Weil-McLain 550-141-826/1201 - Manual (Page 26)

SERVICE TECHNICIAN ONLY — read and follow completely.
Connect oil piping
General oil piping requirements
• Location and installation of oil tanks, oil piping
and burners must follow:
• NFPA 31, Standard for the Installation of Oil-
Burning Equipment.
• In Canada, CSA B139, Installation of Oil-
Burning Equipment.
• Local codes and regulations.
• Information provided with burner and fuel
pump.
• If any part of fuel oil tank is above level of burner,
installation of an anti-siphon device is highly rec-
ommended to be used to prevent flow of oil in case
of oil line break.
• Support oil lines as required by codes.
• Make tank connections with swing joints or copper
tubing to prevent breaking in case the tank settles.
Make swing joints so they will tighten as tank settles.
Non-hardening pipe joint compounds should be
used on all threads.
Do not use Teflon tape as an oil pipe
sealant. It can cause valves to fail, creating
hazards. Do not use compression fittings.
• Underground pipe must be run in a casing to pre-
vent oil leaking into ground or under floor. Check
local codes for information.
Oil piping connection at burner
See Figure 20 for recommended connection at burner,
allowing burner mounting door to swing open com-
pletely for servicing.
Figure 20 Recommended oil piping connection to burner
See local codes for
appropriate arrangement and
piping of filter control valves,
etc., back to oil tank
Flare fitting
Part number 550-141-826/1211 26
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