Built with a NEMA 48 frame and an open-air over (OAO) enclosure

the R1747B comes equipped with a shield to protect the motor from contamination and moisture ingress

While it offers excellent modulation for 1 Ton systems

specifically within Intertherm

Heil Quaker ICP 1149947 Screens 320720-756 Built with a NEMA 48The Heil Quaker ICP 1149947 Screens are essential components for protecting high efficiency HVAC ventilation systems. This 3 inch vent screen 10 pack is designed specifically for direct vent furnace and boiler applications, serving as a critical barrier at the termination point. For a technician, keeping these on the truck is mandatory to prevent common call backs related to condensing furnace debris, bird nesting, or rodent infiltration in the air