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DEHUMIDIFICATION MODE
When unit is turned on in dehumidification mode:
AUX1 is turned on. Ts is 24 ºC.
If Tr ≥ 25ºC
for 30S, then MTV1 will be ON for 3 minutes, then OFF for 4 minutes. DA1 is
2VDC. Fan is turned on at low speed.
If 16ºC ≤ Tr < 25ºC
for 30S, then MTV1 will be ON for 3 minutes, and then OFF for 6
minutes. DA1 is 2.5VDC. Fan is turned on at low speed. If Tr < 16ºC for 30S, then MTV1 will be ON for 3 minutes, and then
OFF for 10 minutes. DA1 is 3.5VDC. At the end of dehumidification cycle, the system will decide the next dehumidification
cycle.
AUTO MODE
When unit is turned on in Auto mode, fan is turned on at setting speed for 30S, then check Tr and Ts.
If Ts≥Tr+3 º
C, the unit is worked in heating mode. If Tr-3 ºC<Ts<Tr+3 ºC, the unit is worked in fan mode. If Ts<Tr-3 ºC, the unit
is worked in cooling mode.
If unit works in heating or fan mode, when Tr-Ts>3.0ºC, MTV2, MTV1 and DA1 are off for more than 10minutes. EH is off for
more than 10 minutes, the unit will work in cooling mode. If unit works in cooling or fan mode, when Ts-Tr>3.0ºC, MTV2,
MTV1 and DA1 are off for more than 10minutes. the unit will work in heating mode.
PRO INPUT FUNCTION
Standard Setting when the unit is on:
If PRO input is closed for 60S, the unit is turned off.
If PRO input is opened for 60S, the unit is turned on.
Other function can be set in Modbus.
B.3.
Sleep Mode
a)
The sleep mode can only be set when the unit is in cool mode or heat mode.
b)
If the sleep mode is activated in cool mode, the indoor fan runs at auto speed and Ts will increase by
0.5ºC for every 30 minutes. The Maximum increasing temperature is 3ºC. If the sleep mode is activated
in heat mode, the indoor fan runs at auto speed and Ts will decrease by 0.5ºC for every 30 minutes.
c)
If sleep mode is turned off, setting temperature goes back and fan is changed to set speed.
B.4.
Auto Fan Speed
Cooling Mode: Fan speed cannot change until it has run for more than 30 seconds.
Heat Mode: Fan speed cannot change until it has run for more than 30 seconds.
B.5.
Stepping Motor
For remote handset
Whenever the indoor fan is running, the louver can swing or stop at the desired position.
Louver angle: 0~100º, opens clockwise with widest angle at 100º.
Swing angle: 35~100º, opens clockwise to 68º. Below are the 4 fixed positions which can be set from
wireless handset.
Position
Angle
1
35º
2
57º
3
83º
4
100º
For wired wall pad
Louver angle: 0~100º, opens clockwise, with widest angle at 100º.
Swing angle: 35~100º, opens clockwise to 68º. User may stop louver at any desired position between
35~100º.
2019-IOM-SWC-V-EC-I-001
