Mitsubishi Electric Mr.Slim PUHZ-P125VKA User Manual

SERVICE MANUAL
No.OCH670
SPLIT-TYPE AIR CONDITIONERS
R410A
September 2017
Outdoor unit
[Model Name]
PUHZ-P100VKA
PUHZ-P125VKA
PUHZ-P140VKA
PUHZ-P100YKA
PUHZ-P125YKA
PUHZ-P140YKA
[Service Ref.]
PUHZ-P100VKA.TH
PUHZ-P100VKA.TH-ET
PUHZ-P100VKA.TH-ER
PUHZ-P125VKA.TH
PUHZ-P125VKA.TH-ET
PUHZ-P125VKA.TH-ER
PUHZ-P140VKA.TH
PUHZ-P140VKA.TH-ET
PUHZ-P140VKA.TH-ER
PUHZ-P100YKA.TH
PUHZ-P100YKA.TH-ET
PUHZ-P100YKA.TH-ER
PUHZ-P125YKA.TH
PUHZ-P125YKA.TH-ET
PUHZ-P125YKA.TH-ER
PUHZ-P140YKA.TH
PUHZ-P125YKA.TH-ET
PUHZ-P125YKA.TH-ER
PARTS CATALOG (OCB670)
CONTENTS
1. REFERENCE MANUAL ································· 2
2. SAFETY PRECAUTION ································· 2
3. SPECIFICATIONS ·········································· 6
4. DATA ······························································· 7
5. OUTLINES AND DIMENSIONS ··················· 10
6. WIRING DIAGRAM ······································ 11
7. WIRING SPECIFICATIONS ·························· 14
8. REFRIGERANT SYSTEM DIAGRAM ············· 19
9. TROUBLESHOOTING ································· 21
10. FUNCTION SETTING ··································· 78
11. MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER ····90
12. EASY MAINTENANCE FUNCTION ··········· 100
13. DISASSEMBLY PROCEDURE ··················· 104

Mitsubishi Electric Mr.Slim PUHZ-P125VKA Specifications

General

Cooling Capacity	12.5 kW
Heating Capacity	14.0 kW
Refrigerant	R410A
Seasonal Energy Efficiency Ratio (SEER)	6.1
Outdoor Unit Noise Level	54 dB(A)
Type	Split System
Energy Efficiency Ratio (Cooling)	3.21

Summary

2 SAFETY PRECAUTION

2-1. ALWAYS OBSERVE FOR SAFETY

General safety rules to observe before performing repair service.

2-2. CAUTIONS RELATED TO NEW REFRIGERANT

Specific cautions for handling units utilizing R410A refrigerant.

6 WIRING DIAGRAM

7 WIRING SPECIFICATIONS

7-1. FIELD ELECTRICAL WIRING (power wiring specifications)

Detailed power wiring specifications for various outdoor unit models.

7-2. SEPARATE INDOOR UNIT/ OUTDOOR UNIT POWER SUPPLIES

7-3. INDOOR – OUTDOOR CONNECTING CABLE

7-4. M-NET WIRING METHOD

9 TROUBLESHOOTING

9-1. TROUBLESHOOTING

Summary of troubleshooting actions based on check codes and unit conditions.

9-2. CHECK POINT UNDER TEST RUN

9-3. HOW TO PROCEED "SELF-DIAGNOSIS"

Guidance on how to perform self-diagnosis using the remote controller.

9-4. SELF-DIAGNOSIS ACTION TABLE

Action table for diagnosing abnormalities detected when the unit is powered on.

9-5. TROUBLESHOOTING OF PROBLEMS

10 FUNCTION SETTING

10-1. UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER

How to set various unit functions using the remote controller.

10-1-1. Selecting functions using the wired remote controller <PAR-31MAA>

Step-by-step guide for selecting functions via wired remote controller.

10-1-2. Selecting functions using the wired remote controller <PAR-21MAA>

Detailed guide for selecting functions via wired remote controller.

10-1-3. Selecting functions using the wireless remote controller (Type C)

Procedure for selecting functions using a wireless remote controller.

10-2. FUNCTION SELECTION OF REMOTE CONTROLLER

Overview of function selection capabilities for the remote controller.

10-2-1. PAR-31MAA

Explanation of function buttons on the PAR-31MAA wired remote controller.

10-2-2. PAR-21MAA

Guide to using the PAR-21MAA remote controller's function selection mode.

11 MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER

11-1. HOW TO "MONITOR THE OPERATION DATA"

Instructions on how to monitor unit operation data via remote controller.

11-1-1. PAR-31MAA

11-1-2. PAR-21MAA

12 EASY MAINTENANCE FUNCTION

12-1. SMOOTH MAINTENANCE

12-1-1. PAR-30MAA/PAR-31MAA

12-1-2. PAR-21MAA

13 DISASSEMBLY PROCEDURE