For a clean drop-in installation

and SSZ heat pumps

High Pressure Resilience: Rated for up to 150 PSI

While both share a similar 5/8" nominal top width

Outdoor Case

Daikin-McQuay 90370 Relay 320788-703 For a clean drop-in installationThe Daikin McQuay 90370 Relay is a heavy duty 24V SPDT fan relay engineered for precise switching in commercial and residential HVAC systems. Designed with a single pole double throw (SPDT) configuration, this component provides essential control over fan motor speeds and auxiliary circuits, ensuring efficient air handlers and furnace operations. As a veteran preferred HVAC motor relay, it serves as a direct drop in for Daikin 90370 and McQuay 90370