1
Prepare boiler location (continued)
Flooring and foundation
Flooring
The Ultra boiler is approved for installation on combustible flooring, but must never be installed on carpeting.
Do not install boiler on carpeting even if foundation is used. Fire can result, causing severe personal injury, death or substantial property damage.
Foundation
Provide a solid foundation pad, at least 2 inches above the floor, if any of the following is true:
•floor can become flooded.
•the floor is dirt, sand, gravel or other loose material.
•the boiler mounting area is severely uneven or sloped.
The minimum foundation size is:
•
•
24 inches x 20 inches.Foundation may be of wood, brick or concrete (minimum 2 inches thick) construction.
If flooding is possible, elevate boiler sufficiently to prevent water from reaching boiler.
Ultra boiler in same space with other gas or
1.Follow the National Fuel Gas Code (U. S.) or CSA B149.1 and B149.2 (Canada) to size/verify size of the combustion/ventilation air openings into the space.
The space must be provided with combustion/ventilation air openings correctly sized for all other appliances located in the same space as the Ultra boiler.
Replace boiler jacket front door after servicing. The boiler front door must be securely fastened to the boiler to prevent boiler from drawing air from inside the boiler room. This is particularly important if the boiler is located in the same room as other appliances.
Failure to comply with the above warnings could result in severe personal injury, death or substantial property damage.
2.Size openings only on the basis of the other appliances in the space. No additional air opening free area is needed for the Ultra boiler because it takes its combustion air from outside (direct vent installation).
Residential garage installation
Precautions
Take the following special precautions when installing the boiler in a residential garage. If the boiler is located in a residential garage, per ANSI Z223.1, paragraph 5.1.9:
•Mount the boiler with a minimum of 18 inches above the floor of the garage to the bottom of the boiler to ensure the burner and ignition devices will be no less than 18 inches above the floor.
•Locate or protect the boiler so it cannot be damaged by a moving vehicle.
Provide air openings to room:
Ultra boiler alone in boiler room
1.No air ventilation openings into boiler room are needed when clearances around Ultra boiler are at least equal to the SERVICE clearances shown in Figure 1. For spaces that do NOT supply this clearance, provide two openings as shown in Figure 1. Each opening must provide 1 square inch free area per 1,000 Btuh of boiler input.
Vent and air piping
The Ultra boiler requires a special vent system, designed for pressurized venting. Ultra boilers are rated ANSI Z21.13 Category IV (pressurized vent, likely to condense in the vent).
You must also install air piping from outside to the boiler air intake adapter. The resultant installation is categorized as direct vent (sealed combustion). Note prevention of combustion air contamination on page 8 when considering vent/air termination.
Vent and air must terminate near one another and may be vented vertically through the roof or out a side wall. You may use any of the vent/air piping methods covered in the Ultra Boiler Vent Supplement, included in the envelope assembly. Do not attempt to install the Ultra boiler using any other means.
Be sure to locate the boiler such that the vent and air piping can be routed through the building and properly terminated. The vent/air piping lengths, routing and
Part number | 7 |
