Installation Of Grille/Frame Assembly; Maintenance; Guide For The Owner - Carrier 42 GW serie Installationsanweisung

Installation of grille/frame assembly

See fig. 24 - 25.
Carefully unpack the assembly and check for damage sustained
in transit.
Attach the assembly to the unit by using the two hooks.
Tighten the four fixing screws, connect the two electric connectors
and insert the cables through the special cable fixing hook.

Maintenance

Cleaning and maintenance operations must be carried out by
specially trained personnel.
Before performing any service or maintenance operations, turn
OFF the main power switch.
To open the unit grille: (See fig. 48).
Turn the two screws through 90° (1/4 turn).
Filter cleaning
Clean filters in accordance with the actual operating
conditions and times (approximately every 6 months).
• The acrylic air filter is washable in water.
Electrostatic and active carbon filters (which can be used on the
unit) are not washable but must be replaced.
(See fig. 49).
Extract the filter
(See fig. 50).
First vacuum clean the filter, then wash under tap water and finally
dry.
Replace the filter in the correct position.
Prolonged shutdown:
• Before starting the air conditioner:
- clean or replace the unit air filters.
- check and clean the drain pan and the condensate discharge of
the unit
- check tightness of electric connections.
Additional maintenance
• The electric panel is easily accessible by removing the cover
28 42 GW
Maintenance and owner's guide
Use the screws supplied to fix the frame in position.
Ensure that the frame is not distorted by excessive tightening, that
it is aligned with the false ceiling and above all that there is a seal
between the air inlet and outlet.
In the drawing gasket " " prevents return air from mixing with the
supply air and gasket " " prevents the supply air from leaking into
the ceiling void.
On completion, the gap between the unit frame and the false
ceiling must not be more than 5 mm.
panel.
The inspection or replacement of internal components such as:
fan motor, coil, condensate discharge pump, float switch, electric
heater (if fitted), involve the removal of the condensate drain pan.
Condensate drain pan removal
• During the removal operation of the condensate drain pan
protect the floor with a plastic sheet under the unit.
• Remove the frame-grille assembly by loosening the screws;
drain the condensate water contained in the drain pan into
a bucket of at least 10 litres capacity, using the special
drain with a rubber plug.
• Remove the electrical panel cover and disconnect the electric
connections, connectors C
V
ground wire (see drawing in "electrical connections" section).
(See fig. 51).
• Remove the four fixing screws on the side of the drain pan and
carefully remove the condensate drain pan.

Guide for the owner

When installation and tests are completed instruct the Owner on
the main operating modes of the air conditioner, such as:
• Turning the unit ON and OFF.
• Changing the operation modes.
• Temperature selection.
Leave the installation manual with the owner for future use dur-
ing maintenance operations or for any other needs.
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