General Information - Carrier 42N_S Installation And Operation Manual

General information

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.
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.
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;
Installation
Receipt of unit
Check that packaging is undamaged.
Unpack unit and check immediately for damage during transportation.
Packaging contains the base unit and, if supplied, the unit cabinet.
Verify that all components ordered are supplied.
Unit preparation
Take out and position template printed on the packaging. It is
advisable to keep cabinet packed until installation is complete.
To install the cabinet, position it onto the base unit and fix it to the
special tabs on the unit rear side and then secure it with the two
screws supplied (See fig.14-15).
If the unit is installed at 150 mm from the floor or lower, use the angles
supplied with the base unit to prevent the user from touching the
moving parts (See fig.14-15).
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.
always use shutters or shades (See fig. 7)
... positions too close to heating sources which may damage the unit
(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)
If, instead, the unit is installed higher than 150 mm from the floor, use
the rear closing grille kit (code 42N0954-42N0955-42N0956-42N0957)
according to the unit size. For horizontal installation at more than 2.5
meters from the floor, the angles supplied need not be used.
For horizontal installation at more than 2.5 meters from the floor, the
angles supplied need not be used.
Installation
Before proceeding to unit installation, it is recommended to assemble
the accessories according to the instructions supplied with the kit.
It is advisable to lock the cover on the opposite side to the control or
on both sides if the control is not positioned on the unit.
Knock out the prepunched part of the cover to insert the screw.
Furthermore it is possible to lock the control cover.
42N_S 42N_E 17