Float ermostat ILH108
ILH108 is mainly used in central air-conditioning and heating system. It works with temperature sensor. It provides temperature control for central air-conditioning fan coil cool / heat motorized valves or other actuating mechanism in proportional and integral way. It can also control the fan blower of fan coil units and adjust the fan speed. When the electronic thermostatis turn off or power on,it can output a return signal to make the motorized valves or other actuating mechanism return.
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Fan Coil Thermostats Series
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Float ermostat
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- Product description
- Technical data
- Measurement
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- Commodity name: Float ermostat ILH108
ILH108 is mainly used in central air-conditioning and heating system. It works with temperature sensor. It provides temperature control for central air-conditioning fan coil cool / heat motorized valves or other actuating mechanism in proportional and integral way. It can also control the fan blower of fan coil units and adjust the fan speed. When the electronic thermostatis turn off or power on,it can output a return signal to make the motorized valves or other actuating mechanism return.
Characteristics
◆ Auto-return function when turn off or power on.
◆ Power surge and instant pulse protection.
◆ Overtime protection function.
◆ Large LCD shows the ambient temperature, state and air volume.
◆ With system switch and fan speed switch.
◆ Inside or outside long-distance temperature sensitive element (NTC thermistor)
◆ Cool/Heat shift: clockwise or anti-clockwise direction signal output (summer or winter)
◆ With ABS fireproof plastic, compliance with UL-94 standard.
◆ With flexible installation and convenient wire-connection.Wiring Diagram
Instruction
1. Cool/heat shift: When power on (power supply switch at “ • ”), the thermostat will selfcheck, and then make the valve run for 150 seconds (or 300 seconds) continuously towards the closing end. When it finishes operation, the system will enter into turn off state. When the power supply switch moves to“
”, the LCD will show the cooling state symbol“”, the action signal will output forward; when it moves to“
”, the LCD will show the heating state symbol“”, the action signal will output backward. When it moves to“ • ”, the LCD will shut off, the valve will run for 150 seconds (or 300 seconds) continuously towards the closing end, then the system will be shut off.2. Fan: When the thermostat is in cooling or heating state, move the fan switch
, the LCD will display corresponding air volume symbol. The terminals will output power and provide operating power for the fan. If the thermostat isn’t connected to the fan, only 
or 
can be shown on the LCD. The symbol 
an only be shown when the thermostat is connected to fan completely and correctly.3. Temperature setting: When user presses △(increase)/ ▽(decrease)button, LCD display temperature setting will show increase or decrease accordingly. The increase/decrease rate is 1/1℃ oF. The adjusting range is 10~ ~86oF. When user stops pressing the button for over 5 seconds, the thermostat will change the setting temperature data in its memory, and then the LCD shows the ambient temperature. (You can choose the initialization setting point as ℃ 77 oF.)
4. Built-in/external sensor: When built-in NTC thermistor is used, the jumper J3 should be put to “Int” position. If the external NTC sensor is used, the jumper J3 should be put to “Ext” position.
5. The temperature range shown on the LCD is 0 40 or 32 ~ 99 oF.
Installation
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Technical Data
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Measurement
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