Mitsubishi Electric MXZ30TN2 - User Manual

SERVICE MANUAL
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
CONTENTS
1. FEATURES·························································2
2. TECHNICAL CHANGES ····································5
3. PART NAMES AND FUNCTIONS······················7
4. INDOOR UNIT COMBINATION························10
5. SPECIFICATION···············································11
6. DATA·································································17
7. OUTLINES AND DIMENSIONS ·······················39
8. WIRING DIAGRAM ··········································43
9. REFRIGERANT SYSTEM DIAGRAM··············51
10. MICROPROCESSOR CONTROL ····················54
11. SERVICE FUNCTIONS·····································72
12. TROUBLESHOOTING······································75
13. DISASSEMBLY INSTRUCTIONS···················101
14. PARTS LIST····················································114
15. OPTIONAL PARTS·········································126
Wireless type
Models
MSH09TW · MUH09TW
MSH12TN · MUH12TN
MSH15TN · MUH15TN
MSH17TN · MUH17TN
MSH09TW
- · MUH09TW -
MSH12TN - · MUH12TN -
· MUH12TN -
MSH15TN - · MUH15TN -
· MUH15TN -
MSH17TN - · MUH17TN -
U1U1
U2
U1U1
U2
U1U1
U1U1
No. OB275
REVISED EDITION-D
The Slim Line.
From Mitsubishi Electric.
L
I
S
T
E
D
CUS
MSH12TN
MSH15TN
MSH17TN
INDOOR UNIT
MUH15TN
OUTDOOR UNIT
Remote
controller
MSH12TN -
MSH15TN -
MSH17TN -
U1
U1
U1
MUH15TN - MUH15TN -
U2U1
TM
Inverter-controlled multi system Model
· MXZ30TN
· MXZ30TN2
Revision:
● MUH12TN- has been added.
● MUH15TN- has been added.
● REFRIGERANT SYSTEM DIAGRAM of
MXZ30TN and MXZ30TN2 has partly been
changed.
● PARTS LIST of MXZ30TN and MXZ30TN2
has partly been changed
● Please void OB275 Revised edition-C.
U2
U2
Indication of
model name
Indication of
model name
OB275--1.qxp 03.12.2 16:49 Page 1

Summary

1 FEATURES

DIFFERENT POINTS between models for USA and CANADA

Compares model differences for USA and Canada regarding defrosting and temperature settings.

“I FEEL CONTROL” IN OUR LCD WIRELESS REMOTE CONTROLLER WITH ON;OFF PROGRAM TIMER

Details the "I FEEL CONTROL" feature of the remote controller for precise temperature setting.

AUTO-RESTART FUNCTION

Describes the automatic restart feature after a power outage, resuming previous operation mode.

3 PART NAMES AND FUNCTIONS

INDOOR UNIT

Identifies and describes the components of the indoor unit.

OUTDOOR UNIT

Identifies and describes the components of the outdoor unit.

REMOTE CONTROLLER

Details the parts and functions of the wireless remote controller.

5 SPECIFICATIONS

Operating Range

Specifies the operational temperature and humidity limits for cooling and heating.

MAX. REFRIGERANT PIPING LENGTH

Details the maximum allowable lengths for refrigerant piping between indoor and outdoor units.

6 DATA

6-1. PERFORMANCE DATA

Provides performance data for cooling capacity under various conditions.

6-2. PERFORMANCE CURVE

Presents graphical representations of cooling and heating performance characteristics.

6-4. STANDARD OPERATION DATA

Lists standard operating data for electrical, refrigerant, and unit specifications.

7 OUTLINES AND DIMENSIONS

INDOOR UNIT

Provides overall dimensions and outlines for the indoor unit.

OUTDOOR UNIT

Provides overall dimensions and outlines for the outdoor unit.

8 WIRING DIAGRAM

MSH09 TW MUH09 TW

Displays the wiring diagrams for the MSH09TW indoor and MUH09TW outdoor units.

MXZ30 TN MXZ30 TN2

Shows the wiring diagrams for the MXZ30TN/MXZ30TN2 outdoor units.

10 MICROPROCESSOR CONTROL

WIRELESS REMOTE CONTROLLER

Explains the operation and buttons of the wireless remote controller.

10-1. “I FEEL CONTROL” OPERATION

Details the "I FEEL CONTROL" operation, including temperature settings and operation logic.

10-2. COOL OPERATION

Provides instructions for operating the unit in COOL mode.

12 TROUBLESHOOTING

12-1. Cautions on troubleshooting

Provides important precautions and checks to perform before troubleshooting.

12-2. Instruction of troubleshooting

Provides a flowchart for troubleshooting various operational issues and their causes.

1. Troubleshooting check table

A table outlining abnormal symptoms, detection methods, and check points for troubleshooting.

13 DISASSEMBLY INSTRUCTIONS

13-1. MSH09 TW MSH09 TW - U1 INDOOR UNIT

Provides step-by-step instructions for disassembling the MSH09TW indoor unit.

13-6. MXZ30 TN MXZ30 TN2 OUTDOOR UNIT

Details disassembly procedures for MXZ30TN/MXZ30TN2 outdoor units.

14 PARTS LIST

14-1. INDOOR UNIT STRUCTURAL PARTS

Lists structural parts for the MSH09TW indoor unit.

14-5. OUTDOOR UNIT STRUCTURAL PARTS, ELECTRICAL PARTS AND FUNCTIONAL PARTS

Illustrates and lists parts for MUH09/12TN outdoor units.

15 OPTIONAL PARTS

15-1. REFRIGERANT PIPES

Provides details on optional refrigerant pipes and their specifications.

15-4. Different-diameter pipe

Lists optional different-diameter pipes for connecting units with varying pipe sizes.

Mitsubishi Electric MXZ30TN2 Specifications