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11. Special cycle
1) Anti-legionella cycle
When the anti-legionella function is activated, it show H1 on in the temperature display zone
(always bright), clock zone shows current temperature of water tank.
After connected with power, to prevent bacteria from growing in the water in the tank, if the
water temperature is not up to 70
℃
in a certain period(168h), it will be heated to 70
℃
once.
Note: Anti-legionella cycle can be activated or deactivated on control panel, default is deactivated, refer
to configuring parameters table.
2) Anti-freeze cycle
When the anti-freeze function is activated, it show H2 on in the temperature display zone (always
bright), clock zone shows current temperature of water tank.
If detect ambient air
≤
5
℃
when heat pump is standby, heat pump will heating automatically to
keep tank water between 20
℃
-28
℃
.
Note: Anti-freeze cycle can be activated or deactivated on control panel, default is activated, refer to
configuring parameters table.
3) Photovoltaic cycle
When the photovoltaic function is activated, icon will turn on. When heat pump is running
with photovoltaic power, icon flash and it show H4 on in the temperature display zone (always
bright), clock zone shows current temperature of water tank.
When the system signal of the photovoltaic inverter and water temperature in the tank is less than
60
℃
, heat pump will heat up water until 65
℃
.
Note: Photovoltaic cycle can be activated or deactivated on control panel, default is deactivated,
refer to configuring parameters table.
4) Solar pump circulation cycle
When the solar pump circulation function is activated, icon will turn on. When the solar
pump is running icon will flash.
When Solar collector temperature
≥
30
℃
, and solar collector temperature
≥
tank water
temperature +7
℃，
start the solar pump.
When Solar collector temperature
＜
30
℃，
or solar collector temperature
≥
120
℃，
or solar
collector temperature
≤
tank water temperature +4
℃，
stop the solar pump. Continuously detect solar
collector temperature and tank water temperature.
Note: Solar pump circulation cycle can be activated or deactivated on control panel, default is
deactivated, refer to configuring parameters table. This function is optional.
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