6
I. Pre-Installation
a. Front: 18"
b. Top: 36"
c. Draft hood, rear, sides and flue connector: 6"
2. USA, 808B-810B: for installation in room which is
large in comparison with size of boiler.
a. Front: 18"
b. Top: 51½"
c. Draft hood, rear, sides, and flue connector: 6"
3. Canada, 805B-810B:
a. Top and front: 18" (45.7cm)
b. Flue, rear and sides: 6" (15.2cm)
D. Provide clearance for servicing and proper operation
(following clearances are recommended and may be
reduced to minimum clearances shown above):
1. Single boiler, 805B-807B, Front/Top: 24" (61cm)
2. Single boiler, 808B-810B, Front/Top: 48" (122cm)
3. Multiple/modular boiler, USA/Canada, Sides:
1" (2.5cm)
E. Install boiler on level floor as close to chimney as
possible. For basement installation provide a solid base
such as concrete or masonry construction if floor is not
level or if water may be encountered on floor around
boiler.
F. Protect gas ignition system components from water
(dripping, spraying, rain, etc.) during boiler operation
and service (circulator replacement, control
replacement, etc.).
G. Provide combustion and ventilation air in
accordance with applicable provisions of local building
codes, or the National Fuel Gas Code, NFPA 54/ANSI
Z223.1, Section 5.3, Air for Combustion and
Ventilation; or CAN/CGA B149 Installation Codes,
Part 5, Venting Systems and Air Supply for
Appliances.
A. Inspect shipment carefully for any signs of damage.
All equipment is carefully manufactured, inspected and
packed. Our responsibility ceases upon delivery of
boiler to carrier in good condition. Any claim for
damage or shortage in shipment must be filed
immediately against carrier by consignee. No claims
for variances or shortages will be allowed by Boiler
Manufacturer, unless presented within sixty (60) days
after receipt of equipment.
B. Installation must conform to the requirements of the
authority having jurisdiction. In the absence of such
requirements, installation must conform to the
National Fuel Gas Code, NFPA 54/ANSI Z223.1 and/
or CAN/CGA B149 Installation Codes. Where
required by the authority having jurisdiction, the
installation must conform to the Standard for Controls
and Safety Devices for Automatically Fired Boilers,
ANSI/ASME No. CSD-1.
C. Provide clearance between combustible material
and boiler jacket (following clearances are minimums):
1. USA, 805B-807B: listed for Alcove installation
Table 2: Special Base Required for Installation on
Combustible Flooring
The following guideline is based on the National Fuel
Gas Code, NFPA 54/ANSI Z223.1.
1. Determine volume of space (boiler room). Rooms
communicating directly with space (through
permanent openings not furnished with doors) are
considered part of space.
Volume [ft³] = Length [ft] x Width [ft] x Height [ft]
2. Determine Total Input of all appliances in space.
Round result to nearest 1,000 Btu per hour (Btuh).
3. Determine type of space. Divide Volume by Total
Input.
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