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24 UV-SVP01A-EN
Wiring
Warning! Disconnect all elec-
trical power before servicing
unit to prevent injury or
death due to electrical shock.
Use copper conductors only.
The use of aluminum or
other incorrect types of wire
may result in overheating
and equipment damage.
Caution: To prevent damage
to the unit ventilator, refer to
the diagram provided on the
inside of the unit's access
panel for specific wiring infor-
mation. All controls are wired
at the factory. Single point
power, zone sensor, and
communication wiring is to
be installed by the contractor.
Important! All wiring must
comply with state, local, and
federal guidelines. Contact the
appropriate local agency for
furthur information.
Important! Wires for
temperature sensors,
communication lines, 24 VAC,
and contact closure sensing
inputs should not be bundled
with or run near high voltage
wiring.
q Power wiring must be
separated from the Tracer
ZN.520 and all low voltage
wires. External input wires
should be run in separate
conduits from high voltage
wires.
q Wires connected to pin headers
should be formed and routed
so as to cause minimum strain
on the Tracer ZN.520
connector.
q A minimum of 1.5" clearance
(from the pin centerline) for
wires up to 16 AWG is
recommended for bending and
forming wires.
q All sensor and input circuits are
at or near ground potential. Do
not connect any sensor or input
circuit to an external ground
connection.
q A close-coupled ground
connection is required for the
Tracer ZN.520. T
q Table 7: Tracer ZN.520 Wiring
Requirements, shows Tracer
ZN.520 wire types and lengths.
Power
The Tracer ZN.520 controller is
powered by 24 VAC. (See Table 7:
“Tracer ZN.520 Wiring Require-
ments”)A total of two 1/4-inch
quick-connect terminals are pro-
vided for 24 VAC connection to the
board.
Figure 12: Power connection to the Tracer ZN.520 unit controller
WARNING
!
CAUTION
!
Table 7: Tracer ZN.520 Wiring
Requirements
Application Wire Type Length
Contact Closure 18 AWG
Up to
1000 ft.
24 VAC 16-22 AWG
Up to
1000 ft.
Thermostat 16-22 AWG
Up to
1000 ft.
Zone
Sensor
16-22 AWG
Up to
200 ft.
Communications
Belden 8760
or equivalent
Up to
5000 ft.
Installation and Wiring