Overview Pneumatic thermostat with night setback used for proportional control of pneumatic valves and damper actuators. Replacement kits are available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell two-pipe pneumatic thermostats. Features Durable TP970 series thermostat Pilot operated for high capacity. Direct Acting (DA) and Reverse Acting (RA) models are available. Three-pipe thermostats are available for unit ventilator applications where the outdoor damper must operate when the thermostat is manually set to day operation. Adapter plate in thermostat kits covers existing thermostat watermark. Backplate has molded air connections-no separate fittings needed. Universal Locking cover with satin chrome finish and horizontal, vertical, or blank window options-other covers available. Product Specifications ApplicationWall Thermostat, Day/Night operation Airflow Usage0.011 scfm (5.2 mL/s) Dimensions (in.)3 1/4 in. high x 2 in. wide x 1 5/8 in. deep Dimensions (mm)83 mm high x 51 mm wide x 41 mm deep Maximum Safe Operating Pressure (psi)25 psi Maximum Safe Operating Pressure (kPa)170 kPa Temperature Range (F)100 F maximum IncludesOrder Cover Separately MountingWall mount Approvals, Underwriters Laboratories Inc.N/S Approvals, Canadian Standards AssociationN/S Setpoint Temperature Range (F)Day: 59 F to 90 F, Night: 50 F to 80 F Shipping and Storage Temperature Range (F)150 F maximum Shipping and Storage Temperature Range (C)66 C maximum Approvals, Factory MutualN/S Sensor ElementBimetal Throttling Range (F)2 F to 10 F Throttling Range (C)1 C to 5 C Connection Size (in.)N/S Differential Pressure Range (psi)N/S Differential Pressure Range (kPa)N/S Approvals, NEMA StandardN/S ActionDirect Acting Heating, two temp. SetpointDay/Night Number of Pipes2 Changeover Pressure (psi)Day 20 psi, Night 25 psi Changeover Pressure (kPa)Day 137 kPa, Night 172 kPa Mainline Pressure Range (psi)N/S CapacityN/S Control Range (fpm)N/S Control Range (m/s)N/S Number of Sensor InputsN/S Remote Control Point AdjustmentN/S Approximate Throttling Range, Midscale (psi)N/S Approximate Throttling Range, Midscale (kPa)N/S