Weil-McLain 550-141-826/1201 - Manual (Page 8)

SERVICE TECHNICIAN ONLY — read and follow completely.
Before installing boiler
Installations must comply with
• United States
• State and local plumbing, heating and electrical codes.
• National codes where applicable.
• Canada
• Canadian Standards Association, CSA B139, Installation Code for Oil-
Burning Equipment.
• CSA C22.1 Canadian Electrical Code Part One.
• Applicable local or provincial codes.
Before selecting boiler location
Check for nearby connections to:
• System water piping.
• Chimney. See page 16. Boiler can be top or back vented.
• Combustion and ventilation air supply. See page 9.
• Oil supply. See page 26
for oil line routing.
• Electrical power.
• Check area around boiler. Remove any combustible materials, gasoline
and other flammable liquids.
Provide clearances around boiler
(see Figure 2)
Jacket cap must be in place on boiler to
avoid requiring an 9" minimum clearance
from back or top of boiler to combustible
material.
• MINIMUM clearances from vent pipe to
combustible material
• 6 inches — Type “L” double-wall vent*
• 9 inches — Single-wall vent*
Flue pipe clearances must take precedence
over jacket clearances.
• Recommended SERVICE clearances
• 24 inches — Front and top
• 6 inches — Left side, back and right side
• 12 inches — Right side for burner door
swing radius
• Special close clearances (alcove, closet, under coun-
ters, etc.) — see Appendix, page 32.
Top View
Walls
Floor
Ceiling
Wall
Figure 2 Recommended service clearances
Left side
A
Provide 6" minimum clearance for service, provide 12"
minimum clearance for burner door swing.
B
Minimum clearance from vent pipe to combustible mate-
rial: 6" for type “L” double-wall vent, 9" for single-wall
vent.
24"
A
A
A
B B
B
24"
Homeowner — STOP! The procedures and information on this and following pages are intended only for a quali-
fied service technician who has the necessary equipment to inspect and adjust boiler and burner. A homeowner
should never attempt these procedures. The service technician must also read pages 1 through 7 before proceeding.
Failure to keep boiler area clear and free of combustible materials, gasoline and other flammable liquids and vapors
can result in severe personal injury, death or substantial property damage.
Part number 550-141-826/1211 8
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OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 —
Boiler Manual