A single stage condensing furnace has one pressure switch with two hoses on the switch one for sensing the pressure at the draft inducer burner enclosure and the other for sensing proper venting pressure at the condensate collector box.
Furnace pressure switch high temp tubing.
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Problems with your pressure switch.
One hose is for sensing pressure at the draft inducer and the other serves as a venting pressure sensor.
Rheem furnace parts price each rheem furnace parts 79 21491 83 3 16 x 18 silicone rubber tubing for pressure switches 400f.
Onetrip parts furnace pressure switch high temp tubing 3 16 i d.
A single stage condensing furnace has two hoses on the pressure switch one to sense pressure at the draft inducer and another for sensing venting pressure at the condensate collector box.
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Onetrip parts furnace pressure switch high temp tubing 3 16 i d.
Supco red air tubing hose for furnace pressure switches 1 4 x 60 ssrt145 10 75 3 36 1 oz onetrip parts furnace pressure switch high temp tubing 3 16 i d.
Two and three stage furnaces can have to up three hoses.
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Two stage furnaces may have two pressure switches and modulating furnaces may have three pressure switches.