Service manual

CONTROL SYSTEM
11.4.10 Indoor Unit Dry Contact
Indoor unit Dry contact has two alternative functions that are selected by J8.
Status Function Contact = Open Contact = Short
J8 = Open Presence Detector Connection No Limit Forced to STBY
J8 = Short Power Shedding Function No Limit Limit NLOAD
11.4.11
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11.4.12
11.4.12.1 All Models Except for Floor/Ceiling model
Operating the Unit from the Mode Button
Forced operation allows to start, stop and operate in Cooling or Heating, in pre-set
temperature according to the following table:
Forced operation Mode Pre-set Temperature
Cooling
Heating
On Unit Controls and Indicators
STAND BY
Lights up when the Air Conditioner is connected to power and ready to receive
INDICATOR
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 when Air Filter needs to be cleaned.
COOLING INDICATOR
Lights up when system is switched 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.
RESET / FILTER
SWITCH
For short pressing:
When Filter LED is on - turn off the FILTER INDICATOR after a clean filter has
been reinstalled.
When Filter LED is off – enable/disable the buzzer announcer, if selected.
11.4.12.2 CD Display
11-8
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