12-36
CONTROL SYSTEM
Revision Y06-01
Service Manual - LEX
12B.2.3
Comp’ Operation
COMP On
Off
SPT-1ºC SPT+1ºC RT
x
If RT >= SPT+1ºC, COMP and OFAN is activated;
x
If RT <= SPT-1ºC, COMP stop, OFAN will turn off after 5 seconds delay.
Note:
x
COMP turns off have 3 min delay protection;
x
COMP turn on have 5 min continues protection.
x
OFAN will turn off 5 seconds after COMP stop, when turning the unit off or
changing to heat mode.
x
RV
&
AHEAT
closes.
x
Louvers action rules see 3.7
x
Sleep Function, see 3.1
12B.2.4
Defrosting
ICT (ºC)
+7
+1
0
-3
>= 5 min 1 min >= 5 min
COMP ON
OFF
OFAN ON
OFF
x
IFAN always run at the set speed.
x
After COMP is on for 5 minutes, if (ICT <= -3ºC) during 1 minute, COMP and
OFAN stop. If (ICT > 7ºC), COMP and OFAN will resume to the normal
operation.
Note: If ICT is invalid, defrosting protection cannot be activated
