Kerbl 1798-001 Mode D'emploi page 9

cal receptacle is located close enough
to plug in the heating cable. Form a
"drip loop" in the power cord to pre-
vent any pipe condensation from en-
tering the receptacle. If an extension
cord is necessary, use only a properly
sized and grounded VDE or TÜV ap-
proved cord.
I4. Position the thermostat
The thermostat must be placed tightly
against the pipe and secured with PVC
electrical tape. Do not use any type of
strapping. The thermostat would be
placed on the coldest end of the pipe.
The thermostat will sense the
temperature of the pipe and turn the
cable on and off as required to pre-
vent the pipe from freezing and to
provide economical operation.
I5. Apply the heating cable
Using a good quality PVC electrical ta-
pe, lay the heating cable on the pipe
and fasten it to the pipe at approxi-
mately 600 mm intervals.
I6. Insulate the pipe/heating cable
For pipe freeze protection under
extremely cold conditions or for mini-
mizing energy consumption, it is re-
commended that insulation be added
to the pipe over the heating cable.
The heating cable/pipe may be insula-
ted with either fibreglass or polyethy-
lene foam insulation.
INSULATION MUST BE APLLIED TO THE
THERMOSTAT IN THE SAME MANNER AS
THE REST OF THE HEATING CABLE/PIPE to
ensure that all sections of the pipe are
maintained at the same temperature. If
the thermostat area is insulated moreso
than the rest of the pipe, then the rest of
the pipe will not be kept as warm as the
thermostat area and may freeze. If the
thermostat area is not insulated as well as
other areas of the pipe, the thermostat
will be turning the cable on for longer peri-
ods than necessary, resulting in unecono-
mical operation. (The thermostat turns the
heating cable on when it senses tempera-
tures of approximately 3°C or less, and
turns the heating cable off when it senses
temperatures of approximately 13°C or
more).
FOR MINERAL WOOL INSULATION, A MA-
XIMUM OF 13 mm of insulation may be
applied over the heating cable. It is
important to note that mineral wool insu-
lation can be damaged by moisture, hence
a waterproof overwrap must be
applied to the insulation to prevent moi-
sture penetration.
FOR FOAMED INSULATION, A MAXIMUM
OF 13 mm of insulation may be applied
over the heating cable. Foamed insulation
is usually not affected by moisture, hence
waterproofing is usually not required.
I7. Connect power at start of cold season
Once the cold/winter season begins,
plug the power cord into an appropri-
ate receptacle. (See also "Operation"
below)
OPERATION OF THE PIPE FREEZE
PROTECTION CABLE
O1. The pipe freeze protection cable con-
tains an automatic thermostat which
turns the heating cable on when it
senses (falling) temperature of
approximately 3 °C, and turns the he-
ating cable off when it senses (rising)
temperature of approximately 13°C.
As a result, the cable does not require
any monitoring.
O2. It is recommended that in summer-
time, the heating cable be
disconnected (unplugged).
O3. It is recommended that just prior to
the cold/winter season, the heating
cable be inspected for signs of dama-
ge and the power supply checked to
ensure proper operation. If the hea-
ting cable is not damaged and the po-
wer supply is operational, then the
heating cable may be plugged into the
receptacle.
E
NGLISH
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