Operator`s manual

SHARK HNG • 97-610 • REV. 1/05
11
PRESSURE WASHER
OPERATOR’S MANUAL
INSTALLATION
Venting:
This machine is to be used indoors and requires venti-
lation.
When venting the machine, if the machine is to be in
an enclosed area with a vent pipe, be sure it is the
same size as the stack on the machine. Poor draft will
cause the machine to soot and not operate efficiently.
When placing the machine for installation, position the
vent pipe to be as straight as possible and to protrude
through the roof of the building at a proper location
and at sufficient height to eliminate down-draft. Vent-
ing of a gas fired machine shall be installed with a down-
draft diverter located about 3 ft. above machine.
Input - BTU Per Hour Draft Hood & Flue Pipe
Size
250,000 - 320,000 8 inch
320,000 - 410,000 9 inch
410,000 - 600,000 10 inch
600,000 - 750,000 12 inch
NOTE: If the vent pipe exceeds 10 ft. in length, or con-
tains more than two elbows, use next size larger pipe
and draft diverter or the burner will not ignite. No mov-
able vent pipe damper should be used on any installa-
tion.
Draft Diverter:
Install the draft diverter above the heating coil. The
diverter enhances the draft through the burner by sev-
ering the chimney effect created in sections of vent
pipe positioned below. It also helps prevent freezing of
the coil due to wind chill factors.
Figure 3
Optional
ceiling, each to be sized on the basis of one square
inch or more of free area for each 1,000 BTU input per
hour (see Figure 4).
When a room is of unusually tight construction and
has a ventilating fan, which may be used for exhaust-
ing air outdoors -or has a vented exhaust — it is rec-
ommended that combustion air be supplied to the en-
closed room through intakes extending to the outside
of the building and terminating in down-turned fittings.
These should be suitably arranged to prevent obstruc-
tion from snow or rain, and include a protecting screen
not smaller than 1/4 inch mesh.
Figure 4
Ventilating Air Opening.
1 square inch for each
1000 BTU per hour input.
Illustration showing air openings necessary
to supply air for combustion when installed
in an enclosed room.
Water Source:
The water source for the machine should be supplied
by a 5/8" I.D. garden hose with a city water pressure of
not less than 30 PSI. If the water supply is inadequate,
or if the garden hose is kinked, the machine will run
very rough and the burner will not fire.
Water Connection:
Connect the high pressure hose by pulling the coupler
collar back and then inserting it onto the discharge
nipple. Secure it by pushing the collar forward.
Attach the wand into the spray gun using teflon tape
on the pipe threads to avoid leaks.
Inspection and Testing Gas Piping:
The building structure should not be weakened by in-
stalling the gas piping. The piping should not be sup-
ported by other piping, but should be firmly supported
with gas hooks, straps, bands or hangers. Butt or lap
welded pipe should not be run through or in an air duct
or clothes chute.
When in a tightly closed room without ventilation open-
ings to the outdoors or other rooms, provisions shall
be made for supplying air for combustion through spe-
cial openings, one near the floor and the other near the