COMFORT-AIRE Century VMH-SV Series Service Manual page 146

TS14: Indoor units mode conflict (match with multi outdoor unit)
Description: The indoor units cannot work cooling mode and heating at same time. Heating mode has a priority.
• Suppose Indoor unit A working in cooling mode or fan mode, and indoor unit B is set to heating mode, then A will
change to off and B will work in heating mode.
• Suppose Indoor unit A working in heating mode, and indoor unit B is set to cooling mode or fan mode, then B will
change to stand by and A will be no change.
Cooling mode
Heating Mode
Note:
No: No mode conflict
Yes: Mode conflict
Cooling mode
No
Yes
Fan No
Off No
 Troubleshooting
Troubleshooting
Heating Mode Fan
Yes No
No Yes
Yes No
No No

Off
No
No
No
No