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Page 8 WM 550-141-996/1105
RWB 6104WMNX R1005
Fuel Line Valves and Filter
Install two high quality oil duty rated shutoff valves
in accessible locations on the oil supply line. Locate
one close to the tank and the other close to the
burner, upstream of the fi lter.
Also install a generous capacity fi lter, rated for 50
microns or less, inside the building between the
fuel tank shutoff valve and the burner. Locate both
the fi lter and the valve close to the burner for ease
of servicing.
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When installing an NX outside air adapter (Beck-
ett Part Number 5199OU), refer to the instruction
sheet supplied with the adapter. This kit allows
combustion air to be piped directly to the burner.
The NX outside air adapter kit may also be used
for chimney vent applications that require outside
combustion air.
Fuel Line Installation
Route the fuel line through the opening in the bottom
of the burner cover. Continuous lengths of heavy
wall copper tubing are recommended. Always use
fl are fi ttings. Never use compression fi ttings.
Always install fi ttings in accessible locations. To
avoid vibration noise, fuel lines should not run
against the appliance or ceiling joists.
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Warning–Connect Outside
Air Duct to NX Adapter.
The outside air adapter must be installed by strictly
following the kit installation instructions. Do NOT attempt to
install outside air piping without using the outside ai
r
adapter and instructions provided. Abundant fresh air is
re
q
uired for
p
ro
p
er combustion.
Failure to install adapter
properly could result in
impaired combustion,
appliance soot-up, puffback of
smoke, and fire or
asphyxiation hazards.
S121
!
Caution–Do Not Use
Teflon Ta
p
e
Never use Teflon tape on any fuel fitting. Tape
fragments can lodge in fuel line components and fuel
unit, damaging the equipment and preventing prope
r
operation.
Damage to the Pump could cause
impaired burner operation, oil
leakage and appliance soot-up.
S111
!
NOTICE
For protection in the event of fi re, some states
require the shutoff valves to be a fusible-handle
design. R.W. Beckett Corporation recommends
this design as good industry practice for all in-
stallations.
Site Preparation
System Wiring
Refer to appliance manufacturer’s wiring diagram
for electrical connections.
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