The Water Temperatura Different Is Too Large Protection; Low Temperature Limits The Compressor Running; Antifreeze Protection In Winter; Sensor Fault Protection - Astralpool PROHEAT II Serie Manual De Instrucciones

PROHEAT II SERIES · HEAT PUMP AIR/WATER SYSTEM
6.5.8. THE WATER TEMPERATURA DIFFERENT IS TOO LARGE
PROTECTION
The difference between inlet and outlet water temperatures will be controlled by the regulator
for 5 seconds. If the difference is higher than F72, error code "A44" will appear 5 seconds later
and the compressor will stop. If this protection triggers 3 alarms in one hour, the system will
lock down in alarm status. The machine will have to be restarted manually to unlock the system.

6.5.9. LOW TEMPERATURE LIMITS THE COMPRESSOR RUNNING

If externa air temperature is < F26，the compressors cannot be started (except for defrost
protection in winter). Only the electrical heating can be started.
6.5.10.

ANTIFREEZE PROTECTION IN WINTER

This feature is not active when the external air temperature is over 3ºC. If the water in
temperature is below 4ºC and the air temperature is below 3ºC and the machine is OFF or in
stand-by mode the machine will activate the water pump to avoid having the water in the pipes
iced (piping broken).

6.5.11. SENSOR FAULT PROTECTION

Pipe 1、Exhaust 1、Pipe 2、Exhaust 2 Sensors work independently in each circuit and
display different error codes to distinguish between different systems；
Water inlet temperature sensor fault, stops the machine.
If other temperature sensor faults, close the protection.
Auto test: if the sensor failure is corrected, the unit restarts.
Note：If we get a failure when the machine is working, the water pump will continue working
during 5 minites. Then it will be stop.
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