General Information; Unit Installation; Choosing The Installation Site - Carrier 42 DW Serie Manual De Instalación

General information

Unit installation

Read this instruction manual thoroughly before using the
unit and keep it for further consultation even after
installation.
This appliance conforms to the Low Voltage Directive
(73/23 EEC) and Electromagnetic Compatibility Directive
(89/336 EEC). The installation must be carried out by a
qualified installer.
The appliance must be installed in an area which is not
accessible to the public.
WARNING! Always disconnect the appliance from the mains
supply before starting any maintenance work and before
accessing any internal components.
• For safety reasons, installers are required to read the general
information carefully.
• Check that the appliance has not been damaged in transit. If any
damage is visible, report it to the carrier immediately. Do not
install or use damaged equipment.
• To prevent fire, explosion or injury, do not operate the unit
near dangerous substances or close to naked light equipment.
• Ensure that national safety code requirements have been
followed for the main supply circuit. Follow all current national
safety code requirements. Ensure that a properly sized and
connected ground wire is in place.
• Check that voltage and frequency of the mains power supply are
those required for the unit to be installed; the available power
must be adequate to operate any other appliances connected to
the same line. Make sure that properly sized disconnecting and
safety switches are installed.
• The manufacturer declines any liability fror damage resulting
from modifications or errors in the electrical or hydraulic
connections. Failure to observe the installation instructions, or
use of the unit under conditions other than those indicated in the
table "Operating limits" of the unit installation manual, will
immediately invalidate the unit warranty.
• After installation thoroughly test system operation and explain all
system functions to the owner.
• All of the manufacturing and packaging materials used for
your new appliance are compatible with the environment
and can be recycled.
• Dispose of the packaging material in accordance with local
requiremements.
• When installing the electric heater kit and after connecting
the electric cables, cover the connectors using the silicon
rubber caps.
Check that the coil is fixed to the structure to ensure its
correct ground connection.
• The use of hot water and electric heater together is not allowed.
If the unit equipped with electric heaters is connected to a hot
water source, the use of a water on-off valve is necessary at the
coil input in order to avoid that the heating element works when
water is circulating.
• In order to avoid electric shock, fire or injury, stop the unit and
Warnings: avoid...
... exposure to direct sunshine, when unit is operating in cooling
mode; always use shutters or shades. (see fig. 1).
... installing in environments affected by high frequencies
(see fig. 2).
... installing in environments where oil vapour is present
(see fig. 3/4).
... installing out-of-level: this causes dripping (see fig. 5).
... partial insulation of pipes (see fig. 6).
disconnect the safety switch in case of abnormal events (such
as smell of burning) and call Carrier Service for further
instructions.
• Do not place containers filled with liquids or other objects onto
the unit.
• A routine maintenance should be carried out on the unit to check
the correct operation of the electric connections and protection
devices (these operations must be carried out by qualified
personnel only).
• Maintenance operations must be carried out by specially trained
personnel.
• Do not attempt to repair, move, modify or re-install the unit on
your own. To avoid electric shock or fire make sure these
operations are carried out by qualified personnel only.
• Contact the qualified service if one of the following events takes
place:
- hot or damaged power supply cable;
- unusual noise during operation;
- frequent operation of the protection devices;
- unusual smell (such as smell of burning).

Choosing the installation site

Positions to avoid:
• Exposed to direct sun.
• Too close to heat sources.
• On humid walls or positions with water hazard, e.g. laundry
premises.
• Where curtains or furniture may obstruct free air circulation.
Recommendations:
• Choose an area free from obstructions which may cause irregular
air distribution and/or return.
• Location should be able to support unit operating weight and
avoid deformation, break or vibration during operation.
• Consider using an area where installation is easy.
• Choose a position that allows for the clearances required (see
drawing).
• Look for a position in the room which assures the best possible air
distribution.
• Install unit in a position where condensate can easily be piped to
an appropriate drain.
• 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.
• Note: A drilling template has been provided on the unit packaging
to facilitate installation.
... connecting condensate piping to sewage system drain without
appropriate trap. Trap height must be calculated according to the unit
discharge head in order to allow sufficient and continuous water
evacuation (see fig. 7/8).
... horizontal sections and bends in the condensate drain pipe which
do not have a minimum gradient of 5% (see fig. 9).
... flattening or kinking pipes or condensate pipes (see fig. 10/11)
... any slack in the electrical connections. (see fig. 12).
42 DW 19