5.3103.2 Air Elimination (Hot Water)

Topic: 
Hydronic Heating (Hot Water and Steam)
Subtopic: 
Piping (Distribution Installation)
Desired Outcome: 
No air in water distribution system
TitleSpecification(s)Objective(s)
5.3103.2a
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
5.3103.2b
Locate air separators and automatic air vents

Location of air separators and air vents will be determined

Determine location of mechanical room air vents and system high point air vents
5.3103.2c
Isolate and replace faulty automatic air vents

Nearest valves on either side of air vent location will be closed

Air vents will be replaced

New air vents will be considered for locations such as inverted Us and at the top of risers

System will be refilled and air will be eliminated

Eliminate water supply to air vent location

Vent air from system
5.3103.2d
Isolate and install air separator

Nearest valves on either side of air separator location will be closed

Air separator will be installed at optimal system location in accordance with manufacturer specifications

System will be refilled and air will be eliminated

Eliminate water supply to air separator location

Vent air from system
5.3103.2e
Reinsulate area

Where insulation was removed, valve will be reinsulated with new insulation to IECC IECC International Energy Conservation Code 2012 and ASHRAE ASHRAE American Society of Heating, Refrigerating and Air-Conditioning Engineers, www.ashrae.org 90.1-2010, at a minimum

Reduce energy loss

Maintain safe surface temperature
5.3103.2f
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