ULTRA S4 GAS BOILER UG-299 User Manual

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Part number 550-100-400/0119

Series 4

gas-fired water boiler — Boiler Manual

DIRECT EXHAUST

Figure 25฀฀DIRECT EXHAUST฀฀฀฀฀฀฀฀฀

DIRECT EXHAUST

Sidewall termination

DIRECT EXHAUST

Vertical termination

฀฀



฀฀

฀฀฀฀

฀฀



฀฀

฀฀฀฀

฀

฀





Step 1 Install the boiler.

Step 2 Determine the proper location for roof or wall penetration for each termination.

฀Prepare roof penetrations before installing vent piping.

฀Finish by attaching external pipe and ﬁ ttings as shown in the termination instructions.

฀Vertical terminations only — Install terminations as described in this addendum.

฀Support vertical runs on the outside of the building with brackets as shown in the termination

instructions.

Step 3 Install vent piping from boiler to termination.

฀Install a hanger support within 6 inches of any upturn in the piping.

฀Slope horizontal piping downward toward the boiler at least 1/4 inch per foot.

Step 4 Connect the vent piping at the boiler per manual instructions.

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Weil-McLain ULTRA S4 GAS BOILER UG-299 Ultra S4 Gas Boiler Ug80 Ultra S4 Residential Gas Water Boiler