Summary of Contents for Mitsubishi Electric CITY MULTI PEFY-P40VMHS-E
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AIR CONDITIONERS 2017 TECHNICAL & SERVICE MANUAL Series PEFY Ceiling Concealed Model name Model name <Indoor unit> <Indoor unit> PEFY-P40VMHS-E, PEFY-P50VMHS-E PEFY-P63VMHS-E, PEFY-P71VMHS-E PEFY-P80VMHS-E, PEFY-P100VMHS-E PEFY-P125VMHS-E, PEFY-P140VMHS-E Indoor unit...
Have all electrical work performed by an authorized electri- Only use accessories (i.e., air cleaners, humidifiers, electric cian according to the local regulations and the instructions heaters) recommended by Mitsubishi Electric. in this manual. Use a dedicated circuit. Insufficient power supply capacity or improper installation of the unit may result in malfunctions of the unit, electric shock, or fire.
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When installing the unit in a small space, take appropriate mended by Mitsubishi Electric may result in smoke, fire, or precautions to prevent leaked refrigerant from reaching the explosion.
PART NAMES AND FUNCTIONS 2-1. Indoor (Main) Unit Air outlet Air inlet...
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2-2. Remote Controller [PAR-32MAA] Once the operation mode is selected, the unit will remain in the selected mode until changed. (1) Remote Controller Buttons Function buttons The functions of the function buttons change depending on the screen. Refer to the button function guide that appears at the bottom of the LCD for Press to turn ON/OFF the indoor unit.
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(2) Remote Controller Display The main display can be displayed in two different modes: "Full" and "Basic." The factory setting is "Full." To switch to the "Basic" mode, change the setting on the "Main display" setting screen (Main menu > Initial setting > Main display).
TROUBLE SHOOTING 7-1. Check methods 1. Component and check points (1) Thermistor Room temperature thermistor (TH21) Liquid pipe thermistor (TH22) Gas pipe thermistor (TH23) Disconnect the connector and measure the resistance between terminals with a tester. (Ambient temperature 10°C - 30°C) Normal Abnormal 4.3k...
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1) Summary of linear expansion valve (LEV) operation The LEV is operated by a stepping motor, which operates by receiving a pulse signal from the indoor control board. The LEV position changes in response to the pulse signal. Indoor control board and LEV connection 12VDC Control board Blue...
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2) LEV operation Close Open Fully open valve (2000 pulses) No. of pulses Extra tightening (41 pulses) Valve opening degree When the power is turned on, a pulse signal of fully open pulse + 10% pulse is output (valve closure signal), to bring the valve to position A.
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Valve closure fail- To check the LEV on the indoor unit, check the indoor unit liquid pipe temperature Replace the LEV ure (leaky valve) that appears on the operation monitor on the outdoor unit's multi control board while if the amount of operating the indoor unit in question in the FAN mode and the other indoor units in leakage is great.
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7-2. DC fan motor (fan motor/indoor control board) 1. CAUTION A high voltage is applied to the connector for connection to the fan motor (CNMF1). Do not unplug the connector CNMF1 with the unit energized to avoid damage to the indoor control board and fan motor. 2.
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7-3. Setting of address switch Make sure that power source is turning off. Indoor unit control board Incase using network remote controller, address is set by rotary switches.(SW11,SW12) * It is not necessary setting address in case of using unit remote controller. Indoor unit do not run without address setting in field.
DISASSEMBLY PROCEDURE Be careful on removing heavy parts. 8-1. CONTROL BOX FIGURES OPERATING PROCEDURE 1.Removing the control box cover Fig.1 (1) Remove the fixing screws (three) of the control box (A), and Fixing screws remove the cover.(Fig.1) *At this stage, the following servicing is possible. (Fig.2) 1 Operation and check of the switches (listed below) which are on the control board.
Be careful on removing heavy parts. 8-2. FAN and FAN MOTOR FIGURES OPERATING PROCEDURE Fig.1 1. Remove the control box cover according to the procedure in section 8-1. CONTROL BOX. Connector CNMF1 2. Removing the fan motor cable (1) Disconnect the connector (CNMF1) from the control board. (2) Remove the cable through the rubber bush.
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Be careful on removing heavy parts. FIGURES OPERATING PROCEDURE Fig.4 6. Precautions for reinstalling the removed motor in its Stamp original position (1) P40-80 Fix the motor in place so that the stamp printed on the motor faces front when viewed from the air inlet. (Fig.4) Fig.5 (2) P100-140 Fix the motor in place so that the protruding portion...
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Be careful on removing heavy parts. 8-3. LEV,THERMISTOR (Liquid/Gas piping temperature detection) FIGURES OPERATING PROCEDURE Fig.1 1.Removing the LEV. (1) Remove the control box cover with procedure 8-1. (2) Remove the fixing screws (five) of the heat exchanger cover (A),and remove the cover (A).(Fig.1) (3) Remove the LEV driving motor.(Fig.2) 2.Removing the thermistors.
Be careful on removing heavy parts. 8-4. HEAT EXCHANGER FIGURES OPERATING PROCEDURE Fig.1 1.Removing the heat exchanger. (1) Remove the heat exchanger cover with procedure 8-3-1. (2) Remove the bottom plate which is air outlet side. (fixing Bottom plate screws : twelve) (Fig.1) (3) Remove the drainpan.(Fig.2) (4) Remove the cover (A), (B).
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Be careful on removing heavy parts. FIGURES OPERATING PROCEDURE (5) Remove the maintenance cover. (fixing screws : four) (Fig.5) Fig.4 (6) Remove the heat exchanger. (fixing screws : four) (Fig.4,6) *Removerd heat exchanger is as shown Fig.7 Fixing screws Fig.5 Maintenance cover Fixing screws Fig.6...
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8-5. CONTROL BOX INSIDE LAYOUT Diode bridge AC reactor Power source Transmission terminal bed terminal bed...
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8-6. SENSOR POSITION PEFY-P100VMHS-E PEFY-P40,50,63VMHS-E Gas sensor Gas sensor Liquid sensor Liquid sensor PEFY-P71,80VMHS-E PEFY-P125VMHS-E Gas sensor Gas sensor Liquid sensor Liquid sensor PEFY-P140VMHS-E Gas sensor Liquid sensor...
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www.MitsubishiElectric.com New publication effective Oct. 2017 Specifications subject to change without notice HWE17060...