5.3102.14 Expansion Tank Installation (Hot Water)

Topic: 
Hydronic Heating (Hot Water and Steam)
Subtopic: 
Equipment Installation
Desired Outcome: 
Accommodate the expansion and contraction of the system fluid
TitleSpecification(s)Objective(s)
5.3102.14a
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
5.3102.14b
Size tank

Location of expansion tank and operational characteristics (system volume, operating temperature range, operating pressure range, and fluid type) will be used to determine size of tank

Select an appropriately sized tank
5.3102.14c
Isolate installation location

Nearest valves on either side of installation location will be closed

Eliminate water supply to the installation location
5.3102.14d
Install tank

Tank will be connected to existing system piping in accordance with manufacturer specifications

Properly install expansion tank
5.3102.14e
Pressurize tank

Expansion tank will be pressurized in accordance with manufacturer specifications to the appropriate system operating pressure

System will be filled and air will be eliminated

Pressurize the tank to the standard operating pressure
5.3102.14f
Reinsulate area

Where insulation was removed, piping will be reinsulated with new 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
5.3102.14g
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