Temperature and pressure relief valve

Detail ID 2.0103.1
Topic
Safety Devices
Subtopic
Water Heating
Desired Outcome

Safely discharge excessive energy (pressure or temperature) from water heating system

SF Single Family Site-Built Housing
MH Manufactured Housing
MF Multifamily Housing

Specifications

  • SF
  • MH
  • MF
Specification Objective

Select temperature and pressure relief valve in accordance with IRC and according to manufacturer specifications that comply with ANSI Z21.22

Ensure proper equipment selection

  • SF
  • MH
  • MF
Specification Objective

Temperature and pressure relief valve will be installed in compliance with IRC, HUD code, and according to manufacturer specifications

Ensure proper installation

  • SF
  • MH
  • MF
Specification Objective

Install discharge tube of temperature and pressure relief valve so that it:

Discharges to a readily observable location either 6 inches or less from the floor or overflow pan or to the outdoors

Discharges in a manner that does not cause personal injury or structural damage

Flows by gravity and without any trap

Is not directly connected to the dwelling drainage system

Does not contain any valves or tees, nor end with a threaded connection

Ensure proper discharge location

View Sub-Topic:
Water Heating