VI. Venting
A.Install vent system in accordance with local building codes; or local authority having jurisdiction; or National Fuel Gas Code, ANSI Z223.1/NFPA 54, Part 7, Venting of Equipment and/or CAN/CSA B149.1, Venting Systems and Air Supply for Appliances. Install any of the following for this Series 8H Category I, draft hood equipped appliance:
1.Type B or Type L gas vent. Install in accordance with listing and manufacturer’s instructions.
2.Masonry or metal chimney. Build and install in accordance with local building codes; or local authority having jurisdiction; or Standard for Chimneys, Fireplaces, Vents, and Solid Fuel Burning Appliances, ANSI/NFPA 211 and/or National Building Code of Canada.
Masonry chimney must be lined with approved clay flue lining or listed chimney lining system except as provided in ANSI Z223.1/NFPA 54, Paragraph 7.5.4(a): Exception: Where permitted by the authority having jurisdiction, existing chimneys shall be permitted to have their use continued when an appliance is replaced by an appliance of similar type, input rating, and efficiency.
3.Single wall metal vent. Allowed by ANSI Z223.1/ NFPA 54 under very restrictive conditions.
B.Inspect chimney and remove any obstructions or restrictions. Clean chimney if previously used for solid or liquid
DANGER
Inspect existing chimney before installing boiler. Failure to clean or replace perforated pipe or tile lining will cause severe injury or death.
C.Install Draft Hood on canopy outlet. Maintain height from Jacket Top Panel to Draft Hood skirt as shown in Figure 1. DO NOT ALTER, CUT, OR MODIFY DRAFT HOOD.
WARNING
Do not alter boiler draft hood or place any obstruction or
D.Install Blocked Vent Switch. The Blocked Vent Switch Assembly consists of a strain relief bushing, power cord, and switch attached to mounting bracket. On Packaged boilers, the assembly is shipped attached to top of boiler. On Knocked Down boilers, the assembly is located in Combination Boiler Parts and Control Carton.
1.Uncoil power cord.
2.Position mounting bracket onto lower edge of Draft Hood skirt. Locate center tooth (with #10 sheet metal screw) on outside and other two teeth inside Draft Hood skirt. See Figure 25.
3.Slide mounting bracket tight against lower edge of Draft Hood skirt. Position #10 sheet metal screw above skirt’s stiffening rib.
4.Secure bracket in position by tightening #10 sheet metal screw against outer surface of Draft Hood skirt.
5.Insert excess power cord through Jacket Right Side Panel hole. Remove slack.
6.Position strain relief bushing around power cord. Pinch bushing’s two halves together and snap back into hole in Jacket Right Side Panel.
7.Verify power cord, mounting bracket, and Blocked Vent Switch are secure and located as shown in Figure 25.
WARNING
Do not operate boiler without Blocked Vent Switch Properly installed.
Figure 25: Blocked Vent Switch Installation
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