11
4.
Operating Principle of the Unit
DC Inverter Air to Water Heat Pump is composed of outdoor unit, indoor unit and internal-fan coil water tank.
Operation functions:
Cooling;
(1) Heating;
(2) Water heating;
(3) Cwater heating;
(4) water heating;
(5) Emergency mode;
(6) Quick water heating;
(7) Holiday mode;
(8) Forced Operation Mode;
(9) Silent mode;
(10) Disinfection mode;
(11) Weather-dependent Operation;
(12) Floor debugging;
(13) Air removal of the water system;
(14) Other thermal
Cooling
:
in cooling mode, the refrigerant is condensed in the outdoor unit and evaporated in the indoor unit. Via the heat exchange
with water in the indoor unit, the temperature of water decreases and it releases heat while the refrigerant absorbs heat and
evaporates. With the help of wired controller, the outflow temperature can meet the user’s requirement. Through the control of valve,
the low-temperature water in the system is connected with indoor fan coil and underground pipe, and exchanges heat with the indoor
air so that the indoor temperature decreases to the required range.
Heating
:
in heating mode, the refrigerant evaporates in the outdoor unit and is condensed in the indoor unit. Via the heat
exchange with water in the indoor unit, the water absorbs heat and its temperature increases while the refrigerant releases heat and is
condensed. With the help of wired controller, the outflow temperature can meet the user’s requirement. Through the control of valve,
the high-temperature water in the system is connected with indoor fan coil and underground pipe, and exchanges heat with the indoor
air so that the indoor temperature increases to the required range.
Water
heating
:
in water heating mode: the refrigerant evaporates in the outdoor unit and is condensed in the indoor unit. Via
the heat exchange with water in the indoor unit, the water absorbs heat and its temperature increase while the refrigerant releases
heat and is condensed. With the help of wired controller, the outflow temperature can meet the user’s requirement. Through the
control of valve, the high-temperature water in the system is connected with the coil pipe of bearing water tank, and exchanges heat
with the water in the water tank so that the temperature of water tank increases to the required range.
Cooling
+ water
heating
:
when cooling mode exists together with the water heating mode, the user can set the priority of these two
modes based on the needs. The default priority is heat pump. That is under the default setting, if cooling mode exists together with
the water heating mode, the heat pump gives priority to cooling. In that case, water heating can only realized with e-heater of the
water tank. Inversely, the heat pump gives priority to water heating and switches to cooling after finishing water heating.
water
heating
:
when heating mode exists together with the water heating mode, the user can set the priority of these two
modes based on the needs. The default priority is heat pump. That is under the default setting, if heating mode exists together with
the water heating mode, the heat pump gives priority to heating. In that case, water heating can only realized with e-heater of the
water tank. Inversely, the heat pump gives priority to water heating and switches to heating after finishing water heating.
Emergency mode
:
this mode is only available for heating and water heating. When the outdoor unit stops due to malfunction, enter
the corresponding emergency mode; as to heating mode, after entering the emergency mode, heating can only be realized through e-
heater of the indoor unit. When the setting outflow temperature or indoor temperature is reached, the e-heater of indoor unit will stop
running; as to water heating mode, the e-heater of indoor unit stops while the e-heater of water tank runs. When the setting temperature
or water tank is reached, the e-heater will stop running.
Quick
water
heating
:
in quick water heating mode, the unit runs according to the water heating control of heat pump and the e-
heater of water tank runs at the same time.
