Bosch Singular 4000 Installation Instructions Manual page 41

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 3/4 in on the hot water outlet and 3/4 in at the pressure relief valve adapter?
Have you installed the pressure relief valve on the space heating and hot water outlet 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 fl oor?
Have you shown the owner how to clean the inlet water fi lter?
Have you given the Installation Manual and User's Manual to the owner for future reference?
Have you shown the owner how to shut off the gas in case of an emergency?
Have you installed a condensate drain line from the boiler to a drain or laundry tub?
Have you vented the boiler with 2/3 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 back towards the boiler at a rate of 1/4 in per foot (2° grade)?
Are all vent runs properly supported?
Have you properly supported the vent termination?
Have you properly sealed all air intake and exhaust joints, from the fl ue collar to the vent termination?
Have you installed end caps on the exhaust and intake pipes?
Have you checked the venting for leaks?
Is the vent termination at least 12 in (300mm) above the exterior grade or anticipated snow level?
Have you ensured that suffi cient make-up air is available?
Is the total vent length within the maximum vent length restriction?
Is the supplied voltage 110–120V AC?
Is the boiler plugged into a properly grounded outlet?
If you have made a direct power supply connection, have you installed a power switch to facilitate end-user maintenance?
Have you checked the polarity of the electrical connection?
Is the system properly set up for cascading operation (master and slave boiler), if applicable?
Table 16 Installation Checklist
Singular Combi Boiler - BTC 439003301 B (2021/07)
Connecting a Pressure Relief Valve
Operating the Boiler
Connecting the Condensate Drain
Venting the boiler
Connecting the Power Supply
Installation Instructions
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