General Information; Unit Operation; Unit Installation; Choosing The Installation Site - Carrier 42N_S serie Installations- Und Bedienanweisungen

General information

Unit installation

Read this instruction manual thoroughly before using the unit and
keep it for further consultation even after installation.
This unit is not intended for use by persons (including children)
with reduced physical, sensorial or mental capacities or by
inexperienced persons unless they have been instructed regarding
use of the appliance and are supervised by a person responsible for
their safety. Children must be supervised to ensure they do not play
with the unit.
The unit complies with all applicable standards for EC marking
(for further details see Declaration of Conformity).
The installation must be carried out by a qualified installer.
For safety reasons, installers are required to read the general
information carefully.
Follow all the instructions below to ensure safety.
Inspect the unit for damage due to improper transport. 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.
If the product is supplied without a Carrier control device,
verification of EMC conformity is the responsibility of the
installer.

Warnings: avoid...

... any obstruction of the unit air outlet or return. Leave 1 metre
minimum of free space (See fig. 1)
... exposure to oil vapours (See fig. 2)
... installation in areas with high frequency waves (See fig. 3)
... any rise in the condensate drain piping.
... horizontal condensate drain piping with less than 2% slope (See fig. 4)
... slack on electrical connections (See fig. 5)
... disconnecting water connections after installation (See fig. 6)
... exposure to direct sunshine, when unit is operating in cooling mode;
always use shutters or shades (See fig. 7)
... positions too close to heating sources which may damage the unit
42N_S 42N_E
22

Unit operation

In order to avoid electric shock, fire or injury, stop the unit and
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.
Maintenance
WARNING: Disconnect the mains power supply prior to any
maintenance operations or prior to handling any internal parts of
the unit.
A routine maintenance should be carried out on the unit to check the
correct operation of the electric connections and protection devices.
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

Choose an area free from obstructions which may cause irregular air
distribution and/or return.
Check that the wall surface is flat enough to allow easy and safe
installation of the unit. The wall structure should be strong enough
to carry the unit weight and avoid deformation, rupture 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.
The minimum distance of the unit from any combustible surface must
not be lower than the values shown in fig. 18, 18A, 18b, 19.
Positions to avoid:
Exposed to direct sun.
Too close to heat sources.
On humid walls or positions with water hazard, e.g. laundry premises.
Exposure to oil vapours (e.g. kitchens, workshops).
Where curtains or furniture may obstruct free air circulation.
(See fig. 8)
... connecting condensate piping to sewage system drain without
appropriate trap (See fig. 9)
... only partial insulation of the piping (See fig. 10)
... installation not correctly levelled which will cause condensate
dripping (See fig. 11)
... flattening or kinking pipes or condensate pipes (See fig. 12)