Weil-McLain ULTRA 230 - Manual (Page 35)

35
Part number 550-100-029/0810
GAS
-
FIRED WATER BOILER SERIES 1 & 2
— Control supplement & Service guide
Perform ALL of the ( 14 ) procedures listed in the following, in the ORDER SHOWN.
(You must have the correct maintenance kit to proceed. See page 33 for details.)
Order Procedure Description
5 Clean the burner. See s Figure 20, page 37 for burner access and assembly.
Remove the burner retaining hardware and remove burner from cover plate. s
Brush the exterior of the burner with a nylon-bristle brush (DO NOT use a wire brush). s
Use a vacuum cleaner or compressed air to clean the interior of the burner. When using compressed air, s
wear protective eye gear. Compressed air should only be used when cleaning the burner outdoors.
6 Replace combustion
chamber cover plate
insulation and gaskets. Reassemble the burner to the cover plate (see s Figure 20, page 37).
Replace cover plate insulation and gaskets on cover plate. s
Set aside until the heat exchanger has been cleaned as described below. s
7 Clean the heat exchanger
heating surface.
s
on the heating surfaces. Do not use any solvent.
If the vacuum cleaner is unable to clean completely,
s
wash the heating surfaces with clean, warm water.
If further cleaning is necessary, use the Heat ex-
s
changer cleaning tool (see illustration at right) or a
piece of 20-gauge or lighter sheet metal ¾” wide by
about 18 inches long to loosen deposits.
Slide the cleaning tool between the pins as shown,
s
from three directions. Continue until all sediment
on pins is removed.
After using the cleaning tool as shown, spray water
s
downward from above the pins to flush remaining
sediment.
Remove sediment from the bottom of the heat
s
exchanger.
Then disconnect the condensate line at the bottom
s
of the heat exchanger.
Loosen the hose clamps at both ends of the con-
s
densate line.
Remove the line and place a pan under the trap con-
s
nection.
Spray water into the bottom of the heat exchanger to flush remaining sediment to the condensate
s
outlet.
Spray water through the condensate line to clean it thoroughly.
s
Remove pan and re-install the condensate line. s
NOTE: Series 1, Ultra-155 or Ultra-230 only — Examine plug seals. If there is evidence of weeping, s
replace all plugs using Weil-McLain plug kit, part number 383-500-345.
8 Remove, clean and re-
install condensate trap. If not already removed in the previous step, disconnect the condensate line at the bottom of the heat s
exchanger.
Spray water through the condensate line to clean it thoroughly.
s
Fill with fresh water and re-install condensate line. s
Boiler maintenance procedure
(continued)
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