5.3104.13 Leak Detection and Repair—Direct Vent Boiler Exhaust

Topic:

Hydronic Heating (Hot Water and Steam)

Subtopic:

Equipment Maintenance, Testing, and Repair

Desired Outcome:

Direct vent boiler exhaust system does not leak

Multifamily Homes

	Title	Specification(s)	Objective(s)
	5.3104.13a 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
	5.3104.13b Identify leak location	Exhaust leaks will be located through visual inspection of exhaust system (signs of leak may include dripping water, misaligned joints, evidence of air movement, discoloration of adjoining surfaces) If visual inspection does not reveal exhaust leak, leak will be located through instrumented inspection with use of properly calibrated combustion gas detector or smoke test of exhaust system	Determine leak location
	5.3104.13c Turn off combustion system	Combustion system will be turned off to stop exhaust vent system leak	Eliminate exhaust release
	5.3104.13d Repair leak	Piping, fitting, or device will be repaired or replaced	Ensure exhaust system does not leak
	5.3104.13e Restart combustion system	Combustion system will be restarted and integrity of repair assessed with a properly calibrated combustion gas detector	Confirm system is safe for operation
	5.3104.13f 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