Lennox 12M92 Pressure Switch 320735-701 The MT28-1VI features a 100%

The MT28-1VI features a 100% suction-gas cooled motor

The HGBE-5 can be installed horizontally or vertically

the manual switch overrides the logic from the 24V controller

Field technicians will appreciate the precision fit for 5-ton FX4

eliminating the need to drain the system or break pipe connections

Lennox 12M92 Pressure Switch 320735-701 The MT28-1VI features a 100%The Lennox 12M92 Pressure Switch is a critical genuine OEM furnace safety component designed for specific Lennox gas furnaces and heating units. This combustion air pressure switch is factory calibrated to activate at 0. 70" WC (inches water column), ensuring the inducer motor is generating sufficient draft before the ignition sequence begins. As a furnace pressure switch replacement, the 12M92 monitors for venting obstructions or mechanical failures