VNG/VLP SERIES PRESSURE WASHER
OPERATOR’S MANUAL
7
should be taken by operator of machine to prevent
excess moisture from reaching power machine or
electrical controls.
2. It is recommended that a partition be made between
wash area and machine to prevent direct spray from
spray gun from coming in contact with machine. Ex-
cess moisture reaching pressure washer or electri-
cal controls will reduce life of machine and may cause
electrical shorts.
3. During installation of machine, beware of poorly ven-
tilated locations or areas where exhaust fans may
cause an insufficient supply of oxygen. Sufficient
combustion can only be obtained when a sufficient
supply of oxygen is available for the amount of fuel
being burned. If it is necessary to install a machine
in a poorly ventilated area, outside fresh air may have
to be piped to burner and a fan installed to bring air
into area.
4. Do not locate near any combustible material. Keep
all flammable material at least 20 feet away.
Allow enough space for servicing the machine.
Local code will require certain distances from floor
and walls. (Two feet away should be adequate.)
AVOID SMALL LOCATIONS OR AREAS NEAR
EXHAUST FANS.
Gas Codes:
Confer with local gas company and with proper munici-
pal officials regarding any specific code or regulations
governing the installation. The installation must conform
to local codes.
Electrical:
The machine, when installed, must be electrically
grounded in accordance with local codes. Check for
proper power supply using a volt meter; check the serial
plate for the correct requirements.
Gas Piping:
All piping must comply with local codes and ordinances
of the National Fuel Gas Code. A sediment trap or drip
leg must be installed in the supply line to the burner.
See figure 1.
A union shall be installed in the gas line adjacent to and
upstream from the control manifold and downstream from
the manual main shut-off valve.
A 1/8" N.P.T. plugged tapping accessible for test gauge
connection shall be installed immediately upstream of
the gas supply connection for the purpose of determin-
ing the gas supply pressure to the burner, and to pre-
vent damage to gas valve.
If a manual gas shut off valve is not in the gas supply line
within six feet of the machine and in an accessible loca-
tion, one shall be installed.
Figure 2
Figure 1
3 in. (76.2
mm)
MINIMUM
DRIP LEG
3 in. (76.2 mm)
MINIMUM
Sediment trap (drip leg) must be
installed in the supply line.
Drop
Gas
Valve
Gas
Valve
1/4" Test Port
(6"-14 WC or 1/2"
PSIG)
Location of union and drip leg for connecting
conversion burner to house piping.
Control
Manifold
UNION LOCATION
3 in. (76.2 mm)
MINIMUM
Floor Level
Tee
Flow
Manual
Shut-off
Valve
1/8 in. N.P.T.
Plugged Pressure
Gauge Port
Union
Pipe Cap
