2008 Air-Conditioners TECHNICAL & SERVICE MANUAL Models PEFY-P06NMSU-E, PEFY-P08NMSU-E PEFY-P12NMSU-E, PEFY-P15NMSU-E PEFY-P18NMSU-E, PEFY-P24NMSU-E For use with R410A & R22
Safety Precautions Read before installation and performing electrical work Thoroughly read the following safety precautions prior to installation. Observe these safety precautions for your safety. This equipment may have adverse effects on the equipment on the same power supply system. Contact the local power authority before connecting to the system. Symbol explanations WARNING This symbol indicates that failure to follow the instructions exactly as stated poses the risk of serious injury or death.
WARNING Keep electrical parts away from water. Consult your dealer or a qualified technician when moving or reinstalling the unit. Wet electrical parts pose a risk of electric shock, smoke, or fire. Improper installation may result in water leakage, electric shock, or fire. Securely attach the control box cover. After completing the service work, check for a refrigerant leak. If the cover is not installed properly, dust or water may infiltrate and pose a risk of electric shock, smoke, or fire.
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 operation and turn off the power supply. Contact your dealer or technical representative. If the controller continues to operate after a malfunction occurs, this may cause damage, electric shock or fire. Dust particles that enter the indoor unit may cause fire.
HWE08010 iv GB
CONTENTS I Features [1] Features.................................................................................................................................... 1 II Components and Functions [1] Components and Functions...................................................................................................... 2 III Specfications [1] Specifications............................................................................................................................ 4 1.Specfications ...
HWE08010 GB
[ I Features ] I Features [1] Features Model HWE08010 Cooling capacity/Heating capacity BTU/h kW 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.
[ II Components and Functions ] II Components and Functions [1] Components and Functions 1. Indoor (Main) Unit (A) (A) Air (A) 2. Remote Controller [PAR-21MAA] Once the operation mode is selected, the unit will remain in the selected mode until changed.
[ II Components and Functions ] (2) Remote Controller Display A Current time/Timer time I Louver swing B Centralized control indicator J Ventilation C Timer OFF indicator K Filter sign D Timer mode L Sensor position E Operation mode display: FAN, HEAT M Room temperature F Function Lock indicator N Vane setting G Preset temperature O Fan speed H Power indicator HWE08010 COOL, DRY, AUTO, -3- GB
[ III Specfications ] III Specfications [1] Specifications 1. Specfications Model PEFY-P06NMSU-E PEFY-P08NMSU-E Power source PEFY-P12NMSU-E PEFY-P15NMSU-E 1-phase 208/230V 60Hz Cooling capacity *1 BTU / h 6,000 8,000 12,000 (Nominal) *1 kW 1.8 2.3 3.5 4.4 kW 0.05/0.05 0.06/0.06 0.07/0.07 0.07/0.07 A 0.42/0.41 0.51/0.49 0.56/0.53 0.57/0.55 6,700 9,000 13,500 17,000 Power input Current input 15,000 Heating capacity *2 BTU / h (Nominal) *2 kW 2.0 2.6 4.0 5.
[ III Specfications ] Model PEFY-P18NMSU-E PEFY-P24NMSU-E 18,000 24,000 Power source 1-phase 208/230V 60Hz Cooling capacity *1 (Nominal) *1 Power input Current input BTU / h kW 5.3 7.0 kW 0.09/0.09 0.12/0.12 A 0.74/0.70 0.98/0.93 20,000 27,000 Heating capacity *2 BTU / h (Nominal) *2 kW 5.9 7.9 Power input kW 0.07/0.07 0.10/0.10 Current input A 0.64/0.60 0.88/0.83 External dimension H x W x D in.
[ III Specfications ] 2. Electrical component specifications Component Symbol PEFY-P06NMSU-E Room temperature thermistor 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 , 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 Gas pipe thermistor TH23 Resistance 0°C[32°F]/15k , 10°C[50°F]/9.6k , 20°C[68°F]/6.3k , 25°C[77°F]/5.
57(2-1/4) 70 (2-25/32) 270 (10-21/32) 700 (27-9/16) 677 (26-21/32) 25(1) (35-7/16) (37-1/2) (39-5/16) (33-7/8) 1100 1152 1198 1060 PEFY-P24NMSU-E (43-5/16) (45-3/8) (47-3/16) (41-3/4) PEFY-P18NMSU-E B C D Model A 700 752 798 660 PEFY-P06,08,12NMSU-E (27-9/16) (29-5/8) (31-7/16) (26) PEFY-P15NMSU-E 900 952 998 860 11 9 7 E (26) 860 (23-5/8) (31-1/2) 1000 800 H 1060 (39-3/8) (47-1/4) (41-3/4) (31-1/2) (39-3/8) (33-7/8) 660 G 800 F 600 1000 1200 23 (29/32) 9 7 5 J L N 1039 990
HWE08010 6 5 4 9 0 1 2 3 SW1 SW5 8 7 4 3 2 1 6 5 4 9 0 1 2 3 -8- SYMBOL I.B. A.B. TB2 TB5 TB15 FUSE ZNR01,02 DSA X1 CN24 CN27 NAME Indoor controller board Address board Power source terminal bed Transmission terminal bed Transmission terminal bed Fuse AC250V 6.3A Varistor Arrester Aux. relay Connector (Heater) Connector (Damper) SYMBOL EXPLANATION 8 7 6 5 4 3 2 1 CN82 SW14 (Connection No.) SWC 0 EF 1 2 D 3 4 C B 5 A 9 8 76 SWA SWB CN43 SW12 SW11 (2nd digit) (1st digit) 8 7 A.B.
[ VI Refrigerant System Diagram ] VI Refrigerant System Diagram [1] Refrigerant system diagram (A) (B) (G) (D) (C) (H) (F) (E) (I) (A) Gas pipe thermistor TH23 (B) Gas pipe (C) Liquid pipe (D) Brazed connections (E) Strainer (#100 mesh) (F) Linear expansion valve (G) Liquid pipe thermistor TH22 (H) Heat exchanger (I) Room temperature thermistor TH21 (E) mm[in.] Capacity PEFY-P06,08,12,15NMSU-E PEFY-P18NMSU-E PEFY-P24NMSU-E Gas pipe ø12.7 [1/2] R410A: ø12.7 [1/2] R22: ø15.
[ VII Microprocessor Control ] VII Microprocessor Control [1] Microprocessor Control 1. Cool operation 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 temperature. TIME SUN MON TUE WED THU FRI SAT TIMER Hr ON AFTER AFTER OFF ERROR CODE ˚F˚C ˚F˚C TEMP. MENU PAR-21MAA MONITOR/SET The set temperature changes 2°F when the [Set Temperature] button is pressed one time.
[ VII Microprocessor Control ] In the air : Detected that the float switch is OFF for 15 seconds. Float SW ON OFF 15sec. 15sec. In the water 15sec. 1min.30sec. In the air In the water 1min.30sec. Drain pump abnormal Error postponement 2. Dry operation 1. Press POWER [ON/OFF] button. 2. Press the operation [Mode] button to display DRY. 3. Press the [Set Temperature] button to set the desired temperature.
[ VII Microprocessor Control ] Remote controller setting is not acceptable. 3. Drain pump (1) Same control as COOL operation 3. Fan operation 1. Press POWER [ON/OFF] button. 2. Press the operation [Mode] button to display FAN. TIME SUN MON TUE WED THU FRI SAT TIMER Hr ON AFTER AFTER OFF ERROR CODE FUNCTION FILTER ˚F˚C ˚F˚C WEEKLY SIMPLE AUTO OFF ONLY1Hr. TEMP. MENU BACK PAR-21MAA MONITOR/SET ON/OFF ON/OFF FILTER DAY CHECK TEST OPERATION CLOCK CLEAR 1.
[ VII Microprocessor Control ] 4. Heat operation 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 temperature. TIME SUN MON TUE WED THU FRI SAT TIMER Hr ON AFTER AFTER OFF ERROR CODE FUNCTION FILTER ˚F˚C ˚F˚C TEMP. MENU BACK MONITOR/SET PAR-21MAA The set temperature changes 2°F when the [Set Temperature] button is pressed one time. Heating 63 to 83°F. WEEKLY SIMPLE AUTO OFF ONLY1Hr.
[ 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. 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).
[ 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).
[ VII Microprocessor Control ] Table.2 Heater OFF Inlet air temp. set temp. Heater control #A Heater ON Inlet air temp. < set temp.-4°F Heater control #B Set temp. Set temp.-1.8°F Set temp.-4°F Inlet air temp. ON OFF Heater output Heater OFF Inlet air temp. set temp. Heater ON Inlet air temp. < set temp.-1.8°F Set temp. Set temp.-1.8°F Inlet air temp. ON OFF Heater output The value "4°F" is modifiable from 1.8°F to 9°F by maintenance tool.
[ VII Microprocessor Control ] Reference (not applicable to the ducted models) Pattern 1 NON duct unit (PL/PK/PC) CN4Y for FAN control (YU25) *3 DIP S/W (Indoor unit) Fan in defrost N/A N/A Stop (Heater ON) *3 Refer to Section 5 "Dipswitch Setting" for further information about each switch. CN4Y for FAN control (PAC-YU25HT) This is applicable only to the R410A series. Make the settings for the following dip switches on the indoor unit control board before switching on the power. 3.
[ VII Microprocessor Control ] 2) PEFY-P-NMHU-E, PDFY-P-NMU-E and other models Electric Heater power source Remote control board Relay circuit Indoor unit control board Adapter White 2 White 1 X X Electric Heater or panel heater 2 (applicable only when a panel heater is connected) CN22 Green 1 Yellow CN24 Red Dip switch SW3-2 “ON” Outdoor unit control board • PUHY, PURY-PTGMU type Dip switch SW5-2 “ON” • PUHY, PURY-PYHMU type Dip switch SW5-10 “ON” • PUMY series Dip switch SW4-4 “ON” Maxim
[ 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 4.3k Abnormal - 9.6k Open or short (Refer to the thermistor characteristic graph below.
[ 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.
[ VIII Troubleshooting ] 2) LEV operation (f) (a) (a) Close (b) Open (c) Fully open valve (2000 pulses) (d) No. of pulses (e) Extra tightning (80 - 100 pulse) (f) Valve opening degree (b) (c) (d) (e) 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.
[ VIII Troubleshooting ] Symptom Checking Criteria Remedy Valve closure failure (leaky valve) To check the LEV on the indoor unit, check the indoor unit liquid pipe temperature that appears on the operation monitor on the outdoor unit's multi control board while operating the indoor unit in question in the FAN mode and the other indoor units in the cooling mode. Replace the LEV if the amount of leakage is great.
[ 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. Troubleshooting Symptom: Indoor unit fan does not run. Check fan motor connector contact (CNMF). Is the fan motor connector (CNMF) fully inserted? Yes No Fix the connection.
[ VIII Troubleshooting ] 3. Address switch setting Make sure that power to the unit is turned off. (A) (B) ON OFF ON OFF 2 1 (A) Indoor unit control board (B) 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. On-site address setting is required for the indoor units to run. 2. Address settings vary in different systems.
[ VIII Troubleshooting ] 4. Voltage test points on the control board 1. PEFY-P06,08,12,15,18,24NMSU-E Fuse CND CNP С25(*1) CNMF C951(*1) PC941(*1) CN2M LED1 SWE SW2 CN3C CN20 SW4 CN24 CN42 CN4F SW3 CN44 Fuse Fuse(AC 250V 6.
[ VIII Troubleshooting ] 5. Dipswitch setting (Factory setting) 1.
[ VIII Troubleshooting ] 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 (1) SW4 1) Indoor control board Dipswitch settings must be made while the unit is stopped.
[ 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.
[ 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 it. (A) Fig.1 Fig.
[ 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 remove it. (B) Fig.3 (2) Pull out the thermistor holder (C) and thermistor (D) on the control box. (C), (D) Fig.
[ 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. (a) (a) (a) (a) (D) (E) Fig.5 2. Removing the drainpan (1) Pull out the drain pan in the direction of the arrow 1. Fig.6 Note Drain the water out of the drain pan before removing it.
[ 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 section [1]. 2. Removing the Heat exchanger cover (1) Remove the four fixing screws on the heat exchanger cover (F) to remove it. HEX (F) Fig.8 3. Removing the thermistor (1) Remove the thermistor (G) from the thermistor holder (H) on the copper tube. Thermistor size Liquid pipe: ø8mm Gas pipe: ø6mm (G), (H) Fig.
[ 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 remove it. (a) (a) (a) (a) (J) Fig.10 (a) Tab 2. Removing the punching metal (1) Remove the two fixing screws on the punching metal (K) to remove it. (a) 3.
[ 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. (M) Fig.14 (2) Remove the two bearing retainer screws to remove the bearing. Fig.
[ 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 procedure in section [4] 2. 3. Removing the cover (1) Remove the two fixing screws on the cover (T) to remove it. (T) Fig.16 (T) Pipe support plate 4. Removing the Heat exchanger (1) Remove the fixing screws on the heat exchanger (S) to remove it. (S) Fig.
Jul. 2008 HWE08010 Printed in Japan New publication, effective Jul.
