Toyotomi CCT 140IUINV, Service Manual

Page: 63 / 97

Electrical Control Function
104
Electrical Control System
For the others models:
27
High
Low
25
20
15
low temperature cooling
Outdoor fan in low temperature cooling mode acts as follow:
T3
38
Off
Low
30
27
23
Exit low temperature
cooling mode
,
High
fan running for 1
minute
1.3.2.3 Indoor fan running rules
In cooling mode, indoor fan runs all the time and the speed can be selected as high, medium, low and auto.
The auto fan:
5.0
4.0
High
Low
2.0
Medium
3.0
1.3.2.4 Evaporator low temperature T2 protection.
When T2<2 ℃ and lasts for 3 minutes, the indoor has no capacity demand and resume till T2 ≥ 7 ℃ .
1.3.2.5 Condenser high temperature T3 protection
When T3 ≥ 65
℃
for 3 seconds, the compressor will shut off. When T3
＜
52,the compressor will restart.
1.3.3 Heating Mode