Carrier 4 2 gw - Maintenance; Filter Cleaning; Prolonged Shutdown; Additional Maintenance

40 42 GW
English
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 g. 48).
Turn the two screws through 90° (1/4 turn).
Filter cleaning
Clean lters in accordance with the actual operating conditions
(approximately every 6 months).
• The acrylic air lter is washable in water.
Extract the lter
(vedi g. 49).
First vacuum clean the lter, then wash under tap water and nally dry.
Replace the lter in the correct position.
Prolonged shutdown:
• Before starting the air conditioner:
- clean or replace the unit air lters.
- 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
The inspection or replacement of internal components such as: fan
motor, coil, condensate discharge pump, oat switch, electric heater (if
tted), involve the removal of the condensate drain pan.
Condensate drain pan removal
• During the removal operation of the condensate drain pan protect the
oor with a plastic sheet under the uni
• Remove the frame-grille assembly by loosening the screws.
• Remove the four xing brackets on the side of the drain pan and
carefully remove the condensate drain pan.
System drainage : If the system needs to be emptied, remember that
a water head always remains into the coil and it may freeze in case
temperature goes below 0° thus causing the heat exchanger failure.
The heat exchanger can be totally emptied by opening the valves and
blowing in air in each valve for 90 seconds at a minimum pressure of 6
bar.
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 during
maintenance operations or for any other needs.
Maintenance and owner's guide