Mitsubishi Electric PUHZ-RP100YHA2 User Manual

SERVICE MANUAL
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
CONTENTS
1. REFERENCE MANUAL··································2
2. SAFETY PRECAUTION··································3
3. FEATURES ·····················································7
4. SPECIFICATIONS···········································8
5. DATA ·····························································10
6. OUTLINES AND DIMENSIONS····················15
7. WIRING DIAGRAM·······································18
8. WIRING SPECIFICATIONS ··························21
9. REFRIGERANT SYSTEM DIAGRAM ··············26
10. TROUBLESHOOTING ··································29
11. FUNCTION SETTING····································86
12. MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER ············92
13. EASY MAINTENANCE FUNCTION············102
14. DISASSEMBLY PROCEDURE ···················107
15. PARTS LIST ················································129
16. RoHS PARTS LIST ·····································140
No.OC374
REVISED EDITION-A
R410A
July 2006
Outdoor unit
[model names]
PUHZ-RP35VHA2
PUHZ-RP50VHA2
PUHZ-RP60VHA2
PUHZ-RP71VHA2
PUHZ-RP100VHA2
PUHZ-RP125VHA2
PUHZ-RP140VHA2
PUHZ-RP100YHA2
PUHZ-RP125YHA2
PUHZ-RP140YHA2
[Service Ref.]
PUHZ-RP35VHA2
PUHZ-RP50VHA2
PUHZ-RP60VHA2
PUHZ-RP71VHA2
PUHZ-RP100VHA2
PUHZ-RP125VHA2
PUHZ-RP140VHA2
PUHZ-RP100YHA2
PUHZ-RP125YHA2
PUHZ-RP140YHA2
PUHZ-RP60VHA2
PUHZ-RP71VHA2
NOTE:
• This manual describes only
service data of the outdoor
units.
• RoHS compliant products have
<G> mark on the spec name
plate.
• For servicing of RoHS compli-
ant products, refer to the RoHS
PARTS LIST.
Revision:
• RoHS PARTS LIST is added.
• Some descriptions have been
modified.
• Please void OC374.
OC374A--1.qxp 06.7.26 5:07 PM Page 1

Mitsubishi Electric PUHZ-RP100YHA2 Specifications

General

Brand	Mitsubishi Electric
Model	PUHZ-RP100YHA2
Category	Air Conditioner
Language	English

Summary

1 REFERENCE MANUAL

1-1. INDOOR UNIT SERVICE MANUAL

Lists indoor unit service manuals and their reference codes.

2 SAFETY PRECAUTION

2-1. CAUTIONS RELATED TO NEW REFRIGERANT

Cautions for units utilizing refrigerant R410A, including piping and tools.

3 FEATURES

CHARGELESS SYSTEM

Pre-charged refrigerant for shipment, controlling optimal refrigerant level.

REFRIGERANT LEAKAGE DETECTION FUNCTION

Functionality to detect refrigerant leakage over a long period of use.

4 SPECIFICATIONS

5 DATA

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

Table showing refrigerant charge amounts based on piping length.

5-2. COMPRESSOR TECHNICAL DATA

Technical data for compressors, including winding resistance.

5-3. NOISE CRITERION CURVES

5-4. STANDARD OPERATION DATA

6 OUTLINES AND DIMENSIONS

Free space around the outdoor unit (basic example)

Guidelines for minimum installation space around outdoor units.

1. FOUNDATION BOLTS

Instructions for securing the unit with foundation bolts.

7 WIRING DIAGRAM

M-NET ADAPTER

Details on terminal blocks, connectors, switches, and LEDs for M-NET adapter.

8 WIRING SPECIFICATIONS

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

Table detailing wiring size, circuit rating, and voltage for different models and systems.

8-4. M-NET WIRING METHOD

Guidelines for M-NET wiring, focusing on preventing noise and proper grounding.

9 REFRIGERANT SYSTEM DIAGRAM

OPERATING PROCEDURES

1. Refrigerant collecting (pump down)

Step-by-step procedure for collecting refrigerant when moving units.

2. Unit replacement operation

Procedures for replacing units, especially when reusing R22 pipes.

3. Start and finish of test run

Steps to start and finish a test run using DIP switches or remote controller.

10 TROUBLESHOOTING

10-1. TROUBLESHOOTING

Summary table of error codes and actions based on phenomenon recurrence.

10-4. SELF-DIAGNOSIS ACTION TABLE

Table linking error codes to specific cases and judgment/action steps.

10-5. TROUBLESHOOTING BY INFERIOR PHENOMENA

Lists common phenomena and their potential causes and countermeasures.

10-8. EMERGENCY OPERATION

(3) Emergency operation procedure

Step-by-step instructions to activate emergency operation.

(4) Releasing emergency operation

Steps to disable emergency operation and return to normal mode.

10-9. TEST POINT DIAGRAM

10-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS

(1) Function of switches

Explanation of DIP switches (SW1, SW4, SW5, SW7, SW8, SW9) and push switches (SWP).

11 FUNCTION SETTING

11-1. UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER

How to set various unit functions using the remote controller.

11-2. FUNCTION SELECTION OF REMOTE CONTROLLER

Lists functions that can be changed via remote controller's function selection mode.

12 MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER

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

Steps to access and view operation data in maintenance mode via remote controller.

12-2. REQUEST CODE LIST

List of request codes for monitoring operation data, with descriptions and units.

13 EASY MAINTENANCE FUNCTION

13-1. MAINTENANCE MODE OPERATION METHOD

How to switch to and operate maintenance mode using the remote controller.

13-3 INITIAL SETTINGS FOR REFRIGERANT LEAKAGE DETECTION FUNCTION

Initial settings for refrigerant leakage detection function.

14 DISASSEMBLY PROCEDURE

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

Step-by-step instructions for removing outer panels.

2. Removing the fan motor

Instructions for removing the fan motor and its components.

3. Removing the electrical parts box

Steps to remove the electrical parts box and its contents.

4. Removing the thermistor <Outdoor 2-phase pipe> (TH6) and thermistor <Outdoor pipe> (TH3) (TH33)

Instructions for removing outdoor thermistors.

5. Removing the thermistor <Outdoor> (TH7)

Instructions for removing the outdoor thermistor.

6. Removing the thermistor <Outdoor pipe> (TH3) (TH33) and thermistor <Discharge> (TH4)

Instructions for removing outdoor pipe and discharge thermistors.

7. Removing the solenoid valve coil <Four-way valve> (21S4), and linear expansion valve coil (LEV(A), LEV(B))

Steps for removing solenoid valve coil and linear expansion valve coil.

8. Removing the four-way valve

Instructions for removing the four-way valve.

9. Removing linear expansion valve

Instructions for removing the linear expansion valve.

10. Removing the high pressure switch (63H)

Instructions for removing the high pressure switch.

11. Removing solenoid valve coil <Bypass valve> (SV) and bypass valve

Steps to remove the bypass valve solenoid coil and bypass valve.

12. Removing the reactor (DCL) and capacitor (CE)

Instructions for removing the reactor and capacitor.

13. Removing the reactors (ACL1, ACL2, ACL3)

Steps for removing the reactors (ACL1, ACL2, ACL3).

14. Removing the motor for compressor (MC)

Instructions for removing the compressor motor.

15. Removing the power receiver

Instructions for removing the power receiver.

15 PARTS LIST (non-RoHS compliant)

STRUCTURAL PARTS

List of structural parts for PUHZ-RP35/50VHA2 models.

FUNCTIONAL PARTS

Part numbers that are circled are not shown in the figures.

List of functional parts with part numbers and specifications.

16 RoHS PARTS LIST

FUNCTIONAL PARTS

Diagram of functional parts for PUHZ-RP35/50VHA2 (RoHS compliant).

Part numbers that are circled are not shown in the figure.

List of functional parts with part numbers and specifications (RoHS compliant).