Introduction
RTU Open v3 CARRIER CORPORATION ©2019
Installation and Start-up Guide All rights reserved
4
Protection Built-in surge and transient protection for power and communications in
compliance with EN61000-6-1.
Incoming power and network connections are protected by non-replaceable
internal solid-state polyswitches that reset themselves when the condition that
causes a fault returns to normal.
The power, network, input, and output connections are also protected against
transient excess voltage/surge events lasting no more than 10 msec.
To protect against large electrical surges on serial EIA-485
networks, place a PROT485 at each place wire enters or exits the building.
Status indicators LEDs indicate status of communications, running, errors, power, and digital
outputs
Environmental operating
range
-40 to 158°F (-40 to 70°C), 10–95% relative humidity, non-condensing
Controllers should be mounted in a protective enclosure.
Vibration during operation: all planes/directions, 1.5G @ 20–300 Hz
Shock during operation: all planes/directions, 5G peak, 11 ms
Shock during storage: all planes/directions, 100G peak, 11 ms
Overall dimensions A:
B:
6-1/2 in. (16.5 cm)
6-1/2 in. (16.5 cm)
Mounting dimensions 7 mounting holes in various positions
Depth 1-11/16 in. (4.3 cm)
Weight 11.2 oz (0.32 kg)
BACnet support Conforms to the BACnet Advanced Application Controller (B-AAC) Standard Device
Profile as defined in ANSI/ASHRAE Standard 135-2012 (BACnet) Annex L,
Protocol Revision 9
Listed by UL-873, FCC Part 15-Subpart B-Class A, CE EN50082-1997
Disconnect electrical power to the RTU Open before wiring it. Failure to follow this warning could
cause electrical shock, personal injury, or damage to the controller.
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