Mitsubishi Electric PUHZ-ZRP50VKA2 User Manual

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SERVICE MANUAL

R410A

PARTS CATALOG (OCB635)

CONTENTS

1. REFERENCE MANUAL ····························2

2. SAFETY PRECAUTION ····························2

3. FEATURES ············································6

4. SPECIFICATIONS ···································7

5. DATA ····················································8

6. OUTLINES AND DIMENSIONS ················ 11

7. WIRING DIAGRAM ································ 13

8. WIRING SPECIFICATIONS ····················· 15

9.

REFRIGERANT SYSTEM DIAGRAM

·········· 20

10. TROUBLESHOOTING ···························· 22

11. FUNCTION SETTING ····························· 77

12.

MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER

···86

13. EASY MAINTENANCE FUNCTION ··········· 95

14. DISASSEMBLY PROCEDURE ················· 97

PUHZ-ZRP35VKA2

PUHZ-ZRP50VKA2

Note:

• This manual describes

service data of the out-

door units only.

OCH635 is void.

Revision:

• Connectable indoor units

have been added in

REVISED EDITION-A.

No. OCH635

REVISED EDITION-A

July 2020

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

Outdoor unit

[Model Name] [Service Ref.]

PUHZ-ZRP35VKA2

PUHZ-ZRP35VKA2

PUHZ-ZRP35VKA2-ER

PUHZ-ZRP35VKA2-ET

PUHZ-ZRP50VKA2

PUHZ-ZRP50VKA2

PUHZ-ZRP50VKA2-ER

PUHZ-ZRP50VKA2-ET

PUHZ-ZRP60VHA2

PUHZ-ZRP60VHA2

PUHZ-ZRP60VHA2-ER

PUHZ-ZRP60VHA2-ET

PUHZ-ZRP71VHA2

PUHZ-ZRP71VHA2

PUHZ-ZRP71VHA2-ER

PUHZ-ZRP71VHA2-ET

Table of Contents

Questions and Answers:

J
Justin BurnsAug 7, 2025
What to do if the trouble is not reoccurring and logged on my Mitsubishi Electric PUHZ-ZRP50VKA2?
- S
  stevenhansonAug 7, 2025
  If the trouble with your Mitsubishi Electric Air Conditioner is not reoccurring and logged, it might be due to temporary defects such as protection devices in the refrigerant circuit including the compressor, poor wiring connections, or noise. First, consider these temporary defects and re-check the symptom, installation environment, refrigerant amount, weather when the trouble occurred, and wiring. After servicing, reset the check code logs and restart the unit. This indicates there is likely no abnormality in the electrical components, controller board, or remote controller.
K
Katrina MillerAug 12, 2025
What to do if the trouble is reoccurring and displayed on my Mitsubishi Electric PUHZ-ZRP50VKA2?
- P
  pattersonnathanAug 12, 2025
  If the trouble with your Mitsubishi Electric Air Conditioner is reoccurring and displayed, you should determine what is wrong and take corrective action according to the “9-3. SELF-DIAGNOS ACTION TABLE”.
M
Michael SingletonAug 16, 2025
What to do if the trouble is not reoccurring and not logged on my Mitsubishi Electric PUHZ-ZRP50VKA2 Air Conditioner?
- A
  Annette SellersAug 17, 2025
  If the trouble with your Mitsubishi Electric Air Conditioner is not reoccurring and not logged: 1. Re-check the abnormal symptom. 2. Conduct troubleshooting and ascertain the cause of the trouble according to “9-4. TROUBLESHOOTING OF PROBLEMS”. 3. If the cause is not ascertained, continue to operate the unit for the time being. 4. This indicates there is no abnormality concerning parts such as electrical components, controller board, or remote controller.
A
Alexander DavisAug 22, 2025
What to do if the trouble is reoccurring and not displayed on my Mitsubishi Electric Air Conditioner?
- R
  Rhonda ClarkAug 22, 2025
  If the trouble with your Mitsubishi Electric Air Conditioner is reoccurring but not displayed, conduct troubleshooting to ascertain the cause of the problem according to “9-4. TROUBLESHOOTING OF PROBLEMS”.
D
David HernandezAug 27, 2025
What to do if the trouble is not reoccurring and is logged in Mitsubishi Electric Air Conditioner?
- Q
  qhouseAug 27, 2025
  If the trouble with your Mitsubishi Electric Air Conditioner is not reoccurring but is logged, consider temporary defects such as the operation of protection devices in the refrigerant circuit including the compressor, poor wiring connections, or noise. Re-check the symptom, and check the installation environment, refrigerant amount, weather when the trouble occurred, and matters related to wiring. After service, reset check code logs and restart the unit. Note that there may be no abnormality in the electrical components, controller board, remote controller, etc.
J
jessica08Sep 1, 2025
What to do if the trouble is not reoccurring and is not logged in Mitsubishi Electric PUHZ-ZRP50VKA2?
- J
  Jacob MooreSep 1, 2025
  If the trouble with your Mitsubishi Electric Air Conditioner is not reoccurring and is not logged, re-check the abnormal symptom. Conduct troubleshooting and ascertain the cause of the trouble. If the cause is not ascertained, continue to operate the unit for the time being. Note that there may be no abnormality concerning parts such as electrical components, controller board, remote controller, etc.

Mitsubishi Electric PUHZ-ZRP50VKA2 Specifications

General

Cooling Capacity	5.0 kW
Heating Capacity	6.0 kW
Power Supply	220-240 V, 50 Hz
Refrigerant	R32
Outdoor Unit Noise Level	49 dB(A)
Indoor Unit Weight	10 kg
Series	Mr. Slim
Type	Split System
Outdoor Unit Dimensions (HxWxD)	550 x 800 x 285 mm
Operating Range Cooling	-10 to 46°C
Operating Range Heating	-15 to 24°C

Summary

SAFETY PRECAUTIONS

CAUTIONS RELATED TO NEW REFRIGERANT

Specific safety warnings for R410A refrigerant handling.

Service Tools for R410A

Lists essential tools specifically designed for R410A refrigerant work.

SPECIFICATIONS

OUTDOOR UNIT SPECIFICATIONS

Detailed technical data for various outdoor unit models.

REFRIGERANT SYSTEM DIAGRAM

Refrigerant System Diagram for PUHZ-ZRP35VKA2/50VKA2 Series

Diagram illustrating the refrigerant circuit.

TROUBLESHOOTING

HOW TO PROCEED "SELF-DIAGNOSIS"

Guide on utilizing the unit's self-diagnosis feature for error detection.

SELF-DIAGNOSIS ACTION TABLE

A table mapping detected errors to their causes and corrective actions.

FUNCTION SETTING

UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER

How to configure unit functions using the remote controller.

DISASSEMBLY PROCEDURE

Removing the electrical parts box

Steps to remove the electrical components enclosure.

Removing the compressor (MC)

Instructions for detaching the compressor.

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