CGWH-SVX01D-E412
Installation
Electrical connections
CAUTION!
1. The greatest care should be
taken when cutting through
passages and installing electric
wiring. Under no circumstances
should chips of metal or cuttings
of copper or isolating material
fall into the starter panel or
electric components. Relays,
contactors, terminals and control
wiring should be covered and
protected before power supplies
are connected.
2. Install power supply cabling as
shown in wiring diagram.
Adequate cable gland should be
chosen, ensuring no foreign bodies
enter the electrical housing or
components.
CAUTION!
1. Cabling must comply with
standards in force. The type
and location of fuses must also
comply with standards. As a
safety measure, fuses should be
visibly installed, close to the unit.
2. Only copper wiring should be
used. Using aluminium wires
can produce galvanic corrosion
and possibly lead to superheat
and failure of connection points.
Trane provides a single power
supply which includes the
transformer.
Warranty reserves will be
formulated if a transformer, not
supplied by Trane, is installed inside
the electric panel
Interconnection between
CCUH and Remote
Condenser
The CCUH has the capability to
control the fan staging of the
remote condenser if the option is
taken.
Each refrigerant circuit can
control from one up to 6 fans per
circuit using a 4 output relays
(10A/250VAC/AC1/SPDT) card
option provided in the control box
the of CCUH. The external wiring
to the remote condenser shall be
connected directly to the terminal
block for the optional fan relay
cards.
CAUTION!
Power supply to the outdoor fan
relays shall not be provided from
the CCUH unless special care about
voltage and power consumption
was evaluated.
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