Mitsubishi Electric PKFY-P08NLMU-E.TH User Manual

TECHNICAL & SERVICE MANUAL
CONTENTS
1. SAFETY PRECAUTION
..........................
2
2. PARTS NAMES AND FUNCTIONS
........
4
3. SPECIFICATION
...................................
12
4. NOISE CRITERION CURVES
...............
15
5. OUTLINES AND DIMENSIONS
............
17
6. WIRING DIAGRAM
...............................
19
7. REFRIGERANT SYSTEM DIAGRAM
........
20
8. MICROPROCESSOR CONTROL
.........
20
9. TROUBLESHOOTING
..........................
27
10. DISASSEMBLY PROCEDURE
...........
35
Indoor unit
[Model Name] [Service Ref.]
INDOOR UNIT
R410A
Model name
indication
PARTS CATALOG (OCB715)
No. OCH715
March 2020
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
PKFY-P04NLMU-E
PKFY-P04NLMU-E.TH
PKFY-P06NLMU-E
PKFY-P06NLMU-E.TH
PKFY-P08NLMU-E
PKFY-P08NLMU-E.TH
PKFY-P12NLMU-E
PKFY-P12NLMU-E.TH
PKFY-P15NLMU-E
PKFY-P15NLMU-E.TH
PKFY-P18NLMU-E
PKFY-P18NLMU-E.TH
Note:
• This manual describes
service data of the indoor
units only.

Mitsubishi Electric PKFY-P08NLMU-E.TH Specifications

General

Cooling Capacity	2.5 kW
Heating Capacity	3.2 kW
Refrigerant	R32
Series	PKFY
Energy Efficiency Ratio (EER)	3.50
Power Supply	220-240 V, 50 Hz
Outdoor Unit Dimensions (HxWxD)	550 x 285 mm
Energy Efficiency Ratio (Cooling)	3.50

Summary

SAFETY PRECAUTION

R410A Refrigerant Handling and General Safety

Key safety guidelines for handling R410A refrigerant and system components.

PARTS NAMES AND FUNCTIONS

Wired Remote Controller Interface and Operations

Wireless Remote Controller Operation

Wireless Remote Interface and Display

SPECIFICATIONS

Model and Electrical Specifications

WIRING DIAGRAM

Indoor Unit Wiring Schematics

Schematic diagrams illustrating the electrical connections within the indoor unit.

MICROPROCESSOR CONTROL

Indoor Unit Control Modes and Operations

Explanation of control logic for various operation modes like Cool, Dry, Fan, Heat, Auto.

TROUBLESHOOTING

Parts Checking Procedures

Methods for checking the resistance and functionality of key internal parts.

DIP Switch Functions and Settings

DISASSEMBLY PROCEDURE

Panel and Electrical Box Removal

Internal Component and Board Removal