Electrical Connections - LG AR-DR11-08A Installation And Operation Manual

Rooftop dedicated outdoor air systems doas 650 to 12,000 cfm
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Electrical Connections

DANGER
Line voltage wiring must be drawn and landed to the unit in accordance with all local and national electrical codes.
Improper connections and inadequate grounding can cause accidental injury or death.
All wiring to the unit must be drawn through one of the pre-punched holes in the bottom of the floor pan immediately underneath the control center or
through a field-cut hole in the side of the unit casing.
Field-Mounted Sensors
All field-mounted sensors are designed to be connected to the terminal strip located in the upper left corner of the control panel. All sensors
and end devices for the product have been factory wired with the exception of the following items:
Table 12: Field-Mounted Sensor Information.
Sensor Type
Supply Air Temperature Sensor
Space Temperature Sensor
Space Relative Humidity Sensor
Space CO
Sensor
2
• Special control sequences are required for many field-mounted sensors.
Do NOT run sensor wiring in the same conduit as high or low voltage AC wiring. Inaccurate signal levels are possible when AC power
wiring is present in the same conduit as the sensor wires.
Supply Air Temperature Sensor
A supply air temperature sensor is required on all units and ships loose with approximately twenty (20) feet of wiring for mounting in the sup-
ply air ductwork downstream of the unit. Wiring is two-conductor, 22 AWG, twisted, shielded, and stranded communication cable. A minimum
five (5) feet of duct run is required for installation of the supply air temperature sensor. If mounted too close to the discharge of the ventilator,
the sensor may provide a false reading to the microprocessor controller when in heating mode.
ELECTRICAL CONNECTIONS
Maximum Wire Length
1,500 feet
1,500 feet
1,500 feet
1,500 feet
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.
Mounting Location
Supply Air Ductwork Downstream of Ventilator
(Minimum ten [10] feet downstream of unit in straight run of duct)
Wall Mounted in the Space
Wall Mounted in the Space
Wall Mounted in the Space
31

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