USAGE OF ROOM THERMOSTAT
HT250S SET is a wireless room thermostat. The HT250S SET room thermostats are used in heating systems to
keep the room temperature constant at the set temperature.
Large LCD Backlight Display
Heating Calibration
For heating systems
ON/OFF control
Battery DC 3 V (2 × 1,5V AAA Alkaline battery)
USAGE AREAS
Houses
Apartments
Residences
Schools
Offices
The device can be used on combi boilers and on all on/off heating systems operating at 220V AC 7A current and
voltage values.
MECHANICAL DESIGN
The device consists of 3 part:
Plastic body
Battery cover
Wall hanger
Holder
The battery cover is attached to the plastic case. After the wall bracket is mounted in the wanted area, the plastic
body is attached to the wall bracket.
HT250S SET
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Show the set temperature
Shows the room temperature
Battery Section
Progressive Battery Indicator (Indicates that the battery is low or depleted.)
Turning the button clockwise acts as the ”+“button and increases the temperature.
On / off and temperature calibration button
If the button is turned counterclockwise, it acts as ”- “ button and decreases the temperature.
If the heating symbol is on, it indicates that the combi boiler is on.
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