depot pull
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Ships within 48 hours · Estimated delivery Sep 11 - Sep 16
When replacing a failed IEC 70021542
Failure to close is often caused by debris or pipe scale trapped between the disc and the seat
Optimized Airflow: Engineered for 125 CFM delivery to maintain consistent temperature gradients across the heat exchanger
This 1/4 HP motor operates at 200-230V with a rated speed of 825 RPM
Optimized Differential: A 21°F thermal differential ensures efficient system cycles and protects the compressor from excessive wear
Lennox 33W18 Pressure Switch R-407A When replacing a failed IECThe 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
US$ 54.95
US$ 44.95
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US$ 79.95