Material Supplied - Carrier 42 DW Serie Manual De Instalación

Material supplied

• Front enclosure panel with pre-scored holes for duct connection +
extra screws. See fig. 15.
• Drilling template
• Installation Manual
• Wiring diagrams
Prior to installation
See fig. 16.
• It is advisable to place the unit as close as possible to the
installation site before removing it from the packing.
• Do not put on the packing heavy tools or weights.
IMPORTANT:
Do not lift the unit by the condensate drain discharge pipe, or
the connect couplings.
• Unit installation will be facilitated by using a stacker operating at
1500 to 1800 mm from the ceiling.
• Vibration absorbers should be provided throughout the installation
to prevent noise from being transmitted.
IMPORTANT:
Make sure that all unit panels are fixed in place before moving.
Raise and set the unit down carefully by taking it by the 4
coins.
• The 42DW 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.
• Leave enough space around the unit for maintenance and free
circulation of the air flow (See fig. 17)
Installing the unit
See fig. 18.
IMPORTANT: the unit must be correctly levelled.
Insert 4 M8 threaded rods into the celling. Introduce the other end
of the rods through the slots of unit suspension brackets.
Position the shock absorbers, add washers and screw the nuts
down until the unit is correctly suported.
If space permits, place a layer of rubber or neoprene between the
ceiling and the unit.
See fig. 19.
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.
20 42 DW
Material supplied and installation
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.
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 (See fig. 20).
• If ambient temperatures below freezing are expected, the drain
tube should be protected against the formation of ice.
To do so, a trace heater wire should be installed in the drain
connection.
This should be independent from the unit power supply, and come
into operation before the temperature drops below 0°C.
WARNING:
No dril holes should be made in the base of the unit, since the
drain pan may be perforated
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 42DW 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.