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PRELIMINARY CHECKS
Check equipment received
Carry out an external check to ensure that the units have
not been damaged during transport.
If there are any signs of damage or oil, contact the shipping
company before installing the units. Send the claim docu-
ments directly to the shipping company, stating clearly what
has been damaged. Carrier is not responsible for damage
sustained during shipment, handling and storage.
Check the contents correspond to those listed on the deli-
very note. Inform your nearest Carrier office if anything is
missing. To prevent loss or damage, do not remove the
original packaging until the unit has reached the final
installation site, where the installation must be carried out
by qualified personnel.
ATTENTION: Ensure that the unit power supply
complies with the power supply at the installation site.
SAFETY CONSIDERATIONS
Installation and servicing of air conditioning equipment can
be hazardous due to system pressure and electrical compo-
nents.
Only trained and qualified service personnel should install,
start-up or service air conditioning equipment. Untrained
personnel can perform the basic maintenance functions of
cleaning and replacing filters.
All other operations should be performed by trained service
personnel.
When working on air conditioning equipment, observe pre-
cautions in the literature, tags and labels attached to the
unit and other safety precautions that may apply.
Follow all safety codes. Wear safety glasses and work gloves.
Use a quenching cloth for unbrazing operations.
When handling or charging refrigerant, evacuating the refri-
gerant circuit, carrying out leak test, etc., ensure that ade-
quate precautions are taken.
ATTENTION - VERY IMPORTANT
•
To prevent electrical shock or equipment damage, make
sure disconnects are open before electrical connections
are made. If this action is not taken, personal injury
may occur.
•
Before performing service or maintenance operations
on the unit, turn off the main power switch to the
outdoor unit 38UQZ. Electrical shock could cause
personal injury.
•
During unit operation, some of the refrigerant circuit
elements could reach a temperature in excess of 90°C
so only trained or qualified personnel should access
areas protected by access panels.
•
The 40ALZ units are designed for ducted installation
(indoor air discharge). If ducts are not used the
installer must place a protection grille in the discharge.
•
Moving, lifting, transporting and positioning the
units must be done with all outside panels installed.
•
Move and position the units with care.
•
Do not start up the units until all electrical and refri-
gerant connections have been made and the system has
been charged with the necessary oil and refrigerant
quantity.
•
Ensure that the equipment used to move the units is
appropriate for the unit weight.
•
The location or base on which the 38UQZ outdoor
units are installed must be able to support the operat-
ing weight of these units.
The system used to fix or support the 40ALZ indoor
units must also be able to support their weight.
•
The units are supplied with a dry nitrogen holding
charge which must be removed before making the
refrigerant line connections and charging the units.
•
The 38UQZ and 40ALZ units should not be installed
in an explosive atmosphere.
•
The unit can operate in normal radioelectric atmo-
spheres in residential, commercial and light industrial
installations.
For other applications check the electromagnetic
radiation around the units. The units are tested in
accordance with applicable standards on electromag-
netic compatibility.
•
Do not connect R-22 units to R-407C units, e.g. do
not connect a 38UQ outdoor unit to a 40ALZ indoor
unit or a 38UQZ to a 40AL.
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