mundoclima Aerotherm BCC 200 CONNECT Manuel D'installation, D'utilisation Et D'entretien page 115

Pipes connections
Connect the water outlet/inlet using pipes and couplings that are
resistant to both the operating pressure and the hot water
temperature, which can reach 70°C.
 Do not use materials that cannot withstand high temperatures
 Do not use flexible pipes for unit connection.
Water filter (Provided by the customer)
 The filter is extremely important: it helps to lockout any
impurities in the water and avoid clogging the system and
heat exchanger.
 It must be installed immediately at the entrance to the water
mains, in a position that is easily accessible for cleaning.
 The filter should never be re-moved.
Pressure reducer (Provided by the customer)
If the inlet water pressure is less than 0,2MPa (2bar), a pump
should be installed at the water inlet.
For guarantee the safety usage of storage tank at the condition
of water supply hydraulic higher than 0,65MPa (6,5bar), a pressure
reducer should be installed at the water inlet pipe

A calibration pressure of 3-4 bar (0,3-0,4 MPa) is advisable.
Periodically check the pressure
Expansion vessel (Provided by the customer)
Be provided with an expansion tank proportioned to the boiler's
dimensions (you are advise to let the circulation be made by a
thermo technician).
To compensate the pressure variations and/or the water hammers
in the cold water network and to avoid water losses, it is
recommended to install an expansion vessel
An expansion tank allows the correct system pressure to be
maintained when the water temperature varies.
Safety valve (Provided by the customer)
Install all safety devices required by the local laws in force in the
countries where the unit is installed.
The manufacturer of the heat pump shall not be held responsible
for any damage caused by failure to comply with said laws.
 Install the safety valve (7 Bar max) (0,7 MPa max) on the
outlet of the domestic hot water, which must be connected to
a suitable discharge. If this is not done and the valve trips
and the room is flooded, the manufacturer of the heat pump
shall not be held responsible.
The discharge pipe connected to the safety valve must be
installed and angled downwards to an adequate drain and
sheltered from freezing.
The pressure-relief device is to be operated regularly to remove
lime deposits and to verify that is not blocked.
See Maintenance section.
To the installation information refer to: Water system piping
6 WATER CONNECTIONS
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