Gree Versati II Series - How to Wire Thermostat

58
Air to Water Heat Pump
Service Manual- Versati II Series
INSTALLATION
Note:
①
Distance between the indoor unit and the remote air temperature senor should be less than 15 meter
due to length of the connection cable of remote air temperature sensor;
②
Height from oor is approximately 1.5 meter;
③
Remote air temperature sensor can not be located where the area may be hidden when door is open;
④
Remote air temperature sensor can not be located where external thermal inuence may be applied;
⑤
Remote air temperature sensor should be installed where space heating is mainly applied;
⑥
After the Remote air temperature sensor is installed, should be set the value form “0”to“1” at the function
code 1 in the control panel, so as to select remote air temperature to the control point.
2.3.11 Thermostat
Installation of Thermostat is very similar to that of Remote air temperature sensor.
GRS-CQ12Pd/NaB-K(I), GRS-CQ14Pd/NaB-K(I), GRS-CQ16Pd/NaB-K(I) :
26
252421 22
23
X
T3
Heat N
Thermostat
Thermostat
L
(230V)
27 28
Cool Heat NCool L
(24V)
Fig �1
How to Wire Thermostat
(1) Uncover the front cover of the indoor unit and open the control box.
(2) Identify the power specication of the thermostat, if it is 230V , nd terminal block XT3 as NO.21~24 or
NO.23~26; Otherwise, if it is 24V, nd terminal block XT3 as NO.25~28 or NO.27~30;
(3) If it is Heating/Cooling thermostat, please connect wire as Fig 1 ;
CAUTION!
①
NEVER USE 230V AC and 24V AC Thermostat at the same time, otherwise, it will cause short-circuit
and power cut-off by circuit breaker;
②
Setting temperature by Thermostat(heating or cooling) should be chosen within the setting temperature
range of the product ;
③
For other constrains, please refer to previous page where constrains about remote air temperature
sensor
④
Do not connect external electric loads, Wire (L) and (N) should be used only for operation Electric type
thermostat.
⑤
Never connect external electric loads such as valves, fan coil units, etc. If connected, PCB of the indoor
unit can be seriously damaged.
⑥
Installation of Thermostat is very similar to that of Remote air temperature sensor.