Gree Versati III Mode D'emploi page 24

Operation Instructions for Versati III
2. The water pump for other thermal must be always active under the "Heat" mode.
3. Under the "Heat" mode, the 2-way valve will be controlled based on the setting of the control panel. During
heating operation, the water pump of the heat pump unit will be stopped; however, during standby status, the water
pump will start but the other thermal will stop.
Under the "Hot water" mode, the 3-way valve will switch to the water tank, the water pump of the heat pump will
always stop but the other thermal will start.
Under the "Heat + Hot water" mode, the other thermal only works for space heating, and the electric heater
of the water tank works for water heating. In this case, the 2-way valve is controlled base d on the setting of the
control panel, and the 3-way valve will always stop. During heating operation, the water pump of the heat pump
unit will be stopped; however, during standby status, the water pump will start.
Logic 2
1. The set point of other thermal should be equal to that of "WOT-Heat"and both are or lower than 60 ℃ in "Heat"
mode and "Heat + hot water"mode; The set point should be the smaller one between "T-Water tank" +5°C and
60°C in "Hot water" mode.
2. The water pump for other thermal must be always active under the "Heat" mode.
3. Under the "Heat" mode, the 2-way valve will be controlled based on the setting of the control panel. During
heating operation, the water pump of the heat pump unit will be stopped; however, during standby status, the water
pump will start but the other thermal will stop.
Under the "Hot water" mode, the 3-way valve will switch to the water tank, the water pump of the heat pump will
always stop but the other thermal will start.
Under the "Heat + Hot water" mode ("Heat" takes the priority), the other thermal only works for space heating,
and the electric heater of the water tank works for water heating. In this case, the 2-way valve is controlled base d
on the setting of the control panel, and the 3-way valve will always stop. During heating operation, the water pump
of the heat pump unit will be stopped; however, during standby status, the water pump will start.
Under the "Heat + Hot water" mode ("Hot water" takes the priority), the other thermal works for space heating
and water heating. The other thermal will work for water heating firstly, after reached "T-water tank", other thermal
turns to space heagting.
Logic 3
The heat pump will only send a signal to other thermal, but all the logic of control must be "stand alone".
2.4.7 Optional E-Heater
[Operation Instructions]
1. At the commissioning parameter setting page, by touching "Optional E-Heater", the control panel will access
to the corresponding setting page.
2. At the "Optional E-Heater" setting page, it can be set to "1", "2" or "Off".
[Notes]
●This setting will be memorized upon power failure.
●Either "Other thermal" or "Optional E-Heater" can be activated at the same time.
●There are two working logics for "Optional E-heater".
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