33
Rigging hook
SAFETY CONSIDERATIONS
Installation and servicing of air conditioning equipment can be
hazardous due to system pressure and electrical components.
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
precautions 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.
WARNING: Before performing service or maintenance
operations on the unit, turn off the main power switch to the
unit. Electrical shock could cause personal injury.
All units are designed for ducted installation (indoor and/or
outdoor air discharge). If ducts are not used the installer must
place a protection grille in the discharge.
Only use "Original Spare Parts" for repairs. Special attention
must be paid to the correct installation of the spare parts. The
parts must always be installed in their original position.
During unit operation, some of the refrigerant circuit elements
could reach a temperature in excess of 70
o
C so only trained or
qualified personnel should access areas protected by access
panels.
This unit should not be installed in an explosive atmosphere.
The unit can operate in normal radioelectric atmospheres in
residential, commercial and light industrial installations. For
other applications, please consult Carrier.
INSTALLATION
1.
Inspect shipment. Inspect the unit. If it is damaged, or if
the shipment is incomplete, immediately file a claim with
the shipping company.
2.
Check that the local power supply agrees with the
specification on the unit nameplate.
Siting the unit
Check the following points:
-
The location must be able to support the unit operating
weight (see Tables 1 and 2).
-
Allow sufficient space for servicing and air flow around
the unit (see Figs. 22, 23 and 24).
-
Select a location free of dust or foreign matter which may
cause coil clogging.
-
When installing the unit on the ground, select a site which
is not subject to flooding (outdoor units).
-
Consult all applicable rules and standards which govern
the installation of air conditioning equipment.
-
Vibration absorbers should be provided throughout the
installation to prevent noise transmission.
Rigging
1.
When rigging, use spreaders to prevent damage to the
panels (see Fig. 33). Avoid violent movements.
2.
To prevent damage while in transit, do not remove the unit
from the skid until it is at its final location.
3.
Never roll or tip the unit more than 15
o
.
IMPORTANT: Make sure that all unit panels are fixed in place
before moving. Raise and set down the unit carefully.
Fig. 33 - Rigging
IMPORTANT: The unit should be correctly levelled to avoid
drainage problems.
Ductwork (indoor air discharge)
The ductwork dimensions should be determined in accordance
with the air flow to be carried, and the available static pressure
of the unit.
It is recommended to observe the following considerations:
-
Whatever type of ductwork is used, it should not be made
of materials which are flammable, or give off toxic gases in
the event of a fire. The internal surfaces should be smooth,
and not contaminate the air which passes through. It is
recommended to use sheet metal ducts, adequately insu-
lated to avoid condensation and thermal leakage.
-
At the points where the ducts join the unit, it is recommend-
ed to use flexible connections to absorb vibrations, prevent
noise inside the ductwork and allow access to the unit.
-
Bends near the unit outlet should be avoided as much as
possible. If unavoidable, they should be as slight as
possible, and internal deflectors should be used when the
duct has large dimensions.
