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meaning the user must manually switch the system between heating and cooling modes via the "Menu" or system toggle
With a robust 660 PSIG working pressure and a 15% bleed port for balanced pressure during off-cycles
Industrial-Grade Build: Designed to withstand high-ambient temperatures typical of heat pump and central air conditioner applications
What systems use the A-4400-607 drain valve
Danfoss 003Z1333 Valve 318172-701 meaning the user must manuallyThe Danfoss 003Z1333 is a high performance Pressure Independent Control Valve (PICV) from the AB QM series, specifically engineered for 3 4" hydronic piping systems. This valve eliminates the need for complex Cv calculations by integrating a differential pressure controller directly into the assembly, ensuring 100% valve authority regardless of system pressure fluctuations. Designed with a robust CW 617N brass body, it handles an adjustable flow range