Trane VUVE Vertical Classroom Manual de instalación descargar pdf (Pagina 43)

Installation—Electrical

UV-SVN03F-EN 43

and local requirements. Refer to the following table for the

wire size range and maximum wiring distance for each

device.

Important: Do not bundle or run interconnection wiring

in parallel with or in the same conduit with

any high-voltage wires (110 V or greater).

Exposure of interconnection wiring to high

voltage wiring, inductive loads, or RF

transmitters may cause radio frequency

interference (RFI). In addition, improper

separation may cause electrical noise

problems. Therefore, use shielded wire

(Belden 83559/83562 or equivalent) in

applications that require a high degree of

noise immunity. Connect the shield to the

chassis ground and tape at the other end.

Note: Do not connect any sensor or input circuit to an

external ground connection.

Supply Power. Power supply wiring is to be connected

to terminals 1 and 2 at the junction box in the left end

pocket, below the discharge air grille.

Electric Heat (Option)

Supply Power. Supply power wiring is to be connected

to the following line terminals in the right-hand end

pocket:

• 208V or 240V, 3-phase, 3-wire system: L1, L2, and L3.

• 480V, 3-phase, 4-wire system: L1, L2, L3, and N

(neutral)

See “Wiring Diagrams,” p. 84 for a typical unit line and

interconnecting wiring diagram for electric heat coils.

Note: The supply neutral wire must be connected to the

neutral terminal block.

Operational controls and an electric heating safety device

are factory mounted. The safety device is a high temp cut-

out which de-energizes electric heating elements through

the K1 safety contactor.

DX System

A typical unit ventilator with DX coil includes an outside air

thermostat, a frost prevention thermostat, and a 24 V

transformer for condensing unit control.

Wire sizing is the same as given for the thermostat wiring

in the condensing unit installation instructions, or may be

obtained from the nameplate. The condensing unit must

be controlled by the same room thermostat that also

controls the unit ventilator.

NOTICE:

Use Copper Conductors Only!

Unit terminals are not designed to accept other types of

conductors. Failure to use copper conductors could

result in equipment damage.

WARNING

Hazardous Voltage!

Disconnect all electric power, including remote

disconnects before servicing. Follow proper lockout/

tagout procedures to ensure the power can not be

inadvertently energized. Failure to disconnect power

before servicing could result in death or serious injury.

NOTICE:

Equipment Damage!

480 V/3-Wire is NOT compatible with Trane Classroom

Unit Ventilator equipment. There must be a 4-wire

system with a separate ground. Failure to provide a 4-

wire system could result in equipment damage.

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