Lennox 26W85 Pressure Switch R-407C This is the primary elbow

This is the primary elbow assembly

the switch should only open when it reaches the 210F threshold

Can the Robertshaw 11-193 be used for high-pressure refrigerant lines

this DPDT (Double Pole Double Throw) relay manages the timing of the blower motor and inducer fan

Lennox 26W85 Pressure Switch R-407C This is the primary elbowMaintain precise combustion control with the Lennox 26W85 Pressure Switch, an essential dual stage pressure switch designed for Lennox G61 furnace series and high efficiency HVAC platforms. This OEM Lennox replacement part (part number 101021 09) features factory calibrated set points of 0. 90" W. C. for low fire and 1. 30" W. C. for high fire stages. As a 2 stage pressure switch with SPST electrical configuration, it monitors the inducer motor's