Crown Boiler FWZ Series, Installation Instructions Manual

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8
IV Field Assembly
This boiler is shipped in two pieces:
a) The crated boiler itself with the following loose parts either packed in the combustion chamber or glued to the skid:
• Barometric Draft Regulator (if supplied)
• Circulator (if supplied)
• Relief valve
• Pipe Fittings
b) The burner carton consisting of the following items:
• Oil Burner assembly
• Baffles in some cases (see Table 4.1)
• Refractory blanket in some cases (see Table 4.1)
It is recommended that the boiler be moved to its final location before the items in the burner carton are installed. To complete
field assembly:
WARNING
Installation of burners on the FWZ other than those provided by Crown, and marked for use
with this boiler, may result in unreliable operation, property damage, personal injury, or loss of
life.
1) Make sure that the burner carton supplied is the correct one for the boiler. The crate tag on the boiler lists the Crown part
numbers for the burner cartons that may be used with it.
2) Remove the burner mounting bolts and washers from the front door. Make sure that the burner gasket is in place and undam -
aged and mount the burner to the door.
3) Plug the burner cord into the receptacle on the lower right front corner of the boiler as shown in Figure 4.0
4) Install the barometric draft regulator, and other piping/trim, as described in the Venting and Piping sections of this manual.
5) Different baffle arrangements are used based on the boiler size and choice of burner. In some cases these baf
-
fles are included in the boiler and in other cases they are provided in the burner carton. In addition, some mod -
els use a refractory blanket which is shipped in the burner carton and which must be installed in the combustion
chamber. Finally, in some cases burners are supplied with insulation wrapped around the inserted burner tube.
Table 4.3 summarizes the use of baffles, blankets, and burner tube insulation.
6) Attach the model-specific rating plate for the specific boiler model that is provided in the burner box to the left of the
permanent rating plate already on the boiler (Figure 4.0). Note that some burner boxes may contain rating plates for both
water and steam models; be sure to select the appropriate FWZ series rating plate. Before applying the rating plate clean the
area where it is to be applied with a clean, dry lint free cloth.
CAUTION
Fuel oil used with this boiler must conform to ASTM D396. The ASTM D396 standard sets a
5% limit on biodiesel concentration, requires that the biodiesel feedstock comply with ASTM
D6751, and also specifies the procedure that must be used to blend the biodiesel feedstock
with the #2 fuel oil. Attempts to use biodiesel blends not meeting all ASTM D396 requirements
may result in unreliable operation or severe property damage.