Mitsubishi PKH-3FKA- Manuals

5 SPECIFICATIONS 3 Item Function Capacity Total input Service Ref.Power supply(phase,cycle,voltage) External finishHeat exchanger Booster heaterOperation control & ThermostatNoise level(Low-High)Cond. drain connection. O.D. Dimensions WeightService Ref.Power supply (phase, cycle, voltage) Extern...

9 kg(lbs) PKH-2FKA 3 Service Ref. Power supply(Phase, cycle, voltage) External finish Heat exchanger Fan Booster heater Operation control & Thermostat Noise level(Low-High) Cond. drain connection O.D. Dimensions Weight Service Ref. Power supply(Phase, cycle, voltage) External finish Refrigerant ...

13 DATA 4 Service Ref. PKH-2FKA 3 PKH-2.5FKA 2 PKH-2.5FKA 3 PKH-3FKA 2 PKH-3FKA 3 PKH-4FKSA 2 PKH-4FKSA 3 16 18 20 22 16 18 20 22 16 18 20 22 16 18 20 22 CA 5,549 5,908 6,271 6,638 6,557 6,982 7,411 7,845 7,970 8,486 9,007 9,534 9,584 10,204 10,832 11,465 P.C. 1.82 1.86 1.89 1.93 2.05 2.09 2.13 2.17...

14 Service Ref. PKH-2FKA 3 PKH-2.5FKA 2 PKH-2.5FKA 3 PKH-3FKA 2 PKH-3FKA 3 PKH-4FKSA 2 PKH-4FKSA 3 15 20 25 15 20 25 15 20 25 15 20 25 CA 4,280 4,098 3,939 4,931 4,721 4,537 6,232 5,967 5,735 7,328 7,016 6,743 -10 -5 0 5 10 15 Outdoor intake air D.B. ° C Refrigerant piping length (one way) PKH-2FKA ...

16 Service Ref. Indoor unit Outdoor unit Cool 5,400 2.19 0.07 0.32 0.40 2.12 9.83 43 Heat 6,150 2.21 0.07 0.32 0.40 2.14 9.93 43 Heat 7,100 2.26 0.095 0.440 0.70 2.16 10.02 52 Heat 9,000 3.02 0.095 0.440 0.70 2.92 13.68 54 Heat 9,000 3.02 0.095 0.440 0.70 2.92 4.88 34 Heat 10,500 3.27 0.114 0.530 0....

17 Indoor unit Outdoor unit Input (kW)Current (A)Starting current (A)Input (kW)Current (A)Starting current (A) ModeCapacity (W)Total Input (kW) Cooling 7,000 3.01 0.095 0.440.702.91 13.50 58 Cooling 5,800 2.490.080.370.502.41 11.07 54 PKH-2FKA 3 PKH-2.5FKA 2 PKH-2.5FKA 3 PUH-2.5NKA 1 PUH-2.5NKA 2 PU...

18 Service Ref. Mode Capacity Input Indoor unit Service Ref. Phase,Hz Volts Amperes Outdoor unit Service Ref. Phase,Hz Volts Amperes Discharge pressure Suction pressure Discahrge temperature Condensing temperature Suction temperature Ref.pipe length Intake air temperature Discharge air temperature I...

19 Electrical circuit Total Refrigerant circuit Indoor side Outdoor side Capacity Input Indoor unit Service Ref. Phase, Hz Volts Amperes Outdoor unit Service Ref. Phase, Hz Volts Amperes Discharge pressure Suction pressure Discharge temperature Condensing temperature Suction temperature Ref. pipe le...

20 5 OUTLINES AND DIMENSIONS Pipe position Left side Lequid pipe Gas pipe Service space required around indoor unit (100 for left-hand side piping) Right side 130 or less 2 tapping screws for installation plate (Necessary clearance for Unit installation) Drain pipe Front 50 or more 2-unit hangers Un...

24 6 WIRING DIAGRAM CN2 OFFON 4 3 2 1 SW18 TB6 A01 B02 OFFON R.B 4 5 2 3 1 CN1 3 2 1 8 7 6 5 4 3 2 1 SW17 LED1 12VPOWER LED2 5VPOWER SW7 SW2 1 2 3 4 5 6 10 1 2 3 4 SW5 21 CN2L LOSSNA Y 3 1 LS MV 3 TRANSMISSION WIRESDC12V 1 2 1 3 5 FAN2 HEATER CN24 REMOCON POWER CN40 4 21 3 SW1 ONOFF 1 2 3 4 5 6 7 8 ...

25 NOTES: 1. Since the indoor fan motor (MF) is connected with 230, 240V power, using 220V power will require a setting change of the dip switch (SW7<I.B>) on the indoor controller board as shown in fig : w 1. Indoor fan motor (MF) for 220V. 2. Since the indoor transformer (T) is connected wit...

26 7 REFRIGERANT SYSTEM DIAGRAM Indoor heat exchanger Indoor unit Refrigerant pipe(option)15.88mm( 5/8")(with heat insulator) Refrigerant pipe(option)9.52mm( 3/8")(with heat insulator) Flexible tube Flaredconnection Ball valve Strainer Ball valve(with Service port) Oil separator 4-way valve ...

28 OPERATION FLOW-CHART 8 START Power circuit breaker Check SW ON twice Operation SW ON “OFF” timer “ON” timer STOP Set time complete Set time complete 1 NO NO NO NO NO NO NO NO NO NO NO NO YES YES YES YES YES YES YES YES YES YES YES YES PROTECTION DEVICE SELF HOLD RELEASE Remote controller indicato...

29 COOL operation Four-way valve/OFF Initial COOLING NO NO NO NO NO NO YES YES YES YES YES YES NO YES YES YES YES YES YES YES YES YES YES YES NO NO NO NO YES NO NO NO NO NO NO NO NO NO Vane initial setting Vane 60 deg downward angle70 deg downward angle Fan speed LOW Downward discharge 1 hour Vane s...

30 Heat operation Vane setting notch Vane initial setting Defrost release Outdoor unit trouble Four-way valve ON Allowance cancel Outdoor unit trouble FAN SPEED Very low airflow Compressor OFF 1 3 min.restart prevention 6 min. restart prevention 2 A B B A 1 2 1 Hot adjust start FAN SPEED very low Co...

31 w 8—9 Refer to page 29. w 12 When room temperature is 18°C or below, the compressor cannot operate.When room temperature rises over 18°C, the compressor starts after a 3-minute time delay. w 13 Compressor ON time is decided by room temperature. Refer to page 38. w 14 In dry operation, compressor ...

32 MICROPROCESSOR CONTROL 9 ● Compressor and outdoor fan : ON-OFF ● Operation mode change :COOL-HEAT. 1. OUTLINE OF MICROPROCESSOR CON- ● OFF-ON switching. ● COOL/DRY-AUTO-HEAT selector switching. ● Thermostat setting. ● TIMER mode selector-switching and Timer setting. ● HIGH-LOW fan speed switching...

33 (1) Compressor control 1 3-minute time delay To prevent overload, the compressor will not start within 3 minutes after stop. 2 The compressor runs when room temperature is higher than set temperature. The compressor stops when room temperature is equal to or lower than the set temperature. 3 The ...

36 <Auto vane drive> (PKH-2FKA 3 ) (a) The auto vane is driven by a 2.5 rpm motor.(b) Discharge direction can be selected between the No.1 and No.2 setting. (Initial setting is No.1) (c) Vane motor drive time (d) Discharge direction is based on the horizontal position detected by the vane moto...

43 <How to operate> To change the air flow direction, press button. (1) COOL/DRY operation At the start-up of COOL or DRY operation, the discharge direction in automatically set to 10°. After, it can be changed to another direction with button on the remote controller. <Auto return>When ...

45 (1) Indoor coil temperature code During the test run, the indoor coil temperature code from 1 to 15 is displayed on the remote controller instead of roomtemperature. The code should fall with the lapse of time in normal COOL operation, and should rise in normal HEAToperation. (2) Trouble during t...

46 2-9 Interlock with ventilation system (LOSSNAY)Mr. SLIM/LOSSNAY interlock operation is available by using the optional parts listed below. (1) System organization NOTE: For further information, refer to the LOSSNAY technical & service manual. (2) LOSSNAY models connectable to Mr. SLIM are:LGH...

48 1 2 Normal operation ONOFF 1 2 For emergency cooling ONOFF 1 2 For emergency heating ONOFF 1 2 3 4 ONOFF SW5-1) Power supply SW5-2) OFF:For models with heat pump ON :For models without heat pump SW5-3) Not for use SW5-4) This switch is unavailable Keep this switch at OFF. (5) SW6 (Model selector)...

49 J1-4) Switch for drain pumpProvided : The drain pump works in only COOL operation Not provided: The drain pump works in both COOL and HEAT operation J1-5) Switch to change the temperature to start coil frost preventionProvided : 1°C (For all current models) Not provided: -3°C (For previous specia...

50 3. OUTDOOR UNIT CONTROL 3-1 Outdoor fan controlThe rotational frequency of outdoor fan is phase-controlled according to the outdoor coil temperature. This control allows thecooling operation even with the low outside-air temperature and the heating operation even with the high outside-air tempera...

53 3-7 Service functions(1) Compulsory defrosting 1 When all of the following conditions are satisfied, pressing SW2 starts the compulsory defrosting. ● During HEAT mode ● The compressor is ON. ● The outdoor coil temperature is being displayed by LED. (Outdoor controller board dip switch SW3-1 : OFF...

54 10 TROUBLESHOOTING Symptom Cause Check points The display “CENTRALLYCONTROLLED” on remotecontroller does not disap-pear. 1) Wrong address setting of remote con- troller/indoor controller board. 2) Timer adapter is connected to the remote controller. 3) Signal transmission error between indoor uni...

55 2. SELF DIAGNOSTIC FUNCTION WITH REMOTE CONTROLLER 2-1 When malfunction occurs during operation When a malfunction occurs, the indoor and outdoor units stop and the malfunction is displayed on the LCD of the remotecontroller.(1) ON the set temperature display part, “CHECK” appears, and the unit a...

58 3-1 Outdoor coil temperature To obtain data on the outdoor coil temperature, add the number of bits of lighting LEDs, and see the graph below to findthe temperature. 3-2 Fan output step To obtain data on the fan output step, add the number of bits of lighting LEDs, and see the graph below to find...

60 6. WRONG WIRING ON SITE 6-1 Between remote controller and indoor unit If the wire is disconnected between the remote controller and the indoor unit, nothing is displayed on the remote controllerwhen the POWER button is pressed. The beep sound will also not be heard. 6-2 Phenomena due to wrong wir...

61 Symptom LOSSNAY control switch does not work. LOSSNAY air speed can not be controlled in interlock opera-tion. LOSSNAY control switch can not work during interlock opera-tion.LOSSNAY control switch is effective only while Mr. SLIM is notoperating. LOSSNAY fan speed is fixed to HIGH during interlo...

62 9. How to check the parts 0 10 20 30 40 50 -20 -10 0 10 20 30 40 50 < Thermistor for lower temperature > Temperature ( : ) Resistance (K " ) <Thermistor Characteristic graph> Room temperature thermistor(RT1)Pipe temperature thermistor(RT2) Thermistor R 0 =15k ' ± 3% Fixed number o...

63 SYSTEM CONTROL 11 1 Group control with a single remotecontroller(See page 64.) Unit Remotecontroller Unit Unit Many units, installed at different locations, can be startedand controlled with a angle remote controller. The remotecontroller can be mounted in a different location using anon-polar tw...

64 2. GROUP CONTROL WITH A SINGLE REMOTE CONTROLLER A maximum of 50 units can be started in order according to the dip switch settings 2-1 How to wire (1) Connect the remote controller to the double terminal block on the indoor controller board of the master unit (No.0 unit).(See Figure 1.) (2) Conn...

65 3. REMOTE ON-OFF AND INDIVIDUAL REMOTE CONTROLS This method is available to control one unit or any number of units.The following operations are available by connecting a relay, a timer adapter (PAC-SA89TA-E), and a remote ON/OFF switchto the system. Timer adapter is an optional part. Other parts...

66 NOTE1 : Install the relay box where you can be serviced it easily.NOTE2 : For control circuit wiring, use a wire of No. 14 AWG or a control cable according to the power supply of control circuit. NOTE3 : When the power supply of the control circuit is 220/240V AC, ● Do not connect the control cir...

67 5. MULTIPLE REMOTE CONTROL DISPLAY You can control several units with a multiple remote control display,bywiring an optional multiple display adapter (PAC-SA88HA-E) with relaysand lamps on the market.5-1 How to wire (1) Connect the multiple display adapter to the connector CN51 on the indoor cont...

68 12 DISASSEMBLY PROCEDURE OPERATING PROCEDURE PHOTOS&ILLUSTRATION Metal fixture Screws 1. Removing the lower side of the indoor unit from the instal- lation plate(1) Remove the 2 screws. Hang the indoor unit hangers to the catches on the instal-lation plate. Hanger of indoor unit Catch of inst...

69 OPERATING PROCEDURE PHOTOS&ILLUSTRATION (9) Remove the screws of the indoor controller board case, and pull out the indoor controller board case. Then the transformer and the capacitor can be serviced. 5. Removing the vane motor (1) Remove the right side panel. (2) Remove the screw of the ele...

70 OPERATING PROCEDURE PHOTOS 8. Removing the lineflow fan and the fan motor (1) Remove the left and right side panels. (2) Remove the grilles. (3) Remove the electrical parts box. (4) Remove the drain pan. (5) Loosen the screw that fixes the lineflow fan to the fan motor. (See Photo 7. ) (6) Remove...

71 PARTS LIST 13 No. Part No. Part Name Specification PKH-2 Wiring Diagram Symbol Recom- mended Q'ty Unit Amount Q'ty / set Price FRONT PANEL FRONT PANEL SCREW CAP CATCH HOLDER FILTER CATCH AIR FILTER AIR FILTER SERVICE PANEL PANEL CATCH UNDER COVER CORNER COVER BOX ASSEMBLY BACK PLATE 1 4 2 2 2 1 2...

72 Part number that is circled is not shown in the figure. No. Part No. Part Name Specification Wiring Diagram Symbol Recom- mended Q'ty Unit Amount Q'ty / set Price 1 2 3 4 5 6 7 8 9 10 LEFT SIDE PANEL UNDER PLATE UNDER PLATE NOSE NOSE AIR FILTER INTAKE GRILLE RIGHT SIDE PANEL BACK PLATE TOP PLATE ...

No. Part No. Part Name Specification Wiring Diagram Symbol Recom- mended Q'ty Unit Amount Q'ty / set Price 1 2 3 4 5 6 7 8 BEARING MOUNT SLEEVE BEARING LEFT LINEFLOW FAN BEARING BAND HEAT EXCHANGER HEAT EXCHANGER DRAIN PAN DRAIN PAN JOINT SHAFT CENTER COVER (BG02L462H02) 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

80 14 OPTIONAL PARTS Note 1. How to connect refrigerant pipes. Factory supplied optional refrigerant pipings contain refrigerant at the above atmospheric pressures. As long as theconnection takes no more than 5 minutes, no air will enter, and there will be no need for air purging. Remove the blindca...

81 SET/MONITOR SET S M T W T F S MONITOR PROERAN TIMER PAC-SC32PTA TODAY ON WEEKLY SETTING OFF ON SET BACK OFF CLOCK DAILY TIMER SET BACK SET BACK DAILY SETTING 12 15 18 21 24 0 3 6 12 15 ORN 1 2 3 BRN RED 3. TIMER ADAPTER This adapter is needed for system control and for operation via external cont...

5-3. Connection method (1) Connections in the power supply cord. 1. Connect the power supply cord to the power supply terminal-block and fix it in-place with a tie-wrap. Connect a single phase 200V AC (220, 230, 240V) to A A N N . As E E is the GND terminal, be sure to ground the earth wire. 2. Conn...

83 A N E T (Y) (W) (R) (O) (BR) 5A A POWER SUPPLY N E Fuse(5A) Tie-wrap Wiring has to be changed when a 200,230 or 240V power is used. Tie-wrap TRANSFORMER Transmission TERMINAL-BLOCKFOR TRANSMISSION TERMINAL-BLOCKOF POWER SUPPLY 200 220 230 240 BACK ACTIVE BYPASS POWERON/OFF DUAL CENTRAL AHEAD E N ...

84 6-2. Connection method Connection and wiring methods differ with the type of the indoor unit used. Confirm the type before carrying out the work. 6-1. Parts included (2) When the centralized remote controller is used, set the address number with the dip switch SW1 of the program timer adapter. 1 ...