Energolux SAD48HD1-A, Руководство по обслуживанию

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Light commercial(High ESP Duct 196Pa) Service Manual
43
3. Unit control functions
3.1 Main function
◇
Forced switch
When air conditioner is on, press forced switch, the unit will be turned off; or when air conditioner is
off, press the forced switch, unit will be turned on and enter into auto mode operation. Once
receiving signal from remote control or wired control, the unit will run in setting mode.
◇ Commissioning
Press forced switch for 5 seconds until buzzer sounds twice, then controller gets into
commissioning. At the state of commissioning, press the forced switch, the unit will be turned off.
The commissioning time will last for 30 minutes and the mode is cooling.
a) In the mode of commissioning, inlet air temperature sensor is ineffectual. Compressor runs
after 3 min protecting.( 3 min protecting are not available in the first time power),indoor fan is
running in low speed.
b) In the mode of commissioning, no protection is valid except the three phase protection and the
3 min protection for the compressor.
◇
Auto operation
When remote control select auto mode, the unit will choose cooling, dehumidify or heating
according to indoor temperature and automatically runs at selected mode.
a) When getting into auto mode, the indoor unit runs at low wind for 20 seconds while other
equipment not start, after 20 seconds, indoor fan stops, the units enters into mode judgment.
b) Once the room temperature over 27
℃
the units run in cooling mode of setting wind and setting
temperature 24 ℃ .
c) When the room temperature is between 20
℃
and 27
℃
, the units run in dehumidifying mode of
setting wind and setting temperature 24
℃
d) When the room temperature is under 20
℃
, the unit run in heating mode (Cooling-only in
ventilation mode) of setting wind and setting temperature 24
℃
e) The system mode do not change according to temperature fluctuation, restarting or mode
changing, operation mode should be selected by the controller.
◇
Cooling operation
Temperature is set by remote controller or wired controller, it can be adjusted from 16
℃
- 32
℃
by
pressing “tempe”, “temperature - ” on the remote controller (or wired controller). Press “fan
speed” button to choose fan speed among auto wind, high speed wind, medium speed wind, low
speed wind.
Operation state
a) The indoor fan motor always runs at the speed set by remote controller or wired controller.
b) When the indoor temperature TA-
setting temperature TS≥1
℃
, the compressor starts as well as
outdoor fan after compressor meets 3 min protection
c) When TA =TS, The unit operation state keep the same.
d) When indoor unit temperature TA
– setting temperature TS ≤ -1, the compressor and outdoor
fan stop after compressor meets 3 min protection