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Hotsy 558/559
LP Vapor Fuel
The model 558 has been factory built to use LP vapor
fuel. DO NOT USE LIQUID FUEL.
Have a qualified gas serviceman install the LP vapor fuel
supply line to the machine. See Figure 5 for location of
gas inlet.
Natural Gas Fuel
The model 559 has been factory built to use natural gas
fuel.
Have a qualified gas serviceman install the natural gas
fuel supply line to the machine. See Figure 5 for location
of gas inlet.
Gas Regulator
It is very important that the incoming gas pressure
be between 12.0-14.0 Inches Water Column (.43-
.50 PSI). If your fuel supply does not produce the
correct pressure range contact your local Hotsy Service
Representative.
The gas pressure coming out of the regulator and going
to the burner ring has been factory set. You should not
readjust the burner ring gas pressure. If you replace your
gas valve, you will need to adjust the new valve. Refer
to your machine’s specification plate for the correct
pressure setting. Follow the installation and adjustment
instructions provided with your replacement valve.
Electrical
WARNING: Make sure all switches and controls
are in the OFF position prior to connecting electrical
supply.
WARNING: DO NOT stand in water while connecting
and disconnecting electrical supply.
WARNING: Always disconnect power before servic-
ing your pressure washer.
IMPORTANT: Consult local building codes for exact
electrical requirements. Licensed contractors may be
required.
IMPORTANT: All wiring must be of proper voltage and
amperage rating and conform to applicable codes.
IMPORTANT: This machine must be electrically
grounded. LA MACHINE DOIT ÊTRE MISE À LA
TERRE.
Grounding Instructions: Make sure all switches and
controls are in the OFF position prior to connecting
electrical supply. Do not stand in water while connecting
and disconnecting electrical supply. If it should malfunction
or break down, grounding provides a path of least
resistance for electric current to reduce the risk of electric
shock. The product must be connected to an appropriate
power source that is properly installed and grounded in
accordance with all local codes and ordinances.
DANGER: Improper connection of the equipment
grounding conductor can result in a risk of electro-
cution. Check with a qualified electrician or service
personnel if you are in doubt as to whether the
outlet is properly grounded. DO NOT modify the
plug provided with the product - if it will not fit the
outlet, have a proper outlet installed by a qualified
electrician. DO NOT use any type of adaptor with this
product.
WARNING: To reduce the risk of electrocution, keep
all connections dry and off the ground. DO NOT touch
plug with wet hands.
Figure 5 - Gas Valve Components
PRESSURE TAP PORT
TO BURNER RING
SIDE VIEW
SELECTION BUTTON (OUT FOR NATURAL GAS)
FINE ADJUSTMENT
GAS VALVE
GAS TEE
GAUGE
GAS INLET
MAIN ADJUSTMENT
ON/OFF KNOB