Model PS1503 - Made in the USA!
Duct Airstat senses positive pressure in a forced air heating and/or cooling system. The single pole, single throw, snap-acting switch is activated by a diaphragm with integral pressure probe inserted directly into the duct or plenum. The Duct Airstat can be used to initiate such auxiliary devices as: Duct Boosters, Electronic Air Cleaners, Electrical Duct Heaters, and Humidifiers. The electrical contacts of the switch are closed upon sensing positive air pressure generated by the blower.
278 VA Pilot Duty at 24 Volts AC
300 VA Pilot Duty at 115 to 277 Volts AC
15 AMPS Non-Inductive to 277 Volts AC
Electrical Switch: SPST, N/O, Snap Action Contacts, Non Adjustable
Operating Pressure/Position: On pressure rise at +.05 + .02” W.C. (Diaphragm Vertical)
Maximum Pressure: 1/2 PSI
Operating Temperature Range: -40 to 1900 F.
Operating Position: Diaphragm must be vertical
Pressure Probe: Self-sealing, integral pressure probe
Dimensions: 5” Diam., 5 1/2” Across Bracket, 3” High
Download the Instruction Manual
Use to increase air flow through duct work or as an exhaust fan to vent non-combustible air or fumes from enclosed spaces. The maximum air flow operating temperature for the EF-Series is 150F. Made in the US.
Sale Price: $215.00
For 8" Flex or Metal Duct. This fan is 325 CFM. Boost air flow and increase the comfort level in hard to heat or cool rooms. Made in the US.
Sale Price: $95.00