Vacuum Breaker Installation On Water Heater

The hvb is an avb and must follow the installation parameters of table 603 2.

Vacuum breaker installation on water heater.

Vacuum breakers provide a simple dependable way to relieve unwanted vacuum which may develop in a closed vessel or pipeline. Pressure zone assemblies strainers test kits vacuum breakers. The vacuum relief valve shall be ansi z21 22 rated and csa certified. Connect the hot and cold water lines to the nipples using unions.

It must be installed above the highest point in the system usually the highest sprinkler head or the highest slope in the yard. Siphonage install watts series 288a vacuum breakers. Series n36 water service vacuum relief valves are used in water heater tank applications to automatically allow air to enter into the piping system to prevent vacuum conditions that could siphon the water from the system and damage water heater tank equipment. Hvbs must be installed at least six inches above the ground surface.

A hose connection vacuum breaker should be installed on each faucet or hose bibb that is connected to the potable water supply to prevent backflow into the water supply. Standards tested and rated to ansi z21 22 csa certified specifications a watts model n36 m1 vacuum relief valve shall be installed on domestic hot water supply tanks heaters unit heaters steam kettles as indicated on plans. Install a listed temperature pressure relief valve in the opening on the side of the water heater. They have a brass body construction with npt male inlet connection and a protective cap.

Many water heaters especially traditional electric ones require changes to your wiring and potentially the breaker box. It needs to be installed after the cold water shutoff into the heater. In this video we demonstrate h.