2. Ensure the base meets the following specifications:
Specifications
Reason
Maximum width equal to the width of the outdoor unit.
Height at least 200 mm greater then the average depth of the
covering of snow.
This helps to protect the exchanger from snow and prevent
the formation of ice during the defrosting operation.
Location as far as possible from the thoroughfare.
The condensates discharge may freeze, causing a potential
hazard (sheet of black ice).
3. If the outdoor temperatures drop below zero, take the necessary
precautions to prevent the risk of freezing in the evacuation pipes.
4. Place the outdoor units beside each other and not on top of each
other to prevent the condensates from the lower unit to freeze.
6.5.5
Installing the outdoor unit on the ground
When installing on the ground, a concrete base must be installed, with no
rigid connection to the building served to avoid the transmission of
vibrations. Position a rubber floor support.
1. Dig a run-off channel with a pebble bed.
2. Install a concrete base frame with a minimum height of 200 mm
capable of bearing the weight of the outdoor unit.
3. Install the outdoor unit on the concrete base frame.
6.6
Hydraulic connections
6.6.1
Special precautions for the connection of the heating
circuit
During connection, it is imperative that the standards and corresponding
local directives be respected.
Depending on the heating system installation, install a filter on the
heating return circuit.
Depending on the heating system installation, install a sludge collector
or a magnetic filter and/or additional mechanical filter on the heating
return, just before the heat pump, if necessary.
If components made from composite materials are used (polyethylene
connection pipes or flexible hose), we recommend components with an
anti-oxygen barrier.
6.6.2
Connecting the heating circuit
Heating installations must be able to guarantee a minimum flow rate at all
times.
Important
To ensure maintenance and accessibility to the various
components in the module, the hydraulic pipes have been
purposely designed with a degree of play. This play is necessary
and controlled. This pipe design guarantees the leak-tightness of
the product.
1. Make the hydraulic connections between the indoor unit and the
heating circuit.
2. Install an automatic air vent at the highest point on the heating circuit.
Fig.26
MW-M001452-3
200
2
1
3
6 Installation
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