5.3102.4 Hot Water Operating Controls—Aquastat (Hot Water)

Topic: 
Hydronic Heating (Hot Water and Steam)
Subtopic: 
Equipment Installation
Desired Outcome: 
Optimize boiler efficiency and prevent of short cycling
TitleSpecification(s)Objective(s)
5.3102.4a
Assessment

Controls specified for replacement will be confirmed

Existing controls to be retained will be confirmed as installed correctly

Current settings will be documented

Document status of existing controls

5.3102.4b
Repair

Existing installation will be corrected if settings do not match specified scope of work

Ensure boiler operates at optimal water temperatures

Reduce short cycling

5.3102.4c
Replacement of aquastat

Existing controls will be removed

New control will be visible and installed in an accessible location for adjustments in accordance with manufacturer specifications

New control will be set to temperature settings stated on scope of work

Ensure boiler operates at optimal water temperatures

Reduce short cycling

5.3102.4d
Testing

Temperature and pressure gauges will be checked for accuracy

Contractor will observe and confirm boiler operation over a minimum of three cycles

Safety control will be tested to ensure the burner shuts off at high limit

Ensure proper installation

Ensure proper and safe operation

5.3102.4e
Education

Property manager will be educated on the operation and purpose of controls and settings

Ensure proper use of controls

Maintain optimal temperature settings