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GB300 BOILER INSTALLATION AND OPERATION INSTRUCTIONS
Ceramic Blanket Installation
Before installing the cast iron sections a ceramic blanket
gasket must be installed on the burner base. Locate the
roll of ceramic blanket and can of spray adhesive supplied
in the X1 box. Spray two heavy coats of adhesive on the
top of the burner base waiting for the adhesive to tack
up between coats, Figure 23.
Figure 23
Ceramic Blanket Adhesive Application
When the second coat of adhesive is tacky place a
strip of ceramic blanket along each side of the base,
Figure 24.
Figure 24
Lay strips of ceramic blanket along the front and back of
the base making sure to overlap the ends as shown in
Figure 25.
WARNING: The ceramic blanket must be
overlapped as shown in Figure 25 to prevent the
escape of flue gases. Failure to properly seal the
cast iron sections to the boiler base can result
in excessive levels of carbon monoxide which
can result in severe personal injury or death!
Ceramic Blanket Placement
Figure 25
Cast Iron Section Assembly
WARNING: Never stand the cast iron sections up
without adequate support. They may fall over
resulting in property damage or severe personal
injury!
Clean and inspect each section before assembly. Use a
wire brush and a clean rag to remove rust and debris
from the rope seal grooves and seal ports.
CAUTION: Never use any petroleum-based cleaners
to clean the cast iron sections. Residue from the
cleaner will result in the failure of the hydronic seals!
Using a tape measure, mark the midpoint of the burner
base on the front and rear panels, Figures 26A and
26B.
Figure 26A
Marking Burner Base Front Midpoint
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Ceramic Blanket Placement
Page 17
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