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Pressure switch settings
- Ronniereid
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8 years 10 months ago #1383
by Ronniereid
Pressure switch settings was created by Ronniereid
I have a Belaire Model 3112DL. It is a Duplex compressor with 2 pressure switches. I had to order 2 new switches because the contacts were badly burned on existing switches. The compressor would cut off at 140 psi and turn on at 130 psi. The new switches on arrival were preset at 145/175 psi. Do both switches need set the same, and should they be set as high as they are. I have not installed them yet.
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8 years 10 months ago #1384
by MTR-Admin
Replied by MTR-Admin on topic Pressure switch settings
Thanks for the post Ronniereid,
Yes, the Pressure Switches should be pre-set at 145 PSI cut-on and 175 PSI cut-off, as this is the standard OEM pressure setting for two-stage units like you have.
It depends on how you'd like the unit to operate, you can either set the pressure switches at different pressures so that the two motors alternate on/off, or run in tandem. If you install them stock "as-is", the switches will obviously turn the motors on/off simultaneously and shut off the same.
Feel free to post with any additional questions you may have and I'll do what I can!
- MTR
Yes, the Pressure Switches should be pre-set at 145 PSI cut-on and 175 PSI cut-off, as this is the standard OEM pressure setting for two-stage units like you have.
It depends on how you'd like the unit to operate, you can either set the pressure switches at different pressures so that the two motors alternate on/off, or run in tandem. If you install them stock "as-is", the switches will obviously turn the motors on/off simultaneously and shut off the same.
Feel free to post with any additional questions you may have and I'll do what I can!
- MTR
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