Drain water heat recovery units

Designation Number:
CSA B55.2
Standard Type:
National Standard of Canada - Domestic
Standard Development Activity:
New Edition
ICS code(s):
71.120.30
Status:
Proceeding to development
SDO Comment Period Start Date:
SDO Comment Period End Date:
Posted On:

Scope:

This Standard specifies requirements for the durability and safety of vertically installed, falling-film drain water heat recovery (DWHR) units
This Standard applies to DWHR units of any diameter and length and configuration for use with potable water, and to their components and materials supplied by the manufacturer, their assembly and installation instructions, and their operation after assembly in accordance with these instructions. This Standard does not apply to site preparation or installation procedures.
This Standard is not intended as a design specification or as an instruction manual for untrained persons.

Project need:

The absence of a nationally recognized testing standard for performance verification has been a deterrent to promote Horizontal drain water heat recovery (DWHR) systems as an energy efficient product in the marketplace. Many new and existing buildings are unable to utilize current certified vertical DWHR systems such as: buildings without basements, shallow foundations, homes on permafrost, MURBS. The development of a testing standard for horizontal units would provide additional options to meet the demand of the marketplace with approved and safe low-slope horizontal DWHR systems. Establishing a nationally accepted testing procedure for low-slope Horizontal DWHR devices will provide recognized standards that will increase the confidence of consumers and authorities having jurisdiction in this emerging technology by verifying manufacturer's claims on system performance and provide a level playing field for the various manufacturers to develop and promote their products. Once a testing standard will be established, it will be easier for individual consumer and local authorities to integrate this energy efficient technology and to benefit from the savings generated. The combination of increased consumer confidence with the backing of a utility energy efficiency program to a new technology has been proven to increase market penetration as demonstrated by previous energy efficiency programs.

Note: The information provided above was obtained by the Standards Council of Canada (SCC) and is provided as part of a centralized, transparent notification system for new standards development. The system allows SCC-accredited Standards Development Organizations (SDOs), and members of the public, to be informed of new work in Canadian standards development, and allows SCC-accredited SDOs to identify and resolve potential duplication of standards and effort.

Individual SDOs are responsible for the content and accuracy of the information presented here. The text is presented in the language in which it was provided to SCC.