Operating Principle Of The Unit - Gree Versati II+ Owner's Manual

4 Operating Principle of the Unit

DC Inverter Air to Water Heat Pump is composed of the unit,FCU and water tank. Operation
functions:
(1) Cooling;
(2) Heating;
(3) Water heating;
(4) Cooling +water heating;
(5) Heating+ water heating;
(6) Emergency mode;
(7) Quick water heating;
(8) Holiday mode;
(9) Forced Operation Mode;
(10) Silent mode;
(11) Disinfection mode;
(12) Weather-dependent Operation;
(13) Floor debugging
(14) Air removal of the water system
(15) Solar water heater
(16) Backup heat source
Cooling: in cooling mode, the refrigerant is condensed in the aluminum fin-copper tube and
evaporated in the plate heat exchanger. Via the heat exchange with water in the plate heat
exchanger, the temperature of water decrease 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 aluminum fin-copper tube and
is condensed in the plate heat exchanger. Via the heat exchange with water in the plate heat
exchanger, 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 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 aluminum fin-copper tube
and is condensed in the plate heat exchanger. Via the heat exchange with water in the plate heat
exchanger, 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.
Heating+ water heating: when heating mode exists together with the water heating mode, the
Air-to-water Heat Pump Monobloc Versati
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