Heat Controller VMH12SC-1, VMH24SC-1, VMH09SC-1 Dehumidify mode, Forced operation function

Service Manual VMH Series Heat Controller, Inc.

8.4.5 Dehumidify mode

8.4.5.1Indoor fan speed is fixed in breeze and can’t be changed. The louver angle is the same as in cooling mode.

8.4.5.2Compressor running rules

T1-Ts

°F °C

36.5(2.5)

35.6(2.0)

34.7(1.5)

33.8(1.0)

32.9(0.5)

32 (0.0)

8.4.5.3Room low temperature protection

If room temperature is lower than 50°F/10°C, compressor will stop and not resume operation until room temperature is over 54°F/12°C.

8.4.5.4Evaporator anti-freeze protection, condenser high temperature protection and outdoor unit frequency limit are valid, and they are the same as that in cooling mode.

8.4.5.5The outdoor fan operates same as in cooling mode.

8.4.6 Forced operation function

8.4.6.1 Enter forced operation function:

Pressing the touch button once, the machine will transfer into forced auto mode, pressing the button once again, the machine will turn into forced cooling mode, the third press will stop the unit, and the forth press is the start of the cycle of forced auto mode. Refer to the following chart:

32