Maximum Operating Temperature 200 °F
Minimum Control Temperature 55 °F
Maximum Control Temperature 175 °F
Capillary Tube Length 20 ft
Input Voltage 24V AC
Output Signal 135 ohm Potentiometer
Features & Benefits:
- Compensates for effects of ambient temperature on the case and tubing
- Sensing element capillary tubing allows remote mounting of sensing element
- Setpoint may be read and adjusted through cover
- Throttling dial inside case adjusts proportioning range
T991A proportional temperature controllers provide modulating control of water or air temperatures in ducts, tanks, and similar applications. Standard models have a sensing bulb and capillary; fast-response models have a coiled sensing element that operates at least four times faster than standard controllers, depending upon operating conditions
