Mitsubishi Electric City Multi PKFY-P06NAMU-E User Manual

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
TECHNICAL & SERVICE MANUAL
[Models]
PKFY-P06NAMU-E
PKFY-P08NAMU-E
PKFY-P12NGMU-E
PKFY-P15NGMU-E
PKFY-P18NFMU-E
PKFY-P24NFMU-E
PKFY-P30NFMU-E
No. OC342
REVISED EDITION-C
CONTENTS
1. DIFFERENCES
.....................................
2
2. FEATURES
............................................
3
3. PART NAMES AND FUNCTIONS
........
6
4. SPECIFICATION
...................................
9
5. OUTLINES AND DIMENSIONS
..........
16
6. WIRING DIAGRAM
.............................
20
7. REFRIGERANT SYSTEM DIAGRAM
....
22
8. MICROPROCESSOR CONTROL
.......
23
9. TROUBLESHOOTING
........................
30
10. DISASSEMBLY PROCEDURE
...........
39
11. PARTS LIST
........................................
48
12. RoHS PARTS LIST
.............................
56
May 2009
R410A / R22
PKFY-P12NGMU-E
NOTE:
• This manual describes only
service data of the indoor
units.
• RoHS compliant products have
<G> mark on the spec name
plate.
• For servicing of RoHS compli-
ant products, refer to the RoHS
PARTS LIST.
Revision:
• "12. RoHS PARTS LIST" has
been modified.
• Please void OC342
REVISED EDITION-B.

Mitsubishi Electric City Multi PKFY-P06NAMU-E Specifications

General

Brand	Mitsubishi Electric
Model	City Multi PKFY-P06NAMU-E
Category	Air Conditioner
Language	English

Summary

MITSUBISHI ELECTRIC CITY MULTI Technical & Service Manual

Model Overview and Introduction

Technical Specifications: PKFY-P06/P08NAMU-E

Electrical Parts Specifications: PKFY-P06/P08NAMU-E

Outlines and Dimensions: PKFY-P06/P08NAMU-E

Dimensional Drawings and Installation Details

Wiring Diagram: PKFY-P06/P08NAMU-E

Electrical Connection Schematics

Illustrates the electrical connections and wiring schematics for the indoor unit.

Refrigerant System Diagram

Cooling and Heating Flow Paths

Depicts the refrigerant flow paths and pipe sizes for cooling and heating.

Indoor Unit Microprocessor Control: Cool Operation

Thermoregulating and Anti-freezing Control

Indoor Unit Microprocessor Control: Dry Operation

Indoor Unit Microprocessor Control: Fan Operation

Indoor Unit Microprocessor Control: Heat Operation

Thermoregulating, Fan, and Hot Adjuster Modes

Indoor Unit Microprocessor Control: Auto Operation

Troubleshooting: Component Checks (PKFY-P06/P08NAMU-E)

Testing Thermistors, Motors, and LEV

Step-by-step guides for checking component resistance and voltage.

Troubleshooting: Linear Expansion Valve

DIP Switch Settings: PKFY-P06/P08NAMU-E

Switch Functions for Mode and Capacity

Disassembly Procedure: Initial Steps

Removing Unit from Installation Plate

Details how to remove the indoor unit from the installation plate and front panel.

Disassembly Procedure: Electronics Access

Removing Controller Boards and Electrical Box

Provides steps for removing controller boards and the electrical box.

Disassembly Procedure: Component Removal

Removing Fan, Vane Motor, and Thermistors

Disassembly Procedure: PKFY-P18/P24/P30NFMU-E

Unit, Panel, and Box Removal Steps