Appendix A: VAV Zone Controller Points/Properties
Setpoints
Navigation:
i-Vu® / Field Assistant:
BAC
view
®:
Properties
>
Equipment
>
Configuration
>
Setpoints
HOME
>
CONFIG
>
SETPOINT
Select a color band on the setpoint graph to see the current setpoints in the
Heating
and
Cooling
fields. The values in this
graphic are Fahrenheit. See setpoint descriptions below.
Occupied Setpoints
The occupied setpoints described below are the setpoints under normal operating conditions. The Demand Level 1–3
setpoints apply if demand limiting is used.
Demand limiting is a cost-saving strategy to reduce energy consumption. The strategy expands the occupied heating and
cooling setpoints when the system reaches one of 3 levels of consumption. With the expanded setpoints, the equipment
works less, thereby saving
energy. By default, Demand Level 1 expands the occupied heating and cooling setpoints by 1∆°F
(∆.5°C), Demand Level 2 by 2∆°F (1.1∆°C), and Demand Level 3 by 4∆°F (2.2∆°C). If the occupied heating or cooling
setpoints change, the (effective) demand level setpoints automatically change by the same amount. See
Sequence of
Operation
(page 38) for more information.
Default
Range:
-40 to 245°F (-40 to 118.3°C)
Demand Level
Point Name/Description
Occupied
1
2
3
Occupied Heating
– Green
The heating setpoint the controller maintains while in occupied
mode.
D:
R:
70°F
(21.1°C)
40 to 90°F
(4.4 to
32.2°C)
69°F
(20.5°C)
68°F
(20°C)
66°F
(18.9°C)
Occupied Cooling
– Green
The cooling setpoint the controller maintains while in occupied
mode.
D:
R:
76°F
(24.4°C)
55 to 99°F
(12.7 to
37.2°C)
77°F
(25°C)
78°F
(25.5°C)
80°F
(26.6°C)
54
VAV Zone Controllers
