USER'S MANUAL
Thermostat for underfloor heating Lark D02
Thermostat for underfloor heating Lark D02 (hereinafter referred to as the Device) is an automatic device for maintaining the room temperature set by the user. Designed to control the "warm floor" * system, as well as household electric heating devices.
Relay load switching.
The device regulates room and floor air heating * based on the readings of the built-in and remote temperature sensors and automatically maintains a comfortable temperature. Without an external sensor, the device works like a normal room thermostat, maintaining the set room temperature.
The device works with heating cables, heating foil, and other household electrical heating equipment.
The device is intended for indoor use.
The device has the following service functions:
The device has the following service functions:
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Function frost protection when the air temperature drops below 5°C.
(When the thermostat is turned off, when the room temperature drops below+5°C, the heating relay automatically turns on and turns off when the temperature is reached temperature+10C °).
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Protection against floor overheating - shutdown when the floor temperature exceeds 45°C.
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Saving settings after a power outage.
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Restart operating mode after a temporary power outage with saved control parameters.
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* If equipped with a remote temperature sensor.
1. SPECIFICATIONS
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Power supply: AC85-260V, 50/60Hz
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Power consumption: <1W
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Sensor Floor temperature * : NTC Thermistor
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Accuracy of the measured temperature: ±1 °C
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Temperature display range: -20 ° C … +99 °C
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Temperature setting range: +5 °C … +60 °C
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Guaranteed switching current: 10A
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Maximum relay current: 16A
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Enclosure material: ABS plastic
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Enclosure dimensions: 86 * 86 * 13mm
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Mounting hole spacing: 60mm
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Protection class: IP30
2. GETTING STARTED
ATTENTION! TO PREVENT ELECTRIC INJURY, DO ALL SWITCHING ONLY WITH THE POWER SUPPLY DISCONNECTED TO THE CONNECTED CIRCUIT!
If the Device is used in a place of temporary (seasonal) residence, it should be connected through a separate automatic fuse (the so-called "AUTOMATIC" avoiding unwanted spontaneous activation of the frost protection function, and as a result - unnecessary consumption of electrical energy.
The device is connected according to the figure on the body.
Pin assignment:
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Mains phase conductor
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Mains neutral
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Heater neutral wire
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Heater phase wire
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Floor temperature sensor contact *
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Floor temperature sensor contact *
* The device comes with with a jumper on pins 5 and 6. When the jumper is installed, only the internal sensor is used to monitor the temperature. To use an external floor temperature sensor, an external temperature sensor wire is connected instead of a jumper.
After power is applied to the Product input, the red LED on the front panel lights up. The device is ready for use.
3. OPERATING ORDER
Appearance of the device and liquid crystal display.
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Indicator operation modes:
SET - У set room temperature.
RT – Air temperature (current).
FT - Floor temperature (with using floor sensor)
3.1. Press the power button (red) to turn on the appliance. The device will click the relay, connect and disconnect the load. This will illuminate the green LED on the front panel, then turn off. The indicator will show one or two indicators of the displayed temperature (SET, RT, FT) in degrees Celsius.
3.2. Press the "↑" or "↓" arrow buttons to set the desired air temperature. The indicator will show the set temperature (SET). If necessary, correct this temperature. After 5 seconds, the device automatically switches to operating mode with room temperature indication (RT).
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When operating the Device with a connected temperature sensor floor, its indicator in normal operation shows two temperatures: the room temperature (RT) and the floor temperature (FT) alternating with an interval of 5 seconds . The device is set to automatic shutdown load when the floor temperature reaches the sensor ≥ 45° C.
4. DELIVERY INCLUDES
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Regulator Lark D02 -1 pc.
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Fixing frame - 1 pc .
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Fixing screws - 2 pcs.
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Floor temperature sensor - not included, you can purchase if necessary additional.
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Operation manual - 1 pc.
5. MANUFACTURER'S WARRANTIES
Warranty The term for the product is 3 months from the date of purchase.
The warranty does not apply to products that fail due to the fault of the consumer due to improper switching, overload, attempts at self-repair, loss of marketable appearance.