Mitsubishi Electric PLH-6GKSB User Manual

TECHNICAL & SERVICE MANUAL
SPLIT-TYPE,HEAT PUMP AIR CONDITIONERS
CONTENTS
1. FEATURES ···········································3
2. PART NAMES AND FUNCTIONS········5
3. SPECIFICATIONS·································7
4. DATA ···················································11
5. OUTLINES AND DIMENSIONS··········15
6. WIRING DIAGRAM·····························18
7. REFRIGERANT SYSTEM DIAGRAM ······19
8. OPERATION FLOW-CHART··············20
9. MICROPROCESSOR CONTROL·······24
10. TROUBLESHOOTING························47
11. 4-WAY AIR FLOW SYSTEM···············55
12. SYSTEM CONTROL···························60
13. DISASSEMBLY PROCEDURE···········65
14. PARTS LIST········································68
15. OPTIONAL PARTS ·····························78
[Model names]
PLH-3GK(H)B
PLH-4GK(H)SB
PLH-5GK(H)SB
PLH-6GK(H)SB
No. OC148
1997
This manual does not cover the following
outdoor units. When servicing them,
please refer to the service manual
No.OC150 and this manual in a set.
[Service Ref.]
PUH-3YKA2.UK
PUH-3VKA2.UK
PUH-4YKSA2.UK
PUH-5YKSA2.UK
PUH-6YKSA2.UK
INDOOR UNIT
Ceiling Cassettes
Series PLH
FILTER
CHECK MODE
TEST RUN
REMOTE CONTROLLER
The Slim Line.
From Mitsubishi Electric.
[Service Ref.]
PLH-3GK(H)B 1 .UK
PLH-4GK(H)SB
1 .UK
PLH-5GK(H)SB
1 .UK
PLH-6GK(H)SB
1 .UK

Mitsubishi Electric PLH-6GKSB Specifications

General

Brand	Mitsubishi Electric
Model	PLH-6GKSB
Category	Air Conditioner
Language	English

Summary

1 FEATURES

2 PART NAMES AND FUNCTIONS

3 SPECIFICATIONS

4 DATA

6 WIRING DIAGRAM

7 REFRIGERANT SYSTEM DIAGRAM

8 OPERATION FLOW-CHART

9 MICROPROCESSOR CONTROL

1. OUTLINE OF MICROPROCESSOR CONTROL

Overview of the microprocessor control system architecture and components.

10 TROUBLESHOOTING

1. TROUBLES IN TEST RUN

Common issues encountered during test runs and their potential causes and checks.

2. SELF DIAGNOSTIC FUNCTION WITH REMOTE CONTROLLER

Procedures for using the remote controller to diagnose malfunctions and interpret error codes.

12 SYSTEM CONTROL

1. VARIETY OF SYSTEM CONTROL FUNCTIONS

Overview of different system control methods like group, dual, and individual control.

2. GROUP CONTROL WITH A SINGLE REMOTE CONTROLLER

3. CONTROL USING TWO REMOTE CONTROLLERS

4. REMOTE ON-OFF AND INDIVIDUAL REMOTE CONTROLS

5. INDIVIDUAL CONTROL BY GROUPING THE REMOTE CONTROLLERS

6. MULTIPLE REMOTE CONTROL DISPLAY

7. AUTO RESTART FUNCTION

13 DISASSEMBLY PROCEDURE