Hotsy Gas Belt Drive • 8.931-236.0 • REV. 7/13
11
PRESSURE W
ASHER
OPERA
TOR’S MANU
AL
INSTALLATION
Hotsy Crossfire 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.
Hotsy Crossfire Oil Burner
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 flue is installed, have a professional service-
man adjust your burner for a #1 or #2 smoke spot on
the Bacharach scale.
Gasoline Engine
This gasoline engine is preset for operation at altitudes
below 3000 feet above sea level. If operated at higher
altitudes, it may be necessary to install a high altitude main
jet in the carburetor. contact an authorized engine sales
and service center for details.
Water Supply
This machine is designed to be connected to a pressurized
(20 to 100 PSI) water supply, capable of maintaining a
minimum of 6.0 GPM. If it is necessary to use a gravity
feed water tank, the following plumbing modifications will
be required.
A 1/2" nPT 3-way ball valve will need to be installed in the
water inlet line. Refer to
Figure 7.
Hotsy recommends the
use of Watts Regulator Valve #1/2 B6780 M1 (Hotsy P/n
921363) for this application. With this valve in place this
machine will be capable of using both a pressurized
or gravity feed water supply without additional
modifications. For proper operation it is important that
the valve be fully open for its intended supply. This
will prevent air from being drawn into the system from
the non active source. Also the pressure supply must
still be connected to the float tank. The connection of
a pressurized supply directly to the 3-way valve will
prevent detergent from being drawn into the system.
