This Apollo 19 series relief valve provides reliable overpressure protection for high-demand thermal systems

this motor requires a 5 MFD / 370V run capacitor which must be purchased separately to ensure proper motor start-up and running amps

and 16-inch flying leads into a single

but we recommend applying a thin bead of high-temperature RTV silicone or specialized gasket material to the heat exchanger interface to ensure a 100% airtight seal

the failure typically resides in the electronic motor control module's power FETs or thermistor

Armstrong Fluid Technology 816305-325K Impeller Kit 319847-401 This Apollo 19 series reliefThe Armstrong Fluid Technology 816305 325K Impeller Kit is a precision engineered replacement component designed for high efficiency fluid circulation. Featuring a 4. 25" plastic impeller, this kit is vital for maintaining the hydraulic performance and pump efficiency of your HVAC system. Engineered for compatibility with specific Armstrong series pumps, the kit includes the necessary hardware to ensure a secure fit and optimal flow rate. Using