Mitsubishi Electric PUHZ-P250YKAR1.UK User Manual

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
SERVICE MANUAL
R410A
Outdoor unit
[Model Name]
PUHZ-P200YKA
PUHZ-P250YKA
[Service Ref.]
PUHZ-P200YKA.UK
PUHZ-P200YKAR1.UK
PUHZ-P250YKA.UK
PUHZ-P250YKAR1.UK
PARTS CATALOG (OCB582)
CONTENTS
TECHNICAL CHANGES ···································· 2
1. REFERENCE MANUAL ································· 3
2. SAFETY PRECAUTION ································· 3
3. FEATURES ····················································· 7
4. SPECIFICATIONS ·········································· 8
5. DATA ······························································· 9
6. OUTLINES AND DIMENSIONS ··················· 12
7. WIRING DIAGRAM ······································ 13
8. WIRING SPECIFICATIONS ·························· 14
9. REFRIGERANT SYSTEM DIAGRAM ············· 19
10. TROUBLESHOOTING ·································· 21
11. FUNCTION SETTING ··································· 75
12. MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER ···· 83
13. EASY MAINTENANCE FUNCTION ············· 92
14. DISASSEMBLY PROCEDURE ····················· 95

Note:
•Thismanualdescribesservice
dataoftheoutdoorunitsonly.
No. OCH582
REVISED EDITION-B
June 2015
•PleasevoidOCH582
REVISEDEDITION-A.
Revision:
•
Added
 PUHZ-P200YKAR1.UKand
PUHZ-P250YKAR1.UKin
REVISEDEDITION-B.
•Somedescriptionshavebeen
modified.

Mitsubishi Electric PUHZ-P250YKAR1.UK Specifications

General

Brand	Mitsubishi Electric
Model	PUHZ-P250YKAR1.UK
Category	Air Conditioner
Language	English

Summary

2 SAFETY PRECAUTION

2-1. ALWAYS OBSERVE FOR SAFETY

Before obtaining access to terminal, all supply circuits must be disconnected.

2-2. CAUTIONS RELATED TO NEW REFRIGERANT

Cautions for units utilizing refrigerant R410A.

2-3. PRECAUTIONS WHEN REUSING EXISTING R22 REFRIGERANT PIPES

Flowchart to determine if existing pipes can be used and if a filter drier is necessary.

3 FEATURES

4 SPECIFICATIONS

5 DATA

5-1. REFILLING REFRIGERANT CHARGE

Table showing refrigerant charge amounts for different piping lengths.

5-2. ADJUSTING THE AMOUNT OF REFRIGERANT

Guidelines for adjusting refrigerant charge based on piping length.

5-3. COMPRESSOR TECHNICAL DATA

5-5. STANDARD OPERATION DATA

6 OUTLINES AND DIMENSIONS

7 WIRING DIAGRAM

8 WIRING SPECIFICATIONS

8-1. FIELD ELECTRICAL WIRING (power wiring specifications)

8-2. SEPARATE INDOOR UNIT/OUTDOOR UNIT POWER SUPPLIES

8-3. INDOOR – OUTDOOR CONNECTING CABLE

8-4. M-NET WIRING METHOD

9 REFRIGERANT SYSTEM DIAGRAM

10 TROUBLESHOOTING

10-1. TROUBLESHOOTING

Summary of check codes and actions for service based on reoccurring troubles.

10-2. CHECK POINT UNDER TEST RUN

10-3. HOW TO PROCEED "SELF-DIAGNOSIS"

Steps for performing self-diagnosis using the remote controller.

10-4. SELF-DIAGNOSIS ACTION TABLE

Table detailing actions for detected abnormalities when power is applied.

11 FUNCTION SETTING

11-1. UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER

11-1-1. Selecting functions using the wired remote controller <PAR-30MAA> <PAR-31MAA>

11-1-2. Selecting functions using the wireless remote controller (Type C)

12 MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER

12-1. HOW TO "MONITOR THE OPERATION DATA"

12-2. Request code list

13 EASY MAINTENANCE FUNCTION

13-1. SMOOTH MAINTENANCE

14 DISASSEMBLY PROCEDURE

Panel and Fan Motor Removal

Electrical Parts Box Procedures

Thermistor Removal

Valve, Coil, and Switch Removal

Major Component Removal