
•
EXEMPTIONS to the requirements listed above:
°
The above requirements do not apply if the
exhaust vent termination is seven (7) feet or
more above finished grade in the area of the
venting, including but not limited to decks and
porches.
°
The above requirements do not apply to a
boiler installed in a room or structure separate
from the dwelling, building or structure used in
whole or in part for residential purposes.
·
This boiler installation manual shall remain with
the boiler at the completion of the installation.
See the latest edition of Massachusetts Code 248 CMR
for complete verbiage and also for additional (non-vent
related) requirements (248 CMR is available online).
If your installation is NOT in Massachusetts, please
see your authority of jurisdiction for requirements that
may be in effect in your area. In the absence of such
requirements, follow the
National Fuel Gas Code
,
ANSI Z223.1/NFPA 54 and/or CAN/CSA B149.1,
Natural Gas and Propane Installation Code
.
C. ACCESSIBILITY CLEARANCES
1. The Series PBC™ boiler is certified for closet
installations with zero clearance to combustible
construction. In addition, it is design certified for use
on combustible floors. Do not install on carpeting.
2. Figure 1.1 shows the minimum recommended
clearances to allow reasonable access to the boiler for
Models PBC-34™, PBC-40™ and PBC-52™.
However, Local codes or special conditions may
require greater clearances.
D. COMBUSTION AND VENTILATION AIR
1. The Series PBC™ boiler is designed for operation with
combustion air piped directly to the boiler from
outside the building (sealed combustion). Combustion
air may be supplied from within the building only if
adequate combustion air and ventilation air is
provided in accordance with the National Fuel Gas
Code or applicable sections of the local building code.
Subsections 3 through 10 as follows are based on the
National Fuel Gas Code requirements.
2. If the combustion air is piped directly to the boiler
from outside the building, no additional combustion
or ventilation air is required. Otherwise, follow the
National Fuel Gas Code recommendations
summarized in subsections 3 through 10.
3.
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.
PREINSTALLATION
Figure 1.1: Minimum Accessibility Clearances – PBC-34™, PBC-40™, and PBC-52™
3
DANGER
DO NOT INSTALL ON CARPETING.
Содержание PBC-34
Страница 1: ...PBC Gas Boilers PBC 34 PBC 40 PBC 52 Combination Installation Operation Maintenance Manual Series...
Страница 22: ...20 WATER PIPING AND CONTROLS Figure 4 6 Recommended Central Heat Piping...
Страница 23: ...21 Figure 4 7 Recommended Domestic Hot Water Piping WATER PIPING AND CONTROLS...
Страница 31: ...29 Figure 7 2 Wiring Schematic and Connection ELECTRICAL CONNECTIONS...
Страница 45: ...E LIGHTING OPERATING PROCEDURES 43 START UP PROCEDURE...
Страница 57: ...THIS PAGE INTENTIONALLY LEFT BLANK...
Страница 60: ...58 REPAIR PARTS Figure 13 2 PBC 34 Combustion Components...
Страница 62: ...60 REPAIR PARTS Figure 13 3 PBC 40 and PBC 52 Combustion Components...