Room Thermostat of Programmable Type

Model Number

ED-300

Application

The ED-300 thermostat based on the auto-tuning method has a special program that can reserve the weekly operation of the heating / or cooling systems. It is designed to maintain the room temperature at the set degree by sending a signal output to an actuator to open or close the hot water valve when the room temperature rises or lowers than the set temperature. It can be applied for ON/OFF control of heating systems such as district heating, a boiler, a heating fan and a high thermal heater and air-conditioning system etc.

How to control the Valve

The output signal of a room thermostat is ON or OFF according to changes of room temperature The power supply to a motorized valve is ON or OFF according to a signal output the room thermostat. When power is ON the valve is opened and hot or cold water flows to control the room temperature When power is OFF the valve is closed and the supply of hot/or cold water is stopped to control the room temperature

A signal output of a room thermostat is ON or OFF according to changes of room temperature. According to the output signal power of a boiler is ON or OFF and the boiler starts or stops operating to control the temperature

Features

• User can select Celsius or Fahrenheit when ordering.
• A weekly time schedule program is built-in.
• It is programmed to protect a boiler from being frozen to burst in winter.
• It is designed to memorize the set temperature at the time of a power failure. Users do not need to reset it when power returns.
• Easy to set the temperature by dialing a knob.
• Easy to check the temperature on a wider display window.
  

Specification

• Input Power : AC 220V/50~60 Hz
• Max Load Current : Resistance Load 10A
• Tempe Range : 5°C~ 35°C
• Temp Setting Scale : 0.5 °C/Step
• ON-OFF Differential: 1°C Max.
• Temp Indication Accuracy : 1.0°C Max
• Ambient Temp : 5°C~ 45°C
• Case Material : Fire-resistant ABS

Dimension

How to use