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INSTALLATION
PRIMO PILOT
MANUAL
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10
Treatment products from other manufacturers can be used if they
guarantee that the product is appropriate for all the materials used
in the appliance and off ers effi
cient resistance to corrosion. To fi nd
this information refer to their user manual.
4.2.1.9.3 - Purging the installation
The oxygen present in the air is extremely corrosive.
All necessary measures must be taken to ensure that the installation can be continuously
purged. Automatic air purging valves should be placed at each high point of the installation, and manual air purging valves should be installed
on each radiator.
Any deterioration of the appliance due to inappropriate fi lling water, and/or corrosion in the absence
of the use of treatment products, and/or improper degassing of the installation, will render the
warranty null and void.
RENDERING THE WARRANTY NULL AND VOID
4.2.1.9.4 - Connecting the pressure relief valve
The Heat Pump and the
PRIMO
Pilot
are both equipped with pressure-relief valves. The
PRIMO
Pilot
’s
pressure-relief valve is set at 3 bars.
The pressure-relief valve on the Heat Pump sets the maximum acceptable pressure in the installation (2.5 bars when hot). The maximum service
pressure in the Heat Pump must, consequently, be lower than 2.5 bars.
Example : If the Heat Pump is positioned 5m below the
PRIMO
Pilot
, the pressure reading on the
PRIMO
Pilot
would be 0.5 bars less than the real
pressure of the water in the Heat Pump. In this case, the maximum service pressure for the
PRIMO
Pilot
would be 2 bars.
Therefore it would be advisable to fi ll the heating circuit at an intermediary pressure (between 1 and 1.5 bars).
For safety reasons (potential presence of fl ammable R290 gas), drainage of the Pilot’s pressure-relief valve must
MANDATORILY
be done
outside the building
. The outlet of the drainage pipe (4m length provided with the pilot) must be placed downwards in order to avoid any
introduction of water inside, any risk of obstruction due to frozen water or any other pollution (see drawing).
If the provided drainage pipe is too short, it’s mandatory to use a well-adapted length (can by supplied on demand). It will have to be installed
as well as there will be no pinch on it, it will then ensure the drainage of the overpressure from the 3 bar safety valve outside the building.
Corrosion inhibitor :
- protects against the formation of limescale
- prevents «pinhole» type corrosion
- prevents, in new installations, the formation of sludge
and the proliferation of bacteria
(in low temperature networks: algae)
- prevents the formation of hydrogen
- eliminates the sound of the generators
The Pilot’s pressure-relief valve drainage pipe
must be properly secured until the outside of
the building without any pinching zone.
WARNING
Failure to comply with this requirement
concerning the evacuation of overpressure outside
the building releases the heat pump manufacturer
from any liability in case of incident.
