innovair VCM1320H21 Service Manual page 20

(8) 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.
7.4.10 Sleep mode
(1) Operation time in sleep mode is 7 hours. After 7 hours the AC quits this mode and turns off.
(2) It is available at cooling, heating or auto mode.
(3) Operation process in sleep mode is as follow:
After pressing ECONOMIC or SLEEP button on controller, the machine will turn into sleep mode.
When cooling, the setting temperature rises 1℃(be lower than 30℃) every one hour, 2 hours later the
setting temperature stops rising and indoor fan is fixed as low speed.
When heating, the setting temperature decreases 1℃(be higher than 17℃) every one hour, 2 hours later the
setting temperature stops decreasing and indoor fan is fixed as low speed.(Anti-cold wind function has the
priority)
When Auto, the sleep mode running function operates in accordance with selected running mode by auto
mode.
(4)When user uses timer off function in sleep mode(or sleep function in timer off mode), if the timing time is
less than sleep time, sleep function will be cancelled when reaching the timing time. If the timing time is
more than sleep time, the machine will stop until reaches the sleep time.(Only for console)
(5)When sleep function is cancelled, the indoor unit will not stop except console.
7.4.11 Auto-Restart function
The indoor unit is equipped with auto-restart function, which is carried out through an auto-restart module. In
case of a sudden power failure, the module memorizes the setting conditions before the power failure. The
unit will resume the previous operation setting (not including Swing function) automatically after 3 minutes
when power returns.
If the memorization condition is forced cooling mode, the unit will turn off.
7.4.12 Mode conflict
The indoor units can not work cooling mode and heating at same time.
Heating mode has a priority.
(1) Definition
Cooling mode
Heating Mode
Fan
Off
No: No mode conflict;
Yes: Mode conflict
(2) Unit action
• In case of one Indoor unit working in cooling mode or fan mode, and another indoor unit is set to heating
Cooling mode Heating Mode
No
Yes
No
No
Fan
Yes No
No Yes
Yes No
No No
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Off
No
No
No
No