this transformer is appropriate for use in various commercial environments

Reference the compressor’s data sheet or the electrical diagram on the terminal cover

Can I use this switch in both gas and electric furnaces

Common Questions How do I know if the limit switch has tripped

Maxitrol 12A39 Vent Limiter this transformer is appropriate forThe Maxitrol 12A39 Vent Limiter is a critical brass gas regulator accessory engineered for indoor gas pressure regulator installations where piping a vent line to the outdoors is impractical or prohibited by code. This 3 8" NPT automatic vent limiter features a precision machined ball check valve mechanism that permits free inhalation for sensitive diaphragm movement during normal operation but limits gas escape to within ANSI Z21. 80 and ANSI Z21. 18