Service manual

CONTROL SYSTEM
STBY Cool Heat Auto Fan Dry
OFF SPT SPT SPT SPT SPT
OFF ON ON ON ON ON
OFF OFF OFF OFF OFF OFF
OFF
(Low)
User
setting
IFAN
spee
d
User
setting
IFAN
spee
d
User
setting
IFAN
spee
d
User
setting
IFAN
spee
d
User
setting
IFAN
spee
d
(Med)
OFF
(High)
OFF
(Turbo)
OFF
OFF
(Auto)
Backlight(red) OFF OFF ON ON ON OFF
Backlight(green) OFF ON OFF ON ON ON
11.4.12.3 Floor/Ceiling Model
STANDBY
INDICATOR
OPERATE
INDICATOR
TIMER INDICATOR
FILTER INDICATOR
COOLING
INDICATOR
HEATING
INDICATOR
FAN MODE
INDICATOR
FAN SPEED
INDICATORS
TEMP. SETTING
INDICATORS
FAN SPEED BUTTON
TEMP. SETTING UP
BUTTON
TEMP. SETTING
DOWN BUTTON
MODE BUTTON
POWER BUTTON
RESET / FILTER
BUTTON
Lights up when the Air Conditioner is connected to power and is ready for operation
1. Lights up during operation.
2. Blinks for 300 msec to announce that a R/C infrared signal has been received and
stored.
3. Blinks continuously during protections (according to the relevant spec section).
Lights up during Timer and Sleep operation.
1. Lights up when Air Filter needs to be cleaned.
2. Blinks during Water Over Flow in PXD models. (Cf. Sect. 7.3)
Lights up when system is switched to Cool Mode by using the Mode Switch on the
unit.
Lights up when system is switched Heat Mode by using the Mode Switch on the unit.
Lights up in Fan Mode activated by local switches.
L -- Lights up when IFAN setting is Low.
M -- Lights up when IFAN setting is Medium.
H -- Lights up when IFAN setting is High.
A -- Lights up when IFAN setting is Auto.
Each one of the seven indicators indicates the following SPT: 18, 20, 22, 24, 26, 28,
30 [
o
c]. The odd number temperatures are indicated by turning on the two adjacent
indicators.
Press this button to change the speed of the IFAN. Each pressing change the speed
in the sequence of: ... L → M → H → Auto → L → ...
Pressing this button increases the SPT by 1
o
c.
Note: The Max SPT is 30
o
c.
Pressing this button decreases the SPT by 1
o
c.
Note: The Min SPT is 18
o
c.
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.
Toggle the unit between OPER & STBY modes.
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.
In long pressing system enters set up mode (if in SB).
Revision 0
11-9