Installation Guide

23
A. General. Inspection and service should be conducted
annually. Turn off electrical power and gas supply
while conducting service or maintenance. Follow
instructions TO TURN OFF GAS TO APPLIANCE.
See Figure 14.
CAUTION
Label all wires prior to disconnection when
servicing controls. Wiring errors can cause
improper and dangerous operation. Verify proper
operation after servicing.
B. Inspect Vent System.
1. Remove obstructions in vent pipe and chimney.
2. Remove soot accumulations with wire brush and
vacuum.
3. Repair or replace deteriorated vent pipe and vent
accessories.
4. Provide proper support. Repair sags, particularly in
horizontal sections.
5. Repair leaking joints.
C. Inspect Boiler Flue Passages for blockage or soot
accumulation.
1. Remove vent pipe, vent damper and blocked vent
switch.
2. Remove sheet metal screws securing Jacket Top
Panel. Remove Top Panel.
3. Remove screws securing Canopy to Section
Assembly. Remove Canopy.
4. Using ashlight, examine all ue passageways.
a. If passageways are free of soot and obstruction,
replace canopy, secure and seal.
b. If passageways need cleaning, remove burners
as described in Paragraph D. Using long handle
wire or bristle ue brush and vacuum, brush
ueways thoroughly from top of boiler.
5. Install new gasket material (See Section XI: Repair
Parts). Install canopy.
6. Install Jacket Top Panel, Blocked Vent Switch, Vent
Damper, and vent pipe.
D. Clean Main Burners and Firebox.
1. To remove burners for cleaning, changing orices,
or repairs:
a. Remove Jacket Front Panel.
b. Disconnect pilot tubing at gas valve.
c. Disconnect 3-wire plug at the gas valve.
d. Remove wires to ame roll-out switch.
e. Remove the burner access panel.
f. Mark the location of the pilot main burner on the
manifold if the marking on manifold is missing
or obliterated.
g. Hold burner at throat. Lift front of burner to
clear orice. Burner which holds pilot can only
be removed by lifting the burner adjacent to its
right rst.
2. Brush top of burners with a soft bristle brush.
Vacuum burners.
3. Check orices. Drilled passageways must be free of
lint or dirt.
4. Vacuum tip of Pilot Burner.
5. Clean rebox by vacuuming. Exercise care not to
damage base insulation.
6. Install burners by reversing procedure used to
remove burners. Make sure burner with pilot
assembly is in same location as original installation.
Check burners to see that they are located properly
in slot at rear of burner tray. Reinstall burner access
panel. Reconnect ame roll-out switch wires, pilot
gas supply, thermocouple lead or pilot lead.
7. Connect pilot gas supply, igniter/sensor wire, and
ground wire at Boiler Control.
8. Install Burner Access Panel. Connect Flame Rollout
Switch wires.
E. Check Operation. Follow steps C through J from
Section VII: System Start-up and Checkout.
F. Lubrication. There are no parts requiring lubrication
by service technician or owner. Circulator bearings are
water lubricated.
WARNING
Service on this boiler should be undertaken only by trained and skilled personnel from a qualied
service agency. Inspections should be performed at intervals specied in this manual. Maintain
manual in a legible condition.
Keep boiler area clear and free of combustible materials, gasoline and other ammable vapors and
liquids.
Do not place any obstructions in boiler room that will hinder ow of combustion and ventilation air.