Sensor Failure Protection
If there is something wrong with the sensor, all the output will be stopped and fault code
will be showed.
Three Phase Protection
Rotate switch 1 to number side, and connect mains power, the system will detect the three
phase electricity working condition. If there is anything wrong, the protection pattern will
start, output will be stopped, fault code will be shown.
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Within 12 hours after operation, connect the circuit breaker and energise the heater.
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Open the main valve of water system and the second valve of assistant tank, fill with
water and bleeding air.
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Perform necessary adjustment if need be.
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After the power is switched on, start the test running of heat pump to see if it functions
well.
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Forced operation is not allowed, as it is dangerous to work without protection.
Checklist Before Making Adjustments;
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The system must be installed correctly
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Tubes and lines must be put in the right place
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Accessories are correctly installed
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Ensure proper drainage
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Ensure perfect insulation
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Ensure correct earthing of the heat pump
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Ensure correct supply voltage to meet the requirement of rated voltage
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Air inlet and outlet functions
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Electrical leakage protector works well
Adjusting and Initial Operation
High Pressure Protection
1. If the high pressure switch is disconnected less than three times per hour, display panel
will show fault code with alarm.
2. The compressor, fan and water pump will stop working and restart again after the high
pressure switch is reconnected.
3. If the high pressure switch is disconnected more than three times per hour, the
controller will lock up this fault, and stop all the output no matter whether the high
pressure switch is reconnected or not.
Low Pressure Protection
1. If the low pressure switch is disconnected less than three times per hour, display panel
will show fault code with alarm.
2. The compressor, fan and water pump will stop working and restart again after the low
pressure switch is reconnected.
3. If the low pressure switch is disconnected more than three times per hour, the controller
will lock up this fault, and stop all the output no matter whether the low pressure switch
is reconnected or not.
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