Specifications
3 SPECIFICATIONS Specifications of air-source heat pump type packaged air conditioner (Ceiling concealed type indoor unit) PEH-P400MYA Model name Quantity Symbol Cooling Heating Capacity kcal/h 36,000 40,800 41.8 47.4 27 °C/19 °C 20 °C/– Indoor side Dry bulb temperature/wet bulb temperature... - Page 13 Specifications of air-source heat pump type packaged air conditioner (Ceiling concealed type indoor unit) Model name Quantity Symbol PEH-P500MYA Cooling Heating Capacity kcal/h 44,800 52,400 52.0 61.0 27 °C/19 °C 20 °C/– Indoor side Dry bulb temperature/wet bulb temperature Air con- dition 35 °C/24 °C 7 °C/ 6 °C...
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Page 14: Part Names And Functions
4 PART NAMES AND FUNCTIONS (1) Indoor Unit 1637 • Models PEH-P400MYA 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... - Page 15 • Models PEH-P500MYA 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 16 (2) Remote Controller • Models PAR-21MAA (Front view) (Side view) (Rear view) - 14 -...
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Page 17: Electrical Wiring Diagram
T B 3 6.SW2(*1) shows PEH-P500MYA setting. TB4-1 (POLAR) RETURN AIR POWER BOARD (No.1) (2 places) DUCT CN2S CNSK In case of PEH-P400MYA setting is 13.1V shown as below. T B 1 SUPPLY AIR TH1-2 TAB1 1 2 3 DUCT TH2-2 TH5-2... -
Page 18: Technical Data To Meet Lvd
6 TECHNICAL DATA TO MEET LVD [1] Capacity/Input Ratio against Changes in Room Airflow Rate • Models PEH-P400MYA 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-P500MYA... -
Page 19: Cooling Sensible Heating Capacity Table
[3] Cooling Sensible Heating Capacity Table (1) PEH-P400MYA (Airflow rate 140m /min) Indoor inlet air temperature (DB/WB°C) Outdoor temp. 23/16 25/18 27/19 28/20 30/22 (°C) 40000 31000 41600 30900 43800 30400 36200 29200 38600 28900 39000 30500 40600 30500 43000... -
Page 20: Center Of Gravity (Indoor Unit)
[5] Center of Gravity (Indoor unit) • Models PEH-P400MYA/P500MYA unit : (mm) Center of gravity Item Model name PEH-P400MYA PEH-P500MYA 1015 - 18 -... -
Page 21: Nc Curve (Indoor Unit)
[6] NC Curve (Indoor unit) PEH-P400MYA 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>... -
Page 22: Service Data
7 SERVICE DATA [1] Appearance of Equipment • PEH-P400MYA/P500MYA Electrical Parts Box (with cover removed) Indoor power board (No.2) Indoor circuit board (No.1) Indoor circuit board (No.2) Magnetic contactor (fan motor) Over current relay Terminal bed (fan motor) (remote controller... -
Page 23: Internal Construction
[2] Internal Construction • PEH-P400MYA/P500MYA (Indoor unit) Refrigerant piping connection (No.2) : øB Refrigerant piping connection (No.2) : øA Refrigerant piping connection (No.1) : øB Fan motor Heat exchanger Refrigerant piping connection (No.1) : øA Air filter (for installation) Sirrocco fan... -
Page 24: 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-P400MYA/P500MYA : SW1-1, -4 ON, SW1-2, -3, -5 OFF [2] DIP SW2 for Capacity Setting (DIP SW2 has been set at factory) -
Page 25: 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 26 6 Register a telephone number The telephone number of the repair shop, sales office, etc., to contact if an error occurs can be registered in the remote controller. The telephone number will be displayed when an error occurs. For registration procedures, refer Function selection of remote controller. Operation mode display “TEST RUN”...
- Page 27 2. Outdoor unit (1) Check Items • After installation of indoor and outdoor units,and piping and electric wiring work,check that the unit is free from leaks of refrigerant,loosened connections,and incorrect polarity. • Check that there is no negative phase and open phase. (The F1 message for negative phase and the F2 message for open phase will flash at LED 1 on the outdoor substrate.
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Page 28: Self-Diagnosis
[3] Self-diagnosis Retrieve the error history of each unit using the remote controller. Switch to the self check mode. Set the address or refrigerant address No. you want to self check. When the H [CHECK] button is pressed twice successively When the TEMP. -
Page 29: 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 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 Power mark wiring and the indoor unit. - Page 30 — MEMO — - 28 -...
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- Page 32 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.
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