Installation; Electrical Connections - Carrier 40SMC***N Installation, Operation And Maintenance Manual

40SMC---N

Installation

Condensate drainage
All units are provided with an internal condensate drain pan which
incorporates a drainage tube 20 mm external Ø (009, 012, 018)
and 25 mm (024, 028, 036, 048, 060).
A tube for evacuating condensates must therefore be provided.
The recommendations below must be followed in all cases:
• Use galvanizad steel, copper or plastic piping.
Do not used ordinary garden hose.
• Use a material that guarantees perfect watertightness on the
drainage pipe.
• If rigid material has been used for the drainage, it is necessary to
provide some kind of elastic coupling in the drainage line to
absorb possible vibrations.
• The drainage line should always be below the connextion itself,
and should also slope to facilitate drainage.
• If temperatures below freezing are expected in the unit
surroundings, the drain tube should be protected against the
possible formation of ice.
To do so, a heating wire should be installed in the drain
connection.
Which should be independent from the unit power supply, and
come into operation before the temperature drops below
freezing point.
WARNING:
No drillholes should be made in the base of the unit, since the
drain pans may be perforated.

Electrical connections

VERY IMPORTANT:
To prevent electrical shock or equipment damage, make sure
the power supply sectioners are open before electrical
connections are made.
If this action is not taken, personal injury may occur.
First make the refrigerant connections and then the electrical
ones. In the case of disassembly, operations must be carried
out in the opposite sequence.
Fiel wiring must comply with valid codes.
Take special care when making the earth connection.
Voltage to unit must be within ±10% of voltage and ±10% of
current as indicated on nameplate.
Contact local power company for correction of improper line
voltage.
Check these before selecting supply wiring fuses an controls.
IMPORTANT:
Operation of unit on improper line voltage constitutes abuse
and is not covered by Carrier warranty.
IMPORTANTE:
• The mains supply connecting cable must be H07 RN-F type
(or higher), synthetic rubber insulation with Neoprene
coating, according to EN 60335-2-40 codes.
• Make the main electrical connection for the assembly via
the outdoor unit. Consult the wiring diagram sent with
the outdoor unit.
• To effect the unit power supply (wire inlet, conductor
section, protections, etc..), consult the Electrical Data Table,
the wiring diagram sent with the unit and the standards in
force affecting the installation of air conditioning
equipment.
VERY IMPORTANT:
The installer should place protection elements in the line
according to the legislation in force.
GB - 6
Ductwork
The ductwork dimensions should be determined in accordance
with the air flow circulating through it and with the available static
pressure of the unit.
This data appears in the correspondign Technical Documentation.
Various suggestions are made herebelow, regarding the layout
and design of the said doctwork:
• Whatever type of duct is used, it should not be made of materials
which are flammable, or which give off toxic gases in the event
of a fire.
The internal surfaces should be smooth, and not conteminate the
air which passes through.
• At the points where the duct joins with the unit, it is advisable to
use a flexible connection which absorbs vibration and prevents
the transmission of noise inside the ductwork.
• Bends should be avoided as much as possible near the unit
outlet.
If unavoidable, they should be as slight as possible, and internal
deflectors should be used when the duct is of large dimensiones.
IMPORTANT:
Duct calculation and design must be effected by a qualified
technician.
IMPORTANT:
• Make ground connection prior to any other electrical
connections.
• Make electrical connections between units prior to proceeding to
mains supply unit connection.
• Ensure that mains supply connection is made through a switch
that disconnects all poles, with contact gap of a least 3 mm.
NOTE:
• All field electrical connection are the responsibility of the
installer.
Indoor unit
Outdoor unit
Control
Main power supply
(field wiring)
Connecting cable,
indoor-outdoor
units (field wiring)
Connecting cable
indoor unit control
(field wiring)