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SINCLAIR
(2) Control on fan motor
When start up conditions of the compressor is met, the system starts by following the hot water
sequence. The electronic expansion valve resets and is initialized, and the external fan motor starts.
After 10s, the compressor starts. Then speed of the fan will determine by the ambient temperature and
the rotate speed of compressor.
(3) Control on defrosting
When the compressor is initially powered on and started, it determines the defrosting condition after
running for the preset duration. If the defrosting condition is met, the system defrosts before running in
"HOT WATER" mode (including freeze-proofing operation of compressor). After defrosting is over, the
compressor starts for heat up. When the cumulative operation time exceeds or equals to the preset time
for defrosting, defrosting will be performed if the temperature difference between the outdoor exchanger
pipe and environment temperature sensor meets the defrosting condition.
(4) Control on freeze-proofing function
In the Off state, if water temperature in the water tank detected by the system based on the ambient
temperature is too low, the unit starts the freeze-proofing function immediately.
2 Wired Controller
1
i-know button
5
Mode button
AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL
2
Timer button
6
Increase button
3
Function button
7
On/Off button
7
4
Rapid button
8
Decrease button
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