Operating instructions

70
Remove all obstrutions. Replace all deteriorated parts
and support properly. Seal all joints.
E. Clean Boiler Flueways.
1. Shut down gas boiler in accordance with lighting/
operating instructions attached to inside of Front
Removable Door. See Figure 50.
2. Remove Burner Access Panel and Burners. See
Paragraph F. Clean Burners if necessary.
3. Remove Jacket Top Panels.
4. Remove Canopy from top of boiler.
5. Thoroughly clean the flueways with flue brush. See
Figure 64.
6. Clean boiler heating surface accessible from
combustion chamber with straight handle wire
brush. Reinstall burners and connect gas train. See
Paragraphs F & G.
7. Place boiler in operation in accordance with Lighting
or Operating instructions. Test gas line for leaks in
accordance with Section VI: Gas Piping, Paragraph
C.
8. Replace Jacket Front Removable Door.
Check float for evidence of collapse. Check
mercury bulb (where applicable) for mercury
separation or discoloration. Do not attempt
to repair mechanisms in field. Complete
replacement mechanisms, including gaskets
and instructions, are available from low water
cutoff manufacturer.
c. Five (5) Years or 100,000 switch cycles. Replace
switch and float mechanisms.
C. Water Feeder and Additional Low Water Cutoff. Refer
to manufacturer's instructions.
D. Vent System. Check annually for:
1. obstructions
2. accumulations of soot
3. deterioration of vent pipe or vent accessories due to
condensation or other reasons
4. proper support—no sags, particularly in horizontal
runs
5. tightness of joints. Remove all accumulations of soot
with wire brush and vacuum
Figure 64: Boiler Flueway Cleaning