Protection
Refrigerant anti-freezing protection(Not available for the moment)
Refrigerant leakage protection(Not available for the moment)
Refrigerant low pressure protection
Gas compressing side high temperature protection
Compressor over-current protection
Refrigerant high pressure protection
System refrigerant inlet pipe sensor protection(Not available for the moment)
System refrigerant outlet pipe sensor protection(Not available for the moment)
Gas compressing side temperature sensor protection
Power source phase protection
Error code
1
2
3
4
5
6
7
8
9
EE
Description for protection function :
1. Refrigerant anti-freezing protection(Not available for the moment)
2. Refrigerant leakage protection(Not available for the moment)
3. Refrigerant low pressure protection:
After compressor start 3 minutes later,system continuously detect 10 seconds for the low pressure
switch, if the low pressure switch is opened, system enter to low pressure protection ( error code 3) ,
when detected low pressure switch is closed, system exit the low pressure protection .
4. Gas compressing side high temperature protection :
After compressor start 5 minutes later, system continuously detect 5 seconds for gas conpressing
side, if gas compressing side temperature T3
≥
120
°
C, system enter to gas compressing side air
exhausting high temperature protection( error code 4) , when detected gas compressing side air
exhausting tempertaure T3
≤
90
°
C , system exit the gas compressor side high temperature
protection.
Remark 1 : P1, P2, P4 protection only valid when relevant system compressor is on, If relevant
system compressor is off, even the temperature point is reached, protection is not valid. The on
or off of the compressor is detected by compressor current ( 0 or not)
5. Compressor over-current protection:
System continuously detect 3 seconds for compressor phase 1 (or 2) , If phase 1 (or 2) current
≥
1 ,
system enter to compressor over-current protection( error code 5). When detected compressor
phase 1 (or 2) current
≤
1 , system exit the protection of compressor over-current.
6.Gas compressing side high temperature protection:
When system continuously detects 10 seconds for the relevant system high pressure switch, and
if high pressure switch is opened , system enter to high pressure protection( error code: 6) when
detected the high pressure switch closed, system exit the protection of high pressure.
7. System refrigerant inlet pipe sensor protection(Not available for the moment)
8. System refrigerant outlet pipe sensor protection(Not available for the moment)
9. Gas compressing side temperature sensor protection
When system continuously detect 5 seconds for the relevant system compressor air exhaust
temperature sensor to be short cuted or opened, system enter to gas compressing side
temperature sensor protection (error code 9 ),otherwise system exit the protection .(sensor open
or not is detected only after relevant compressor run 1 minutes later)
10. Power source phase protection ( Not valide durning heat pump running)
Within 10 seconds after heat pump is connected to power source, system detect continuously 2
seconds for the system phase , if wrong phase or lack phase, system enter to power source
phase protection (error code EE). When this protection is activated,system can not return to
normal unless re-connecting to power source.
Remark 2 : system high pressure protection E6, low pressure protection E3, over-current
protection E5, gas compressor side air exhausting protection E4 , all are serious system
malfunction , if any system appear continuously 3 times for such serious malfunction within 30
minutes, system can not return to normal unless re-connecting to power source . During defrosting
period, system high/low pressure protection is not valid.
10
SWIMMING POOL HEAT PUMP
