Mitsubishi Electric PMFY-P06NBMU-E - User Manual

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
TECHNICAL & SERVICE MANUAL
No. OC341
REVISED EDITION-F
INDOOR UNIT
CONTENTS
1. TECHNICAL CHANGES
.......................
2
2. FEATURES
...........................................
3
3. PART NAMES AND FUNCTIONS
........
3
4. SPECIFICATION
...................................
5
5. OUTLINES AND DIMENSIONS
............
9
6. WIRING DIAGRAM
.............................
10
7.
REFRIGERANT SYSTEM DIAGRAM
....
14
8. MICROPROCESSOR CONTROL
.......
15
9. TROUBLESHOOTING
........................
22
10. DISASSEMBLY PROCEDURE
...........
31
11. RoHS PARTS LIST
.............................
35
April 2012
R410A / R22
NOTE:
• This manual describes
only service data of the
indoor units.
• RoHS compliant products
have <G> mark on the
spec name plate.
• For servicing RoHS compli-
ant products, refer to the
RoHS PARTS LIST.
Revision:
• PMFY-P06/08/12/15NBMU-
ER5 have been added in
REVISED EDITION-F.
• Some descriptions have
been modified.
• Please void OC341
REVISED EDITION-E.
Indoor unit
[Model names] [Service Ref.]
PMFY-P06NBMU-E
PMFY-P08NBMU-E
PMFY-P12NBMU-E
PMFY-P15NBMU-E
PMFY-P06NBMU-E PMFY-P06NBMU-E
1
PMFY-P06NBMU-E#2 PMFY-P06NBMU-ER3
PMFY-P06NBMU-ER4 PMFY-P06NBMU-ER5
PMFY-P08NBMU-E PMFY-P08NBMU-E
1
PMFY-P08NBMU-E#2 PMFY-P08NBMU-ER3
PMFY-P08NBMU-ER4 PMFY-P08NBMU-ER5
PMFY-P12NBMU-E PMFY-P12NBMU-E
1
PMFY-P12NBMU-E#2 PMFY-P12NBMU-ER3
PMFY-P12NBMU-ER4 PMFY-P12NBMU-ER5
PMFY-P15NBMU-E PMFY-P15NBMU-E
1
PMFY-P15NBMU-E#2 PMFY-P15NBMU-ER3
PMFY-P15NBMU-ER4 PMFY-P15NBMU-ER5

Summary

MITSUBISHI ELECTRIC Technical & Service Manual

1. TECHNICAL CHANGES

4. SPECIFICATION

4-2. Electrical Parts Specifications

Lists electrical components and their technical specifications.

4-4. Noise Criterion Curves

6. WIRING DIAGRAM

DIP Switch Settings

7. REFRIGERANT SYSTEM DIAGRAM

8. MICROPROCESSOR CONTROL

8-1. Cool Operation

Explains the control logic and functions during cooling mode.

8-2. Dry Operation

Explains the control logic and functions during dry mode.

8-3. Fan Operation

Explains the control logic and functions during fan-only mode.

8-4. Heat Operation

Explains the control logic and functions during heating mode.

8-5. Auto Operation

Explains automatic switching between heat and cool modes.

9. TROUBLESHOOTING

9-1. How to Check the Parts

Guides on how to check specific components for faults.

Troubleshooting Linear Expansion Valve

Details common issues and fixes for the linear expansion valve.

9-2. Fan Motor Check

Provides steps to diagnose and check the indoor fan motor.

9-3. Function of Dip Switch

Address and Voltage Settings

Linear Expansion Valve Operation

10. DISASSEMBLY PROCEDURE

1. Removing the Grille

Attaching the Grille

2. Removing the Electrical Parts Box

Explains the procedure for removing the electrical parts box.

5. Removing the Drain Pump

3. Removing the Nozzle

6. Removing the Fan Motor and Line Flow Fan

Describes how to remove the fan motor and line flow fan.

4. Removing the Vane Motor

7. Removing Thermistors

Mitsubishi Electric PMFY-P06NBMU-E Specifications