INSTALLATION
The HydraTherm Heating Unit is designed
to be simple and easy to use.
Remove all of the contents inside the
HydraTherm Heating Unit and then place
the racks into the unit.
• Allow a minimum of 16" (41 cm)
clearance above the lid so that the
packs can be removed without external
interference and 6" (15 cm) or more
in the back to be able to access the
electrical enclosure power switch.
WARNING
As with all electrical equipment and
components, the unit should be kept clear
of any hazardous or explosive gases.
• Insert the heat pack(s).
• Verify drain hose valve is in the closed
position.
NOTE: Fill the device, first with 3 cups of
tap water, followed by up to 12 gallons of
distilled water, stopping when the water
level has reached 2” from the top of the
tank.
NOTE: Exact amount of distilled water
varies depending on quantity of packs
being used.
NOTE: Distilled water helps to maintain
a clean device, but doesn’t conduct
electricity. For this reason tap water
is needed for the Low Water Sensor to
operate properly.
CAUTION
Adding additional packs after the unit is
filled will cause the water to displace and
may cause an overflow condition.
• To turn the unit on, simply plug the
supplied power cord into the back of
the unit and then into the appropriate
115-120VAC, 50/60 Hz outlet and set the
Power Switch to the "I" position. To turn
the unit o, simply move the switch to
the "O" position and unplug from the
mains power outlet.
NOTE: If unit is a Deluxe Model, ensure the
HEAT/DRAIN Switch is set to HEAT before
setting the Power Switch to "I".
WARNING
DO NOT attempt to use the unit if it is not
properly grounded.
CAUTION
A Ground Fault Interruption circuit or
receptacle (GFI outlet) is recommended
for additional protection.
• The Digital Thermostat, located on the
front of the unit, controls and maintains
the temperature of the water as well as
senses Low Water Condition
• For Deluxe Models: Ensure that the
HEAT/DRAIN switch is selected to the
HEAT position.
PUMP SYSTEM (DELUXE MODELS ONLY):
• Heat Mode
When the HydraTherm HEAT/DRAIN
Switch is in the "HEAT" position, the unit
will operate in a normal mode.
• Drain Mode
The HydraTherm Deluxe pump can be
used to drain the water from the tank.
When the HEAT/DRAIN Switch is set
to the "DRAIN" position, the pump will
turn on.
NOTE: If the filter is full of debris, unscrew
to remove, clean and replace before
draining. Make sure the shut-o valve
at the filter is in the open position when
draining, and turned to the CLOSED
position again before filling.
• Once the tank is empty, place the HEAT/
DRAIN Switch back to the "HEAT" mode
position. Refer to page 5 for the location
of switch and drain hose.
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