HY08-03 series thermostats are stand-alone microprocessor based thermostats with LCD display. The thermostats are designed to on/off control the fans, valves, dampers or electric heaters in fan coil units, air-conditioners and heating applications.
Models are available for heating/cooling/ventilating control of 2-pipe or 4-pipe fan coil units.
The fan speed can be manually controlled by the fan speed control pushbutton. It is wired to run high/medium/low speed continuously or to automatically change the fan speed, while with other models there is a choice of running the fan continuously, or cycling it with the thermostat.

• Features

  ● Attractive modern styling makes this thermostat ideal for locating in the 
    occupied space
  ● Digital LCD display of room ambient temperature and user selected 
     temperature setting on demand
  ● Adjustable heating/cooling/ventilating mode control
  ● Adjustable manual 3-speed or automatic fan speed control and on/off control 
     output for valve
  ● Model available for cycling fan control
  ● Thermostat mounted directly onto a wall or standard junction box
  ● Model available for 24Vac, 85-260Vac, power input also
  ● Reliable DC power supply by transformer
  ● Reliable output by relays

• Functions

  ● Cool, Heat and Vent.
  ● Room Temperature Setting
  ● Detect and Display Room Temperature
  ● Manual/Auto Fan Speed
  ● Low Temperature Protection
  ● Clock（Optional）
  ● Sleep（Optional）
  ● Infrared Remote Control (Optional)
  ● Blue Backlight（Optional）
  ● 5+2 or 7 days 4 periods Programmable  (Optional)