Shark HNG-3010, Operator'S Manual, Page: 7 / 36

HNG SERIES PRESSURE WASHER
OPERATOR’S MANUAL
7
Figure 2
UNION LOCATION
The following pipe and stack sizes are just recommen-
dations. Always consult a local plumber and venting con-
tractor for local codes and regulations during installa-
tion.
Distance From Regulator Pipe Size
0 - 59' 1" 1 PS
50' - 100' 1-1/2" 1 PS
100' - 200' 1-3/4" 1 PS
Natural Gas
Distance From Regulator Pipe Size
0 - 50' 1-1/2" 1 PS
50' - 100' 2" 1 PS
100' - 200' 2-1/2" 1 PS
Venting:
If the machine is used indoors, regulations or ventilation
concerns may call for a chimney or furnace pipe.
When venting the machine, if the machine is to be in an
enclosed area with a chimney on it, be sure the chimney
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
stack to be as straight as possible and to protrude through
the roof of the building at a proper location and at suffi-
cient height to eliminate down-draft. The chimney of a
gas fired machine should 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 flue pipe exceeds 10 ft. in length, or con-
tains more than two elbows, use next size larger pipe
and draft hood or the burner will not ignite. No movable
flue pipe damper should be used on any installation.
Draft Diverter:
Install the draft diverter above the heating coil. The
diverter enhances the draft through the burner by sever-
ing the chimney effect created in sections of furnace pipe
positioned below. It also helps prevent freezing of the
coil due to wind chill factors.
Figure 3
Optional
When the heating appliance is installed in a tightly closed
room without ventilation openings to the outdoors or other
rooms, provisions shall be made for supplying air for com-
bustion through special openings, one near the floor line
and the other near the 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 kitchen and/or bathroom ventilating fan, which may be
used for exhausting air outdoors -or has a vented fire-
place — it is recommended that combustion air be sup-
plied to the enclosed room through intakes extending to
the outside of the building and terminating in down-turned
fittings. These should be suitably arranged to prevent ob-
struction from snow or rain, and include a protecting
screen not smaller than 1/4 inch mesh.
Manual
Shut-Off Valve
1/8" NPT Plugged
Pressure Gauge
Port Location
Union
Control Manifold
Tee
Flow
3" (7.62 mm)
Minimum
Floor Level
Pipe
Cap
To
Gas Valve