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SK2019 FMCD-V-ECM-001
Without Thermoelectric Valve Configuration
COOL MODE
a)
Heater, AUX1, MTV1 and MTV2 are always off.
b)
If Tr ≥ Ts + 1ºC (or
+ 4ºC if economy contact is activated), then cool operation is activated and AUX2 is turned on.
Indoor fan runs at set speed.
c)
If Tr < Ts, then cool operation is terminated and AUX2 is off. Indoor fan runs at Modbus 310000 setting.
d)
The range of Ts is 16 - 30ºC.
e)
Indoor fan speed can be adjusted to low, medium, high and auto.
f)
When the unit is turned off, indoor fan shut down after 5 seconds.
LOW TEMPERATURE PROTECTION OF INDOOR COIL
a)
If Ti1 ≤
2ºC for 2 minutes, then AUX2 is turned off. If low speed is selected via user interface, then indoor fan runs at
medium speed. If medium or high speed is selected via user interface, then indoor fan runs at set speed.
b)
If Ti1 ≥ 5ºC for 2 minutes, t
hen AUX2 is turned on. Indoor fan runs at set speed.
FAN MODE
a)
Indoor fan runs at the set speed while heater, AUX1, AUX2, MTV1 and MTV2 are turned off.
b)
Indoor fan speed can be adjusted to low, medium and high.
HEAT MODE
Without electrical heater
a)
MTV1, MTV2, AUX2 and heater are always off.
b)
If Tr ≤ Ts
- 1ºC (or - 4ºC if economy contact is activated), then heat operation is activated and AUX1 is turned on.
Indoor fan runs at the set speed.
c)
If Tr > Ts, then heat operation is terminated and AUX1 is turned off. Indoor fan runs at Modbus 310000 setting.
d)
The range of Ts is 16 - 30ºC.
e)
Indoor fan speed can be adjusted to low, medium, high and auto.
With electrical heater as booster
a)
MTV1, MTV2 and AUX2 are always off.
b)
If Tr ≤ Ts
- 1ºC (or - 4ºC if economy contact is activated), then heat operation is activated and AUX1 is turned on.
Indoor fan runs at the set speed.
c)
If Tr > Ts, then heat operation is terminated and AUX1 is turned off. Indoor fan runs at Modbus 310000 setting.
d)
If Ti1 < 40ºC, then the electrical heate
r is turned on. If 40ºC ≤ Ti1 < 45ºC, then the electrical heater maintains its
original state. If Ti1 ≥ 45ºC, then the electrical heater is turned off.
e)
The range of Ts is 16 - 30ºC.
f)
Indoor fan speed can be adjusted to low, medium, high and auto.