Related Manuals for Mitsubishi Electric City Multi PEFY-P06NMSU-E
Summary of Contents for Mitsubishi Electric City Multi PEFY-P06NMSU-E
- Page 1 2008 Air-Conditioners TECHNICAL & SERVICE MANUAL PEFY-P06NMSU-E, PEFY-P08NMSU-E Models PEFY-P12NMSU-E, PEFY-P15NMSU-E PEFY-P18NMSU-E, PEFY-P24NMSU-E For use with R410A & R22...
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Page 2: Safety Precautions
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. - Page 3 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.
- Page 4 Precautions for PAC-YU25HT (Optional parts) WARNING Stop the operation if any malfunction occurs. Keep the heater clean to keep the indoor unit from sucking in accumulated dust on the heater. If malfunction occurs (burning smell, etc.) stop the opera- tion and turn off the power supply. Contact your dealer or Dust particles that enter the indoor unit may cause fire.
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Page 6: Table Of Contents
CONTENTS I Features [1] Features............................ 1 II Components and Functions [1] Components and Functions...................... 2 III Specfications [1] Specifications..........................4 1.Specfications .......................... 4 2.Electrical component specifications..................6 IV Outlines and Dimensions [1] Outlines and Dimensions......................7 V Wiring Diagram [1] Wiring Diagram ......................... 8 VI Refrigerant System Diagram [1] Refrigerant system diagram...................... - Page 7 HWE08010...
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Page 8: I Features [1] Features
[ I Features ] I Features [1] Features Model Cooling capacity/Heating capacity BTU/h PEFY-P06NMSU-E 6000/6700 1.8/2.0 PEFY-P08NMSU-E 8000/9000 2.3/2.6 PEFY-P12NMSU-E 12000/13500 3.5/4.0 PEFY-P15NMSU-E 15000/17000 4.4/5.0 PEFY-P18NMSU-E 18000/20000 5.3/5.9 PEFY-P24NMSU-E 24000/27000 7.0/7.9 HWE08010 - 1 -... -
Page 9: Components And Functions
[ II Components and Functions ] II Components and Functions [1] Components and Functions 1. Indoor (Main) Unit 2. Remote Controller [PAR-21MAA] Once the operation mode is selected, the unit will remain in the selected mode until changed. (1) Remote Controller Buttons [Set Temperature] Button [Vane Control] Button [Timer Menu] Button... - Page 10 [ II Components and Functions ] (2) Remote Controller Display Current time/Timer time Louver swing Centralized control indicator Ventilation Timer OFF indicator Filter sign Timer mode Sensor position Operation mode display: COOL, DRY, AUTO, Room temperature FAN, HEAT Function Lock indicator Vane setting Preset temperature Fan speed...
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Page 11: Specfications
[ III Specfications ] III Specfications [1] Specifications 1. Specfications Model PEFY-P06NMSU-E PEFY-P08NMSU-E PEFY-P12NMSU-E PEFY-P15NMSU-E Power source 1-phase 208/230V 60Hz Cooling capacity BTU / h 6,000 8,000 12,000 15,000 (Nominal) Power input 0.05/0.05 0.06/0.06 0.07/0.07 0.07/0.07 Current input 0.42/0.41 0.51/0.49 0.56/0.53... - Page 12 [ III Specfications ] Model PEFY-P18NMSU-E PEFY-P24NMSU-E Power source 1-phase 208/230V 60Hz Cooling capacity BTU / h 18,000 24,000 (Nominal) Power input 0.09/0.09 0.12/0.12 Current input 0.74/0.70 0.98/0.93 Heating capacity BTU / h 20,000 27,000 (Nominal) Power input 0.07/0.07 0.10/0.10 Current input 0.64/0.60 0.88/0.83...
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Page 13: Electrical Component Specifications
[ III Specfications ] 2. Electrical component specifications Component Sym- PEFY-P06NMSU-E PEFY-P08NMSU-E PEFY-P12NMSU-E Room temperature TH21 Resistance 0°C[32°F]/15k , 10°C[50°F]/9.6k , 20°C[68°F]/6.3k , 25°C[77°F]/5.4k , thermistor 30°C[86°F]/4.3k , 40°C[104°F]/3.0k Liquid pipe thermistor TH22 Resistance 0°C[32°F]/15k , 10°C[50°F]/9.6k , 20°C[68°F]/6.3k , 25°C[77°F]/5.4k , 30°C[86°F]/4.3k , 40°C[104°F]/3.0k... -
Page 14: Outlines And Dimensions
[ IV Outlines and Dimensions ] IV Outlines and Dimensions [1] Outlines and Dimensions 1. PEFY-P06,08,12,15,18,24NMSU-E Unit : mm(in) HWE08010 - 7 -... -
Page 15: Wiring Diagram
[ V Wiring Diagram ] V Wiring Diagram [1] Wiring Diagram 1. PEFY-P06,08,12,15,18,24NMSU-E HWE08010 - 8 -... -
Page 16: Refrigerant System Diagram
[ VI Refrigerant System Diagram ] VI Refrigerant System Diagram [1] Refrigerant system diagram Gas pipe thermistor TH23 Gas pipe Liquid pipe Brazed connections Strainer (#100 mesh) Linear expansion valve Liquid pipe thermistor TH22 Heat exchanger Room temperature thermistor TH21 mm[in.] Capacity PEFY-P06,08,12,15NMSU-E... -
Page 17: Microprocessor Control
[ VII Microprocessor Control ] VII Microprocessor Control [1] Microprocessor Control 1. Cool operation <How to operate> 1. Press POWER [ON/OFF] button. 2. Press the operation [Mode] button to display COOL. 3. Press the [Set Temperature] button to set the desired tempera- ture. -
Page 18: Dry Operation
[ VII Microprocessor Control ] In the air : Detected that the float switch is OFF for 15 seconds. Float SW 15sec. 15sec. 15sec. 1min.30sec. 1min.30sec. Drain pump In the water In the air In the water Error postponement abnormal 2. -
Page 19: Fan Operation
[ VII Microprocessor Control ] Remote controller setting is not acceptable. 3. Drain pump (1) Same control as COOL operation 3. Fan operation <How to operate> 1. Press POWER [ON/OFF] button. 2. Press the operation [Mode] button to display FAN. TIME SUN MON TUE WED THU FRI SAT TIMER AFTER... -
Page 20: Heat Operation
[ VII Microprocessor Control ] 4. Heat operation <How to operate> 1. Press POWER [ON/OFF] button. 2. Press the operation [Mode] button to display HEAT. 3. Press the [Set Temperature] button to set the desired tempera- ture. TIME SUN MON TUE WED THU FRI SAT TIMER AFTER AFTER... -
Page 21: Auto Operation [Automatic Cool / Heat Change Over Operation]
[ VII Microprocessor Control ] This control is same for the model without auxiliary heater. (4) Thermo OFF mode When the thermoregulating function changes to OFF, the indoor fan operates in [Extra low]. (5) Heat defrosting mode The indoor fan stops. 3. -
Page 22: When Unit Is Stopped Control Mode
[ VII Microprocessor Control ] 4. HEAT mode (1) Same control as heat operation The value "3°F" is modifiable from 1.8°F to 9°F by maintenance tool. 6. When unit is stopped control mode 1. Drain pump (1) Drain pump control The drain pump turns ON for the specified amount of time when any of the following conditions is met: 1) ON for 3 minutes after the operation mode is switched from COOL or DRY to another operation mode (FAN). - Page 23 [ VII Microprocessor Control ] Table.2 Heater OFF Heater control #B Heater OFF Inlet air temp. set temp. Inlet air temp. set temp. Heater control #A Heater ON Heater ON Inlet air temp. < set temp.-4°F Inlet air temp. < set temp.-1.8°F Set temp.
- Page 24 [ VII Microprocessor Control ] Reference (not applicable to the ducted models) Pattern NON duct unit (PL/PK/PC) CN4Y for FAN control (YU25) *3 DIP S/W (Indoor unit) Fan in defrost Stop (Heater ON) *3 Refer to Section 5 "Dipswitch Setting" for further information about each switch. <Image>...
- Page 25 [ VII Microprocessor Control ] 2) PEFY-P-NMHU-E, PDFY-P-NMU-E and other models Indoor unit Outdoor unit Remote control board Relay circuit control board control board Adapter • PUHY, PURY-P- CN24 TGMU type Dip switch SW5-2 “ON” • PUHY, PURY-P- White YHMU type Dip CN22 switch SW5-10 White...
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Page 26: Troubleshooting
[ VIII Troubleshooting ] VIII Troubleshooting [1] Troubleshooting 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[50°F-86°F]) Normal Abnormal... - Page 27 [ VIII Troubleshooting ] 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 Brown...
- Page 28 [ VIII Troubleshooting ] 2) LEV operation Close Open Fully open valve (2000 pulses) No. of pulses Extra tightning (80 - 100 pulse) Valve opening degree When the power is turned on, a pulse signal of 2200 pulses is output (valve closure signal), to bring the valve to position A. When the valve is operating normally, it is free of vibration noise.
- Page 29 [ VIII Troubleshooting ] Symptom Checking Criteria Remedy 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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Page 30: Dc Fan Motor (Fan Motor/Indoor Control Board)
[ VIII Troubleshooting ] 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 (CNMF). Do not unplug the connector CNMF with the unit energized to avoid damage to the indoor control board and fan motor. 2. -
Page 31: Address Switch Setting
[ VIII Troubleshooting ] 3. Address switch setting Make sure that power to the unit is turned off. Indoor unit control board Factory setting (all models) 1. When using an ME remote controller, set the address with the rotary switches (SW11, SW12). Address setting is not required when the unit remote controller is used. -
Page 32: Voltage Test Points On The Control Board
[ VIII Troubleshooting ] 4. Voltage test points on the control board 1. PEFY-P06,08,12,15,18,24NMSU-E Fuse Fuse(AC 250V 6.3A) Fuse Power supply voltage (208 - 230VAC) CN2M For M-NET transmission cable connection (24 - 30VDC) Emergency operation Capacity setting Function setting CN42 For address board connection Function setting... -
Page 33: Dipswitch Setting (Factory Setting)
Sub cool setting tempurature*1 *1 Please don't use SW3-9,10 as trouble might be caused by the usage condition. 1) Indoor control board Dipswitch settings must be made while the unit is stopped. Factory setting PEFY-P06NMSU-E PEFY-P08NMSU-E PEFY-P12NMSU-E PEFY-P15NMSU-E PEFY-P18NMSU-E PEFY-P24NMSU-E... - Page 34 2. Capacity code setting (1) SW2 1) Indoor control board Dipswitch settings must be made while the unit is stopped. Factory setting The switches are set to correspond to the unit capacity. PEFY-P06NMSU-E PEFY-P08NMSU-E PEFY-P12NMSU-E PEFY-P15NMSU-E PEFY-P18NMSU-E PEFY-P24NMSU-E 3. Model setting...
- Page 35 [ VIII Troubleshooting ] 6. Connection No. setting (1) SW14 (Rotary switch) This switch is used when the unit connected to an R2 series of outdoor unit. 1) Address board Factory setting Note: Changes to the dipswitches SW11, SW12, SW14, and SW15 must be made while the unit is stopped and the remote controller is OFF.
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Page 36: Disassembly Procedure
[ IX Disassembly Procedure ] IX Disassembly Procedure [1] Disassembly Procedure 1. Control box Exercise caution when removing heavy parts. 1. Removing the control box cover (1) Remove the two fixing screws on the cover (A) to remove Fig.1 Fig.2 HWE08010 - 29 -... -
Page 37: Thermistor (Intake Air)
[ IX Disassembly Procedure ] 2. Thermistor (Intake air) Exercise caution when removing heavy parts. 1. Remove the control box cover according to the procedure in section [1]. 2. Remove the thermistor. (1) Remove the two fixing screws on the metal base (B) to re- move it. -
Page 38: Drainpan
[ IX Disassembly Procedure ] 3. Drainpan Exercise caution when removing heavy parts. 1. Removing the filter and the bottom plate (1) Push down the tab on the filter, and pull out the filter in the direction of the arrow 1. (2) Remove the fixing screws on the bottom plate (D), (E) to remove it. -
Page 39: Thermistor (Gas Pipe) (Liquid Pipe)
[ IX Disassembly Procedure ] 4. Thermistor (Gas pipe) (Liquid pipe) Exercise caution when removing heavy parts. 1. Remove the drain pan according to the procedure in sec- tion [1]. 2. Removing the Heat exchanger cover (1) Remove the four fixing screws on the heat exchanger cov- er (F) to remove it. -
Page 40: Fan And Fan Motor
[ IX Disassembly Procedure ] 5. Fan and fan motor Exercise caution when removing heavy parts. 1. Removing the filter and the bottom plate (1) Push down the tab on the filter, and pull out the filter in the direction of the arrow 1. (2) Remove the fixing screws on the bottom plate (J) to re- move it. -
Page 41: Bearing
[ IX Disassembly Procedure ] 6. Bearing P15, P18, P24 models only. Exercise caution when removing heavy parts. 1. Removeing the bearing (1) Remove the two fixing screws on the bearing cover (M) to remove it. Fig.14 (2) Remove the two bearing retainer screws to remove the bearing. -
Page 42: Heat Exchanger
[ IX Disassembly Procedure ] 7. Heat exchanger Exercise caution when removing heavy parts. 1. Remove the drain pan according to the procedure in section [1]. 2. Remove the heat exchanger cover according to the proce- dure in section [4] 2. 3. - Page 43 Jul. 2008 HWE08010 New publication, effective Jul. 2008 Printed in Japan Specifications subject to change without notice...