Crown Boiler AWR Series Instructions For Field Conversion page 2

In addition to these instructions, this kit consists of the following items which are factory configured for the fuel to which
the boiler is being converted:
1) Gas Valve
2) Pilot Assembly
3) Main Burner Orifice
4) Fuel Conversion Label
5) A copy of the installation manual for the boiler being converted
In addition, some conversion kits also include a main burner with a pilot bracket. This burner is provided when the new
pilot assembly is mounted at a different angle than the original pilot. Refer to the "Parts" section of the enclosed boiler instal-
lation manual for an illustrated list of all burner and gas train components.
A complete list of the specific parts in each kit is shown in Table 1.
Some intermittent ignition-equipped natural gas boilers manufactured before 2005 were sup-
plied with a Honeywell S8600F ignition module. This module is not suitable for use with LP
gas. If the boiler being converted to LP gas is equipped with a Honeywell S8600F, this mod-
ule must be replaced. Consult Crown Technical Support for the appropriate replacement.
The gas supply shall be shut off prior to disconnecting the electrical power, before proceed-
ing with the conversion.
Orifice sizes shown in Tables 1c and 1d are for use at the altitudes indicated in these tables.
Consult the factory for the correct orifice size if the boiler is to be installed at a different
altitude.
Conversion procedure:
1) Turn off all electrical power to the appliance.
2) Turn off the gas supply upstream of the boiler.
3) Remove the gas valve, main burners, main burner orifice, and pilot assembly originally provided with the boiler. On CWD
series boilers, removal of the burners, orifice, and pilot assembly is most easily done by first removing the entire burner tray
from the boiler. To remove the CWD burner tray:
a) Disconnect the gas supply line from the gas valve
b) Unplug the electrical connections at the gas valve and the ignition cable from the ignition module.
c) Remove the Intake Cover (key #39 in the installation manual parts list).
d) Remove the three 10-32 screws holding the Manifold Gasket Plate (key #58) in place. Remove the four 5/16-18 nuts and
washers securing the burner tray in place (keys 8, 9).
e) Remove the burner tray from the boiler.
4) Install the new main burner orifices in the manifold. Before doing so, verify that the marking on each orifice matches that
specified for the kit in Table 1. This marking is stamped on either a wrench flat or the side of the orifice in front of the wrench
flats.
WARNING
CAUTION
CAUTION
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