Carrier Omnizone 50BVC Installation, Start-Up, Service And Controls Operation And Troubleshooting page 41

5. Connect the analog output wiring to the screw terminals on
the I/O Flex 6126 controller and to the controlled device
(Fig. 30).
Fig. 30 — Analog Output Diagram
6. Set the AO Mode Select jumper to the type of device the out-
put is being wired to.
7. Turn on the I/O Flex 6126 controller's power (Fig. 31).
I/O Flex EX8160 Expander Module
GENERAL DESCRIPTION
The I/O Flex EX8160 expander expands the input/output capabili-
ty of the I/O Flex 6126 controller. The I/O Flex 6126 controller
supports one I/O Flex EX8160 expander.
The I/O Flex EX8160 expander is mounted onto the I/O Flex 6126
controller enclosure.
The expander may also be mounted separately within the mount-
ing enclosure. Screw the I/O Flex EX8160 expander into an en-
closed panel using the mounting holes provided on the cover plate.
Be sure to leave about 2 inches (5 centimeters) on each side for
wiring. Connect the I/O Flex EX8160 expander to the I/O Flex
6126 controller before applying power to either one. See Fig. 32.
Connecting I/O Flex EX8160 Expander and I/O Flex 6126
Controller
1. Turn off the power to both the I/O Flex EX8160 expander
and the I/O Flex 6126 controller.
2. Wire the screw terminals connecting each devices' XNET
Remote Expansion connector.
3. Turn on the power to both the I/O Flex EX8160 expander and
the I/O Flex 6126 controller.
VAV Control Parameters, Status, and Alarms
Control
• Integral occupancy schedule
• External occupancy control: Manual ON, BAS command,
or DI Enable
• Supply Fan and VFD control
• Compressor 1 control
• Compressor 2 control
• Compressor 3 control
• Compressor 4 control
• Unit Enable manual control (optional)
• Modulating HGRH control
• Condenser water valve control
• Waterside Economizer control
• Outdoor Air Damper (OAD) control (enable)
• Return Fan control (enable)
Status
• Cooling control status
• Cooling demand percentage (0 to 100%)
• Supply air temperature
• Return air temperature
• Leaving water temperature
• Entering water temperature
• Fan-Hours runtime counter (filter replacement indicator)
• Fan starts counter
• Compressor 1 starts counter
• Compressor 2 starts counter
• Compressor 3 starts counter
• Compressor 4 starts counter
Alarms
• Leaving water temperature high/low trip
• Discharge air temperature high/low trip
• Entering water temperature high/low trip
• Sensor failure alarm
• Unit filter runtime trip (optional)
• Comp 1 runtime trip
• Comp 2 runtime trip
• Comp 3 runtime trip
• Comp 4 runtime trip
• Freeze stat sensor UPM alarm (optional)
• Low pressure sensor UPM alarm
• High pressure sensor UPM alarm
• Low pressure sensor UPM alarm
• High pressure sensor UPM alarm
• Condensate overflow UPM alarm
• High/low voltage UPM alarm
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