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Pneumatic HVAC Relays

Electric–Pneumatic Relays: Plastic

The EP101 series is a plastic 3-way valve with molded barbed connections for 1/4'' pneumatic tubing. They can be wall or panel mounted. Lighter and more compact than our EP201 series. Ports are marked 1-2-3. Flow is 600 SCIM at 20psi. The Pneuline models are an exact substitute for the brands on this selection chart:

Part # Relay MFG  
265-1002 Siemens Powers Call... Add to Order
265-1003 Siemens Powers Call... Add to Order
265-1006 Siemens Powers Call... Add to Order
265-1007 Siemens Powers Call... Add to Order
265-1008 Siemens Powers Call... Add to Order
AL-182 Barber-Colman Call... Add to Order
EP101-277 Pneuline Call... Add to Order
RP417A1009 Honeywell Call... Add to Order
RP417A1082 Honeywell Call... Add to Order
RP418A1073 Honeywell Call... Add to Order
RP418A1081 Honeywell Call... Add to Order
RP418A1099 Honeywell Call... Add to Order
RP818A1012 Honeywell Call... Add to Order
RP818B1010 Honeywell Call... Add to Order

Electric–Pneumatic Relay: Metal

Change branch or main signals from one source or pressure to another with this compact, 3-way diverting solenoid valve. Ideal for occupied– unoccupied, outdoor changeover, summer–winter or many other uses.

The EP201 is a cast metal valve with 1/8'' NPT ports marked N.O., N.C., and common. Includes two barbed fittings for either 1/4'' or 5/32'' pneumatic tube. The Pneuline models are an exact substitute for the devices in this selection chart:

Part # Relay MFR  
AL-155 Barber-Colman Call... Add to Order
V-2410-5 Johnson Controls Call... Add to Order

Electric–Pneumatic Relay: Miniature

  • High capacity miniature EP relay
  • Metal body at a popular price
  • Compact size is convenient for panel mounting
  • For up to 120psi
  • 3-way, 1/8'' FPT connection
Part # Miniature EP Relay  
EP401-120 Miniature EP Relay 1/8" Threaded Connections Call... Add to Order
EP401-240 Miniature EP Relay 1/8" Threaded Connections Call... Add to Order
EP401-24dc Miniature EP Relay 1/8" Threaded Connections Call... Add to Order
HMPS-1200-121-SPL 1/4'' - 5/32'' barb x 1/8'' MPT Adapter Call... Add to Order

Pneumatic–Electric Relay: DPST

The PE201 closes or opens an electrical circuit using a predetermined air pressure signal. Typical applications includes the control of air conditioners, fans, electrical heating

Connection: 1/4'' barb elements, ducts furnaces and more.
Switch: 12A
Signal: 3 to 30 psi adjustable

Pneumatic–Electric Relay: SPDT

The PE301 series switches are SPDT snap switch activated by an adjustable pneumatic signal. Typical uses are to activate fans, heaters, pumps, chillers, alarms and more.

Connection: 1/4'' barb
Switch:
16A
Signal: 3 to 30 psi adjustable

Pneumatic–Electric Relay: Two-stage

The P10FC-4 provides two-stage pressure electric control for self-contained heating-cooling unit ventilators with mechanical refrigeration.

Connection: 1/4'' barb

  • Features two enclosed snap-acting SPDT switches with color-coded terminals
  • Includes a calibrated indicator scale for the high trip point

Pneumatic–Electric Relay: Duplex

The P10PA provides continuous fan operation and damper control during day cycle and intermittent fan operation during night cycle. It has Two of the switches are mechanically joined and operate together.

  • Three enclosed normally closed SPST switches
  • Factory calibration of the mechanically joined switches
  • Two calibrated indicator scales to display high trip points

3-SPST 6A Switches: 1 opens high 6#, 2 & 3 open high 18# three normally closed SPST switches.
Connection:
1/4'' barb
Signal: 3 to 30 psi adjustable

Pneumatic Relays

Pneumatic relays perform very useful functions in control systems. All brands work in the same pneumatic signals and can be easily interchanged. Don’t be stuck on a single brand. Pneuline Controls perform the same function just as reliably as brands costing more than double. Standardize and stock one model and use it as your universal replacement. This chart will show you the Pneuline model you need.

Part # MFG Relay Type  
RCC-1006 Kreuter Low-Pressure Selector Call... Add to Order
RCC-1008 Kreuter HI-Pressure Selector Call... Add to Order
RCC-1009 Kreuter Diverting-Switching Call... Add to Order
RCC-1111 Kreuter Hi & Lo Pressure Selector Call... Add to Order
RCC-1504 Kreuter Reversing Call... Add to Order
RCC-1514 Kreuter Averaging Call... Add to Order
RCC-1516 Kreuter Booster-Repeater Ratio-1:1 Call... Add to Order
RP973A1013 Honeywell Averaging Call... Add to Order
HMPS-100-23-SCS Johnson Hi & Lo Pressure Selector Call... Add to Order