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Service Manual
8.4.5 Dehumidify mode
8.4.5.1 Indoor fan speed is fixed in breeze and can't be changed. The louver angle is the same as in
cooling mode.
8.4.5.2 Compressor running rules
8.4.5.3 Room 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.
8.4.5.4 Evaporator anti-freeze protection, condenser high temperature protection and outdoor unit
frequency limit are valid, and they are the same as that in cooling mode.
8.4.5.5 The 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:
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)
VMH SerieS
31
32
Heat Controller, Inc.
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Troubleshooting
