Installation; Unit Preparation - Carrier 42N_S Manuel D'installation

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 ix it
to the special tabs on the unit rear side and then secure it with
the two screws supplied (See ig.14-15).
If the unit is installed at 150 mm from the loor or lower, use
the angles supplied with the base unit to prevent the user
from touching the moving parts (See ig.14-15).
If, instead, the unit is installed higher than 150 mm from the
loor, 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 loor, the angles
supplied need not be used. For horizontal installation at more
than 2.5 meters from the loor, 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.
Floor-mounted vertical unit (See ig. 18)
The unit is provided with supporting feet and cover panels
(models with cabinet).
For positioning and drilling use the template printed on the
packaging.
Drill four holes for the screw anchors close to the upper and
lower hooks.
Install the supporting feet by inserting the special tab into the
corresponding slot on the unit plate (See ig. 17). Centre the
two indentations and secure each supporting feet using the
corresponding clips supplied with the kit.
If a baseboard is mounted onto the wall, remove the pre-cut
tab from the cover panel. Install the cover panels by hooking
them to the slots on the cabinet lower part and secure them
with the screws supplied.
Position unit to wall and secure it with screws. To facilitate
cabinet installation, it is suggested to use lathead screws.
To complete the installation make electrical and water
connections as per the diagram inside the control box panel.
When all connections have been made, install the cabinet as
previously described.
Start-up of all units supplied without cabinet (42NF – 42NP)
should be carried out by the installer according to safety
directions for easy access to live and moving parts provided for
by EN 60335-1 and EN 60335-2-40 standards (see Fig. 18A and
18B but only as an indicative example).
WARNING: With wall-to-wall carpet the hole points must be
moved up by 10 mm (as indicated on the template).
Wall-mounted vertical unit
This unit is not provided with supporting feet and cover
panels.
Install the unit as indicated above and keep it at least 100 mm
from the loor.
Ceiling-mounted horizontal unit
(See ig. 19-20)
Use the template printed on the packaging for ceiling
mounting of the unit.
Units with cabinet 42NM and 42NZ
Make four holes for the screw anchors near the four hooks ig.
19 (2 side and 2 front hooks).
Concealed units 42NF and 42NP
Attach the two brackets supplied for horizontal installation to
the unit, securing them with the screws as shown in igure 20.
Make four holes for the screw anchors near the four side hooks.
Hook the unit on the screw anchors in the ceiling and adjust
the 4 screws.
Make certain the fan coil is horizontally levelled.
Make electrical and water connections and install the cabinet.
Condensate drain
Coil surface condensation formed during the cooling cycle is
collected in a pan purposely placed under the coil and then
drained out through a drain pipe itted on the coil connection
side.
A simple lexible tube which its Ø 20 mm is recommended. To
facilitate correct condensate draining, make sure that the drain
pipe is not bent or restricted and that it has the required slope
(at least 2%) along its length. A drain trap is recommended (See
ig. 9)
Checking
Before unit operation verify that the water lows into the
internal condensate drain pan by pouring some water into it.
If problems are detected, check the drain pipe slope and look
for possible obstructions.
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42N_S 42N_E