Maintenance & Repair
38 |
P a g e
Any Questions, Comments, Problems, or Parts Orders
Call NorthStar ProSHOT Product Support 1-800-969-7073
Rain Cap
Outer Cover
Inner Cover
Outer Wrap
Inner Wrap
Coil
Insulation
Gasket
Base
3/16
3/16
3/16
Inspect Heating Coil
and Desoot
Inspect and desoot coil annually
.
Most coils never require desooting. However, poor grades of fuel oil or inadequate
combustion air will cause heavy soot build-up on the outside surface of the heating coil
tubing. These deposits will insulate the coil, which then restricts air flow through the heat
exchanger and further aggravates the soot build-up. Be sure to wipe the sight glass.
If soot has built up on the exterior of the coil tubing, clean as follows:
1)
Wear protective clothing, goggles, and gloves.
2)
Disconnect Fuel line from outer cover. Disconnect Flame sensor and
High Tension Leads from black box bolted to the guard on side of
Outer Wrap (see Parts Explosion Heat Exchanger & Blower Housing).
3)
Remove (4) 5/16” Bolts from Outer Cover.
4)
Remove Outer Cover set aside.
5)
Remove (4) 5/16” bolts and nuts off the hold down brackets on the
Outer Wrap.
6)
Remove all inlet and outlet fittings.
7)
Remove the (2) 1-
1/4” Jam nuts and the 3/8” bolt underneath the
base.
8)
Lift off Outer Wrap, Inner Wrap, and Inner Cover. Set aside.
9)
Using a couple of straps, wrap them around the Coil and attach to a
hoist to lift off. You may also use the lifting eyes with hooks to lift with
hoist. This coil weighs at least 125 lbs. If no hoist is available, it is
recommended that this become a 2-man job each with the ability to
lift at least 65 lbs.
10)
Clean the coil.
11)
Reassemble the coil and lids to the machine. Make sure the white
insulation remains in place.
12)
Reattach high-pressure hose and thermostat and make sure all fittings
are tight before using the machine.
Inspect/Clean &
Adjust Electrodes
Inspect electrodes yearly and adjust as needed.
1)
Loosen front (2) bolts using a 1/2" socket.
Loosen side (2) bolts using a 1/2" socket and
wrench.
2)
Remove (3) screws using a 5/32" hex key allen
wrench from the combustion head. Lift off
combustion head from outer cover.
3)
Disconnect flame sensor and electrode wires.
Disconnect fuel line.
4)
Clean off carbon deposits, which may have
accumulated on the tips of the electrodes.
5)
Reset the spacing as shown.
NOTICE:
Wipe combustion head flame
sensor lens every 100 hours. If the flame
sensor lens gets sooted up the flame sensor
will be unable to sense a flame and therefore
the burner will not fire. Do not contamminate
or touch the fuel nozzle tip.
