Kaisai KOU-12HFN1-QRC8, Service Manual

Page: 115 / 170

Electrical Control Function
Electrical Control System 111
1.3 Operation Modes and Functions
1.3.1 Fan mode
(1) Outdoor fan and compressor stop.
(2) Temperature setting function is disabled, and no setting temperature is displayed.
(3) For Console& Compact cassette(12K): Indoor fan can be set to high/med/low/ breeze, for other models:
Indoor fan can be set to high/(med)/low/auto;
(4) The louver operates same as in cooling mode.
(5) Auto fan:
For Console:
a
b
c
d
5.0
4.0
2.5
1.0
6.0
T1-24
e
H
(H-L)*0.75+L
(H-L)*0.5+L
(H-L)*0.25+L
L
For Compact cassette(12K)
、
A5(12K)
3.5
3.0
High
Low
1.0
Medium
1.5
Ts=24
For other models:
5.0
4.0
High
Low
2.0
Medium
3.0
Ts=24
1.3.2 Cooling Mode
1.3.2.1 Outdoor PMW open angle control
The unit is working in cooling mode with the EXV open 300P(For 12K, it is 220P) for 3 minutes, then
adjusting PMW open angle according to the temperature of compressor discharge every 2 minutes.