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Reviewed in the United States on December 26, 2023
I wasn't able to find the "correct" original switch (made by the same manufacturer) for my boiler in stock anywhere. Figured I'd try this. Also ordered a cheap manometer to calibrate it and verify that the boiler's air supply was in spec. All good. Installed and got the boiler running again without an expensive service call.
Grampy
Reviewed in the United States on November 22, 2021
Compact size.Instructions are clear, and adjustment/ calibration was easy. Several springs are included to allow the correct "setpoint". The kit even includes the correct Allen wrench for the calibration.My situation, the NC contact on my current (38 yo similar) SPDT switch for my furnaces forced draft fan was open and would not close, thus preventing my furnace from starting.The good news is this new switch is a perfect replacement. Comes with.everything you need except the vacuum hose (available @ any autoparts store). mounting hardware brackets etc. This switch is versatile, it comes with orifaces allowing it to have a time delay, My situation does not use a time delay.The bad news, even with Amazon prime it would have taken a week to get delivered. I found it available elsewhere and drove to get it. The retail price was
GSS
Reviewed in the United States on January 22, 2017
Very good design, for low air pressure switch, it is possible to set any low differential pressure setting required.
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