21
38
Exit low ambient cooling
mode
,
run with high fan
for 1 minute
Low
30
27
23
off
T3
Increase fan speed increase
Keep current fan speed
Decrease fan speed
Fan stop
LowCoolT3_ON
LowCoolT3_Down
LowCoolT3_OFF
6.4.3.2 Heating Mode
Under normal operating conditions, the
system chooses a running fan speed
according to ambient temperature:
Outdoor temperature℃
21
Breeze fan speed
19
18
Supper low fan speed
16
15
Low fan speed
13
12
Middle fan speed
10
0
High fan speed
-2
Supper high fan speed
6.4.4 Electronic Expansion Valve (EXV)
Control
1. EXV remains fully closed while the device
is powering up. EXV then remains on
standby with 350P open. It opens to the
target angle after the compressor starts.
2. EXV closes with -160P when the
compressor stops. Then it remains on
standby with 350P open. It opens to the
target angle after the compressor starts.
3. The action priority for the EXVs is A-B-C-
D-E.
4. The compressor and outdoor fan
commence operation only after EXV
initializes.
6.4.4.1 Cooling Mode
The initial open angle of the EXV depends on
the size of the indoor model. The adjustment
range is 100-400p.
When the unit has been running for 3
minutes, the outdoor receives indoor units'
capacity demand and T2B information and
then calculates their average. After
comparing each indoor’s T2B with the
To Next Page
Loading...
Need help?
General
