TP97 pneumatic thermostats are used to provide proportional control of pneumatic valves and damper actuators in heating and air conditioning systems. They incorporates a relay amplifier giving sensitive control and facilitating averaging control, which"|Pneumatic Thermostat: TP970 Series: Direct Acting Heating: Day 59 to 90F: Night 50 to 80F: Day 16psi: Night 21psi
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