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Connecting a Pressure Relief Valve
Have you installed an approved pressure relief valve on the boiler?
Does the rating of the pressure relief valve match or exceed the maximum BTU rating of the
boiler?
Is the pressure relief valve
Have you installed the pressure relief valve on the space heating supply pipe near the boiler?
Have you installed a discharge drain tube from the pressure relief valve to within 6-12 in
(150-300 mm) of the floor?
Connecting the Condensate Drain
Have you installed a condensate drain line from the boiler to a drain or laundry tub?
Venting the boiler
Have you vented the boiler with 2 in or 3 in PVC, CPVC, polypropylene, Type BH Special Gas
Vent (ULC-S636) for Category IV boilers (Canada), or in accordance with all local codes and the
guidelines in this manual?
Have you ensured that ABS or PVC cellular core pipe has not been used as venting for the
boiler?
Is the vent sloped upward toward the vent termination at a rate of
Are all vent runs properly supported?
Is the vent termination properly supported?
Are the air intake and exhaust connections on the flue and vent lines correctly sealed?
Have you installed termination screen caps on the exhaust and intake pipes?
Have you checked the venting for leaks?
Is the vent termination at least 12 in (300 mm) above the exterior grade?
Have you ensured that sufficient make-up air is available?
Is the total vent length within the maximum vent length restriction?
/
in on the space heating outlet?
3
4
/
in per foot (2% grade)?
1
4
Installation Checklist
Yes
No
Yes
No
Yes
No
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