12-18
CONTROL SYSTEM
SM DLSDCI 3-A.1 GB
12.4.9 Indoor Units Operation when Indoor Unit Mode is Different than
Outdoor Unit Mode
• Open louvers according to user selection.
• Indoor fan is forced to OFF.
12.4.10 Indoor Unit Dry Contact
12.4.10.1 System with SW up to 2013:
Indoor unit Dry contact has two alternative functions that are selected by J9 (Dip-Switch).
Status Function Contact = Open Contact = Short
J9 = Open Presence Detector Connection No action – normal operation Forced to STBY
J9 = Short Power shedding function No limit Limit NLOAD
“Presence Detector” feature in the indoor unit is done for cases that external SB (Stand-By) is required via a presence
detector switch, window closed detector, etc.
12.4.10.2 System with SW from 2013:
Status Function Contact = Open Contact = Short
J9 = Open Clock See below See below
J9 = Short Presence Detector Connection No action - normal operation Forced to STBY
The Clock is activated according to the following table:
A/C STATE
(before clock is
changed)
CLOCK STATE
(before clock is changed)
CLOCK ACTION (clock
is changed)
A/C NEW STATE
(after clock is
changed)
ON 1 0 OFF
ON 0 1 ON
OFF 0 1 ON
OFF 1 0 OFF
12.4.11 On Unit Controls and Indicators
STAND BY
INDICATOR
Lights up when the Air Conditioner is connected to power and ready to receive
the R/C commands
OPERATION
INDICATOR
Lights up during operation.
Blinks for 300 msec to announce that a R/C infrared signal has been received and
stored.
Blinks continuously during protections (according to the relevant spec section).
TIMER INDICATOR Lights up during Timer and Sleep operation.
FILTER INDICATOR Lights up after x period of operation to indicate that lter needs to be cleaned.
COOLING
INDICATOR
Lights up when system is switchWed to Cool Mode by using the Mode Switch on
the unit.
HEATING
INDICATOR
Lights up when system is switched Heat Mode by using the Mode Switch on the
unit.
Mode SWITCH
(COOL/HEAT/OFF)
Every short pressing , the next operation mode is selected, in this order :
SB → Cool Mode → Heat Mode → SB → …
In long pressing system enters diagnostic mode.