Mitsubishi Electric CITY MULTI PFFY-P20VCM-E, Техническое и сервисное руководство

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CONTENTS
HWE18160 GB
I
Features
[1] Features.................................................................................................................................... 1
II
Components and Functions
[1] Components and Functions...................................................................................................... 2
III
Specfications
[1] Specifications............................................................................................................................ 5
1.Specfications .......................................................................................................................... 5
2.Electrical component specifications........................................................................................ 7
IV
Outlines and Dimensions
[1] Outlines and Dimensions.......................................................................................................... 8
V
Wiring Diagram
[1] Wiring Diagram ....................................................................................................................... 12
VI
Refrigerant System Diagram
[1] Refrigerant system diagram.................................................................................................... 13
VII
Troubleshooting
[1] Troubleshooting ...................................................................................................................... 14
1.Check methods..................................................................................................................... 14
2.DC fan motor (fan motor/indoor control board)..................................................................... 18
3.Setting of address switch...................................................................................................... 19
4.Voltage test points on the control board ............................................................................... 20
5.Setting of Dip-switch (at delivery) ......................................................................................... 21
6.Function setting .................................................................................................................... 21
7.Selecting the external static pressure................................................................................... 22
8.Setting addresses ................................................................................................................. 23
9.Setting of intermittent fan control .......................................................................................... 23
10.Function the LED of the indoor unit service board.............................................................. 23
VIII
Disassembly Procedure
[1] Disassembly Procedure.......................................................................................................... 24
1.Control box ........................................................................................................................... 24
2.Thermistor (Intake air) .......................................................................................................... 25
3.Drain pan .............................................................................................................................. 26
4.LEV, thermistor (Liquid/Gas piping temperature detection).................................................. 27
5.Fan and fan motor ................................................................................................................ 28
6.Bearing ................................................................................................................................. 29
7.Heat exchanger .................................................................................................................... 30
8.Control box inside layout ...................................................................................................... 32
9.Sensor position ..................................................................................................................... 33
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