Heat Controller VMH C Series Service Manual page 30

Service Manual
8.4.5 Auto-mode
This mode can be chosen with remote controller and the setting temperature can be changed between
62.5°F(17°C)~86°F(30°C).
In auto mode, the machine will choose cooling or fan-only mode according to ΔT (ΔT =T1-Ts).
ΔT=T1-Ts
ΔT＞1.8°F (1℃)
-1<ΔT≤1℃ 1.8°F (1℃)
ΔT≤-1℃ 1.8°F (2°C)
Indoor fan will run at auto fan of the relevant mode.
The louver operates same as in relevant mode.
If the setting temperature is modified, the machine will choose running mode and function again.
8.4.6 Forced operation function
8.4.6.1 Forced cooling and auto function can be activated with a touch button. In these two modes, the
machine can be changed by remote controller to any other mode.
8.4.6.2 When the machine is off, pressing the touch button will carry the machine to forced auto mode,
Pressing the button once again within 5 seconds. Will switch unto to forced cooling
mode. In forced auto, forced cooling, or any other operation mode, pressing touch button will turn off
the machine. In forced operation, remote control is available.
8.4.6.3 In forced operation mode, all general protections are available.
8.4.6.4 The compressor runs at F2 frequency and indoor fan runs as breeze. After running for 30
minutes the machine will turn to auto mode at 75°F(24°C) setting temperature.
8.4.6.5 The action of forced auto mode is the same as normal auto mode which temperature is
75°F(24°C).
8.4.7 Timer function
8.4.7.1 Timing range is 24 hours, and the minimum increment is 15 minutes.
8.4.7.2 Timer on. After turning off, the machine will turn on automatically when reaching the setting
time.
VMH 30, 36 SerieS
Running mode
Cooling
Fan-only
Heating
28
30
Heat Controller