GENERAL LIFE isipark FH251S User Manual

UNDERFLOOR HEATING THERMOSTAT
FH251S
USER MANUAL
generallife.com.tr
ENGLISH
UNDERFLOOR HEATING THERMOSTAT
generallife.com.tr
FH251S USER MANUAL
GENERAL SPECIFICATIONS
FH251S is a digital room thermostat designed for underfloor heating
system. User provides more comfortable and affordable heating by
setting needed room temperature.
Sensitive Temperature Measurement Hysteresis Adjustment

Temperature Calibration ON/OFF Control

Wired connection

Floor sensor temperature setting

FH251S AND EQUIPMENTS
FH251S Room Thermostat Dowels and
Screws
TECHNICAL DATA
Dimensions ( H / L / W ) 85.7mm / 85.7mm / 33.5mm
Operating Current 230V AC
Relay NO Switching Current 7A (240VAC – Resistive load
10A (120VAC – Resistive load
Temperature Measurement 0.1 C
o
Accuracy
Operating Sensitivity (-2.0 C) – (+2.0 C) o o
Operating Temperature Range (5 C) – (30 C) o o
Operating Temperature (-10 C) – (+50 C) o o
Storage Temperature (-20 C) – (+60 C) o o
ROOM THERMOSTAT
1
2 3
4
5
1 Room Temperature
2 Underfloor Heating Temperature*
3 Set Temperature
Heating Indicator
- If the Heating Indicator is blinking, the heating unit is working.
4 - If the Heating Indicator lights up constantly, the heating unit
is not working.
* External floor sensor is only active when it is connected.
ROOM THERMOSTAT PLACEMENTPlace your Room Thermostat in a
room you use frequently in your living space. For example; like the hall or
living room of your home. Avoid installing the Room Thermostat in
places where there is a lot of air circulation, such as at the doorway or by
the window. Also, do not place it close to heating units (heater core,
fireplace, etc.) and in direct sunlight. We recommend that the room
thermostat is placed at a height of 150 cm from the floor.
1 1
ROOM THERMOSTAT TEMPERATURE CALIBRATION
Temperature sensors used in Room Thermostats are very sensitive.
Based on the temperature on the thermometers in your living space you
need to calibrate your Room Thermostat. For this:
While your device is off, press and hold the button for 3 seconds.

Press the button until you see the calibration menu that says "

press it. The temperature difference you want from the calibration
menu, Adjust by turning the button to the right or left. This value can
be adjusted between "-8°C" and "+8°C".
Press the button until the device turns off to save the settings and

exit.
Note: Recommended temperature calibration setting is "0.0 C".

ROOM THERMOSTAT HYSTERESIS POSITIVE MENU
The hysteresis positive factory setting of your Room Thermostat is
0.5°C. This value can be adjusted between "0.1°C" and "2.0°C". While the
hysteresis positive value is 0.5°C, your Room Thermostat will send a
command to your heating unit when the room temperature rises 0.5°C
above the set temperature. For example, when we set the Room
Thermostat to 22.0°C, your heating unit will stop when the room
temperature rises to 22.5°C. To change the hysteresis positive setting:
While your device is off, press and hold the button for 3 seconds.

"Press the button until the " " menu appears.

)
In the hysteresis positive menu, you can adjust the operating

)
sensitivity by turning the " " button to the right or left.
Press the button until the device turns off to save the settings and

exit.
The settings you have made have been saved. When you turn on your

device, it will work with the operating sensitivity you have set.
ROOM THERMOSTAT HYSTERESIS NEGATIVE MENU
The hysteresis negative factory setting of your Room Thermostat is
-0.5°C. This value can be adjusted between "-0.1°C" and "-2.0°C". While
the hysteresis negative value is -0.5°C, your Room Thermostat will send a
command to your heating unit when the room temperature drops 0.5°C
below the set temperature. For example, when we set the Room
Thermostat to 22.0°C, your heating unit will work when the room
temperature drops to 21.5°C. To change the hysteresis negative setting:
While your device is off, press and hold the button for 3 seconds.

Press the button until the " " menu appears.

In the hysteresis negative menu, you can adjust the operating

sensitivity by turning the " " button to the right or left.
Press the button until the device turns off to save the settings and

exit.
The settings you have made have been saved. When you turn on your

device, it will work with the operating sensitivity you have set.
2
FLOOR SENSOR TEMPERATURE SETTING MENU
min. 20 cm If a floor sensor is installed with Room Thermostat, only GENERAL Life
floor sensor should be installed. Otherwise, the product will be out of
warranty.
*In case of floor sensor connected, the following settings apply.
The factory temperature setting for floor sensor is 28°C. This value can
be adjusted between 23°C and 34°C. The floor sensor operating
sensitivity is 1°C. For example, when you set the floor sensor
temperature to 28°C, your Room Thermostat will stop the heating unit
from working when the floor temperature rises to 29°C. When the floor
temperature drops to 27°C, it starts the heating unit of the Room
Thermostat. To change the floor sensor temperature:
Press and hold the button for 3 seconds while your device is off.

Press the button until the " " menu appears.

"
Adjust the operating temperature by turning the "

right or left in the floor sensor temperature menu that appears.
Press the button until the device turns off to save the settings and

exit.
The settings you have made have been saved. When you turn on your

device, it will operate at the floor sensor temperature you have set.
o
FACTORY RESET
You can reset the Room Thermostat to its factory default settings. This
action resets the calibration setting and hysteresis settings to the
factory setting. To factory reset your Room Thermostat:
While your device is off, press and hold the button for 3 seconds.

Press the button until the " " menu appears.

While in the " " menu, turn the button to the right or left, select the

" " option and press the button.
Your device will turn off and reset to factory settings.

ROOM THERMOSTAT WORKING PRINCIPLE
As soon as you energize your Room Thermostat, it will start working. It is
based on the average temperature of the environment where the Room
Thermostat is located in the last 40 seconds. If the ambient
temperature rises above the hysteresis positive temperature you set,
your Room Thermostat turns off the heating unit, and if it drops below
hysteresis negative temperature value, it turns on the heating unit.
Thus, it is ensured that the ambient temperature remains within a
certain range.
If the floor sensor measures temperature above 28°C, it turns off the
heating unit.*
*External floor sensor is only active when it is connected.
Room
Temperature
Set
Temperature
Heating
Unit On
Heating
Unit Off
3
" button to the
22.5 C o
22.0 C o
21.5 C o
Time