Mitsubishi Electric MUFZ-KJ12NAHZ-U1 User Manual

SERVICE MANUAL
Models
OUTDOOR UNIT
Indoor unit service manual
MFZ-KJ•NA Series (OBH752)
NOTE:
RoHS compliant products have <G> mark on the spec name plate.
HFC
utilized
R410A
PARTS CATALOG (OBB753)
MUFZ-KJ09NAHZ
MUFZ-KJ12NAHZ
MUFZ-KJ09NAHZ
-
U1
MUFZ-KJ12NAHZ
-
U1
MUFZ-KJ15NAHZ
-
U1
MUFZ-KJ18NAHZ
-
U1
CONTENTS
1. TECHNICAL CHANGES ······························2
2. PART NAMES AND FUNCTIONS ··················3
3. SPECIFICATION ········································4
4. OUTLINES AND DIMENSIONS ·····················6
5. WIRING DIAGRAM ·····································8
6. REFRIGERANT SYSTEM DIAGRAM ··········· 10
7. DATA······················································ 12
8. ACTUATOR CONTROL ····························· 20
9. SERVICE FUNCTIONS ······························ 21
10. TROUBLESHOOTING ······························· 22
11. DISASSEMBLY INSTRUCTIONS ················· 43
No. OBH753
REVISED EDITION-A
Revision A:
• 3. SPECIFICATION and 7-2. PERFORMANCE
CURVE has been modified.
Please void OBH753.

Mitsubishi Electric MUFZ-KJ12NAHZ-U1 Specifications

General

Model	MUFZ-KJ12NAHZ-U1
Category	Air Conditioner
Cooling Capacity	3.5 kW
Cooling Capacity (BTU/h)	12000 BTU/h
Heating Capacity	4.0 kW
SEER	6.1
Refrigerant	R32
Type	Split System
Energy Efficiency Rating (Heating)	A+
Noise Level (Indoor)	19 dB
Indoor Unit Noise Level	20-35 dB
Outdoor Unit Noise Level	50 dB
Dimensions (Indoor Unit)	798 x 295 x 223 mm
Indoor Unit Dimensions (W x H x D)	798 x 295 x 223 mm
Dimensions (Outdoor Unit)	800 x 540 x 300 mm
Outdoor Unit Dimensions (W x H x D)	800 x 540 x 300 mm
Voltage	230 V
Power Supply	Single Phase