HOTSY 680SS • 8.914-368.0 • Rev. 02/15
9
PRESSURE WASHER
OPERATOR’S MANUAL
INSTALLATION INSTRUCTIONS
Figure 4 - Burner Air Band Adjustment
10
8
6
4
2
Air Shutter Locking Screw
Air Shutter
Air Band
Air Band Locking Screw
Air Shutter Locking Screw
Venting
CAUTION: All venting must be in accordance with ap-
plicable federal and state laws, and local ordinances.
Consult local heating contractors.
If the pressure washer is to be used in an enclosed area,
a fl ue must be installed to vent burner exhaust to the
outside atmosphere. Be sure the fl ue is the same size
as the burner exhaust vent on the pressure washer lid.
Poor draft will cause the pressure washer to soot and
not operate properly. When selecting the location for
installation, beware of poorly ventilated locations or areas
where exhaust fans may cause an insuffi cient supply of
oxygen. Proper combustion can only be obtained when
there is a suffi cient supply of oxygen available for the
amount of fuel being burned. If it is necessary to install
the machine in a poorly ventilated area, outside fresh air
may have to be piped to the burner and a fan installed to
bring suffi cient air into the machine. Locate the pressure
washer so that the fl ue will be as straight as possible and
protrude through the roof at a proper height and location
to provide adequate draft. This oil fi red pressure washer
must have a draft regulator installed in the fl ue (available
from most heating contractors). A draft regulator will
permit proper upward fl ow of exhaust fl ue gases.
Beckett Oil Burner
Burner Air Adjustment:
The oil burner is preset for
operation at altitudes below 1000 feet. If operated at
higher altitudes, it may be necessary to adjust the air band
setting. Adjust the air band for a #1 or #2 smoke spot on
the Bacharach scale.
To adjust, start machine and turn burner ON (refer to
Operation
for details). Loosen two locking screws
found in the air shutter openings (refer to
Figure 4
) and
close air shutter until black smoke appears from burner
exhaust vent. Note air band position. Next, slowly open
the air shutter until white smoke just starts to appear.
Turn air shutter halfway back to the black smoke position
previously noted. Tighten locking screws.
If the desired position cannot be obtained using only the
air shutter, lock the air shutter in as close a position as
can be obtained, then repeat the above procedure on the
air band setting.
CAUTION: If white smoke appears from burner
exhaust vent during start-up or operation, discontinue
use and readjust air bands.
NOTE: If a
fl
ue is installed, have a professional ser-
viceman adjust your burner for a #1 or #2 smoke spot
on the Bacharach scale.
For additional burner component information, see
Burner Assembly
. It is recommended that the oil burner
be serviced yearly or as needed. Contact your local
service center.
Cross
fi
re Oil Burner
Burner Air Adjustment
: The oil burner on this machine
is preset for operation at altitudes below 1000 feet. If
operated at higher altitudes, it may be necessary to
adjust the air band for a #1 or #2 smoke spot on the
Bacharach scale.
To adjust, start machine and turn burner ON. Loosen
two locking screws found on the air band and close air
band until black smoke appears from burner exhaust
vent. Note air band position. Next, slowly open the air
band until white smoke just starts to appear. Turn air
band halfway back to the previously noted position.
Tighten locking screws.
Burner Air Adjustment
Reference Numbers
Air Band Locking Screws
Air Band
CAUTION:
If white smoke appears from burner ex-
haust vent during start-up or operation, discontinue
use and readjust air bands.
NOTE:
If a fl ue is installed, have a professional service-
man adjust your burner for a #1 or #2 smoke spot on
the Bacharach scale.
