Mitsubishi Electric MUZ-GL09NA User Manual

HFC
utilized
R410A
INDOOR UNIT
SERVICE MANUAL
No. OBH733
REVISED EDITION-G
Indoor unit service manual
MSZ-GL•NA, MSY-GL•NA Series (OBH732)
MUZ-GL18/24NA
MUZ-GL18/24NAH
MUY-GL18/24NA
PARTS CATALOG (OBB733)
OBH733 REVISED EDITION-F is void.
Revision G:
• MUZ-GL09/12/15NA(H)-
U2
and
MUY-GL09/12/15NA-
U2
have been added.
CONTENTS
1. TECHNICAL CHANGES ··································· 2
2. PART NAMES AND FUNCTIONS ····················· 3
3. SPECIFICATION ················································ 4
4. OUTLINES AND DIMENSIONS ························ 7
5. WIRING DIAGRAM ············································ 9
6. REFRIGERANT SYSTEM DIAGRAM ············· 21
7. DATA ································································ 24
8. ACTUATOR CONTROL ··································· 39
9. SERVICE FUNCTIONS ··································· 40
10. TROUBLESHOOTING ····································· 41
11. DISASSEMBLY INSTRUCTIONS ···················· 65
OUTDOOR UNIT
Models
MUZ-GL09NA
-
U1
,
U2
,
U8
MUZ-GL09NAH
-
U1
,
U2
,
U8
MUY-GL09NA
-
U1
,
U2
MUZ-GL12NA
-
U1
,
U2
MUZ-GL12NAH
-
U1
,
U2
MUY-GL12NA
-
U1
,
U2
MUZ-GL15NA
-
U1
,
U2
MUZ-GL15NAH
-
U1
,
U2
MUY-GL15NA
-
U1
,
U2
MUZ-GL18NA
-
U1
MUZ-GL18NAH
-
U1
MUY-GL18NA
-
U1
MUZ-GL24NA
-
U1
,
U2
MUZ-GL24NAH
-
U1
MUY-GL24NA
-
U1

Mitsubishi Electric MUZ-GL09NA Specifications

General

Cooling Capacity	9, 000 BTU/h
Refrigerant	R410A
Operating Temperature (Cooling)	14°F to 115°F
Type	Split System
Noise Level (Indoor)	19 dB(A)
Power Supply	208/230V, 60Hz
Operating Temperature (Heating)	5°F to 75°F

Summary

1 TECHNICAL CHANGES

3 SPECIFICATION

5 WIRING DIAGRAM

6 REFRIGERANT SYSTEM DIAGRAM

7 DATA

7-1. COOLING PERFORMANCE DATA

7-2. COOLING PERFORMANCE CURVES

7-5. INVERTER FREQUENCY CORRECTIONS

9 SERVICE FUNCTIONS

10 TROUBLESHOOTING

10-1. CAUTIONS ON TROUBLESHOOTING

10-2. FAILURE MODE RECALL FUNCTION

Procedure for recalling and interpreting error codes from the unit's memory.

10-3. TROUBLESHOOTING CHECK TABLE

Table linking LED indications to specific faults, conditions, and remedies.

10-4. TROUBLE CRITERION OF MAIN PARTS

Specific resistance/voltage criteria and check methods for key components.

10-5. TROUBLESHOOTING FLOW

Diagnostic flowcharts for various system issues and components.

10-6. TEST POINT DIAGRAM AND VOLTAGE

11 DISASSEMBLY INSTRUCTIONS