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Appendix A: TV-VAVB3-E2 Points/Properties
TruVu™ VAVB3
-E2
CARRIER CORPORATION ©2022
Installation and Start-up Guide
All rights reserved
108
Point Name/Description
Range
Fan
–
The status of the terminal fan if
Term Type
is
Parallel Fan
or
Series Fan
.
R: On/Off
Space Relative Humidity
–
The current space relative humidity if
Service Configuration
>
Hardwired Sensor
is set to
RH Sensor
or, you have a valid ZS RH sensor.
R: 0 to 100%rh
Indoor Air Quality CO2 (ppm)
–
The current IAQ value if
Service Configuration
>
Hardwired Sensor
is set to
CO2 Sensor
or, you have a valid ZS CO
2
sensor.
R: 0 to 5000ppm
Shutdown
–
When
Active
, disables all control functions, at normal equipment time
delays and maintains minimum airflow.
D:
R:
Inactive
Inactive/Active
Hot Wtr Vlv 1 Cmd
- The current commanded position of the Act Net valve.
R: 0 to 100%
Hot Wtr Vlv 1 Pos
- The current position of the Act Net valve.
R: 0 to 100%
Unit Configuration
Navigation:
i-Vu® / Field Assistant:
Properties
>
Control Program
>
Configuration
>
Unit Configuration
Point Name/Description
Default/Range
Heat Enable
–
Enables the reheat function.
D:
R:
Enable
Disable/Enable
Parallel Fan Heat On Delay
–
Parallel type terminal only. The delay before reheat is
enabled after the zone has a heating demand. The terminal fan runs immediately and
attempts to meet the heating demand using the heated air from the ceiling plenum.
D:
R:
15 min
0 to 60 min
Fan Off Delay
–
Fan-type terminals only. The amount of time the terminal fan continues
to operate after a heating demand is satisfied.
D:
R:
120 seconds
0 to 180 seconds
Maximum Heating SAT
–
The maximum supply air temperature allowed while ducted
heat is operating. Ducted type supplemental heat is controlled so that it will not exceed
this limit or the configured
High SAT Alarm Limit
.
Set the
Maximum Heating SAT
limit to 5°F (2.8°C) above the desired maximum supply
air temperature you would expect. Refer to
Alarm Configuration
>
High SAT Alarm Limit
to properly set this parameter.
D:
R:
90°F (32.2°C)
80 to 140°F
(26.6 to 60°C)
Maximum RH Override Airflow
–
The maximum airflow allowed when the RH function
overrides the temperature control. When active, the damper modulates to the
temperature control requirement or the RH override airflow, whichever is greater. This
value is the percentage of the
Maximum Cooling Airflow Setpoint
.
D:
R:
60%
0 to 100%