Auto-Mode; Drying Mode; Forced Operation Function; Timer Function - Century COMFORT-AIRE VMH-SG Series Service Manual

• Decrease: Decrease the running frequency to the lower
level per 20 seconds.
• Hold: Keep the current frequency.
• Resume: No limitation for frequency.
3.5

Auto-mode

• This mode can be selected with the remote controller
and the setting temperature can be changed between
16°C~30°C.
• In auto mode, the machine selects cooling, heating,
auto-drying or fan-only mode on the basis of T1,Ts, T4
and relative humidity.
• If the setting temperature is modified, the machine
selects a new running function.
3.6

Drying mode

• In drying mode, AC operates the same as auto fan in
cooling mode.
• All protections are activated and operate the same as
they do in cooling mode.
• Low Room Temperature Protection
If the room temperature is lower than 10°C, the
compressor ceases operations and does not resume until
room temperature exceeds 12°C.
3.7

Forced operation function

• Forced cooling mode:
The compressor and outdoor fan continue to run(fixed at
rated frequency), and the indoor fan runs at rated speed.
After running for 30 minutes, the AC will switch to auto
mode with a preset temperature of 24°C.
• Forced auto mode:
Forced auto mode operates the same as normal auto mode
with a preset temperature of 24°C.
• The unit exits forced operation when it receives the
following signals:
• Switch on
• Switch off
• Timer on
• Timer off
• Sleep mode
• Follow me
• Changes in:
• mode
• fan speed
• setting temperature
• Forced defrosting mode:
• Press AUTO/COOL button continuously for 5s
under forced cooling mode to enter this mode.
• Indoor fan will stop, defrosting lamp will light on.
• Quit this mode and turn off the unit when:
• quit normal defrosting
• turn off by RC
• Press AUTO/COOL button continuously for 5s
3.8

Timer function

• Timing range is 24 hours.
• Timer on. The machine will turn on automatically
when reaching the setting time.
• Timer off. The machine will turn off automatically
when reaching the setting time.
• Timer on/off. The machine will turn on automatically
when reaching the setting "on" time, and then turn
off automatically when reaching the setting "off"
time.
• Timer off/on. The machine will turn off automatically
when reaching the setting "off" time, and then turn
on automatically when reaching the setting "on" time.
• The timer function will not change the AC current
operation mode. Suppose AC is off now, it will not
start up firstly after setting the "timer off" function.
And when reaching the setting time, the timer LED
will be off and the AC running mode has not been
changed.
• The setting time is relative time.
• The AC will quit the timer function when it has
malfunction
3.9

Sleep function

• The sleep function is available in cooling, heating, or
auto mode.
Product Features 7
 Product Features
Service Manual - VMHxxSG
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7 