5
5
.
.
CONTROL
CONTROL
MODE
MODE
Chapter 1 System Description
1. System control diagram
2. Function Description
a) Operation Mode: Cooling, Heat, Dry, Fan only.
b) Intake air temperature sense, Indoor coil pipe temperature sensor
and Outdoor coil pipe sensor(only some HEAT PUMP model)
c) Indoor Fan mode Selector: Auto, High, Medium, Low
d) Air flow direction control
e) Control panel display
f) 4-way reversing valve control (only available for Heat Pump)
g) Compressor ON/OFF control
h) Outdoor fan motor control
i) Error inquiry
j) Ceased delay protection for compressor
k) Dimmer
l) Room temperature display (optional)
3. System Signal Input
a) Remote control signal, room temperature signal, coil pipe
temperature
signal, “ON/OFF” signal, Filter Monitor reset signal
4. System Signal Output
4.1 H/C split unit: Air flow direction motor(step motor), indoor fan
Remote control
Remote Display
Indoor control circuit
Room temperature sensor
Indoor pipe temp. sensor
Indoor
PCB
circuit
Indoor fan motor
Indoor air flow direction motor
Outdoor fan motor
4-way reversing valve
（
only for
heat pump
）
Outdoor
temperature
sensor
(only few heat pump
model)
Compressor
Outdoor control circuit
