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CAUTION
Oil Supply
Pressure
Control Required
Damage
to the filter or pump
seals
could cause
oil leakage
and a fire hazard.
•
The oil supply inlet pressure to the burner can=
not exceed 3 psig.
•
Insure that a pressure limiting device is installed
in accordance with the latest edition of NFPA 31.
•
Do NOT install valves in the return line.
(NFPA 31, Chapter 8.)
•
Gravit_ Eeed Systems:
Always install an anti-
siphon valve in the oil supply line or a solenoid
valve (RWB Part # 2182602U)in
the pump/noz-
zle discharge tubing to provide backup oil flow
cut-off protection.
The burner may be equipped with a single-stage
fuel unit for these installations.
Connect the fuel
supply to the burner with a single supply line if you
want a one-pipe system (making sure the bypass
plug is NOT installed in the fuel unit.) Manual bleed-
ing of the fuel unit is required on initial start-up. If
connecting
a two-pipe fuel supply, install the fuel
unit bypass plug.
Fuel sup_p__!yl below
the level of the burner
-
When the fuel supply is more than eight feet below
the level of the burner, a two-pipe fuel supply sys-
tem is required. Depending on the fuel line diam-
eter and horizontal and vertical length, the instal-
lation may also require a two-stage pump. Consult
the fuel unit manufacturer's
literature, included with
the burner, for lift and vacuum capability.
Fuel line installation
=
•
Continuous
lengths of heavy wall copper tubing
are recommended.
Always
use flare fittings.
Never use compression
fittings.
•
Always
install fittings
in accessible
locations.
Proper routing of fuel lines is required to prevent
air cavitation and vibration.
Frozen
Plumbing
and
Water
Damage
Hazard
If the residence
is unattended
in severely
cold
weather,
burner
primary
control
safety
lockout,
heating
system
component
failures,
power
outages
or other
electrical
system
failures
could
result
in frozen
plumbing
and water
damage
in a matter
of hours.
For protection,
take preventive
actions
such
as having
a
security
system
instafled
that operates
during
power
outages,
senses
low temperature
and
initiates
an effective
action.
Consult
with your
heating
contractor
or a home
security
agency.
Wire
burner
Wire
burner
Burner
packaged
with appliance
Electrical
Shock
Hazard
Electrical
shock
can cause severe
personal
injury or death.
•
Disconnect electrical power before installing or
servicing the burner.
•
Provide ground wiring to the burner, metal con-
trol enclosures and accessories. (This may also
be required to aid proper control system opera-
tion.)
•
Perform all wiring in compliance with the Na-
tional Electrical Code ANSI/NFPA 70 (Canada
CSA C22.1 )
•
Refer to appliance manufacturer's wiring diagram
for electrical connections.
Burner
installed
at jobsite
•
Refer to Figures 11a and 11b, for typical burner
wiring, showing cad cell primary controls. Burner
wiring may vary, depending on primary control
actually used.
•
Refer to the appliance manufacturer's wiring dia-
gram prior to connecting the burner wiring. All wir-
ing must be in accordance
with the latest revision
of National Electric Code NFPA 70 and all local
codes and regulations.
In Canada, all wiring is
to be in accordance with the Canadian Electrical
Code, Part 1.
The 7505 primary control with valve-on delay (pre-
purge) and burner motor=off delay (postpurge) re-
quires a constant 120 volts AC power source sup-
plied to the BLACK wire on the control. The RED
wire goes to the appliance limit circuit. Please note
that other control manufacturers
may use different
wire colors for power and limit connections.
Special
wiring
required
with covered
burners
The
mounting
plate
is not a conduit
connec-
tion point.
Pass conduit and attached connector
through the opening in the mounting plate and at-
tach it directly to the burner=mounted 4x4 electrical
box.
If attaching a burner cover to a previously installed
burner, attach the mounting plate and then slide the
conduit into the "J" shaped conduit slot.
6104BAFG R04
Page 13
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