5.3188.2 Adding Mass to Low Mass Boiler—Existing or New

Topic: 
Hydronic Heating (Hot Water and Steam)
Subtopic: 
Special Considerations
Desired Outcome: 
Minimized potential for short cycling, premature component failure, and increased operational efficiencies
TitleSpecification(s)Objective(s)
5.3188.2a
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

5.3188.2b
Application

Need for and size of buffer tank will be based on system design and boiler manufacturer specifications

When the smallest heating/hot water load is less than the minimum firing rate, a buffer tank will be added

Reduce short cycling

5.3188.2c
Insulation

Buffer tank will be insulated to a minimum R-12

Minimize tank heat loss

5.3188.2d
Location

Connection points to the piping system will be verified in accordance with work order and site conditions

Ensure the proper operation

5.3188.2e
Install buffer tank

Nearest valves on either side of buffer tank location will be closed

Buffer tank will be installed in accordance with manufacturer specifications

Buffer tank will be installed on a level concrete pad to minimize corrosion at the bottom

Valves will be opened and system will be refilled and air will be eliminated

Eliminate water supply to buffer tank location

Properly install buffer tank

5.3188.2f
Insulate buffer tank area

Buffer tank and associated piping will be insulated 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

5.3188.2g
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