Table Of Contents - Mitsubishi Electric City Multi PEFY-P06NMSU-E Technical & Service Manual

CONTENTS
I Features
[1] Features.................................................................................................................................... 1
II Components and Functions
[1] Components and Functions...................................................................................................... 2
III Specfications
[1] Specifications............................................................................................................................ 4
1.Specfications .......................................................................................................................... 4
2.Electrical component specifications........................................................................................ 6
IV Outlines and Dimensions
[1] Outlines and Dimensions.......................................................................................................... 7
V Wiring Diagram
[1] Wiring Diagram ......................................................................................................................... 8
VI Refrigerant System Diagram
[1] Refrigerant system diagram...................................................................................................... 9
VII Microprocessor Control
[1] Microprocessor Control........................................................................................................... 10
1.Cool operation ...................................................................................................................... 10
2.Dry operation ........................................................................................................................ 11
3.Fan operation........................................................................................................................ 12
4.Heat operation ...................................................................................................................... 13
5.Auto operation [Automatic cool / heat change over operation] ............................................. 14
6.When unit is stopped control mode ...................................................................................... 15
7.Heater control ....................................................................................................................... 15
VIII Troubleshooting
[1] Troubleshooting ...................................................................................................................... 19
1.Check methods..................................................................................................................... 19
2.DC fan motor (fan motor/indoor control board)..................................................................... 23
3.Address switch setting .......................................................................................................... 24
4.Voltage test points on the control board ............................................................................... 25
5.Dipswitch setting (Factory setting)........................................................................................ 26
IX Disassembly Procedure
[1] Disassembly Procedure.......................................................................................................... 29
1.Control box ........................................................................................................................... 29
2.Thermistor (Intake air) .......................................................................................................... 30
3.Drainpan ............................................................................................................................... 31
4.Thermistor (Gas pipe) (Liquid pipe) ...................................................................................... 32
5.Fan and fan motor ................................................................................................................ 33
6.Bearing ................................................................................................................................. 34
7.Heat exchanger .................................................................................................................... 35
HWE08010 GB