14
PIPING WORK
8.3.3 DHW pipes connection
The connection between the DHW installation and
the DHW connections of the indoor unit must be done
taking into account the following considerations:
(1) Install a pressure relief valve ( factory supplied) at the
DHW inlet connection (as close as possible to the DHW
tank) to provide the following functions.
Pressure protection
Non-return function
Shut-down valve
Filling
Draining
(2)
DHW outlet connection, in order to make easier any
maintenance work.
8.3.4 To insulate the water piping
The piping in the complete water circuit MUST be
insulated to prevent condensation during cooling
operation and reduction of the heating and cooling
capacity.
If the temperature is higher than 30°C and the humidity
is higher than RH 80%, the thickness of the insulation
materials should be at least 20 mm to prevent
condensation on the surface of the insulation.
utlet
inlet
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