12-46
CONTROL SYSTEM
Revision Y06-01
Service Manual - LEX
12B.3.10
Sound Indication
x
The buzzer will beep twice when starts and a long sound when stops, one
sound for receiving a command.
12B.3.11
Emergency Function
x
The first press on the emergency key on the indoor control board, the unit
enters to cooling mode (SPT: 22ºC; fan speed: Hi; Louver: Auto); the second
time press on the emergency key, the unit enters to heating mode (SPT: 26ºC;
fan speed: MID; Louver: Auto; AHEAT can operation). Press on the emergency
key once again, the unit exits to STBY.
12B.3.12 Strong Function.
x
Strong function will active once receiving a signal from R/C. IFAN run at supper
high speed for 15 minutes, then restore to the set fan speed. When Strong
signal from R/C is off, Strong function is canceled, IFAN operate at set speed.
Note: If COMP stops, strong function is canceled; IFAN will operate at set speed.
12B.3.13
On unit indicators and controls
x
For WMN Standby led indicate Error message
Error indication
Standby led Blinks at 1Hz ( on off)
RT
1
ICT
2
OCT
3
IFAN feedback
4
x
During protection and Deicing operation LED blinks up.
x
For WNG and F/S (use two-color LED)
x
If unit is on, Operation LED light up, Standby LED turn off, During protection
and Deicing operation LED blinks up, not to indicate an Error message.
x
If unit is off, Standby LED light up, Operation LED turn off, indicate error
message blinks up (see 3.13.1.1)
12B.3.14 Clogged air filter
x
Filter LED will turn on after 512 operating h/r.
x
Standby led indicate Error message Filter LED will turn OFF after Timer is
restarted by pressing the RESET button.
