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2 .5 Condensate drain connection
The condensate that forms during operation of the heat pumps
flows through the exhaust pipe positioned inside the insulation
that exits on the rear of the unit with threaded by 1/2".
It must be connected to a pipe that allows the condensate to exit
regularly. THIS flue tube must also be provided with a siphon to
avoid that the depression created by the fan draws water from
the condensate tube in the fan compartment.
80÷100
2 .6 Aeraulic connections
If the installation of aeraulic channels is required:
− they do not rest on the unit
− unit maintenance operations, access to and removal of
accessories are allowed
− recirculation of air between inlet and outlet of the unit
is avoided
− they are adequately protected to prevent accidental
intrusion of materials inside the unit.
160
160
425
5D 2D
9
In particular environmental conditions, duly insulate the
aeraulic tubes to prevent condensation on the tubes.
9
Do not use external grilles with high pressure drop, such
as anti-insects grids. The grids used must grant a good air
flow.
9
The pressure drop of the ducts (including grids, and any
other items) at rated air flow must not exceed the external
static pressure of the unit (80Pa). In any case the ducts must
not exceed a total length of 10 meters (sum of suction and
outlet, with diameter of the ducts equal to 160 mm).
Fan useful static head
Pa
250
200
150
100
50
0
0
100
200
2 . 7 Electrical connections
9
Before starting any operation, ensure that the main power
supply is disconnected.
− Check the electrical system by verifying compliance with
applicable standards.
− Check that the system is suitable for the maximum power
consumption of the unit.
− Make sure that the voltage and frequency shown on the
rating plate is the same as the main line connection.
− Make the connection using cables of adequate section
for the committed power and in compliance with local
standards (in any event, not lower than 1.5 sq.mm
3G). Furthermore, their dimension must be suitable to
perform a voltage drop during starting phase lower than
the 3% of the rated one.
− For the main power supply of the heat pump heater the
use of adapters, multiple sockets and/or extension cables
is not permitted.
− It is good practise to provide for the installation as close
as possible to the supply disconnecting switch unit and
what required for protection of the electric parts.
− Connect the unit to an efficient ground connection.
− To exclude it from the main power supply, a bipolar switch
16A in compliance with current CEI-EN and a residual-
current circuit breaker of 30mA must be used.
0
It is forbidden to use the pipes of the water, heating or gas
systems to ground the appliance.
11
INSTALLATION
300
400
500
600
mc/h
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