Carrier 40 DMC Installationsanweisung Seite 28

Nominal data
Notes
For sizing the system's electrical supply cable and slow-blow fuses,
consult the outdoor unit installation manual.
Consumption values are measured with free inlet and outlet at High
speed and with a voltage of 264 V ~ 50 Hz
(See table II)
Installation
Selecting the installation position
(See fig. 17-18)
• The 40DMC unit is designed ducted installation in suspended
ceilings.
• The unit must not be accessible to the public.
• As a rule, the unit cannot be installed at a height of less than 2.5 m.
• It is possible to install the unit at a height of between 2.2 m and
2.5 m from the ground if the system is configured for intake from
the rear. In this case, it is necessary to provide an intake duct with
minimum length of 250 mm.
Avoid the following:
• Positions exposed to direct sunlight.
• Areas near heat sources.
• Damp places and positions in which the unit could come into
contact with water (e.g. laundry rooms).
• Rooms in which shelving or furniture may obstruct the flow of air.
Do the following:
• Select a position capable of supporting the weight of the
operating unit.
• Leave sufficient space around the unit for maintenance and free
circulation of air.
• Leave an aperture in the suspended ceiling or ensure that a part
of the latter can be removed for carrying out maintenance
operations on the unit.
• Select a place which is free from dirt, foreign bodies or other
material that may obstruct the coil.
• Suitable dampers must be placed between the brackets of the
unit and the hanging system so as to prevent noise transmission.
• Install the unit in such a way that condensate can be drained
easily to a suitable waste outlet.
Note: A drilling template has been provided on the unit packaging
to facilitate installation.
Installing the unit
Important: the unit must be correctly levelled.
Insert the 4 M8 threaded tie rods into the ceiling. Insert the other
end of the tie rods through the slots in the hanging brackets on the
sides of the unit. Position the anti-vibration dampers, add the
washers and tighten the nuts until the unit is correctly fixed and
levelled. If space permits, place a layer of rubber or neoprene
between the ceiling and the unit.
On completion of these operations it is necessary to:
• install a suspended ceiling to conceal the unit;
• include a removable panel for future maintenance work;
• fit suitably sized grilles in the suspended ceiling to allow air intake.
(see fig. 19).
26 40 DMC
Nominal data and Items
supplied with the unit
Items supplied with the unit
• Front enclosure panel with pre-scored holes for duct connection +
extra screws (see fig. 14).
• Drilling template
• Installation Manual (see fig. 15).
• "Use and Maintenance" Manual (see fig. 16).
Condensate drainage
Important: do not lift the unit by means of the condensate
drain pipe.
All units are equipped with a condensate collection tray with 21 mm
external Ø drain pipe (see fig. 20).
Therefore fit a pipe for the evacuation of condensate.
Adhere to the following recommendations:
• Use pipes in galvanised steel, copper or transparent plastic. Do
not use normal garden hoses.
• Use material which ensures that the drain pipe connections are
totally sealed.
• If using rigid material for the outlet pipe, fit a number of flexible
couplings to absorb any vibrations from the unit.
• The drainage line must always be below the connection itself, with
a suitable gradient to facilitate outflow.
• Pour a few litres of water into the condensate collection tray and
check that it flows out correctly. If not, check the gradient of the
pipes and look for possible obstructions.
Intake configuration
Important: units configured for intake from below must not be
installed at a height of less than 2.5 m from the ground.
The unit is factory-configured for air intake from the rear (see fig. 21).
It can be configured for intake from below simply by inverting panels
A and B (see fig. 22-23).
During the operation, take the following precautions to avoid
damaging parts of the unit: remove the filter (see fig. 24).
Before removing the rear panel (A) pull the drain pipe out of its seat
by pressing gently on the sides (see fig. 25).
When fitting the rear panel, take care not to damage the insulation
of the pipes with the edges of the panels. On completion of the
operation, fit the filter (see fig. 26).
Air outlet configuration
The Carrier 40DMC unit is predisposed for either side or front air
outlet.
Installation with front outlet
The standard factory configuration is with front outlet and ducting
with rectangular conduits (see fig. 27).
The unit can be predisposed for ducting with circular conduits.
Each of the following configurations can be executed with the items
supplied with the unit.
40DMC018, 024, 028, 036S (see fig. 28-29-30-31-32).
40DMC036, 052, 060 (see fig. 33-34-35-36-37-38-39).