burner. The generator output voltage must be
between 110 to 130 Volts, (or between 59 to 63
Hz.), when the unit is under full load. If the
generator voltage falls out of this range, the RPM
of the engine will need to be adjusted to proper
speed. If the engine cannot maintain the proper
RPM, do not use the burner or any power from the
generator until the engine is repaired.
An AUXILIARY OUTLET is available on some SC
or SCU Series machines for running wastewater
recovery systems, light, or other accessories off of
the generator. A maximum of 1500 watts of 115v
power is available when the burner is on or 2000
watts when it is off. A switch/circuit breaker located
on the control panel will need to be reset if the
circuit is overloaded. Use of a ground fault
interrupter is recommended when plugging in
accessories or lights to the auxiliary voltage outlet.
To extend generator life, make sure the burner and
all auxiliary power is off when the engine is started
or stopped. Keep generator dry.
PUMPING SYSTEM:
PUMP: The pump is a positive
displacement, oil bath crankcase,
and triplex plunger type. It
contains 3 plungers, which move
forward and backward in a
cylinder to propel water past 3 inlet valves and 3
discharge valves into a high-pressure manifold. The
crank case oil window should be checked for oil
level and clarity and the pump for oil or water leaks
before each use. The sight window is located at
the rear (opposite the head) of the pump and
should be filled to the red dot with non-detergent
30w pump oil, available at your Hydro Tek dealer.
If the oil becomes milky in color, moisture is
entering the crankcase. Change the oil and contact
your authorized Hydro Tek dealer if the problem
persists.
Keeping filters clean and checking for air in pump
feed lines can prevent cavitation and increase
pump life. Do not run pump in the bypass mode
(pump running with the trigger gun off), for a period
of more than 5 minutes or the pump will begin to
overheat (maximum water temperature is 145°F).
Do not run pump dry. Protect from freezing. Do
not run a frozen pump until it is completely thawed.
UNLOADER AND PRESSURE RELIEF
VALVE: The unloader valve is preset at
the factory to govern the proper output
pressure of your machine. It will release
the pressure of the pump back into the inlet
if the trigger on the spray gun is released.
NEVER increase the set pressure on the unloader
to exceed the specifications for your machine.
All hot water machines are
equipped
with
a
SAFETY
PRESSURE RELIEF VALVE. In
the unlikely event that your unloader fails, or if the
burner overheats and builds excessive pressure,
the pressure relief valve will vent the pressure into
the atmosphere. If this occurs, turn off the machine
and have it checked by an authorized dealer. The
pressure relief valve will automatically reset itself.
BURST DISC TECHNOLOGY: This additional
safety feature functions to protect the coil from the
heating system and high system spikes of
pressure. If this component ruptures, you should
take the machine in to an authorized Hydro Tek
dealer. Do not plug off and continue to run.
CHEMICAL INJECTION SYSTEM: With an inlet
chemical injection system, the chemicals are
introduced at the inlet of the pump and controlled
with a chemical metering valve. The pump is fed
by a float tank to create a light vacuum, not to
exceed negative 3psi, which draws up the chemical
into the inlet manifold of the pump, mixes it with
water, and sprays it out of the nozzle under high
pressure.
Open the chemical valve only when the pickup tube
is submersed in a solution or air will enter the pump
causing the pump to lose pressure and run rough.
Do not use highly corrosive detergents or acid type
cleaners, and be sure to rinse and close the
chemical valve after each use or the chemical line
and check valve may become obstructed.
Chemicals should be between 5-9 PH. Consult
Hydro Tek for chemical compatibility. Chemical
abuse is not covered under warranty.
An
optional
DOWNSTREAM
INJECTOR
is
available if harsh chemicals
need to be applied. The
downstream injector will apply
chemicals only at low pressure,
by installing black soap nozzle
or opening spray wand valve if
equipped. If equipped standard
with downstream injection, adjust concentration
level by turning brass collar on the injector, or the
knob on pump or control panel. Read and follow all
safety instructions on the detergent label.
WATER SUPPLY
: An adequate water supply to
the pump must be maintained at all times. If the
SYSTEM INFORMATION
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