The pneumatic high and low temperature detection thermostats are used on pneumatic heating, cooling and air conditioning systems. These thermostats must be used in areas protected from the weather.
On a typical high temperature sensing application the thermostat shuts down air conditioning or ventilating fans when the duct temperature becomes excessively high. The low temperature detection thermostat stops a fan or closes a damper when the temperature at any one-foot or greater section of the sensing element drops to or below the set point.
- Snap acting pneumatic switch - no leakage prior to opening
- Easy to adjust settings
- Normally closed 0.022- inch (0.6 mm) diameter restrictor air valve bleeds to less than 2 psig (13.8 kPa) when supplied with 20 psig (138 kPa) through 40 scim (11 ml/sec) restrictor when switch is open
- Barbed fitting for push-on connection of 1/4-inch OD plastic tubing