Carrier 42CN, Installation, Operation And Maintenance Instructions

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General information
Read this instruction manual thoroughly before using the unit and
keep it for further consultation even after installation.
Unit installation
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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 for 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 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 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 requirements.
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;