Heat Controller VMH12SC-1 Manuale Utente

2

Service Manual 

VMH SerieS

 

Heat Controller, Inc.

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 Power Wiring .......................................................................................................................... 15

 

6.2 Pipe length and elevation ....................................................................................................... 16

 

6.3 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 .............................................................................................................................. 35
 

9.1 Indoor Unit Error Display ........................................................................................................ 36

 

9.2 Diagnosis and Solution ........................................................................................................... 36