14
Part Number 550-110-832/1014
OWB & OWT
Series 2
Oil-Fired Water Boilers –
Boiler Manual
7 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.
• Local codes and regulations.
• Information provided with burner and fuel pump.
• If any part of fuel oil tank is above level of burner, an anti-siphon
device installation is highly recommended 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. Use only flare
fittings. Do not use compression fittings. Failure to
comply could result in severe personal injury, death
or substantial property damage from oil leakage
and/or fire hazard.
• Underground pipe must be run in a casing to prevent oil leaking
into ground or under floor. Check local codes for information.
Oil piping connection at burner
• See Figure 11 for typical oil connection at burner, allowing
burner mounting door to swing open completely for servicing.
• Connect oil line to burner using flare fitting (Figure 11).
• See local codes for appropriate arrangement and piping of
filter, control valves, etc. connecting to oil tank.
• Refer to burner manual for oil system requirements. Verify that
suction lift does not exceed stated limit. Where lift exceeds
limit for a one-pipe system, use a two-pipe system as directed
in burner manual.
Figure 11
Oil piping connection to burner, typical
