4
INSTALLATION
GENERAL
The PB150 hot water steel boilers are high quality pellet/corn fired heating units. The
installation of the unit shall be in accordance with the regulations of the authorities
having jurisdiction.
FREIGHT CLAIMS
All units should be inspected for damage upon arrival. Concealed damage claims
should, be filed immediately against the carrier by the consignee. The carrier is
responsible for taking prompt action on all claims.
SIZING
A complete heat loss calculation of the structure is necessary to choose the proper
size unit to install. The boiler should be sized to within 25% of the actual calculated
heat loss of the structure. Over sizing will result in short cycling and inefficient
operation. The PB150 boilers have large water content allowing for ample domestic
hot water.
Replacement boiler should not be sized from the firing rate of the old boiler. A DOE
sponsored study indicates 65% of the heating units in U.S. homes are substantially
oversized.
BOILER LOCATION
Boiler to be installed on a non-combustible heat resistant surface in a liquid
containment pan attached to a drain in a level position with clearances in accordance
with NFPA 31 Table 4-1 Form IL
STANDARD CLEARANCES
Front
24” 610mm
Sides
6”
152mm
Rear
6”
152mm
Chimney Connector
18” 460mm
Reduced clearance installations shall comply with NFPA 31 Table 4-2
Appendix B.
To move the unit, push against the flue box or skids. Pushing or pulling the jacket or
burner will result in damage.
Be sure to level the unit by inserting shims under the base.
AIR FOR COMBUSTION AND VENTILATION
The unit must be installed where provision exists for combustion and ventilation air.
Ordinarily, provisions may be furnished by the following methods:
UTILITY ROOM
In buildings of tight construction, including most modern homes, you should provide
an opening, connecting to a well-ventilated attic, crawl space or directly with the
outdoors. The opening should have a minimum free area of 1 square inch per 1,000
BTU per hour of total input for all appliances in the enclosure and should terminate
below the burner level. Boilers installed in confined areas must have two ventilation
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