Vivax ACP-12CC35AECI, Service Manual

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Electrical Control Function
Electrical Control System 123
---T3<52
℃
, the compressor will not limit the frequency and resume to the former frequency.
---T3>60
℃
for 5 seconds, the compressor will stop until T3<52
℃
.
For other models: When T3>65
℃
for 3 seconds, the compressor will shut off. When T3
＜
52,the compressor
will restart.
1.3.3 Heating Mode
1.3.2.1 Electronic Expansion Valve (EXV) Control
1.EXV will be fully closed when turning on the power. Then EXV will be standby with 300P open and will
open to target angle after compressor starts.
2.EXV will close with -160P when compressor stops. Then EXV will be standby with 300P open and will open
to target angle after compressor starts.
The unit is working in heating mode with the EXV open 300P(For 12K,it is 480P) for 3 minutes, then
adjusting EXV open angle according to the temperature of compressor discharge every 2 minutes.
1.3.3.2 Outdoor fan running rules:
T4
E DC_FAN_SSLOW_SPD_ADD
D DC_FAN_SLOW_SPD_ADD
C DC_FAN_MIN_SPD_ADD
B DC_FAN_MID_SPD_ADD
A DC_FAN_HI_SPD_ADD
21℃
19℃
18℃
16℃
15℃
13℃
12℃
10℃
1.3.3.3 Indoor fan running rules:
For Console(12K):
In heating mode, indoor fan can be selected as high, medium, low, auto and silent. The anti-cold- wind
function has the priority.
When the compressor is running, the indoor fan is controlled as below: