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SIM Inverter Monobloc Air-to-Water Heat Pump
Parameter D (Defrost Parameter)
1. Requirements to enter defrosting
①
Check the suction pressure for 1 min. after the compressor starts, and when suction pressure is ≤D05, defrosting timing shall
be started.
②
If the suction pressure sensor failure, the unit will start timing defrost, and the defrost cycle is D03, defrost time is D04.
2. Requirements to stop defrosting
①
After starting defrosting, when T09≥D02,and T06≥D01, the unit stops defrosting;
②
If the defrosting time reaches the maximum D04, the heat pump stops defrosting. D01——Exit Defrosting Setpoint.
3. Defrosting action
①
The following operations shall be conducted if it complies with enter defrosting requirements:
a. The compressor start to down the frequency at the target frequency of 30Hz.(timings start).
b. When the cumulative time is 55S, the fan stops working and the four-way valve turns its direction.
c. Continue to accumulate 5s, and then start to up the frequency, and the target frequency is the max.value of D11.
②
The following operations shall be conducted if it complies with stop defrosting requirements:
a. The compressor start to down the frequency at the target frequency of 30Hz (timings start).
b. The fan stops working, when the cumulative time is 55S, the four-way valve turns its direction.
c. Continue to accumulate 5s, and then start to up the frequency;
d. Raise the frequency to the start frequency setting and maintain it for 3 minutes before automatically determining the inlet
temperature.
Abnormal end of defrosting
①
If the system turns off at the period of defrosting, it will keep on defrosting until defrosting ends.
②
When detecting the HP switch is disconnected in the course of defrosting, the heat pump will stop defrosting.
③
When detecting the water flow switch is disconnected in the course of defrosting, the heat pump will stop for protection.
④
When detecting the LP switch is disconnected in the course of defrosting, the heat pump shield this fault and keep defrosting.
⑤
When detecting the exhaust temperature is overheated in the course of defrosting, the heat pump will stop for protection.
⑥
When detecting anti-freezing protection in the course of defrosting, the heat pump will stop for protection.
Summary of Contents for CSOLSTICE SIM-036
Page 51: ...51 SIM Inverter Monobloc Air to Water Heat Pump SECTION 8 REPLACEMENT PARTS SIM036...
Page 52: ...52 SIM Inverter Monobloc Air to Water Heat Pump Replacement Parts SIM036...
Page 53: ...53 SIM Inverter Monobloc Air to Water Heat Pump Replacement Parts SIM060...
Page 54: ...54 SIM Inverter Monobloc Air to Water Heat Pump Replacement Parts SIM060...
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