Manual Auto Operation ( Indoor Unit Body Operation ); Compressor Preheating; Coil Dry Operation Control - Fujitsu AW Z24LBC Series Service Instruction

15. MANUAL AUTO OPERATION (Indoor unit body operation)
If MANUAL AUTO Button is set (Push a MANUAL AUTO button for 3~10 seconds), the operation
is controlled as shown in Table 10.
If the remote control is lost or battery power dissipated, this function will work without the remote
control.
(Table 10)
OPERATION MODE
FAN CONT. MODE
TIMER MODE
SETTING TEMP.
SETTING LOUVER
SWING
16. FORCED COOLING OPERATION
Forced cooling operation is started when pressing MANUAL AUTO button for 10 seconds or more.
During the forced cooling operation, it operates regardless of room temperature sensor.
Operation LED and timer LED blink during the forced cooling operation. They blink for 1 second ON
and 1 second OFF on both operation LED and timer LED (same as test operation).
Forced cooling operation is released after 60 minutes of starting operation.
The FORCED COOLING OPERATION will start as shown in Table10.

17. COMPRESSOR PREHEATING

When the outdoor heat exchanger temperature is lower than temperature and the heating operation has
been stopped for 30 minutes, power is applied to the compressor and the compressor is heated.
(By heating the compressor, warm air is quickly discharged when operation is started.)
When operation was started, and when the outdoor temperature rises to temperature
is ended.
(Table 11 : Preheating Operation / Release Temperature)
AW * Z24LBC
18. COIL DRY AND CLEAN OPERATION CONTROL

COIL DRY OPERATION CONTROL

The coil-dry operation functions by pressing COIL DRY button on the remote controller.
The coil-dry operation is consisted of 3 cycles of [Fan operation 3 minutes / Heating operation
2 minutes], and Fan operates for 3 minutes at last before ending the air conditioner operation.
(It takes 18 minutes to complete the coil-dry operation.)
(Table 12 : COIL-DRY Operating Functions)
AW * Z24LBC
Filter Clean is operated after a coil dry operation end.
FIlter Clean function performs disinfection and deodorization of a filter with UV lamp during filter
movement.
Unit is stopped after Filter Clean operation.
Manual auto operation
Auto changeover
Auto
Continuous (No timer setting available)
24°C
Standard
OFF
Temperature Temperature
5°C
Compressor
Indoor Fan Speed
Frequency
1100rpm
Forced cooling operation
Cooling
Hi
-
Room Temp is not controlled
Horizontal
OFF
7°C
Louver
Position
29Hz
05-13
or greater, preheating
Main Unit
Indication
COIL-DRY indication : ON
Other indication : OFF