Water Heater Vacuum Relief Valve Installation

Directly above the vertical line that feeds the tank my hot water tank is under the.

Water heater vacuum relief valve installation.

Understanding water heater installation code requirements can be a real pain. 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. 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. In order to gain occupancy an inspector informed me that i need to install a vacuum relief valve on the cold water supply line for my hot water tank.

This is especially crucial for cast iron valves. Valve the purpose of a vacuum relief valve is to keep the water in the tank and prevent siphonage. The vacuum relief valve shall be ansi z21 22 rated and csa certified. In all cases air entry is required to enable the system to reach an equilibrium.

Uma solar vacuum relief valve. Wrap the threads of the new tpr valve with plumber s tape or apply joint compound liberally. Violating these codes may result in fines voiding your warranty or putting your family at risk. T p valve the temperature and pressure relief valve is an important safety device which goes off when your tank exceeds 210 degrees fahrenheit or 150 psi.

The vacuum relief valve is installed at the highest point in the system. Screw the valve into the tank until it is hand tight and then use a wrench to tighten it until the outlet is facing towards the overflow drain pipe. A valve installed in any position other than vertical might not perform correctly. I purchased a vacuum relief valve and the installation instructions that came with it states that it should be installed on a horizontal line above an elbow.

Tempering valves can be installed anywhere they are needed. For flanged valves be sure to draw the bolts down evenly. With a bottom supply tank nothing except a check valve is going to keep the water in the tank once a hot water faucet is opened so air can break the vacuum in the tank. The vacuum relief valve shall have an all brass body and include a protective cap.

They have a brass body construction with npt male inlet connection and a protective cap. Reconnect the drain pipe. Hot in on one side cold in on the other and the tempered water out of the center to the system.