Citron SC-AS1-4 User manual

RS-485
Thermostat
SC-AS1-4
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SC-AS1-4 series of smart thermostat is suitable for
the temperature control of the two-pipe water
system, the ventilation system, the refrigerant
system, and also the on/o of the solenoid valve (or
the three-wire ball valve). It achieves the purpose of
adjusting temperatures through the comparison
between the ambient temperature and the set
temperature. It’s applied to control temperature in
industry, commercial buildings and residence.

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Basic Functions
Indoor temperature setting and measurement
Temperature correction
Blue backlight
4-relay output
User Guidance
Power on/o
Click the button "。。。。" of the upper key to turn on; press again to turn
o and simultaneously the output is shut down.
Set temperature
In the power-on state, press the "+" key to increase the set temperature,
press the "-" key to decrease the set temperature, and each press sets
the temperature change to 0.5°C.
Working mode selection
In the shutdown state, long press the button "。。。。" to enter the floor
heating and air-conditioning mode selection, short press the button
"。。。。" to shift between the floor heating and air-conditioning modes.
To select the heating symbol, the panel will work in the floor heating
mode; To select the snowflake symbol, it means that the panel will work
in the air-conditioning mode. After the mode is confirmed, the panel will
automatically shut down. It becomes the selected mode when it is turned
on again.
Technical Parameters
Temperature sensing element
Temperature
measurement accuracy
Temperature setting
Working environment
Humidity
5~35°C
0~45°C
5~95%Rh (non-condensing)
Self-consumption power <2W
Power supply voltage DC 12V~24V
Terminal suitable for wire with
size 2×1.5mm or 1×2.5mm
Load current 2A (resistive load), 1A (inductive load)
Shell PC+ABS flame retardant
Dimensions 86×86mm
Installation hole distance 60mm(standard)
Proof level IP 30
Button touch button
±1°C
NTC

Setup Guidance
Device number setting
In the power-on state, long press the button "。。。。
" to enter the setting mode, the ID icon flashes to indi-
cate that it is in the device number setting state, press
the "+" and "-" keys to modify the device number, and
it will automatically save and exit after 3 seconds Set
status.
Temperature correction setting
In the setting mode, short press the button "。。。。"
of the upper key, the temperature icon flashes to indi-
cate that it is in the temperature correction setting
state, press the "+" and "-" keys to modify the tem-
perature value (-9～+9°C). After 3 seconds, it will auto-
matically save and exit the setting state.
Screen brightness setting
In the setting mode, short press the button "。。。。"
of the upper key, the brightness icon flashes to indi-
cate that it is in the brightness setting state, press the
"+" and "-" keys to modify the brightness value (range
1-9), and it will be automatically saved after 3 seconds
and exit the setting state.
Active feedback setting
In the setting mode, short press the button "。。。。"
of the upper key, the water drop icon flashes, indicat-
ing that it is in the active feedback setting state, press
the "+" and "-" keys to turn on and o ("1" is on, "0" Is o),
after 3 seconds, it will automatically save and exit the
setting state.
Air Conditioner Operation Guide
Wind speed setting
In the power-on state, short press the button "。。。。
" to switch between high, medium and low wind speed.
Mode setting
In the power-on state, long press the button "。。。。
" to enter the mode setting state, short press the
button "。。。。" to switch between cooling, heating
and ventilation modes.
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Available to control refrigerant air conditioner and underfloor heating
Available to control water system air conditioner

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Display screen
Base
Frame
Base bracket
Button
bracket
Button
h
Lens
i
g
Circuit
support
f
e
c
Light guide bar
d
b
a
Fixture & installation
First fix the base bracket (a) to the base (c), and then snap the base (c) into
the frame (b);
Fix the base (c) to the junction box on the wall with screws;
Fix the display screen (h) on the base (c) with the bracket (f), and then
buckle the lens (i) on the base (c);
01
02
03

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The equipment is maintenance-free.
Use a dry cloth for cleaning.
Do not use solvents or other aggressive substances.
At the end of its useful life, the product is classified
as e-waste and cannot be treated with municipal
unsorted solid waste.
Warning
Maintenance
Dispose
Improper installation may cause short circuit or
fire. Make sure that the power supply is turned o
before making connections.
Improper handling of this product may cause
damage to the environment.
Installation and configuration can only be carried
out by qualified professional and technical per-
sonnel.
Illegal opening of the device case will invalidate
the warranty.