SW VENTING ADDENDUM OIL FIRED DIRECT EXHAUST CAST IRON BOILER Utica Boilers, Inc. P.O.
Installation of Exhaust & Vent Piping (Perform prior to any plumbing or electrical work) 1. Locate vent termination kit on outside of building and install in accordance with figure 3 on page 3. (make sure air inlet on termination piece is free of restriction). 2. Align the boiler with the termination kit. 3. Install vent adapters, (Note: The termination kit comes with 2 adapters, one for each end of the vent pipe. One of the adapters has a 5/16" bolt installed.) A.
HORIZONTAL VENT PIPING TYPICAL INSTALLATION Notes: 1 : It is recommended to install termination kit and vent pipe to boiler first before installing supply & return piping. If not installed first, installation of vent pipe will be difficult. * 2 : Insert vent pipe in boiler vent outlet, apply silicone completely around edge of outlet and tighten clamp. See figure 5 on page 4. ** 3: Maximum vent length: Minimum vent length: 10 feet. 24 inches (2 feet).
FIGURE 3 PAGE 3
FIGURE 4 FIGURE 5 CA UTION: CAUTION: KEEP AREA AROUND THE VENT TERMINAL FREE OF SNOW, ICE, AND DEBRIS.
VENTILATION & COMBUSTION AIR WARNING: AIR OPENINGS TO COMBUSTION AREA MUST NOT BE OBSTRUCTED. BY FOLLOWING THE INSTRUCTIONS BELOW, ADEQUATE COMBUSTION AIR CAN BE MAINTAINED COMBUSTION AIR REQUIREMENTS (Minimum Opening Requirements) *UNCONFINED AREA Outside Inside BTU/HR INPUT Combustion Air 1 IN.2 /5000 BTU/HR (Paragraph 4) 91,000 19 140,000 28 Combustion Air 1 IN.2 /1000 BTU/HR (See Fig 1) (MIN. 100 IN2) **CONFINED AREA Outside Combustion Air VERT. DUCTS 1 IN.
and shall have the same cross-sectional area of the openings to which they are connected. 4. When air for combustion and ventilation is from inside buildings, the confined space shall be provided with two permanent openings, one starting 12 inches from the top and one 12 inches from the bottom of the enclosed space.
B. One permanent opening, commencing within 12 inches of the top of the enclosure, shall be permitted where the equipment has clearances of at least 1 inch from the sides, 1 inch from the back, and 6 inches from the front of the boiler. The opening shall directly communicate with the outdoors or shall communicate through a vertical or horizontal duct to the outdoors or spaces (crawl or attic) that freely communicate with the outdoors.
