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3 - INSTALLATION OF THE UNIT
Condensate drain pipe (Fig. 10): Use a flexible pipe with
an inside diameter of 16 mm and provide a constant fall
of 20 mm/m over the whole horizontal pipe run. Install
a 50 mm (minimum) siphon to prevent gases and odours
from flowing back into the ceiling void.
WARNING: After drain pipe connection, control
clamping of the drain pipe and be sure there is no
water leakage.
If several units are connected to a common collector, a
device must be installed (Fig. 11). Before operating the
unit, ensure that the water flows into the internal
condensate drain pan by pouring some water into it. If
problems are detected, check the drain pipe slope and
look for possible obstructions. In all cases the
connection duct(s) at the unit outlet must be insulated
to prevent any condensate formation on the walls.
NOTE: The pressure losses of these ducts must be
compatible with the unit performance. The duct
must be as smooth as possible. Avoid sharp bends.
Check that there are no leaks or kinks, and that there
is no dirt or installation debris inside the ducts.
Debris within the ducts might damage the fan wheel
and the damper in the air diffusers.
When installation is complete - i.e. when the unit is
attached to the ceiling, air ducts are complete, water
mani-folds are in position with stop valves ready on the
connection stubs, and electrical installation is prepared
- then connect the water pipe (1/2" gas screw connector
for size 2 to 5 ; 3/4" gas screw connector for size 6 and
7).
WARNING: Be sure that the coil protective caps are
removed before connecting the water pipes (see
Fig. 19).
NOTE : Each fan-coil units shall be connected with
water flexible pipes in order to avoid any damage
due to vibrations.
Ensure that a gasket (not supplied by Carrier) is installed
between the screw connector and the stop valve.
When all units are installed, open the stop valves on
the manifolds, bleed and then pressurize the circuits.
To bleed the coils, slightly loosen the bleed screws. The
installation can then be started.
NOTE: Do not switch on the power until all
connections are made and earthed.
16
3.3 - Removal procedure
Switch off the unit power supply at the isolator
provided for the purpose during installation (isolator
not supplied by Carrier).
■ Disconnect the power supply and connection cables.
■ Close the isolating valves on the manifolds.
■ Disconnect the flexible water pipes by unscrewing
the gas connectors.
WARNING: Since the flexible water pipes do not
have drain valves, a receiver must be provided to
allow the cooling coil to be drained.
■ Disconnect the supply air ducts.
■ Disconnect the flexible condensate drain pipe. Drain
the siphon into a suitable vessel.
■ Support the unit lightly and release it by unscrewing
the four nuts on the threaded hangers. Lower the unit
carefully.
3.4 - Safety considerations relating to
final shut-down
Separate the units from their energy sources, allow them
to cool down and then drain completely.
DISMANTLING: see §3.3.
Respect the local environmental laws and regulations.
Presence of waste electrical and electronic equipment
(WEEE): At the end of its life, units must be disassembled,
with any contaminated fluids removed by professionals,
and then processed via approved channels for waste
electrical and electronic equipment (WEEE).
Check whether any part of the unit can be recycled for
another purpose.
Sort the components according to their material for
recycling or disposal, in accordance with regulations in
force.
Materials to be recovered for recycling - Steel - Copper
- Brass - Aluminium - Plastics - Insulation.
The proportions of materials for each unit are listed in
the Product Environmental Profile (PEP) available at
the following website: http://www.pep-ecopassport.org/
fr/consulter-les-pep/ or on request from our departments.
Any contaminated fluids must be disposed of by
specialist professionals.
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