Carrier 42ET Manuel D'installation, D'utilisation Et D'entretien page 35

3 - INSTALLING THE UNIT
When installation is complete - i.e. when the unit is
attached to the ceiling, air ducts are complete, water
manifolds are in position with shut-off valves ready on
the connection stubs, and electrical installation is
prepared - then connect the water pipe (1/2" gas screw
connector).
WARNING: Make sure that the coil protective caps
are removed before connecting the water pipes (see
Fig. 12).
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) is installed between
the screw connector and the shut-off valve.
When all units are installed, open the shut-off valves on
the manifolds, bleed and then pressurize the circuits.
To purge the coils, slightly undo the purge screws. The
installation can then be started.
NOTE: Do not energize until all connections are
made and earthed.
3.3 - Removal procedure
Disconnect the power supply at the disconnect
switch provided for the purpose during installation
(not supplied).
- Disconnect the power supply and connection
cables.
- Close the isolation valves in the pipework.
- Disconnect the flexible water pipes by unscrewing
the gas connectors.
WARNING: Since the flexible water pipes do not
have drain valves, a container 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.
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