Mitsubishi PK18FL3 User Manual
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Mitsubishi PK18FL3 User Manual

Mitsubishi PK18FL3 User Manual

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PK18FL3
PK24FL3
PK30FL3
PK36FL3
CONTENTS
1. TECHNICAL CHANGE ··················································································OC275- 2
2. FEATURES·····································································································OC275- 3
3. PART NAME AND FUNCTIONS····································································OC275- 4
4. SPECIFICATIONS ··························································································OC275- 5
5. DATA ··············································································································OC275- 6
6. OUTLINES AND DIMENSIONS ·····································································OC275-13
7. REFRIGERANT SYSTEM DIAGRAM····························································OC275-15
8. WIRING DIAGRAM ························································································OC275-16
9. OPERATION FLOW-CHART ·········································································OC275-17
10. MICROPROCESSOR CONTROL ··································································OC275-20
11. TROUBLESHOOTING····················································································OC275-32
12. DISASSEMBLY PROCEDURE ······································································OC275-35
13. PARTS LIST ···································································································OC275-38
OC275-1

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Summary of Contents for Mitsubishi PK18FL3

  • Page 1: Table Of Contents

    PK18FL3 PK24FL3 PK30FL3 PK36FL3 CONTENTS 1. TECHNICAL CHANGE ··················································································OC275- 2 2. FEATURES·····································································································OC275- 3 3. PART NAME AND FUNCTIONS····································································OC275- 4 4. SPECIFICATIONS ··························································································OC275- 5 5. DATA ··············································································································OC275- 6 6. OUTLINES AND DIMENSIONS ·····································································OC275-13 7. REFRIGERANT SYSTEM DIAGRAM····························································OC275-15 8. WIRING DIAGRAM ························································································OC275-16 9.

  • Page 2: Technical Change

    TECHNICAL CHANGE PK18FL PK18FL3 PK24FL PK24FL3 PK30FL PK30FL3 PK36FL PK36FL3 REMOTE CONTROLLER has changed. INDOOR CONTROLLER BOARD has changed accordance with remote controller change. 1) From TRANSFORMER to POWER BOARD. 2) SW1 changed from function selector to mode selector. 3) SW2 changed from unit selector to address selector.

  • Page 3: Features

    MODEL ˚C SELECT STOP AMPM SWING START NOT AVAILABLE Indoor unit Wireless Remote controller Models Cooling capacity SEER PK18FL3 18,500 Btu/h 11.3 PK24FL3 24,000 Btu/h 10.6 PK30FL3 30,000 Btu/h 10.7 PK36FL3 34,200 Btu/h 10.2 1. COMPACT DESIGN The PK series models have been downsized and now require such minimal wall space that they can even be installed above windows.

  • Page 4: Part Name And Functions

    PART NAME AND FUNCTIONS Wireless remote controller When cover is open. display CHECK TEST RUN CHECK&TEST RUN display indicates that the unit is being checked or test-run. display display MODEL SELECT Blinks when model is selected. Lights up while transmission to the indoor unit is mode using switches.

  • Page 5: Specifications

    SPECIFICATIONS Model PK18FL3 PK24FL3 PK30FL3 PK36FL3 Item Capacity Btu/h 18,500 24,000 30,000 34,200 Power consumption 1.75 2.34 3.06 3.47 10.6 10.3 SEER 11.3 10.6 10.7 10.2 INDOOR UNIT MODEL PK18FL3 PK24FL3 PK30FL3 PK36FL3 External finish Munsell 3.4Y7.7/0.8 Power supply V, Phase, Hz 115, 1, 60 Max.

  • Page 6: Data

    14.4 1.89 16.7 13.7 2.03 14.8 18.8 17.9 1.46 18.0 17.2 1.57 17.2 16.4 1.70 16.4 15.6 1.83 15.5 1.96 PK18FL3 62.5 18.6 16.0 1.45 17.9 15.4 1.57 17.1 14.7 1.70 16.2 13.9 1.83 15.4 13.2 1.96 0.14 DB75˚F(50%RH) 12.8 DB72˚F(50%RH)

  • Page 7: Performance Curve

    2. PERFORMANCE CURVE NOTE : A point on the curve shows the reference point. PK18FL3 COOLING CAPACITY PK24FL3 COOLING CAPACITY 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 8 Data is based on the condition under indoor humidity 50%. Air flow should be set at HI. A point on the curve shows the reference point. <Cooling mode> PK18FL3 PK18FL3 [psi.G] [psi.G] Indoor DB temperature (°F) Indoor DB temperature (°F)
  • Page 9 Data is based on the condition under indoor humidity 50%. Air flow should be set at HI. A point on the curve shows the reference point. <Cooling mode> [psi. G] PK30FL3 PK30FL3 [psi.G] Indoor DB temperature (°F) Indoor DB temperature (°F) 100 110 100 110 DB(°F)

  • Page 10: Standard Operation Data

    3. STANDARD OPERATION DATA Model PK18FL3 PK24FL3 PK30FL3 PK36FL3 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 PK18FL3 PK24FL3 PK30FL3 PK36FL3...

  • Page 11: Operating Range

    DB (˚F) WB (˚F) DB (˚F) WB (˚F) Standard temperature Maximum temperature Cooling Minimum temperature — Maximum humidity 5. OUTLET AIR SPEED AND COVERAGE RANGE PK18FL3 PK24FL3 PK30FL3 PK36FL3 Standard Airflow (CFM) height Air speed (ft / sec.) 16.1 16.1 17.7...

  • Page 12: Noise Criterion Curves

    7. NOISE CRITERION CURVES Unit Ambient temperature 80˚F Wall Test conditions are based on JIS Z8731 3.3ft PK18FL3 SPL(dB) LINE NOTCH PK24FL3 3.3ft NC-70 NC-60 NC-50 NC-40 NC-30 APPROXIMATE THRESHOLD OF HEARING FOR NC-20 CONTINUOUS NOISE 500 1000 2000 4000 8000...

  • Page 13: Outlines And Dimensions

    OUTLINES AND DIMENSIONS 5.1. Indoor Unit PK18FL3 PK24FL3 Unit : inch OC275-13...
  • Page 14 PK30FL3 PK36FL3 Unit : inch OC275-14...

  • Page 15: Remote Controller

    ˚F MODEL ˚C SELECT STOP AMPM AUTO SWING START AMPM HEAT NOT AVAILABLE ON/OFF TEMP REFRIGERANT SYSTEM DIAGRAM PK18FL3 PK30FL3 Refrigerant flow PK24FL3 PK36FL3 COOLING Indoor unit Indoor unit Refrigerant pipe Refrigerant pipe (Option) (Option) {5/8 {3/4 (with heat insulator)

  • Page 16: Wiring Diagram

    WIRING DIAGRAM Indoor Unit POWER SUPPLY PK18/24/30/36FL3 ~(1PHASE) AC115V 60Hz GRN/YLW (DC13.1V) GROUND (AC115V) CN2S (WHT) CNSK(RED) TRANS LED2 LED1 POWER POWER 1 3 5 CNDK VANE (WHT) (RED) (WHT) CN2D CN6V (WHT) (WHT) REMOTE CONTROLLER LED1 LED2 WIRELESS CN90 (WHT) CENTRALLY REMOCON...

  • Page 17: 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 18: 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 19: 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 thermostat ON 10-minute Compressor ON compressor time completes Compressor ON 10-minute compressor OFF timer start...

  • Page 20: 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. CHECK TEST COOL TIMER mode selector-switching ˚F MODEL...

  • Page 21: Indoor Unit Control

    2. INDOOR UNIT CONTROL 2-1COOL operation <How to operate> 1 Press POWER ON/OFF button. COOL 2 Press MODE button to set operation mode to COOL. ˚F 3 Set desired temperature with button. NOTE: 1. Set temperature changes by 2 °F in the range 65~87 °F ON/OFF TEMP each TEMP...
  • Page 22 (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. The compressor maintains the previous state when the room temperature minus the set temperature is 0 degrees or more, or lower than 2 degrees.
  • Page 23 (3) Auto vane control Auto vane position is set to 10 degrees airflow at the start-up of COOL operation. It can then be changed by the remote controller. (a) Vane position set mode & swing mode. ( i ) Every time AIR DISCHARGE button is pressed, setting will be changed . ( ii ) Airflow direction can be changed with AIR DISCHARGE button.
  • Page 24 2-2 DRY operation <How to operate> 1 Press POWER ON/OFF button. ˚F 2 Press MODE button to set operation mode to DRY. 3 Set desired temperature with button. NOTE: 1. Set temperature changes by 2 °F in the range 65~87 °F ON/OFF TEMP each TEMP...
  • Page 25 (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 fan runs on LOW speed when the pipe temperature is 43°F or more, or the compressor is OFF and the pipe temperature is below 43°F.
  • Page 26 2-3 FAN operation <How to operate> 1 Press POWER ON/OFF button. 2 Press MODE button to set operation mode to FAN. (1) Indoor fan control The indoor fan speed depends on the remote controller setting. (2) Auto vane control The auto vane position depends on the remote controller set- ting.
  • Page 27 2-5 Test run Test run Measure an impedance between the power supply terminal block on the outdoor unit and ground with a 500V Megger and check that it is equal to or greater than 1.0M". TEST COOL 1 Turn on the main power to the unit. TEST RUN 2 Press the button twice continuously.
  • Page 28 2-6 Emergency operation When the remote controller or microprocessor malfunctions but all other parts are normal, emergency operation is started by setting the dip switch SW3 on the indoor controller board. <Before emergency operation> 1. Make sure the compressor and the indoor fan are operating normally. 2.
  • Page 29 2-7 Dip switch functions Each figure shows the initial factory setting. 1. On indoor controller board (1) SW1 (Mode selector) 1 2 3 4 5 6 7 8 9 10 SW1-1) Switch that changes between FAN mode and AUTO mode OFF:Not available ON:Not available SW1-2) Not for use.
  • Page 30 Address setting is available at any time. The initial factory setting by is based on each capacity. Model PK24FL3 PK30FL3 PK36FL3 PK18FL3 1 2 3 1 2 3 1 2 3 1 2 3 (7) SW8 (Option) 1 2 3 4 SW8-1~2) Not for use.
  • Page 31 2-8 Wireless remote controller pair number setting operation 1 Turn on the main power to the unit. 2 Press the SET button with the point of a ball-point pen or the like. Start this operation from the status of remote controller display turned off. blinks and Model No.

  • Page 32: Troubleshooting

    TROUBLESHOOTING 1. Self-diagnostic function Self-check 1 Turn on the main power to the unit. CHECK 2 Press the button twice continuously. (Start this operation from the status of remote controller display turned off.) begins to light. CHECK B “00” begins to blink. 3 While pointing the remote controller toward the unit’s receiver, press the button.
  • Page 33 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 34 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 35: Disassembly Procedure

    DISASSEMBLY PROCEDURE Indoor unit PK24FL3 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 36 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 Power board serviced. Capacitor Indoor controller board case Electrical box 5.
  • Page 37 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 38: Parts List

    PARTS LIST ELECTRICAL PARTS PK18FL3 PK24FL3 PK30FL3 PK36FL3 11 12 Q'ty / set Wiring Remarks Parts No. Parts Name Specifications Diagram (Drawing No.) Symbol 18FL3 24FL3 30FL3 36FL3 R01 005 103 SLEEVE BEARING R01 Z61 102 BEARING MOUNT R01 13G 114...
  • Page 39 Q'ty / set Wiring Remarks Parts No. Parts Name Specifications Diagram (Drawing No.) Symbol 18FL3 24FL3 30FL3 36FL3 R01 12G 621 CENTER COVER R01 12G 002 AUTO VANE W R01 16G 002 AUTO VANE W R01 KV5 527 DRAIN HOSE R01 12G 223 VANE MOTOR T7W E12 202...
  • Page 40 STRUCTURAL PARTS PK18FL3 PK24FL3 PK30FL3 PK36FL3 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 18FL3 24FL3 30FL3 36FL3 R01 12G 662 SIDE PANEL (L) W...
  • Page 41 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.
  • Page 42 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:

Pk24fl3Pk30fl3Pk36fl3

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