V1 JUIN 2010 ALTECH Generation ALL IN ONE Type Heat Pump Water Heater Technical Manual
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3.1.5 It is recommended to set a lower temperature to decrease the heat release, prevent scale and save
energy if the outlet water is sufficient.
3.1.6 Clean the air filter every month in case of any affect on the heating performance.
3.1.7 Before shutting the system down for a long time, please: Shut down the power supply; Release all the
water in water tank and the pipeline and close all the valves; Check the inner components regularly.
4.2 Non-error Malfunction
3.2.1 3-min Protection With the power supplied, an immediate restart after the shutting down will have to
wait 3 min as to protect the compressor.
3.2.2 If self-protection happens and the system stops, check :
When the power indicator lights up, if the system is forced to run while startup requirement has not been met;
If the air outlet or inlet is jammed or strong wind blows to air outlet.
3.2.3 Defrosting
When it is humid and cold, the condenser may defrost and the water-heating capacity decrease. And the
system will stop heating water and start defrosting and then restart water-heating
3.2.4 During defrosting, the compressor keeps running but reverse to defrosting cycle while fan motor
stops;
3.2.5 The defrosting time varies from 3min to 10min according to the ambient temperature and the frost.
4.3 Temperature Display
3.3.1 When the system stops, a decrease of the temperature is normal as heat released. When it
decreases to some point, the system will restart automatically;
3.3.2 During water-heating, the displayed water temperature might still decrease or not increase for a
period of time because of the heat exchange of the water. When the whole tank of water has reached
the set temperature, the system will stop automatically.
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