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SK2014-SON-002-TechMnl-SWC-003
b)
If Tr ≥ Ts + 1ºC (or + 4ºC if economy contact is activated), then cool operation is activated, MTV1 and AUX2 are
turned on. Indoor fan runs at set speed.
c)
If Tr < Ts, then cool operation is terminated, MTV1 and AUX2 are turned off. Indoor fan runs at set speed.
d)
The range of Ts is 16 - 30ºC
e)
Indoor fan speed can be adjusted to low, medium, high and auto.
f)
When turned on, MTV1 requires 30 seconds before it is fully open.
g)
When turned off, MTV1 requires 120 seconds before it is fully closed.
h)
When the unit is turned off, the indoor fan will shut down after 5 seconds.
FAN MODE
a)
Indoor fan runs at the set speed while heater, MTV1, MTV2, AUX1 and AUX2 are turned off.
b)
Indoor fan speed can be adjusted to low, medium and high.
HEAT MODE
a)
MTV1, AUX2 and electric heater are always off.
b)
If Tr ≤ Ts - 1ºC (or - 4ºC if economy contact is activated), then heat operation is activated
and MTV2 and AUX1 are turned on. Indoor fan runs at the set speed.
c)
If Tr > Ts, then heat operation is terminated and MTV2 and AUX1 are turned off. Indoor fan
runs at 200RPM.
d)
The range of Ts is 16 - 30ºC.
e)
Indoor fan speed can be adjusted to low, medium, high and auto.
f)
When turned on, MTV2 requires 30 seconds before it is fully open.
g)
When turned off, MTV2 requires120 seconds before it is fully closed.
PRE-HEAT
a)
If Ti1 < 36ºC [or 28ºC depending on DIP setting], then MTV2 and AUX1 are turned on. Indoor
fan runs at 200RPM.
b)
If Ti1 ≥ 38ºC [or 30ºC depending on DIP setting], then MTV2 and AUX1 are turned on. Indoor
fan runs at set speed.
c)
If indoor coil temperature sensor is damaged, then the pre-heat time is set for 2 minutes.
Indoor fan runs at set speed.
POST-HEAT
a)
If Ti2 ≥ 38ºC, then MTV2 and AUX 1 are turned off. Indoor fan continues to run at set speed.
b)
If 36 F ≤ Ti2 ≤ 38 F, then MTV2 and AUX1 are turned off. Indoor fan maintain its original
state.
c)
If Ti2 < 36ºC, then MTV2 and AUX1 are turned off. Indoor fan repeatedly runs for 30 seconds
and then stops for 3 minutes.
d)
If the indoor coil temperature sensor is damaged, then the post-heat time is set for 3
minutes. Indoor fan running at set speed.
LOW TEMPERATURE PROTECTION OF INDOOR COIL
a)
If Ti1 ≤ 2ºC for 2 minutes, then MTV1 and AUX2 are turned off. If indoor fan is set for low speed, then it
will run at medium speed. If it is set at medium or high speed, then it will keep running at the same
speed.
b)
If Ti1 ≥ 5ºC for 2 minutes, then MTV1 and AUX2 are turned on. Indoor fan runs at set speed.
OVER HEAT PROTECTION OF INDOOR COIL
a)
If Ti2 ≥ 75ºC, then MTV2 and AUX1 are turned off. Indoor fan remains on and runs at high speed.
b)
If Ti2 < 70ºC, then MTV2 and AUX1 are turned on. Indoor fan remains on and runs at set speed.
c)
If the indoor coil temperature sensor is damaged, then the protection mode will be overridden and the
unit will work according to the pre-heat and post-heat set times.
DEHUMIDIFICATION MODE
