Precision Calibration: Factory-set L70-15F rating ensures consistent 70°F opening and 55°F reset points for reliable system protection

The MCS-S-P is designed to interface with standard pneumatic manifolds and sensor systems typically found in legacy Barber Colman HVAC installations

40 Amp draw and a requirement for a 5 MFD / 370V capacitor

The CTE-5202 includes an external input for contact closure from a building automation system to trigger energy-saving setback offsets

Lennox 33W18 Pressure Switch 322027-701 Precision Calibration: Factory-set L70-15F ratingThe Lennox 33W18 is a critical two stage combustion air pressure switch designed for specific Lennox high efficiency furnace models. This differential pressure switch ensures secondary heat exchanger safety by monitoring the inducer motor's draft performance. With a dual setpoint configuration of 0. 20" WC 1. 32" WC, this switch accurately sequences the low fire and high fire combustion cycles. Proper calibration of the Lennox 33W18 pressure switch is