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Posted by Dee on September 30, 2004 at 09:33:42:
We recently had a new gas-fired Peerless 62 (steam) boiler installed in our building. There is a Honeywell L404C pressuretrol on the right, a Pressure Gauge in the middle and a "Cut-in" control on the left.
I have the cut-in set at 0.5 psi and the Hi-limit at 1.5 psi.
My questions are should there be a seperate "Main" pressuretrol, or is the L404C it? Also, I've read that the L404C operates between 2 and 15 psi: Will it work set at 1.5, or even 1.0?
I don't see anything that says "Differential" anywhere.
Thanks for any information on these settings as I've read many times in your forums that a psi over 1 is probably not neccessary.