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UNT-SVX041D-EN
Installation - Electrical
Power Connection
Electrical power connection to the unit should be made at
the junction box located inside the unit. The junction box
is located on the right side of the unit behind the fan/motor
shield. The fan/motor shield must be removed to gain
access to the junction box. Power connections may enter
the unit through the provided conduit openings on the
right side of the unit, or on the left side of the unit. The
conduit openings are 1-3/32 inch diameter holes with
removable plugs. Power connections to the unit shall be
made by a qualified electrician and must be made in
accordance with the supplied wiring diagram and all
applicable national and local codes.
All units include a single point power connection complete
with an optional main disconnect. If a disconnect is
selected, it is non fused.
When gaining access to the power junction box the unit
shall be disconnected by opening the remote disconnect
device prior to removing the fan/motor shield. Proper lock-
out/tag-out procedures shall be followed during service.
Grounding
The unit must be properly grounded in accordance with
the supplied wiring diagram and all applicable national
and local codes.
Low-Voltage Field Connections
Per UL 1995/CSA C22.2 No. 236, Section 21 field
connection of extra-low voltage circuits must be
segregated from hazardous voltage circuits by barriers or
by a minimum distance of five inches. Low voltage control
wiring is to enter the unit only on the left hand side.
Hazardous voltage power wiring is to enter the unit only on
the right hand side.
An 1-3/32 inch diameter opening with a removable plug is
provided on the left side of the unit for connection of low
voltage control wiring. If the control wiring is not wired in
conduit then a strain relief fitting must be provided to
protect the wire as it enters the unit.
WARNING
Hazardous Voltage w/Capacitors!
Failure to disconnect power and discharge capacitors
before servicing could result in death or serious injury.
Disconnect all electric power, including remote
disconnects and discharge all motor start/run
capacitors before servicing. Follow proper lockout/
tagout procedures to ensure the power cannot be
inadvertently energized. Verify with a CAT III or IV
voltmeter rated per NFPA 70E that all capacitors have
discharged.
WARNING
Live Electrical Components!
Failure to follow all electrical safety precautions when
exposed to live electrical components could result in
death or serious injury.
When necessary to work with live electrical
components, have a qualified licensed electrician or
other individual who has been properly trained in
handling live electrical components perform these
tasks.
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury.
All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state electrical codes.
CAUTION
Hazardous Voltage!
Failure to disconnect power before servicing could
result in in death or serious injury.
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power cannot be
inadvertently energized.
