Appendix C: RTU Open Points/Properties on the Equipment Touch
RTU Open v3
CARRIER CORPORATION ©2019
Installation and Start-up Guide
All rights reserved
98
Point Name/Description
Range
Supply Fan VFD
– The current commanded output to the VFD to control the fan's speed
if
Fan Control
is set to
Variable Speed
.
R: Off/Low/High
Space Temperature
- Prime Variable
– The space temperature value currently used for
control.
R: -56 to 245°F
(-48.9 to 118.3°C)
Supply Air Temperature
– Displays the current supply air temperature.
R: -56 to 245°F
(-48.9 to 118.3°C)
Outdoor Air Temperature
– The outdoor air temperature used for control.
R: -56 to 245°F
(-48.9 to 118.3°C)
Space Relative Humidity
– The current space relative humidity if a valid value exists
either as a connected ZS sensor with RH or a hardware sensor connected to this
controller (
Configuration
>
Unit Configuration
>
Input 1
(or
2
)
Function
is set to
IAQ
Sensor
)
or a value received through the Network or Linkage.
R: 0 to 100%rh
Indoor Air Quality CO2 (ppm)
– The current space CO
2
concentration if a valid value
exists either as a connected ZS sensor with CO2 or a hardware sensor connected to this
controller (
Configuration
>
Unit Configuration
>
Input 1
(or
2
)
Function
is set to
IAQ
Sensor)
or a value received through the Network or Linkage.
R: 0 to 5000ppm
Outdoor Air Quality CO2 (ppm)
– The current outdoor air CO
2
concentration if the
Configuration
>
Unit Configuration
>
Input 1
(or
2
)
Function
is set to
OAQ Sensor
.
R: 0 to 5000ppm
Economizer Output
– The current economizer output with respect to the outdoor air
damper (if equipped).
R: 0 to 100% Open
Shutdown
– When
Active
, all alarms are reset. (Any currently active alarms will continue
to display.) Provides a means to stop heating and cooling in an orderly manner.
D:
R:
Inactive
Inactive/Active
Unit Configuration - Equipment Touch
Navigation:
Equipment Touch:
Unit Configuration
Point Name/Description
Range
Fan Mode
– The supply fan's operating mode.
Options:
Auto
- The fan cycles on/off in conjunction with heating or cooling.
Continuous
- The fan runs continuously during occupancy and intermittently during
unoccupied periods with heating or cooling.
Always On
- The fan runs continuously regardless of occupancy or calls for heating and
cooling.
D:
R:
Continuous
Auto
Continuous
Always On
Power Fail Restart Delay
– How long the controller delays normal operation after the
power is restored. Typically used to prevent excessive demand when recovering from a
power failure.
D:
R:
5 sec
0 to 30 sec
Fan Off Delay
– The number of seconds that the fan continues to run after heating or
cooling has ended.
D:
R:
90 seconds
10 to 300
Summary of Contents for RTU Open v3
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