Intro to HVAC Mechanical Code Regulations : Hydronic Piping

 Overview

• Focus: Piping used in heating and cooling systems, conveying water, antifreeze solutions, steam, and condensate.

IMC Section 1201: General

• Scope: General guidelines for hydronic piping in occupied spaces.
• Topics:
  • Piping system sizing
  • Piping system external standards

IMC Section 1202: Material

• Scope: Piping materials and related standards.
• Topics:
  • Piping materials
  • Material restrictions
  • Material ratings
  • Piping material standards
  • Pipe fittings and valves

IMC Section 1203: Joints and Connections

• Scope: Guidelines for pipe joints and connections.
• Topics:
  • Joint and connection approval
  • Preparation of pipe ends
  • Joint installation
  • Joint types and proper joints according to pipe materials

IMC Section 1204: Pipe Insulation

• Scope: Insulating hydronic pipes.
• Topics:
  • Insulation characteristics
  • Required insulation thickness

IMC Section 1205: Valves

• Scope: Placement and installation of valves.
• Topics:
  • Required valve locations
  • Reduced pressure valve installation

IMC Section 1206: Piping Installation

• Scope: Installation requirements for hydronic piping systems.
• Topics:
  • System drainage
  • Potable water protection
  • Piping penetrations and clearances
  • Building material contact
  • Steam piping
  • Pipe stress prevention
  • Condensation control

IMC Section 1207: Transfer Fluid

• Scope: Guidelines for transfer fluids.
• Topics:
  • Flashpoint
  • Compatibility of transfer fluids

IMC Section 1208: Tests

• Scope: Testing hydronic piping systems.
• Topics:
  • Testing procedures and standards

IMC Section 1209: Embedded Piping

• Scope: Guidelines for embedded piping.
• Topics:
  • Piping materials
  • Pressurization during installation
  • Embedded joints
  • Non-embedded related piping
  • Insulation and thermal break requirements

IMC Section 1210: Ground Source Heat Pump Loop Systems

• Scope: Regulations for ground source heat pump loop systems.
• Topics:
  • Piping material and ratings
  • Material standards
  • Fittings, joints, and shut-off valves
  • Pipe installation and testing