Astralpool HX70 Operations Instructions download pdf (Page 6)

Inst174 HX Series Pool & Spa Heater V02.15

DIGITAL THERMOSTAT OPERATION

DESCRIPTION

The sophisticated digital thermostat provides temperature read out, set point temperature and operating status of

the heater. The electronic display indicates the operational status of the heater and any fault conditions.

TEMPERATURE DISPLAY

The temperature display indicates water temperature in the inlet of the heater. Therefore the pump must be

operating for an accurate pool or spa water temperature to be displayed.

Comfortable pool temperature is between 26˚C and 30˚C. Normal spa temperature is between 36˚C and 38˚C. To

select your desired temperature press the up or down button repeatedly until the desired temperature is reached.

To prevent rapid cycling of the heater, the thermostat has an inbuilt time delay which prevents the heater from

turning on for two minutes after the set point has been reached. If the time delay is activated, the symbol “L” will

be displayed. This is part of normal operation.

The thermostat can be set to temperatures between 10˚C and 40˚C. It also incorporates several safety features

including a 45˚C high limit function to prevent overheating of the pool or spa. On simultaneous shut down of the

circulating pump and heater, the water within the heater may exceed 45˚C for a short period. If the pump and

heater are restarted during this period, the thermostat will go into a standby mode and prevent the heater from

relighting until the temperature within the heater has dropped below the set temperature.

Should the thermostat fail to stop the heater at the set point or at 40˚C, there are three temperature limiting safety

devices designed to lock the heater out and prevent further heating. A lock out condition is indicated by the

symbols F1 or F2. To reset a lock out condition, turn the power off for five seconds.

AstralPool

○

ON/OFF POOL/SPA WARM COOL

1 2 3 4 5 6 7 8 9 10 11 ... 19 20

No comments

Astralpool HX70 Operations Instructions Page 6