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Mitsubishi Electric PUHZ-ZRP35VKA2 User Manual

Mitsubishi Electric PUHZ-ZRP35VKA2
108 pages
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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
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Mitsubishi Electric PUHZ-ZRP35VKA2 Specifications

General IconGeneral
BrandMitsubishi Electric
ModelPUHZ-ZRP35VKA2
CategoryAir Conditioner
LanguageEnglish

Summary

1 REFERENCE MANUAL

2 SAFETY PRECAUTION

2-1. ALWAYS OBSERVE FOR SAFETY

Always disconnect all supply circuits before accessing terminals.

2-2. CAUTIONS RELATED TO NEW REFRIGERANT

Cautions for units utilizing refrigerant R410A.

2-3. PRECAUTIONS WHEN REUSING EXISTING R22 REFRIGERANT PIPES

Precautions for reusing existing R22 refrigerant pipes.

3 FEATURES

4 SPECIFICATIONS

5 DATA

5-1. REFILLING REFRIGERANT CHARGE (R410A: kg)

Refilling refrigerant charge amounts for various piping lengths.

5-2. COMPRESSOR TECHNICAL DATA

Technical data for the compressor, including winding resistance.

5-3. NOISE CRITERION CURVES

Noise criterion curves for different models and modes.

5-4. STANDARD OPERATION DATA

Standard operation data for representative indoor/outdoor unit matchings.

6 OUTLINES AND DIMENSIONS

7 WIRING DIAGRAM

8 WIRING SPECIFICATIONS

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

Field electrical wiring specifications, including wire size and circuit rating.

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

Available connection patterns for separate indoor/outdoor unit power supplies.

8-3. INDOOR – OUTDOOR CONNECTING CABLE

Specifications for indoor-outdoor connecting cables, including maximum length.

8-4. M-NET WIRING METHOD

Guidelines and precautions for M-NET wiring to prevent noise and errors.

9 REFRIGERANT SYSTEM DIAGRAM

10 TROUBLESHOOTING

10-1. TROUBLESHOOTING

Summary of check codes and actions based on troubleshooting.

10-2. TEST RUN PROCEDURES

Steps for preparing and executing test runs for various controllers.

10-3. SELF-DIAGNOSIS AND REMOTE CONTROLLER CHECKS

Procedures for self-diagnosis and checking remote controller operations.

10-4. SELF-DIAGNOSIS ACTION TABLE

Action table for self-diagnosis errors detected during power on.

10-5. TROUBLESHOOTING OF PROBLEMS

Troubleshooting guide for common operational problems and their solutions.

10-6. HOW TO CHECK THE PARTS

Guide on how to check various components for proper function and resistance.

10-7. HOW TO CHECK THE COMPONENTS

Detailed instructions for checking specific components like thermistors.

10-8. EMERGENCY OPERATION

Procedure and conditions for operating the unit in emergency mode.

10-9. TEST POINT DIAGRAM

Diagram showing test points on the outdoor controller and power circuit boards.

10-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS

Explanation of functions for switches, connectors, and jumpers on the boards.

11 FUNCTION SETTING

11-1. UNIT FUNCTION SETTING VIA REMOTE CONTROLLER

How to set unit functions like temperature detection and mode via remote controller.

11-1-1. Selecting Functions with Various Remote Controllers

Steps to select functions using wired and wireless remote controllers.

11-2. REMOTE CONTROLLER FUNCTION SELECTION OVERVIEW

Overview of function buttons and their use on the PAR-32MAA controller.

12 MONITORING OPERATION DATA VIA REMOTE CONTROLLER

12-1. HOW TO MONITOR OPERATION DATA

How to monitor operation data, thermistor temperatures, and error history.

12-2. REQUEST CODE LIST AND DETAILS

List of request codes and their detailed contents for monitoring data.

13 EASY MAINTENANCE FUNCTION

13-1. SMOOTH MAINTENANCE

How to display and check maintenance data like temperatures and compressor current.

14 DISASSEMBLY PROCEDURE

1. Removing the top panel, service panel, front panel, back panel and grille

Steps to remove panels and grille from the outdoor unit.

2. Removing the fan motor

Steps to remove the fan motor and its related components.

3. Removing the electrical parts box

Steps to remove the electrical parts box and disconnect internal wiring.

5. Removing the thermistor <Outdoor> (TH7)

Steps to remove the outdoor thermistor, noting replacement with TH6.

6. Removing the thermistor <Discharge> (TH4) and thermistor <Comp. surface> (TH33)

Steps to remove discharge and compressor surface thermistors.

7. Removing the 4-way valve coil (21S4), LEV coil (LEV(A), LEV(B))

Steps to remove the 4-way valve coil and LEV coils.

8. Removing the 4-way valve

Steps to remove the 4-way valve assembly.

9. Removing LEV

Steps to remove the linear expansion valve (LEV).

10. Removing the high pressure switch (63H)

Steps to remove the high pressure switch.

11. Removing the reactor (DCL)

Steps to remove the reactor (DCL).

12. Removing the compressor (MC)

Steps to remove the compressor, including refrigerant recovery.

13. Removing the power receiver

Steps to remove the power receiver and its leg.

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