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Sequential Controller (Model: A(4)RT150/200/250/300/360/420A/AR)
Sequential Controller Functions
1) Sequential Controller LCD Display
E
D
C
B
A
2) Operating Guide
a) ON/OFF Key
Press once to start the air conditioning unit.
Press again to stop the unit.
The operation lamp next to the key lights up and goes off respectively when the unit is running or not
running.
Caution : In the case when the ON/OFF key is pressed immediately after the operation is
stopped, the unit will not restart until 3 minutes later to protect the compressor.
b) Selecting Operation Mode
Press the MODE key to select the type of operating mode. Consecutive press of the key switches the
operation over "COOL", "HEAT", "AUTO" and "FAN"
c) Save Mode
Press the SAVE key to select the energy saving function. This option is only available for "COOL",
"HEAT" and "AUTO" modes.
d) Auxiliary Electric Heater
If the "HEAT" mode provides insufficient heating to a room even at the highest temperature setting
(30ºC), press the HEATER key to activate the auxiliary electric heater. For models with two heaters,
consecutive press of the key allows the selection of one or both heaters active.
e) Temperature Setting
To set the desired room temperature, press
temperature in the range of 16ºC to 30ºC. Press both
between ºC and ºF setting.
f) Time Setting
Real time Clock
Press the CLOCK key once to activate set clock mode.
Press again to disable set clock mode.
Under set clock mode, the time of the present day can be set by pressing the respective MINUTE,
HOUR and DAY key.
F
G
A : Time display
B : Error indication
C : Compressor running display (up to 4 compressors)
H
D : Key lock display
I
E : Heater display (up to 2 heaters)
F : Energy saving mode display
G : Compressor defrost cycle display (up to 4 compressors)
H : Operation mode display
I : Temperature set display
or
22
to increase or decrease the set
and
simultaneously to toggle
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