8.914-364.0/97-6263 • Hotsy 9450/9460OF • Rev. 3/09
7
PRESSURE WASHER
OPERATOR’S MANUAL
INSTALLATION
Place machine in a convenient location providing
ample support, draining and room for maintenance.
Location:
The location should protect the machine from dam-
aging environmental conditions such as wind, rain,
and freezing temperatures.
These machines are designed for indoor
use. They must be stored indoors when
not in use.
1. The machine should be run on a level surface
where it is not readily influenced by outside
sources such as strong winds, freezing tempera-
tures, rain, etc. The unit should be located to al-
low accessibility for refilling of fuel, adjustments
and maintenance. Normal precautions should be
taken by the operator of the unit to prevent excess
moisture from reaching the power unit or electrical
controls.
2. It is recommended that a partition be made be-
tween the wash area and the machine to prevent
direct water spray from coming in contact with the
machine. Excess moisture reaching any electric
components or electrical controls will reduce ma-
chine life and may cause electrical shorts.
3. During installation of the machine, beware of
poorly ventilated locations or areas where exhaust
fans may cause an insufficient supply of oxygen.
Sufficient combustion can only be obtained when
there is a sufficient supply of oxygen available for
the amount of fuel being burned.
Electrical:
This machine, when installed, must be electrically
grounded in accordance to local codes. Check for
proper power supply using a volt meter.
Placement:
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.)
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 inad-
equate, or if the garden hose is kinked, the attached
pressure washer will run very rough and the burner
will not fire.
Connection:
Connect the wand, nozzle, hose and spray gun (where
applicable). On pipe thread connections, use teflon
tape to avoid water leaks. (See Component Identifi-
cation.)
Venting:
Adding exhaust vent pipe to your oil fired burner is
not recommended. It restricts air flow, causing carbon
build-up, which affects the operation, and increases
maintenance on the coil. If a stack must be used,
refrain from using 90° bends. If the pipe can not go
straight up then use only 45° bends and go to the next
size pipe. The overall pipe length must not exceed 6
feet in length.
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