Gas Codes; Electrical; Gas Piping; Propane Gas - Landa VNG/VLP3-11021D Operator's Manual

VNG/VLP SERIES PRESSURE WASHER

Gas Codes:

Confer with local gas company and with proper municipal
officials regarding any specific code or regulations gov-
erning the installation. The installation must conform to
local codes.

Electrical:

The unit, when installed, must be electrically grounded in
accordance with local codes. Check for proper power sup-
ply using a volt meter; check the serial plate for the cor-
rect 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.
Figure 1
drop
horizontal
3 in. (76.2 mm)
MINIMUM
sediment trap (drip leg) must be
installed in the supply line.
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 determining the
gas supply pressure to the burner, and to prevent dam-
age 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.
1/4 in. test port
(6 in. - 14 W.C.
or 1/2 PSIG)
riser
gas
valve
3 in. (76.2 mm)
MINIMUM
DRIP LEG
Figure 2
manual
shut off valve
tee
3 in. (76.2 mm)
MINIMUM
gas
valve
location of union and drip leg for connecting
A manual shut-off valve shall be installed in the gas sup-
ply line external to the appliance. See Figure 2. The gas
line should be a separate supply direct from the meter to
the burner. It is recommended that new pipe be used and
located so that a minimum amount of work will be required
in future servicing. The piping should be installed to be
durable, substantial and gas tight. It should be clear and
free from cutting burrs and defects in structure of thread-
ing. Cast iron fittings or aluminum tubing should not be
used for the main gas circuit. Joint compounds (pipe dope)
should be used sparingly on male threads only and be
approved for all gases.

Propane Gas:

The following pipe sizes should be used between the regu-
lator and the gas valve on the burner.
Distance From Regulator
0 - 50'
50' - 100'
100' - 200'
OPERATOR'S MANUAL
1/8 in. N.P.T. plugged
pressure gauge port
union
flow
control manifold
pipe cap
floor level
UNION LOCATION
conversion burner to house piping.
8
Pipe Size
1" 1 PS
1-1/2" 1 PS
1-3/4" 1 PS