P2_GEPARD_installer manual_ work basis_EN_02 - 03/10 - protherm
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INSTALATION
External accessories8.4
For regulating the boiler from a room regulator, only a regulator
that has a no-voltage input, i.e. that does not send any external
voltage into the boiler, may be used.
Load carrying capacity of the regulator with a relay switch is
24V / 0.1 A.
The room regulator must be connected to the boiler with a
two-wire plug. The recommended cross-section for the room
regulator connection (copper lead) is 1.5 mm
2
.
Leads for connecting the room regulator may not be coaxial
with the mains voltage leads.
The terminal for hooking up the room regulator with the relay
switch is supplied by the manufacturer with a connector and is
located in the frame of the boiler control panel.
Room regulators may be connected to the GEPARD boiler via
eBUS communication. For this type of equipment, however, we
recommend installing only Protherm Thermolink B, Thermolink
P or Thermolink RC regulators. Only in this way can the
manufacturer guarantee the optimal functioning of the boiler.
The room regulator leads are connected to the terminal board of
the boiler.
By means of the above-mentioned regulators the isothermal
regulation function can be activated. All settings for isothermal
curves are carried out with the aid of the room regulator.
Note: To activate the isothermal regulation the external
temperature sensor must be installed. The external sensor lead
is connected to the terminal board of the boiler.
The external sensor is placed on the coldest wall of the property
(most often the northern wall).
Caution: The room regulator lead and the external sensor may
not be coaxial with power cables (230 V current etc.).
Putting into operation 9
Filling the heating system9.1
Filling of water to the heating system using an external valve
which is recommended when installing a heating system
located on the distribution of heating water.
Note: In order to meet the heating system use fi lling loop, which
is located in the boiler. This only serves to replenish the water
system at a pressure drop heating water.
Re-fi lling of the boiler9.2
Bringing water into the heating system (small quantities only)
can be done via the inlet valve on the boiler.
When fi lling the boiler the following conditions must be
observed:
The water pressure on entry into the boiler must always be -
higher than the water pressure in the CH circuit.
Water is drawn into the boiler strictly in a cold state (CH -
temperature in the boiler up to 30°C).
The recommended water pressure in the cold boiler (up to -
30°C) is between 1 – 2 bar.
The pressure in the expansion tank is checked and if -
necessary adjusted to the correct value (see technical
parameters on end of this manual).
First ignition9.3
Boiler switch on / off button on the control panel. When you turn
to run the internal test control panel, then the boiler starts to
respond to the requirements of the system. Before starting the
fi rst check whether the gas inlet is open, all inputs and outputs
of the heating system and whether it is in a desired system
pressure.
Testing the heating system9.4
By activating these various test modes, you can enable special
functions on the appliance.
Press the on/off button to switch off the appliance.•
While keeping the button MODE pressed for more than 5 •
seconds, press the on/off button.
The screen displays the fi rst test mode "P01".
Press button + or - to choose the test mode that you wish to •
launch.
Press MODE to launch the test mode.•
The number of the "PX" test mode and !On" fl ash on the
screen.
The test mode will be automatically stop after 15 minutes.•
When you have fi nished, press the On/Off button to exit the •
test modes.
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