Mitsubishi PU30EK3 User Manual

TECHNICAL & SERVICE MANUAL
SPLIT-TYPE, AIR CONDITIONERS
CONTENTS
1. FEATURES ························································2
2. TECHNICAL CHANGE······································3
3. COMBINATION OF INDOOR AND OUTDOOR UNITS ··············4
4. PART NAMES AND FUNCTIONS·····················4
5. SPECIFICATIONS ·············································5
6. DATA··································································6
7. OUTLINES AND DIMENSIONS ························9
8. WIRING DIAGRAM··········································13
9. REFRIGERANT SYSTEM DIAGRAM ···················18
10. MICROPROCESSOR CONTROL····················19
11. TROUBLESHOOTING ·····································21
12. DISASSEMBLY INSTRUCTIONS····················25
13. PARTS LIST·····················································29
<Outdoor unit>
Models
Outdoor unit
TM
PU12EK
PU18EK PU18EK
1
PU24EK PU24EK1 PU24EK2 PU24EK3
PU30EK PU30EK1 PU30EK2 PU30EK3
PU36EK PU36EK1 PU36EK2 PU36EK3
PU42EK2 PU42EK21
PU42EK7 PU42EK71 PU42EK72
No. OC247
REVISED EDITION-E
L
I
S
T
E
D
CUS
•Please void OC247 REVISED EDITION-D.
Revision:
•Wiring diagram for PU12EK has been modified in
”8. WIRING DIAGRAM”.
•Transformer and outdoor controller board for
PU12EK has been modified in ”13. PARTS LIST”.
Note:
•Refer to other manual as for Indoor Units.
Model name
indication
OC247-E--1.qxp 04.8.11 4:25 PM Page 1

Mitsubishi PU30EK3 Specifications

General

Brand	Mitsubishi
Model	PU30EK3
Category	Air Conditioner
Language	English

Summary

Technical Changes in Manual Revisions

Specifications of Outdoor Units

Technical Data for Air Conditioner Units

Additional Refrigerant Charge Data

Compressor Technical Data

Outlines and Dimensions of Outdoor Units

Wiring Diagram for Outdoor Units

Wiring Diagram: Model PU12EK, PU18EK1

Presents wiring diagram for PU12EK and PU18EK1 outdoor units with component symbols.

Refrigerant System Diagrams

Refrigerant Diagram: PU12EK, PU18EK, PU24EK Series

Illustrates refrigerant system for PU12EK, PU18EK, PU24EK series outdoor units.

Refrigerant Diagram: PU30EK, PU36EK, PU42EK Series

Illustrates refrigerant system for PU30EK, PU36EK, PU42EK series outdoor units.

Microprocessor Control Functions

1. Protection Function Details

Details protection functions like reversed phase, open phase, and status codes.

2. Control by Outdoor Coil Thermistor

Explains thermistor control of fan speed and unit operation based on temperature.

3. Unit Operation Control

4. Fan Control Mechanisms

Details fan speed control based on outdoor coil temperature and operational status.

5. Crankcase Heater Control

Troubleshooting Guide for Outdoor Units

1. Service Data Indication via Switches

Using switches SW2/SW3 to display output state and check codes via LEDs.

2. Troubleshooting by Check Code

Lists check codes (LED blinking) with causes and check points for troubleshooting.

3. Outdoor Unit Not Working

Provides common causes and check points for when the outdoor unit fails to operate.

Disassembly Instructions for Outdoor Units

1. Electrical Parts Disassembly

Instructions for disassembling electrical components of the outdoor unit.

2. Fan Motor Disassembly

Steps for disassembling the fan motor, propeller, and related parts.

3. Heat Exchanger & Compressor Disassembly

Parts List for Outdoor Units

Structural Parts: PU12EK, PU18EK, PU18EK1

Structural Parts: PU24EK & PU30EK Series

Structural Parts: PU36EK & PU42EK Series

Functional Parts: PU12EK, PU18EK, PU18EK1

Functional Parts: PU24EK Series

Functional Parts: PU30EK Series

Functional Parts: PU36EK Series

Functional Parts: PU42EK2 & PU42EK21

Functional Parts: PU42EK7, PU42EK71, PU42EK72