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G. FOUNDATION REQUIREMENTS
Boiler must be placed on level surface. Boiler is NOT to be installed on carpeting.
NOTE: 1. If boiler is not level condensate drain lines will not function properly. Adjustable feet
are located on the boiler to make up for minor surface irregularities or tilt.
2. Wood frame or blocks may be used to raise boiler to maintain drain pitch or to be
above external condensate pump reservoir.
H. REMOVAL OF EXISTING BOILER FROM COMMON VENT SYSTEM
When an existing boiler is removed from a common venting system, the common venting system
is likely to be too large for proper venting of the appliances remaining connected to it. At the time
of removal of an existing boiler, the following steps shall be followed with each appliance
remaining connected to the common venting system placed in operation, while the other appliances
remaining connected to the common venting system are not in operation.
1. Seal any unused openings in the common venting system.
2. Visually inspect the venting system for proper size and horizontal pitch and determine there is
no blockage or restrictions, leakage, corrosion and other deficiencies which could cause an
unsafe condition.
3. Insofar as is practical, close all building doors and windows and all doors between the space
in which the appliances remaining connected to the common venting system are located and
other spaces of the building. Turn on clothes dryer and any appliance not connected to the
common venting system. Turn on any exhaust fans, such as range hoods and bathroom
exhaust, so they will operate at maximum speed. Do not operate a summer exhaust fan. Close
fire dampers.
4. Place in operation the appliance being inspected. Follow the lighting instructions. Adjust
thermostat so appliances will operate continuously.
5. Test for spillage at the draft hood relief opening after 5 minutes of main burner operation. Use
the flame of a match or candle, or the smoke from a cigarette, cigar or pipe.
6. After it has been determined that each appliance remaining connected to the common venting
system properly vents when tested as outlined above, return doors, windows, exhaust fans and
any other gas-burning appliance to their previous condition of use.
7. Any improper operation of the common venting system should be corrected so the installation
conforms with the National Fuel Code, NFPA-54/ANSI -Z223. l-latest revision, or section 5
of CAN/CGA-B149 for Canadian standards. When resizing any portion of the common
venting system, the common venting system should be resized to approach the minimum size
as determined using the appropriate tables in part I 1 in the National Fuel Gas Code, NFPA-
54/ANSI- Z223. l-latest revision, or section 5 of CAN/CGA-B149 for Canadian standards.
PLACING THE BOILER
The boiler should be placed to provide the most direct connections to the combustion air, vent and
system piping as possible.
Place crated boiler as close to selected location as possible and uncrate boiler. The uncrated boiler
may be moved into position with an appliance dolly or 2-wheel hand truck. The dolly or hand truck
should be inserted under the left hand side of the boiler. It is possible to slide the boiler for a short
distance on a smooth floor or surface.
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