2
The equipment must be installed in accordance with installation requirements of the authority having
jurisdiction or, in the absence of such requirements, to the current edition of the
National Fuel Gas Code
, ANSI
Z223.1/NFPA 54 or CAN/CGA B149 Installation Codes.
Where required by the authority having jurisdiction, the installation must conform to
American Society of
Mechanical Engineers Safety Code for Controls and Safety Devices for Automatically Fired Boilers,
ASME CSD-1.
NOTICE
A. ACCESSIBILITY CLEARANCES
Install boiler with not less than 24" (610 mm) between
the top and front of the boiler and adjacent wall or other
appliance, when access is required for servicing.
B. CLEARANCE FROM COMBUSTIBLE
CONSTRUCTION
The design of this boiler is certified for alcove installation
with the following clearances from combustible
construction:
1. Sides: 6" (152 mm)
2. Top of Jacket: 36" (914 mm)
3. Draft Hood: 6" (152 mm)
4. Vent Pipe: 6" (152 mm )[1" (25 mm) for Type B vent]
5. Rear of Jacket: 6" (152 mm)
6. Hot Water Pipes: 1" (25 mm)
7. If it is necessary to build a non-combustible floor pad
over top of an existing combustible floor, construct
pad as stated in the current edition of National Fuel
Gas Code Handbook under “Installation of Specific
Equipment”, or CAN/CGA B149 Installation Codes
under “General”.
C. COMBUSTION AND VENTILATION AIR
1. Provide adequate facilities for combustion and
ventilation air in accordance with current edition of
National Fuel Gas Code under “Air for Combustion
and Ventilation”, or applicable provisions of the local
building code, or CAN/CGA B149 Installation
Codes. Subsections 2 through 8 below are based on
National Fuel Gas Code requirements.
2. Required Combustion Air Volume: The total required
volume of indoor air is to be the sum of the required
volumes for all appliances located within the space.
Rooms communicating directly with the space in
which the appliances are installed and through
combustion air openings sized as indicated in
Subsection 3 are considered part of the required
volume. The required volume of indoor air is to be
determined by one of two methods.
a. Standard Method: The minimum required
volume of indoor air (room volume) shall be 50
cubic feet per 1000 BTU/Hr (4.8 m3/kW). This
method is to be used if the air infiltration rate is
unknown or if the rate of air infiltration is known
to be greater than 0.6 air changes per hour. As
an option, this method may be used if the air
infiltration rate is known to be between 0.6 and
0.4 air changes per hour. If the air infiltration rate
is known to be below 0.4 then the Known Air
Infiltration Rate Method must be used. If the
building in which this appliance is to be installed
is unusually tight, PB Heat recommends that the
air infiltration rate be determined.
b. Known Air Infiltration Rate Method: Where
the air infiltration rate of a structure is known,
the minimum required volume of indoor air for
appliances other than fan assisted and for the
Series GM Boiler shall be determined as follows:
PREINSTALLATION
1. PREINSTALLATION
Carefully read these instructions before beginning work. Understand all aspects of the installation. Contact your PB Heat sales
representative or customer service for help in answering questions.
This boiler must be installed by a qualified contractor. The boiler warranty can be voided if the boiler is not installed, maintained
and serviced correctly.
Do not install this boiler on combustible flooring.
Boiler installation on combustible flooring is a fire
hazard.
WARNING
Do not install boiler on carpeting. Boiler installation
on carpeting is a fire hazard.
WARNING
21 ft3Iother
ACH 1000Btu/hr
Required Volumeother =⎛
⎜
⎝
⎛
⎜
⎝
