Pros, Join Our TradeMaster Program!
Description
The 2212-318 and 2212-319 Dual Setpoint/Deadband Pneumatic Room Thermostats are designed for the proportional control of pneumatic valves, damper actuators, or other final control devices in environmental control systems. These devices are used when it is desirable to set up, between selected heating and cooling setpoints, a temperature span within which the HVAC system uses no energy for heating or cooling. The high capacity, two-pipe, pilot-operated, relay-type design provides pneumatic feedback for accuracy and stability over the entire operating range.

These thermostats are available in either direct- or reverse-acting models, each utilizing two bimetals, one heating and one cooling, to interrupt the deadband (branch) pressure. In the direct-acting model, the heating bimetal modulates the pressure between zero and the deadband pressure, and the cooling bimetal modulates the branch pressure between the deadband pressure and main air pressure. In the reverse-acting model, this action is reversed. The deadband pressure is adjustable in the field, to adapt to specific applications. Two concealed setpoint dials, one heating and one cooling, are used to set the individual heating and cooling setpoints to the desired values. This creates the desired deadband between the two selected setpoints. All calibration functions are accessible from the front of the thermostat. The use of a blank cover (21-928) is recommended with this device. Other cover options may be utilized if desired.

Features
  • Factory-calibrated, stainless steel ball-in-seat provides pneumatic feedback for stable, linear operation.
  • Deadband is easily selected by setting the desired heating and cooling setpoints.
  • Field-adjustable deadband output pressure is factory set at 8 psig.
  • Leak-proof, self-closing branch gauge tap.
Read more
Manuals (1)
Specs
Temperature Range (F):
55°F - 85°F
Action:
Reverse Acting
Max Pressure (PSI):
30
Heating %:
57 to 75°F
Cooling %:
65 to 83°F
Heating %:
5.5 psig at setpoint
Cooling %:
10.5 psig at setpoint
×
Questions?
Speak with a real person who will go out of their way to help!
Closed Now: Phone Hours
Monday – Thursday
8am–7:45pm ET
Friday
9am–7:45pm ET

Product Reviews

Product Q&A

Add-on Item

This item is cost-prohibitive to ship on its own but is available to ship with orders over $200.

Why don't we show the price of this item?

We try to always offer you the lowest prices possible, but some manufacturers require that we only show these low prices once you take further action.

To see the price, simply add the item to your cart or sign in.