Specifications:
Srt series electronic and machinery constant thermostats can be used in business, industry and civil building for control of blower fan scroll and hot water valve of central air-condition heating and air conditioning system. Dial switch function: Power switch(onoff);operation mode switch(heatcool)fan speed switch(low 1-- mid 2-- high 3). To control the speed of 3-gear fan scroll,3-line electric valve and 2-line electric valve, electromagnetic valve, switch air valve of 3-line air-valve