Fisher FSPI-180AE1 Service Manual page 38

Electrical Control Function
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) Indoor fan can be set to high/(med)/low/auto;
(4) The louver operates same as in cooling mode.
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 3 minutes, then adjusting PMW open angle
according to the temperature of compressor discharge every 2 minutes.
1.3.2.2 Outdoor fan running rules
38
5.0
4.0
3.0
2.0
T4
A
28℃
26℃
B
25℃
23℃
C
22℃
20℃
D
19℃
17℃
E
High
Medium
Low
Ts=24
DC_FAN_HI_SPD_ADD
DC_FAN_MID_SPD_ADD
DC_FAN_MIN_SPD_ADD
DC_FAN_SLOW_SPD_ADD
DC_FAN_SSLOW_SPD_ADD
Electrical Control System