Mitsubishi Electric PK18FL Manual
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Mitsubishi Electric PK18FL Manual

Mitsubishi Electric PK18FL Manual

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PK24FL, PK24FL
CONTENTS
1. TECHNICAL CHANGE················································································OC185A- 1
2. FEATURES ··································································································OC185A- 2
3. PART NAME AND FUNCTIONS ·································································OC185A- 3
4. SPECIFICATIONS ·······················································································OC185A- 4
5. DATA············································································································OC185A- 5
6. OUTLINES AND DIMENSIONS ··································································OC185A-12
7. REFRIGERANT SYSTEM DIAGRAM ·························································OC185A-14
8. WIRING DIAGRAM······················································································OC185A-15
9. OPERATION FLOW-CHART·······································································OC185A-16
10. MICROPROCESSOR CONTROL ·······························································OC185A-19
11. TROUBLESHOOTING ·················································································OC185A-28
12. DISASSEMBLY PROCEDURE····································································OC185A-31
13. PARTS LIST·································································································OC185A-34
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OC185A-1

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Summary of Contents for Mitsubishi Electric PK18FL

  • Page 1: Table Of Contents

    PK18FL, PK18FL PK24FL, PK24FL PK30FL, PK30FL PK36FL, PK36FL CONTENTS 1. TECHNICAL CHANGE················································································OC185A- 1 2. FEATURES ··································································································OC185A- 2 3. PART NAME AND FUNCTIONS ·································································OC185A- 3 4. SPECIFICATIONS ·······················································································OC185A- 4 5. DATA············································································································OC185A- 5 6. OUTLINES AND DIMENSIONS ··································································OC185A-12 7. REFRIGERANT SYSTEM DIAGRAM ·························································OC185A-14 8.

  • Page 2: Pk18Fl Pk18Fl

    SET TEMP COOL ˚F SWING NOT AVAILABLE POWER ON / OFF TEMP Indoor unit Wireless Remote controller Models Cooling capacity SEER PK18FL, PK18FL 18,500 Btu/h 11.3 PK24FL, PK24FL 24,000 Btu/h 10.6 PK30FL, PK30FL 30,000 Btu/h 10.7 PK36FL, PK36FL 34,200 Btu/h 10.2 1.

  • Page 3: Part Name And Functions

    PART NAME AND FUNCTIONS Wireless remote controller OPERATION MODE display °F display Operation mode display indicates which opera- SET TEMP. display indicates desired tempera- ture set. tion mode is in effect. • CHECK • TEST RUN display CHECK&TEST RUN display indicates that the unit is being checked or test-run.

  • Page 4: Specifications

    2.34 3.06 3.47 10.6 10.3 SEER 11.3 10.6 10.7 10.2 INDOOR UNIT MODEL PK18FL, PK18FL PK24FL, PK24FL PK30FL, PK30FL PK36FL, PK36FL External finish Munsell 3.4Y7.7/0.8 Power supply V, Phase, Hz 115, 1, 60 Max. fuse size (time delay) Min ampacity Fan motor F.L.A.

  • Page 5: Data

    25ft 40ft 55ft 70ft 85ft 100ft 115ft 130ft 150ft 164ft 0.992 0.983 0.978 0.966 0.959 0.950 0.945 — — PK18FL, PK18FL 0.981 0.968 0.952 0.940 0.925 0.913 0.900 0.886 0.874 PK24FL, PK24FL 0.981 0.968 0.952 0.940 0.925 0.913 0.900 0.886 0.874...

  • Page 6: Performance Curve

    2. PERFORMANCE CURVE NOTE : A point on the curve shows the reference point. PK18FL PK24FL COOLING CAPACITY COOLING CAPACITY PK18FL PK24FL SHF=0.72 SHF=0.82 indoor intake air WB temperature (°F) indoor intake air WB temperature (°F) indoor intake air WB temperature (°F) indoor intake air WB temperature (°F)
  • Page 7 Data is based on the condition of indoor humidity 50%. Air flow should be set at HI. A point on the curve shows the reference point. <Cooling mode> PK18FL PK18FL [psi.G] PK18FL PK18FL [psi.G] Indoor DB temperature (°F) Indoor DB temperature (°F)
  • Page 8 Data is based on the condition of indoor humidity 50%. Air flow should be set at HI. A point on the curve shows the reference point. <Cooling mode> PK30FL [psi. G] PK30FL PK30FL PK30FL [psi.G] Indoor DB temperature (°F) Indoor DB temperature (°F) 100 110 100 110 DB(°F)

  • Page 9: Standard Operation Data

    3. STANDARD OPERATION DATA Model PK18FL, PK18FL PK24FL, PK24FL PK30FL, PK30FL PK36FL, PK36FL Item Unit Cooling Cooling Cooling Cooling Capacity Btu / h 18,500 24,000 30,000 34,200 — 0.82 0.72 0.75 0.71 Input 1.75 2.34 3.06 3.47 INDOOR UNIT MODEL...
  • Page 10 Standard temperature Maximum temperature Cooling Minimum temperature — Maximum humidity * With wind baffle D.B. 23°F if no wind baffle. 5. OUTLET AIR SPEED AND COVERAGE RANGE PK18FL, PK18FL PK24FL, PK24FL PK30FL, PK30FL PK36FL, PK36FL Standard Airflow (CFM) height Air speed (ft / sec.)

  • Page 11: Noise Criterion Curves

    7. NOISE CRITERION CURVES Unit Ambient temperature 80˚F Wall Test conditions are based on JIS Z8731 3.3ft PK18/24FL SPL(dB) LINE NOTCH PK18/24FL 3.3ft NC-70 NC-60 NC-50 NC-40 NC-30 APPROXIMATE THRESHOLD OF HEARING FOR NC-20 CONTINUOUS NOISE 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz PK30/36FL SPL(dB)

  • Page 12: Outlines And Dimensions

    OUTLINES AND DIMENSIONS 1. Indoor Unit PK18/24FL PK18/24FL Unit : inch OC185A-12...
  • Page 13 PK30/36FL PK30/36FL Unit : inch OC185A-13...

  • Page 14: Wireless Remote Controller

    2. Remote controller Unit : inch WIRELESS REMOTE CONTROLLER 2-1/4 SET TEMP COOL ˚F SWING NOT AVAILABLE POWER ON / OFF TEMP 2-5/32 REFRIGERANT SYSTEM DIAGRAM PK18/24FL PK30/36FL Refrigerant flow PK18/24FL PK30/36FL COOLING Indoor unit Indoor unit Refrigerant pipe Refrigerant pipe (Option) (Option) {5/8...

  • Page 15: Wiring Diagram

    INTAKE WIRELESS CN2B CN2A TWIN-2 TWIN-1 12345678 12345 PK18FL, PK18FL PK24FL, PK24FL PK30FL, PK30FL PK36FL, PK36FL MODELS 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8...

  • Page 16: Operation Flow-Chart

    OPERATION FLOW-CHART MAIN OPERATION START Power circuit breaker Check SW ON twice Operation SW “OFF” timer Set time “ON” timer complete Set time complete Trouble Remote controller operation display STOP Trouble STOP Operating mode (COOL) COOL operation PROTECTION DEVICE PROTECTION DEVICE SELF HOLD RELEASE SELF HOLD Operating mode...

  • Page 17: Cooling Operation

    COOLING OPERATION COOL operation Initial COOLING Vane initial setting Vane 55 deg downward angle 70 deg downward angle Fan speed Downward discharge 1 hour Vane horizontal Vane setting notch airflow Compressor thermostat Allowance cancel 3-minute time delay 6-minute Allowance time delay period 6 minute 3-minute...

  • Page 18: Dry Operation

    DRY OPERATION operation Initial dry operation Vane Vane initial setting setting notch Room temperature is 64°F or lower During compressor ON 3-minute 3-minute compressor time delay operation Compressor & Compressor & thermostat ON thermostat 10-minute Compressor ON compressor time completes Compressor ON 10-minute compressor OFF timer start...

  • Page 19: Microprocessor Control

    MICROPROCESSOR CONTROL 1. OUTLINE OF MICROPROCESSOR CONTROL REMOTE CONTROLLER INPUT to remote controller OUTPUT to remote controller Processes and transmits orders. Indication LCD lights. OFF-ON switching. COOL • DRY • FAN selector switching. HIGH-LOW fan speed switching. SET TEMP COOL TIMER mode selector-switching ˚F Timer setting.

  • Page 20: Indoor Unit Control

    2. INDOOR UNIT CONTROL 2-1COOL operation <How to operate> 1 Press POWER ON/OFF button. 2 Press MODE button to set operation mode to COOL. SET TEMP COOL 3 Set desired temperature with button. ˚F SWING NOTE: 1. Set temperature changes by 2 °F in the range 65~87 °F each TEMP button is pressed.
  • Page 21 5 Coil freeze protection When the indoor coil temperature becomes - 5°F or below, coil freeze protection will proceed as follows. <Start condition> After the compressor has been continuously operated for 3 minutes or more, and the indoor coil temperature has been - 5°F or below for 3 minutes, the coil frost protection will start.
  • Page 22 2-2 DRY operation <How to operate> 1 Press POWER ON/OFF button. SET TEMP COOL 2 Press MODE button to set operation mode to DRY. ˚F SWING 3 Set desired temperature with button. NOTE: 1. Set temperature changes by 2 °F in the range 65~87 °F NOT AVAILABLE each TEMP button is pressed.
  • Page 23 (2) Indoor fan control The indoor fan runs on LOW speed during compressor operation. The fan speed cannot be changed with the remote con- troller. Also, the indoor fan does not run during compressor OFF. (3)Auto vane control Same as in COOL operation. (4)Detecting abnormalities in the outdoor unit An abnormality in the outdoor unit can not be detected in DRY operation.
  • Page 24 2-5 Test run (1) Turn on the main power of unit. (2) Turn the adjusting switch on the back of the wireless remote controller to “SET” CHECK and TEST RUN will start flashing. SET TEMP COOL Wireless remote controller with backside battery cover ˚F removed Display will start finishing.
  • Page 25 2-7 Wireless remote controller pair number setting operation Switches are located on the indoor unit PC board and inside the remote controller as shown. • Setting the SW1 (PC board inside indoor unit) Sub-switches 7 or 8 of SW1 can be used as follows to assign a pair No. Pair Number Pair Number 1 2 3 4 5 6...
  • Page 26 SW1-1) Switch for power supply Not for use.(Only 115V) SW1-2) Not for use. SW1-3) Not for use. SW1-4 ~ SW1-6) Switch for capacity of each model PK18FL, PK18FL PK24FL, PK24FL PK30FL, PK30FL PK36FL, PK36FL 4 5 6 4 5 6...
  • Page 27 2 SW2 (Unit selector switch) 1 2 3 4 5 SW2-1) Switch for air conditioner with or without electric heater ON:Unit with electric heater OFF:Unit without electric heater SW2-2) Switch for air conditioner with or without heat pump ON:Unit with heat pump OFF:Unit without heat pump SW2-3, SW2-4, SW2-5) Switch for function code 3 SW3 (Emergency operation switch)

  • Page 28: Troubleshooting

    TROUBLESHOOTING 1. Self-diagnostic function (1) Turn on the main power of the unit. (2) Turn the adjusting switch on the back of the wireless remote con- troller to “SET” CHECK TEST RUN TEST RUN will start flashing. (3) Push the HR button CHECK will start flashing. (4) While pointing the transmitter to the receiver, push the HR but- ton.
  • Page 29 2. OTHER TROUBLES AND CAUSES Auto vanes do not work. Auto vane motor is damaged. Auto vane motor does not work. Auto vane motor relay is damaged. Connector is poorly connected. Auto vane motor is poorly assembled. Indoor controller board is damaged. Unit stops after 5 to Protection function is working.

  • Page 30: How To Check The Parts

    3. WRONG WIRING ON SITE Symptom due to wrong wiring between indoor and outdoor units Wrong wiring Thermostat Phenomena The outdoor unit stops. Indoor unit Outdoor unit Operation stops. 9 minutes later, the check code ¨P8¨ appears on the remote controller display. Disconnect between 1 and 1 or 2 and Operation stops.

  • Page 31: Disassembly Procedure

    DISASSEMBLY PROCEDURE Indoor unit PK24FL, PK24FL OPERATING PROCEDURE PHOTOS&ILLUSTRATION 1. Removing the lower side of the indoor unit from the instal- Figure 1 lation plate (1) Remove the 2 screws. Hang the indoor unit hangers to the catches on the instal- Hanger of indoor unit lation plate.
  • Page 32 OPERATING PROCEDURE PHOTOS&ILLUSTRATION (8) Remove the screws of the indoor controller board case, Photo 3 RELAY and pull out the indoor controller board case. Then the transformer and the capacitor and relay can be Transformer serviced. Capacitor Indoor controller board case Electrical parts box 5.
  • Page 33 OPERATING PROCEDURE PHOTOS 8. Removing the line flow fan and the fan motor Photo 7 (1) Remove the left and right side panels. (2) Remove the grilles. Screw Line flow fan (3) Remove the electrical box. (4) Remove the drain pan. Fan motor (5) Loosen the screw that fixes the line flow fan to the fan motor.

  • Page 34: Parts List

    PARTS LIST ELECTRICAL PARTS PK18FL, PK18FL PK24FL, PK24FL PK30FL, PK30FL PK36FL, PK36FL 11 12 Q'ty / set Wiring Remarks PK18 PK24 PK30 PK36 Parts No. Parts Name Specifications Diagram (Drawing No.) Symbol FL FL FL FL FL FL FL FL...
  • Page 35 Q'ty / set Wiring Remarks PK18 PK24 PK30 PK36 Parts No. Parts Name Specifications Diagram (Drawing No.) FL FL FL FL FL FL Symbol R01 12G 063 JOINT SHAFT R01 12G 621 CENTER COVER R01 12G 002 AUTO VANE W R01 16G 002 AUTO VANE W R01 KV5 527...
  • Page 36 STRUCTURAL PARTS PK18FL PK18FL PK24FL PK24FL Part number that is circled is not shown in the figure. Q'ty / set Wiring Remarks Parts No. Parts Name Specifications Diagram (Drawing No.) 18FL 18FL 24FL 24FL Symbol R01 12G 662 SIDE PANEL (L) W...
  • Page 37 STRUCTURAL PARTS PK30FL PK30FL PK36FL PK36FL Part number that is circled is not shown in the figure. Q'ty / set Wiring Remarks Parts No. Parts Name Specifications Diagram (Drawing No.) Symbol 30FL 30FL 36FL 36FL R01 12G 662 SIDE PANEL (L) W R01 16G 812 UNDER PLATE W R01 E00 812...
  • Page 38 3400 Lawrenceville Suwanee Road Suwanee, Georgia 30024 ● Toll Free: 800-433-4822 Toll Free Fax: 800-889-9904 ● www.mrslim.com Specifications are subject to change without notice.

This manual is also suitable for:

Pk24flPk30flPk36fl

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