Table Of Contents - Heat Controller VMH C Series Service Manual

Service Manual
1.Safety Precautions ............................................................................................................................. 3
2. Functions ........................................................................................................................................... 8
3. Dimensions ...................................................................................................................................... 10
3.1 Indoor Unit .............................................................................................................................. 10
3.2 Outdoor Unit ........................................................................................................................... 11
4. Refrigerant Cycle Diagram ............................................................................................................. 12
5. Wiring Diagrams .............................................................................................................................. 13
5.1 Indoor Unit .............................................................................................................................. 13
5.2 Outdoor Unit ........................................................................................................................... 14
6. Installation Details ........................................................................................................................... 15
6.1 Wrench torque sheet for installation ....................................................................................... 15
6.2 Power Wiring .......................................................................................................................... 15
6.3 Pipe length and elevation ....................................................................................................... 16
6.4 Pressure test and evacuation ................................................................................................. 17
7. Operation characteristics ............................................................................................................... 18
8. Electronic functions ........................................................................................................................ 19
8.1 Abbreviation ............................................................................................................................ 19
8.2 Display function ...................................................................................................................... 19
8.3 Main Protection ...................................................................................................................... 20
8.4 Operation Modes and Functions ............................................................................................ 21
9. Troubleshooting .............................................................................................................................. 33
9.1 Indoor Unit Error Display ........................................................................................................ 33
9.2 Diagnosis and Solution ........................................................................................................... 34
VMH 30, 36 SerieS
CONTENTS
2
Heat Controller