5.3103.9 Installation of Strainers

Topic: 
Hydronic Heating (Hot Water and Steam)
Subtopic: 
Piping (Distribution Installation)
Desired Outcome: 
Critical mechanical equipment protected from sediment, debris, and foreign objects within the system
For supporting material, see Referenced Standards.
TitleSpecification(s)Objective(s)
5.3103.9a
Check for presence of asbestos-containing materials (ACMs)

Potential ACMs will be handled in accordance with SWS 2.0110.2 Potential Asbestos-Containing Materials

Ensure a safe work environment

5.3103.9b
Isolate strainer location

Nearest valves on either side of strainer location will be closed

Eliminate water supply to the strainer location

5.3103.9c
Install strainer

Strainer will be installed in accordance with manufacturer specifications; locations may include the inlet side of pumps, heat exchangers, coils, and boilers

Strainer orientation will allow sufficient clearance for filter/strainer basket removal

System will be refilled and air will be eliminated

Prevent sediment, debris, and foreign object entry into pumps, heat exchangers, coils, or boilers

5.3103.9d
Remove temporary strainer screen

Temporary strainer screen will be removed and inspected during initial system startup

Temporary strainer screen will be cleaned, reinstalled, and periodically monitored until screen is shown to be free of debris; after which, temporary screen will be removed

Ensure strainer is free of startup debris

5.3103.9e
Reinsulate area

Where insulation was removed, strainer will be reinsulated with removable insulation to IECC IECC International Energy Conservation Code and ASHRAE ASHRAE American Society of Heating, Refrigerating and Air-Conditioning Engineers, www.ashrae.org 90.1, at a minimum

Reduce energy loss

Maintain safe surface temperature

5.3103.9f
Education

Completed work will be reviewed with the building/property management team and operations staff

Building/property management team and operations staff will be educated on the safe and efficient operation and maintenance requirements of the installed item

Ensure building/property management team and operations staff is informed of the safe, efficient operation and maintenance requirements of the installed item