Three‑Pipe Thermostats Are Available for Unit Ventilator Applications Where the Outdoor Damper Must Operate When the Thermostat Is Manually Set to Day Operation
Universal Locking Cover with Satin Chrome Finish and Horizontal, Vertical, or Blank Window Options‑Other Covers Available
Adapter Plate in Thermostat Kits Covers Existing Thermostat Watermark
Backplate Has Molded Air Connections‑No Separate Fittings Needed
Durable TP970 Series Thermostat Pilot Operated for High Capacity
Direct Acting (DA) and Reverse Acting (RA) Models Are Available
Pneumatic thermostat with night setback used to provide proportional control of pneumatic valves and damper actuators in heating and air conditioning systems. Replacement kits are available for Johnson, Powers, Robertshaw, Barber‑Colman, and older Honeywell two‑pipe pneumatic thermostats.