McDonnell & Miller FS7-4WJ Switch 321702-401 central A/C

central A/C

thermal protection

Using this OEM York contactor ensures that the electrical footprint matches the original system design

ensuring precise alignment and gas manifold pressure distribution across the heat exchanger inlets

Enhances overall HVAC system efficiency and reliability

McDonnell & Miller FS7-4WJ Switch 321702-401 central A/CThe McDonnell & Miller FS7 4WJ Flow Switch (Part Number 120261) is an industrial grade liquid flow switch engineered for high pressure applications where environmental protection is paramount. This unit features a 1 1 4" BSPT connection and is housed in a rugged NEMA 4X enclosure, providing superior resistance against corrosion, moisture, and debris in mechanical rooms or processing plants. Rated for a maximum pressure of 300 PSI (21 kg cm), the FS7