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Integral vent limiter simplifies installation by meeting safety standards for indoor venting without extra piping
Dual-run functionality manages both the compressor (50 MFD) and fan (5 MFD) circuits with a single component
this genuine Lennox replacement part maintains the original equipment’s airflow dynamics and electrical resistance specifications
Common Questions Can I use the White-Rodgers S84-11 to replace a lower VA transformer
and Tappan units
Robertshaw 2374-498 Air Switch Integral vent limiter simplifies installationFor veteran technicians and contractors requiring a reliable pressure sensing solution, the Robertshaw 2374 498 Air Switch is a high performance, field adjustable air pressure switch designed for residential and light commercial HVAC applications. This SPDT air switch features an adjustable set point range of 1. 0" to 4. 0" WC, making it a versatile 1: 1 replacement for critical components in furnaces, electronic air cleaners, and humidifiers.
