Conventional vacuum breakers like the A5572 should not be used if the steam trap discharges into a vacuum return system

if it is too shallow

The 621952 is a Clockwise (CW) rotation motor as viewed from the lead end

Does this guard interfere with airflow or combustion air intake

this genuine OEM replacement part handles the rigorous cycling of modern HVAC systems

Johnson Controls T58EA-12 Thermostat Freon Conventional vacuum breakers like theJohnson Controls T58EA 12 Low Voltage Thermostat, SPDT with Center Off Position, 55 to 90 Degree Range, Cool Warm Temperature Scale, Positions One M25AG Damper Motor Actuator T58EA 12 is identical to T58EA 12C