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RAYPAK TUBE CLEANING KIT
Extension Pieces (5) Auger with Carbide Tip Wire Brush
P/N 052871F - 5/8 DIA.
P/N 052870F - 7/8 DIA.
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Establish a regular inspection schedule, the frequency
depending on the local water condition and severity of
service. Do not let the tubes clog up solidly. Clean out
deposits over 1/16" in thickness.
The boiler may be cleaned from the side opposite the
water connections as shown, without breaking pipe
connections. It is preferable, however, to remove both
headers for better visibility through the tubes and to be
sure the residue does not get into the system.
Note that you do not remove the top pan or the heat
exchanger generally. After reaming with the auger,
mount the wire brush and clean out the debris remain-
ing in the tubes. Another method is to remove the heat
exchanger, ream tubes and immerse heat exchanger
in noninhibited de-scale solvent.
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1. Shut-off power and gas supply to the boiler.
Disconnect union(s) and pilot tubing, then loosen
and remove burner hold-down screws.
2. Disconnect wires at gas valve and slide burner
tray out.
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1. Shut-off gas supply to the boiler. Remove gas pip-
ing to gas valve inlet.
2. Disconnect wires, pilot tubing and bleed line, if
required.
3. Turn vertical gas pipe from manifold slightly and
unscrew gas valve.
4. Reverse above procedure to re-install.
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1. Remove screws and burner hold-down bracket.
Fig. 51: Raypak Tube Cleaning Kit
COMBINATION FLAME SENSOR/
IGNITER AND PILOT BURNER
Fig. 52: Typical Burner Tray Illustrated