Pressure switch settings

drhvac

Where could I find charts on pressure switches? When you have a pressure switch fault, how are you suppose to determine if the problem is with the furnace or pressure switch if the pressure switch manufacturer doesn't put the design cut out pressure on the switch? Burns me up when this happens. I see this with Honeywell, Tridelta, and some other manufacturers. What does it take for these f...... manufacturers to stamp the pressure on it??

Abracadabra

Use a manometer to check actual pressure and compare to the pressure switch specs. Usually there's something else going on, and the pressure switch is not at fault. I've often been able to find pressure specs by contacting tech support if they are not listed for the model. Which furnace or pressure switch are you looking at?

Paul S_3

X2 what @Abracadabra said..... also Fieldpiece makes a manometer and pressure switch tester....good tool to have...http://www.fieldpiece.com/products/detail/sdmn6-dual-port-manometer-and-pressure-switch-tester/pressure-switch-testing/

drhvac

I have a manometer and use it on every job. If you don't know what the switch is set to open up at, it makes it more difficult to troubleshoot. That all I'm saying.

lchmb

I find most online..... love having a computer in my truck...

Tim McElwain

If it is not in the I and O Manual then contact the manufacturer.