Mitsubishi Electronics PKH24FL, PKH36FL, PKH30FL service manual Revised EDITION-A, Contents

Page 1

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

No. OC276

REVISED EDITION-A

TECHNICAL & SERVICE MANUAL

Series PKH Wall Mounted

[Models] PKH18FL

PKH24FL

PKH30FL

PKH36FL

Revision:

The wrong descriptions in REFRIGERANT SYSTEM DIAGRAM have been modified. (Page 18.)

The wrong descriptions in WIRING DIAGRAM have been modified.

(Page 19.)

Restrictor valve and capillary tube have been added to "Specifications" of heat exchanger. (Page 48.)

Please void OC276.

CONTENTS

1.FEATURES ·······················

2.PART NAMES AND FUNCTIONS ·············

3.SPECIFICATIONS····················

4. DATA ·························

5. OUTLINES AND DIMENSIONS··············

6. REFRIGERANT SYSTEM DIAGRAM ···········

7. WIRING DIAGRAM···················

Indoor unit

8. OPERATION FLOW-CHART ···············

 

 

 

 

 

 

9. MICROPROCESSOR CONTROL·············

 

 

 

10. TROUBLESHOOTING ··················

CHECK

TEST

˚F

 

MODEL

RUN

11. DISASSEMBLY PROCEDURE ··············

˚C

SELECT

START

 

STOP AMPM

 

FAN

SWING

 

 

NOT AVAILABLE

 

 

 

 

 

12. PARTS LIST······················

Remote controller

 

 

 

 

 

 

 

 

RTIFIED TO ARIA

 

 

 

 

 

 

 

CE

 

 

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L ISTED

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Image 1
Contents Revised EDITION-A ContentsFeatures Part Names and Functions Models PKH18FL, PKH24FL, PKH30FL, PKH36FL SpecificationsModels PKH18FL, PKH24FL, PKH30FL, PKH36FL Performance Data DataHeating Capacity PKH18FL Performance CurvePKH24FL PKH36FL Heating Mode PKH18FL Cooling ModeCondensing Pressure and Suction Pressure Indoor DB temperature F 80 psi.G Pressure Suction PKH24FL Cooling ModePKH30FL Cooling Mode PKH36FL Cooling Mode SHF PKH18FL PKH24FL PKH30FL PKH36FL Standard Operation DataOutlet AIR Speed and Coverage Range Operating RangeWith wind baffle D.B F if no wind baffle PKH30FL Noise Criterion CurvesPKH36FL Band Center FREQUENCIES, HzPKH24FL OutlinesUnit inch Inch PKH36FL PKH30FLWireless Remote Controller Refrigerant System DiagramPKH18FL PKH24FL PKH30FL PKH36FL Models PKH18FL, PKH24FL, PKH30FL, PKH36FL Wiring Diagram Wiring DiagramMain Operation Operation FLOW-CHARTCooling Operation YES DRY OperationYES FAN Speed no Heating OperationOutline of Microprocessor Control Microprocessor ControlHow to operate Cool operation time chartIndoor Unit Control Cool operationStart condition Compressor controlCoil frost protection Termination conditionsAuto Return Auto vane controlDetecting abnormalities in the outdoor unit DRY operation DRY operation time chart How to operateFan control in DRY operation Heat operation Heat operation time chart How to operateDisplay in Heat operation Booster heater control Overheat protectionOverheat prevention Defrosting operation Indoor coil temperature abnormality detectionMode change Initial modeTemperature range COOL/DRY operation Auto vane controlAuto return Timer function Timer operationTest run Before emergency operation Emergency operationOn remote controller board On indoor controller board Dip switch and jumper connector functionsIndoor FAN Control Model No Wireless remote controller pair number setting operationSelf-check TroubleshootingOther Troubles and Causes Between remote controller and indoor unit Wrong Wiring on SiteCheck points HOW to Check the PartsOperating Procedure PHOTOS&ILLUSTRATION Disassembly ProcedureIndoor unit PKH24FL PhotoRemoving the intake grilles Removing the vane motorRemoving the drain pan Removing the line flow fan and the fan motor Operating Procedure PhotosRemoving the electrical heater Electrical Parts PKH18FL PKH24FL PKH30FL PKH36FL Parts ListT7W E13 Qty / set Wiring Parts No Parts Name SpecificationsT7W E14 R01 12G 621PKH24FL PKH30FL PKH36FL Structural PartsPage Distributed in Dec No.OC276 New publication, effective Nov Specifications are subject to change without notice