1. Introduction to electrical control function
Including brief introduction to air conditioners of series models and electric
control function.
Brief introduction to electric control function
(1) Automatic running (applicable to fan-coil model)
When the running mode is turned to automation after starting the system, the
system will first determine the running mode according to the current room
temperature and then will run according to the determined mode. Tr in the following
selection conditions means room temperature, Ts means setting temperature, Tp
means temperature of indoor coil pipe
a. Tr>23
O
C running refrigerating mode Ts=26
O
C
b. Tr<23
O
C running heating mode Ts=23
O
C
After turning to the automation mode, the running mode can be switched
between refrigerating mode, fan mode and heating mode according to the change
of the indoor ambient temperature. But the automatic conversion between
refrigerating mode and heating mode must be conducted after 15 minutes.
The compressor, outdoor fan and indoor fan will run as per the following
working pattern so as to realize the refrigerating running of
dehumidification:
a.Tr> Ts+2
O
C, compressor, outdoor fan run continuously, indoor fan runs as
per setting wind speed (State 1);
b.Ts+2
O
C>Tr>Ts, compressor, outdoor fan run intermittently with 10 minutes
ON, 6 minutes OFF. (Compressor and outdoor fan are synchronous)
indoor fan runs in fixed lower wind speed, and will cease at the stand-
by time of 3 minutes (State 2)
c.Tr <Ts, compressor, outdoor fan ceases, indoor fan runs in lower wind
speed after 3 minutes ceases. (State 3)
(3) Dehumidification running
(2) Indoor temperature control
Compressor OFF
Compressor ON
Compressor OFF
Setting temperature
Setting temperature
Refrigerating
Heating
-1
+1
-1
+1
23
Air Conditioner
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