SYSTEM INFORMATION
9
BURST DISK TECHNOLOGY: This additional safety
feature functions to protect the coil and other components
from overpressurizing from the heating system
and high system spikes of pressure. If this
component ruptures, you should take the ma-
chine 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 slight vacuum which draws up the chemical into
the inlet manifold of the pump, mixes it with the 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 and
you will lose pressure and the pump will 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
5-9PH. 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. If equipped standard
with downstream injection, adjust concen-
tration 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 bottle.
WATER SUPPLY: An adequate water supply must be
maintained to the pump at all times. If the inlet flow is too low
or if there is air in the water supply, the pump will run rough,
pulsate and lose pressure. Maximum inlet water tempera-
ture is 145ºF. If the pump is run dry, it can quickly overheat.
The water is filtered by a garden hose adapter screen.
Clean and replace as required or install a large capacity
strainer to insure a clean supply of water.
DIRECT WATER FEED: Maintain an inlet water pres-
sure between 25 PSI and 60 PSI using a ¾" I.D. hose.
Install a back flow preventer on your supply hose if State
or Local ordinances require it. Install a water regulator if
your water pressure exceeds 60 PSI.
FLOAT TANK WATER FEED: A float tank is usually
used to regulate the incoming water supply to the pump and
introduce chemicals into the inlet of the
pump. The float tank and filter (located
inside the tank) should be flushed out if
debris accumulates in the bottom. If the float
tank overflows or runs out of water, adjust
or replace the float valve inside the tank and check the inlet
water feed pressure.
WATER TREATMENT: The inlet water can be deion-
ized for spot free rinse or softened to make detergent clean
more effectively. Do not use deionized water through the
coil on a hot water machine or coil corrosion will result.
Water softeners, however, will reduce coil scale deposits
and should be installed if your water is especially hard
HEATING SYSTEM:
COIL/HEAT EXCHANGER SYSTEM: The heat
exchanger contains a continuous coil of
pipe which forms a cold water jacket
around the outside of the heating area. It
is double wrapped with ceramic blanket
insulation and a stainless steel cover.
When the water is heated, scale
(calcium) will begin to form on the inside of the coil pipe
depending upon the hardness of the water in your area.
The coil can be DESCALED by using a scale remover
(Part # CB105) available at your authorized Hydro
Tek dealer. It is necessary to perform this service
only when a noticeable pressure drop is detected
across the coil. Follow directions to avoid damage.
Wear safety glasses.
TEMPERATURE SWITCH: The burner is equipped
with a high temperature limit switch which will shut off the
burner when the water temperature
becomes too hot. Hot water ma-
chines are equipped with an adjust-
able thermostat so that the operator
can control the outlet water tempera-
ture. The burner will automatically
cycle on and off to maintain the desired temperature.
STEAM INSTRUCTIONS: If your unit is steam - ca-
pable, install the green steam nozzle, turn thermostat to
250° F.
