Mitsubishi PEH series User Manual
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Mitsubishi PEH series User Manual

Mitsubishi PEH series User Manual

Peh series air-cooled split-type ducted air conditioners, heat pump
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AIR-COOLED SPLIT-TYPE DUCTED AIR CONDITIONERS
DATA BOOK
PEH
Series :
HEAT PUMP : Model PEH-7, 8, 10MYB

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  • Page 1 AIR-COOLED SPLIT-TYPE DUCTED AIR CONDITIONERS DATA BOOK Series : HEAT PUMP : Model PEH-7, 8, 10MYB...

  • Page 3: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS ----------------------------------------------2 LINE UP --------------------------------------------------------------------4 MODEL-DESIGNATION BREAKDOWN----------------------------5 SPECIFICATIONS -------------------------------------------------------6 ELECTRICAL DATA------------------------------------------------------7 SELECTION PROCEDURE -------------------------------------------8 CAPACITY TABLES ----------------------------------------------------10 OPERATION RANGE--------------------------------------------------19 FAN PERFORMANCE-------------------------------------------------20 SOUND DATA------------------------------------------------------------21 OUTLINE DIMENSIONS----------------------------------------------22 CENTER OF GRAVITY (Outdoor unit) ----------------------------24 WIRING DIAGRAMS---------------------------------------------------25 REFRIGERANT SCHEMATICS-------------------------------------28 SAFETY & CONTROL DEVICES ----------------------------------29 OPTION -------------------------------------------------------------------30 INSTALLATION ----------------------------------------------------------31 TEST RUN----------------------------------------------------------------45...

  • Page 4: Safety Precautions

    1.1. Before installation and electric work - If the pressure switch, thermal switch, or other protection device is shorted and operated forcibly, or parts other than those specified by Mitsubishi Elec- s Before installing the unit, make sure you read all the “Safety tric are used, fire or explosion may result.

  • Page 5: Before Starting The Test Run

    • Remote controller is not allowed to install for the place where direct sunshine strikes. 1.4. Before starting the test run Caution: • Turn on the power at least 12 hours before starting operation. - Starting operation immediately after turning on the main power switch can result in severe damage to internal parts.

  • Page 6: Line

    LINE UP PEH-7MYB PEH-8MYB PEH-10MYB 18.8 22.0 28.8 Cooling capacity Btu/h 64,200 75,100 98,300 (gross) kcal/h 16,200 19,000 24,800 20.1 22.0 28.8 68,600 75,100 98,300 Btu/h Heating capacity 17,300 19,000 24,800 kcal/h Cooling: Indoor:27 CDB, 19 CWB; Outdoor: 35 CDB Heating: Indoor:20 CDB;...

  • Page 7: Model-Designation Breakdown

    MODEL-DESIGNATION BREAKDOWN P E H - 10 M Y B -EU Service reference Design Sequence Electrical Supply Y = 3 phase 380~415V 50Hz 4 wires In case of PEH-7, 8 Indoor unit Y = 1 phase 220~240V 50Hz 2 wires Compressor Horsepower 7 = 7 HP 8 = 7.5 HP...

  • Page 8: Specifications

    SPECIFICATIONS PEH-7~10MYB PEH-10MYB Model name PEH-7MYB PEH-8MYB PEH-7MYB-EU PEH-8MYB-EU PEH-10MYB-EU Service reference indoor Power supply ~ 220~240V 50Hz ~ 220~240V 50Hz 3N~ 380~415V 50Hz outdoor 3N~ 380~415V 50Hz 3N~ 380~415V 50Hz 3N~ 380~415V 50Hz Total cooling capacity 18.8 22.0 28.8 (Gross) 64,200 75,100...

  • Page 9: Electrical Data

    ELECTRICAL DATA PEH-7,8,10MYB Cooling PEH-7MYB PEH-8MYB PEH-10MYB VOLT ITEM PUH-7MYF PUH-8MYF PUH-10MYF TOTAL INPUT 10.9 TOTAL RUN CURRENT 15.0 18.0 19.5 PEH-7,8 POWER FACTOR 240V START CURRENT 69.0 71.0 77.0 COMPRESSOR INPUT 6.31 7.51 9.55 RUN CURRENT 11.5 13.5 16.9 PEH-10 INDOOR side External static pressure PUH-7~10...

  • Page 10: Selection Procedure

    SELECTION PROCEDURE 1. Model Selection (With actual examples) First step, to select the approximate model: Based on the cooling load and the cooling capacity listed in the capacity table, select the applicable model. Second step, to select the model: To select the model, the following conditions must be known: (1) Total cooling load or sensible cooling load (2) Indoor conditioned temperature (WB*1, DB) (3) Designed outdoor temperature (DB)*2...
  • Page 11 (Step-3) Calculation of net capacity Based on the indoor conditioned temperature (WB,DB), designed outdoor temperature (DB), and the actual air flow obtained in Step-2, obtain the gross capacity from the gross capacity tables (pages 10, 11, 13, 14, 16, 17). Then, calculate the net capacity from the formula below by using the fan motor input obtained in Step-2.

  • Page 12: Capacity Tables

    CAPACITY TABLES - 10 -...
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  • Page 21: Operation Range

    OPERATION RANGE The range of working temperatures is as below. Make sure which unit you are using and confirm the range of application. Heating Cooling Range for Range for continuous operation continuous operation Indoor temp.(˚CWB) Indoor temp.(˚CDB) Note: Caution: As an applicable humidity outside standard for both indoors and outdoors, we The use of your air conditioner recommend use within a range of 35-80% relative humidity.

  • Page 22: Fan Performance

    FAN PERFORMANCE PEH-7MYB Fan Performance Curve 50Hz (Pa) Recommended Range Fan speed (rpm) 1400 1300 For Hi speed operation line 1200 1100 For Low speed operation line 1000 (CMM) 1,000 1,083 1,167 1,250 (L/S) Air flow factory pre setting ESP = 125Pa PEH-10MYB PEH-8MYB Fan Performance Curve...

  • Page 23: Sound Data

    SOUND DATA Indoor units Sound Levels OCTAVE BAND FREQ. Hz MODEL dB(A) 63Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz PEH-7MYB 42.5 31.5 PEH-8MYB 32.5 43.5 PEH-10MYB 62.5 58.5 59.5 43.5 Outdoor units Sound Levels OCTAVE BAND FREQ. Hz MODEL dB(A) 63Hz 125Hz...

  • Page 24: Outline Dimensions

    OUTLINE DIMENSIONS (unit; mm) *Except: Drain size (unit; inch) PEH-7,8MYB 1102 24-ø3.1 HOLES AIR INLET DUCT FLANGE CONTROL BOX 1280 22-ø3.1 HOLES 4-ø12 HOLES AIR OUTLET DUCT (FOR HUNGING FLANGE BOLT M10) AIR INLET SENSOR 1380 <FIELD SUPPLY> REFRIGERANT PIPE 1320 ø25.4(1 BRAZE) 1240...
  • Page 25 PUH-7,8,10MYF (Standard) AIR INLET 1212 AIR INLET AIR OUTLET 4-ø15 HOLES DETAIL A (HUNGING) 1212(BOLT PITCH) 4-10X20 HOLES 1180 1180 (FOR MOUNTING ANCHOR BOLT M8) <FIELD SUPPLY> 1212 DETAIL B CONTROL REFRAIGERANT PIPE <FIELD SUPPLY> ø15.88(5/8 FLARE) REFRAIGERANT PIPE <FIELD SUPPLY> 7,8MYF:ø25.4(1 FLANGE) WIRING HOLE 10MYF:ø28.6(1-1/8 FLANGE)

  • Page 26: Center Of Gravity (Outdoor Unit)

    CENTER OF GRAVITY (Outdoor unit) (1) Caution for lifting G : Center of gravity Item Center of gravity(mm) Net weight (kg) Model name PUH-7MYF PUH-8MYF PUH-10MYF - 24 -...

  • Page 27: Wiring Diagrams

    WIRING DIAGRAMS PEH-7,8MYB REMOTE CONTROLLER REMOTE CONTROLLER BOARD CIRCUIT BREAKER (FIELD SUPPLY) PEH-7,8MYB-EU :15A X2-1 POWER SUPPLY X1-1 BROWN 220/230/240V BLUE 50HZ 5 4 3 2 1 INDOOR CN2L CONTROLLER BOARD CN41 4 3 2 1 CN22 CN32 CN29 CN21 CN90 INLET LED1...

  • Page 28: Remote Controller

    PEH-10MYB REMOTE CONTROLLER REMOTE CONTROLLER BOARD Attach the accessory Remove CIRCUIT BREAKER (FIELD SUPPLY) PEH-10MYB-EU :15A POWER SUPPLY WHITE 3N~PE This circuit diagram shows connections. BLACK 380/400/415V 50HZ (If the external static pressure is less than 30 pa, change to connections.) INDOOR CN2L...
  • Page 29 PUH-7,8,10MYF ( 1) ( 1) CNVMNT CNMNT CN40 CN23 (3P) (3P) (5P) (2P) (6P) (2P) (2P) CN3D (3P) CN22 (3P) ( 3) CN3S (3P) (3P) (3P) (3P) (3P) CN21 (3P) 63H1 CN3N (3P) CN26 (5P) 2 OFF 63H2 CN24 (3P) CN25 (3P) CN27...

  • Page 30: Refrigerant Schematics

    REFRIGERANT SCHEMATICS PEH-7,8,10MYB PUH-7,8,10MYF INDOOR Sensor Inlet air OUTDOOR (TH6) Heat exchanger Sensor Extension pipe (TH4) (Field supply) (21S4) 4-Way Sensor Sensor Condensing, valve Service Evaporating Condensing, port High Temp. Evaporating Heat exchanger pressure Sensor Temp. (TH5) Strainer switch (TH1) (TH3) Check (63H1) (63H2)

  • Page 31: Safety & Control Devices

    SAFETY & CONTROL DEVICES PEH-7,8,10MYB PUH-7,8,10MYF PEH-7MYB PEH-8MYB PEH-10MYB ITEM PUH-7MYF PUH-8MYF PUH-10MYF COMPRESSOR OVER CURRENT RELAY 19.0A 22.0A 31.0A COMPRESSOR INTERNAL THERMOSTAT 5 C off 83 11 C on HIGH PRESSURE SWITCH MPa off -0.15 INDOOR FAN MOTOR OVER CURRENT RELAY 6.2A INDOOR FAN MOTOR INTERNAL THERMOSTAT 150 5...

  • Page 32: Option

    OPTION PEH-7MYB PEH-8MYB PEH-10MYB ITEM PUH-7MYF PUH-8MYF PUH-10MYF OUTDOOR UNIT AIR OUTLET GUIDE PAC-207FG M-NET ADAPTOR PAC-SF48MA-E 1 : Outdoor unit with air outlet guide is special order in some customers. - 30 -...

  • Page 33: Installation

    INSTALLATION 1 1 1 1 1 . Indoor unit 1 1 1 1 1 -1. Accessory The unit is provided with the following accessory: [Fig. 1 1 1 1 1 -1.0.1] A Air outlet B Remote controller (accessary) 1 1 1 1 1 -2. Selecting an installation site •...

  • Page 34: Fixing Hanging Bolts

    1 1 1 1 1 -3. Fixing hanging bolts 1 1 1 1 1 -3.1. Fixing hanging bolts [Fig. 1 1 1 1 1 -3.1.1] (Use M10 hanging bolts. The bolts should be supplied in the field.) (Give site of suspension strong structure.) A Ceiling board Hanging structure B Edge beam...

  • Page 35: Refrigerant Pipe And Drain Pipe Specifications

    s Use the gage supplied with the panel to confirm that the unit body and 1 1 1 1 1 -4.2. Confirming the unit’s position and fixing hang- hanging bolts are positioned in place. If they are not positioned in place, ing bolts it may result in dew drops due to wind leak.

  • Page 36: Additional Refrigerant Charge

    Caution: PEH-7, 8MYB PEH-10MYB • Use refrigerant piping made of C1220 (CU-DHP) phosphorus deoxidized Piping Method Brazing Brazing copper as specified in the JIS H3300 “Copper and copper alloy seamless Height Difference between pipes and tubes”. In addition, be sure that the inner and outer surfaces of 30 m or less 30 m or less Indoor and Outdoor Units...
  • Page 37 1 Pull out the sensor, and remove the sensor fixture. [Fig. 1 1 1 1 1 -7.0.3] 2 Connect the inlet duct. PEH-10 1302 PEH-7,8 1102 PEH-10 66 3 Drill a sensor hole (ø12.5 dia.) on the side on the duct. PEH-7,8 31 4 Assemble the sensor and fixiture.
  • Page 38 Caution: 1 1 1 1 1 -8.2. Connecting procedures • Do not move the screwdriver while inserting the tip far into the latches to • The remote controller cord may be extended up to 500 m. Since the remote prevent broken latches. controller cord supplied with the unit is 10 m-long, use those electric wires or •...
  • Page 39 4 Setting the refrigerant address/unit number [Fig. 1 1 1 1 1 -8.4.2] Press the E MODE button to designate the refrigerant address/unit number. [- -] will flash in the mode number ⁄ display momentarily. 1Hr. If [88] appears in the room temperature section, the selected refrigerant ON OFF ˚C CLOCK...
  • Page 40 Other function selections Now that you know how to change the power voltage setting, there are several other settings that can be changed as well. The following Table lists the various settings that can be changed through the remote controller and the default settings of the various units. Table 1 Function Settings...

  • Page 41: Electrical Wiring

    Use as many metal pipes as possible to insert the cables into them for protection. NV is a product name of MITSUBISHI. 6. Never connect the power cable to leads for the transmission cables. Otherwise •...

  • Page 42: Confirmation Of Parts Attached

    2 2 2 2 2 . Outdoor unit 2 2 2 2 2 -1. Confirmation of parts attached 1 Connecting pipe 1 (Connecting pipe is attached in front of compressor.) Packing (inside ø23, outside ø35) 2 2 2 2 2 -2. Space required around unit [Fig.

  • Page 43: Refrigerant Piping Installation

    2 2 2 2 2 -5. Refrigerant piping installation 8 Always use a non-oxidizing brazing material for brazing the parts. If a non- Flare connection must be applied to the indoor unit and liquid piping of the outdoor unit, whilst flange connection must be applied to the gas piping of the outdoor unit. oxidizing brazing material is not used, it could cause clogging or damage to For the branching, brazing connection must be applied.
  • Page 44 A Valve stem [Fig. 2 2 2 2 2 -6.2.3] [Fully closed at the factory, when connecting the piping, when evacuating, and when charging additional refrigerant. Open fully after the operations above are completed.] B Stopper pin [Prevents the valve stem from turning 90 or more.] C Packing (Accessory) [Manufacturer: Nichiasu corporation] [Type: T/#1991-NF]...

  • Page 45: Thermal Insulation Of Refrigerant Piping

    2 Evacuation Note: Evacuate with the ball valve of the outdoor unit closed and evacuate both the • When using polyethylene cover as covering material, asphalt roofing shall connection piping and the indoor unit from the service port provided on the ball not be required.
  • Page 46 2 2 2 2 2 -7.2. Wiring and fitting capacities • Vinyl cab tire flat cord: VCTFK • Vinyl insulating vinyl sheath cable flat type: VVF <PUH> • Vinyl insulating vinyl sheath cable for control: CVV Main power supply wire thickness and switch capacities. •...

  • Page 47: Test Run

    TEST RUN 1.1. Before test run Operating procedures 1 Turn on the main power supply The test run can be carried out either from the outdoor unit or the indoor unit. While the room temperature display on the remote controller reads “CENTRALLY 1.
  • Page 48 2) Outdoor unit [Fig. 1.3.1] 1) Check Items 1Hr. ON OFF ˚C • After installation of indoor and outdoor units, and piping and electric wiring CHECK CLOCK FILTER work, check that the unit is free from leaks of refrigerant, loosened connec- ˚C CHECK MODE tions, and incorrect polarity.

  • Page 49: Remote Controller Diagnosis

    5 Canceling self-diagnosis 1 First, check the electricity current marker The following two methods can be used to cancel self-diagnosis. If the correct voltage (DC 12 V) is not displayed on the remote controller, the electric current marker will be lit. Press the CHECK button twice within three seconds to cancel self-diagnosis.

  • Page 50: Standard Operation Data

    STANDARD OPERATION DATA (1) PEH-7MYB/PUH-7MYF Operation condition Cooling Heating Voltage Power source frequency Indoor air conditioning (DB/WB) ˚C 27/19 27/19 27/19 20/- 20/- 20/- Outdoor air conditioning (DB/WB) ˚C 35/24 35/24 35/24 Piping length Refrigerant charge Total current 12.2 12.1 12.0 11.3 11.3...

  • Page 51: Service Data

    SERVICE DATA 1 CONTROL [1] Composition of Control 1 Function block diagram Compressor Magnetic Over current contractor relay 380/400/415 V 50 Hz Fuse outdoor Fuse Transformer Fuse 4-way valve, DC5V for Semiconductor solenoid valve, microcomputer relay crankcase heater Communication circuit Fan control Outdoor fan DC/DC...
  • Page 52 [2] Control specifications (1) Protection functions 1) The main protection devices for the outdoor unit are: 1 High pressure protection (63H1) 2 Compressor overcurrent protection (51C) 3 Liquid temp thermistor trouble (TH1) = > 4 Discharge temperature protection (TH2 135 C) 5 Discharge temp thermistor trouble (TH2) 6 Condenser/evaporater temp thermistor trouble (TH3) 2) When tripping of a detection device is sensed, the check mode is entered and the compressor is stopped.
  • Page 53 (3) Fan control Controls the fan speed based on the piping temperature (TH1) to perform cooling at low outdoor temperatures and heating at high outdoor temperatures. 1) Control at cooling 1 When the compressor stops, the fan stops (fan output = 0 %). When the power is turned on, or when the compressor is restarted after it has been stopped for 30 minutes or longer, the piping temperature ( TH1) determines the fan output.
  • Page 54 2) Control at heating 1 When the compressor is stopped and during defrosting, the fan is stopped. 2 When the power is turned on, or when the compressor is restarted after being stopped for 30 minutes or longer, the piping temperature (TH1) determines the fan step. TH1 >...
  • Page 55 (5) Bypass solenoid valve control (SV1) 1) Control at cooling 1 While the compressor is stopped, the solenoid valve is OFF. 2 When the power is turned on, or when the compressor is restarted after it has been stopped for 30 minutes or longer, if the liquid temperature (TH1) in 25 C or higher then the solenoid valve turns ON for 2 minutes.
  • Page 56 [3] Function of switches and connectors (outdoor unit) (1) Function of switches 1) Function of switches (Normal mode) Normal mode SW3 = Unrelated Operation by switch operation Kind of Switch effec- Switch Pole Function switch tive timing None – – –...
  • Page 57 <Outdoor unit operation monitoring function> The operation status and check code contents can be ascertained by means of the 2-digit number and symbol on digital display light emitting diode LED2 by operating DIP switch SW2. <Description of operation of digital display light emitting diode (LED2)> •...
  • Page 58 Self diagnosis by SW2 • PUH-7, 8, 10MYF SW2 setting Display contents Description of display Unit Liquid temperature –39 - 88 (TH1) (When 0 C or lower, “–”and temperature are displayed –39 - 88 alternately.) 1 2 3 4 5 6 <Example>...
  • Page 59 SW2 setting Display contents Description of display Unit Newest check code When no check mode,“00” Newest outdoor unit <Example> When piping thermistor abnormal U4 abnormality 1 2 3 4 5 6 Code display Check display Operation mode when Operation mode when abnormally stopped abnormality occurred <Example>...
  • Page 60 SW2 setting Display contents Description of display Unit Outdoor unit set Outdoor unit capacity is displayed as function code. information 1 Model name function code 1 2 3 4 5 6 PEH-7 Code display PEH-8 PEH-10 Outdoor unit set Outdoor unit set information 1 Function setting (display valves) information 2 3-phase power source detection Do...
  • Page 61 SW2 setting Display contents Description of display Unit Control mode display system Indoor unit control status Indoor 1, 2 1 2 3 4 5 6 – Indoor unit No.2 Indoor unit No.1 Indoor unit No.4 Indoor unit No.3 Control mode Display Indoor unit Outdoor unit...
  • Page 62 SW2 setting Display contents Description of display Unit Communication de- 0 - 255 mand capacity When communication demand not set: 100 % 0 - 255 (When 100 or higher, 100s digit and 10s and units digits 1 2 3 4 5 6 are displayed alternately.) <Example>...
  • Page 63 SW2 setting Display contents Description of display Unit Thermostat ON time up 0 - 999 to abnormal stop (When 100 or higher, 100s digit and 10s and units digits 0 - 999 are displayed alternately.) 1 2 3 4 5 6 Minutes <Example>...
  • Page 64 [4] Simple parts check method Part name Judgment instructions Thermistor (TH1) <Liquid Disconnect the connector and measure the resistance value with a multimeter. temperature detection> (Ambient temperature 10 C to 30 C) Thermistor (TH2) Normal Abnormal <Dischargetemperature TH1, 3 4.3 k ~9.6 k Open or short detection>...
  • Page 65 [5] Reference Data <Thermistor characteristic table> Low temperature thermistor Thermistor <Liquid temperature detection> (TH1) Thermistor <Condenser/evaporater temperature detection> (TH3) Thermistor <Liquid temperature detection> (TH1) <Low temperature thermistor> Thermistor <Condenser/evaporater temperature detection> (TH3) Thermistor Ro = 15 k B constant = 3,460 k Rt = 15 exp {3,460 (––––––...
  • Page 66 [6] Emergency operation 1) When the following check displays occur at the outdoor unit, or when the wired remote controller or indoor unit microcomputer fails, if there are no other defects, emergency operation is possible by shorting the connector (CN31) on the outdoor controller board.
  • Page 67 4) Emergency operation method * Before starting, recheck that the trouble allows Start emergency operation. Piping work complete? Check that mains power is OFF Turn on emergency operation switch (SWE) on indoor controller board Short CN31 (emergency operation connector) on outdoor controller board Set operation mode (cooling or heating) with SW4-2 on outdoor board (SW4-1 not used) OFF ON...
  • Page 68 [7] Self-diagnosis and troubleshooting <Abnormality detected at power on> Abnormal- Meaning of abnormality display and Cause Judgment method and remedy ity display abnormality troubleshooting 1 Voltage not applied to outdoor unit ter- minal block TB1. a. Check power supply circuit breaker. a.
  • Page 69 <Abnormality detected during unit operation: Outdoor unit> Abnormal- Meaning of abnormality display and Cause Judgment method and remedy ity display abnormality troubleshooting Discharge temperature abnormal 1 Compressor overheating due to insuf- 1 Check input super heat. When the discharge thermistor tem- ficient refrigerant.
  • Page 70 Abnormal- Meaning of abnormality display and Cause Judgment method and remedy ity display abnormality troubleshooting 1 Remote controller send/receive Remote controller communica- Perform remote controller diagnosis. tions receive abnormal (remote circuit faulty. Take the following action based on the di- controller).
  • Page 71 <Abnormality detected during unit operation: Indoor unit> Abnormal- Meaning of abnormality display and Cause Judgment method and remedy ity display abnormality troubleshooting Intake sensor abnormal 1 Thermistor characteristics faulty. 2 Connector contact faulty. 1) If thermistor open or short is de- Check thermistor resistance value tected and the compressor enters (Insertion faulty)
  • Page 72 <Abnormality detected during unit operation: Indoor unit> Abnormal- Meaning of abnormality display and Cause Judgment method and remedy ity display abnormality troubleshooting Freezing/excessive rise protection <Cool and dry> <Cool and dry> operation 1 Filter is clogged (insufficient air flow). 1 Check filter for clogging. 1) Freezing protection 2 Air duct short cycle.
  • Page 73 <Abnormality detected during unit operation: Indoor unit> Abnormal- Meaning of abnormality display and Cause Judgment method and remedy ity display abnormality troubleshooting Piping temperature abnormal 1 Indoor intake piping thermistor tem- 1 Operate in test run mode and check pip- <Cool>...
  • Page 74 <Troubleshooting and repair by symptom> Symptom and operation when normal Cause Symptom judgment and remedy 1. No remote controller display 1 DC14 V is not supplied to remote con- 1 Check LED2 on indoor controller board. troller. 1) Steady light (No power O display on liquid crystal Check remote controller wire open or faulty panel.)
  • Page 75 Symptom and operation when normal Cause Symptom judgment and remedy 1 Insufficient refrigerant. 1 - Since the discharge temperature rises when 7. Remote controller display is normal 2 Refrigerant piping heat insulation insuffi- and heating operation is performed there is leakage, judge by measuring the tem- cient.
  • Page 76 <Indoor/outdoor connection wire erroneous wiring and open symptoms> Indoor controller board Remote controller Outdoor controller Erroneous wiring contents Condition LED display Remarks display board LED display LED1 LED2 LED3 Outdoor Indoor side side Trial run “ ” Power Normal Flashing (relocation) supply mark wiring...

  • Page 77: Instructions For Use

    INSTRUCTIONS FOR USE 1. Check points for operation Check the following points before you operate your air conditioner. (1)Check that there is nothing blocking the flow of air from the air outlet into the air inlet. Indoor unit Inlet grille Outlet grille Ceiling Ceiling...

  • Page 78: Caution For Use

    2. Caution for use Keep the following points in mind to safeguard against failures and breakdowns. (1) This air conditioner does not restart within 3min. after shut 3 Minutes down.(These models have a crankcase heater in the Operation Shutdown compressor. If the air conditioner is shut down for a short time, please do not turn the power switch to OFF, but turn the operation switch to OFF.) (2) If the air conditioner is shut down by a power failure, set the...
  • Page 79 3.3 Cleaning the Outdoor Unit Heat Exchanger If you use your air conditioner for prolonged periods, the outdoor heat exchanger will become dirty, impairing its function and reducing air conditioners performance. Consult your equipment supplier or air conditioning contractor on how to clean the heat exchanger. 4.

  • Page 80: Disposing Of The Unit

    7. Transferring work, and construction 7.1 Transfer of installation 1. When removing and reinstalling the air conditioner when you enlarge your home, remodel, or move, consult with your dealer in advance to ascertain the cost of the professional engineering work required for transferring the installation.

  • Page 81: Specification Guidelines

    SPECIFICATION GUIDELINES Air to air reverse cycle split air conditioning system. The systems shall operate at out door ambient temperatures as high as __ ºC. The system shall have a total cooling capacity of __kW or greater with an indoor air quantity of __ L/s at __ ºC DB and __ ºC WB entering indoor coil temperature with a __ ºC temperature entering the outdoor coil.
  • Page 82 DATA BOOK PEH-MYB Issuued in Jan. 2003 MEE02K133-A New publication effective Jan. 2003. Printed in Japan. Specifications subject to change without notice.

This manual is also suitable for:

Peh-7mybPeh-8mybPeh-10myb

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