Electrical Connection - Trane UniTrane FCD Installation Operation & Maintenance

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Installation

Electrical connection

All electrical connections have to be
made on the terminal blocks of the
main electrical control box indicated
in Figure 19.
WARNING!: Disconnect the power
supply before making electrical
connections. Failure to do so may
cause serious injuries as well as
irreversible damage to certain
electrical components (motors,
relays, etc..).
WARNING! Use copper conductors
only. Unit terminals are not
designed to accept other types of
wiring. Aluminium or other
materials could lead to galvanic
corrosion or overheating at the
contact point thus damaging the
unit. The customer's electrical
connections must comply with
current standards.
FCD/FED fan coils manufactured by
Trane comply with CEI regulations.
The sensors and changeover
capsules must be installed on the
installation's entering water piping
(responsibility of the installer).
Figure 19 - Control box location
1 = Main electrical control box (following the control required)
The factory-mounted electric
heaters are fitted with a safety
device that prevents them from
functioning if the fan breaks down
(beware of automatic resetting
systems). All faults must be
reported to the maintenance
department.
As an option, the control box can be
fitted on the opposite side to the
water connections.
WARNING! If an electric heater is
connected by an installer, operation
of the electric heater must be
subordinated to operation of the
fan.
All power supply wiring must be
sized and selected in accordance
with local code and regulation.
Fast-acting circuit breaker, which is
sensitive to very low levels of
current leakage to ground (max
30mA) must be installed as a
general line protection.
Only copper conductors (1.5mm2
min) must be used as unit terminals
are not designed to accept other
types of wiring.
Unit head circuit breaker terminals
must be tight to 1.2 N.m torque.
UNT-SVX10G-E4
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