Gree HOME GMV Инструкция по эксплуатации онлайн [81/367] 48267

Gree HOME GMV Инструкция по эксплуатации онлайн [81/367] 48267
Dc Inverter VRF plus Water Heater Solution Service Manual CONTROL
77
When the wired controller or remote controller sends a stopping swing signal, the automatic swing function will
be stopped, and the swing louver stops at current position.
Others
When the indoor unit receives the shutdown signal, detecting the fault signal and defrosting signal unless the
auxiliary electric heating protection, no matter the swing louver are under any state, they will all stop at initial
position after the cessation of indoor fans.
When the indoor units detected the auxiliary electric heating protection, no matter the indoor units are under
any state, the automatic swing will work, and the indoor fans will run at high speed at the same time.
5) Controlling of drainage pump motor
Cassette indoor units have drainage pump device to discharge the condensation water which is produced during
cooling or drying.
When the indoor unit is operating under cooling or dry mode, the water pump and compressor will start at the
same time.
When powering off or cooling stop, drying stop or transfering to other modes, the water pump will be powered
off after five miuntes.
When water level is flooded for 8 second at any mode (include power-off), the water pump must be started at
once. The pump will not stop running untill the flooding signal disappears and it will stop running ten minutes after
the flooding signal disappears.
水泵关
压缩机关
非制冷
制冷
非制冷
制冷停机
压缩机开
压缩机关
5m 5m
水泵开
水泵关 水泵关
水泵开
t
8
s
10m
t
水泵关
水泵开
水泵关
水满信号无效
水满信号有效
水满信号消除
6) Anti- frosting operating undercooling and drying operation
When evaporator temperature is too low under cooling and drying operation, in order to avoid indoor unit frosting
and affect the cooling effect, you should carry out anti frosting operating at approproate time.
Under cooling and drying mode, after the compressor starts for T
Compressor
(minutes), when continuously
measuring that the T
Tube-inlet temperature
T
Frosting temperature
of evaporator for T
antifrosting
,, the antifreezing protection will
operate and the indoor fan and swing fan will keep the former state; when the T
Tube-inlet temperature
T
Frosting temperature
,
the LED will not light and the controller will operate as setting mode.
The parameter of T
Compressor
, T
Defending frost
, T
Frosting temperature
and T
Reset temperature
will be different according to the model,
as shown:
Model T
Compressor
(m)
T
Defending frost
(m)
T
Frosting temperature
()
T
Reset temperature
()
Series of
cassete and
duct type
15 10 -4 15
Series of wall
mounted
type
6 3 0 10
7) Controling of indoor electronic expansion valve
Reset control of indoor electronic expansion valve
When the indoor unit is energized, it will automatically carry out the electronic expansion valve reposition action,
to make the electronic expansion valve return the initial position, and ensure the accuracy of expansion valve’s
action.
Controling of superheating degree in cooling mode
In the operation process of cooling and drying , to keep suitable superheating degree, the unit will control the jaw
opening of indoor electronic expansion valve according to the difference between entry temperature and setting
Cooling
Non-cooling
Non-cooling
Cooling stop
Compressor start
Compressor stop
Compressor stop
Pump start
Pump start
Pump start
Pump stop Pump stop
Pump
stop
Pump stop Pump stop
Water full signal is disappears
Water full
signal is
invalid
Water full
signal is valid

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