Appendix A: VAV Zone II Points/Properties
VAV Zone II Controllers
CARRIER CORPORATION ©2019
Installation and Start-up Guide
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74
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 48) 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)
Occupied Heating 1
– Light Blue
The space temperature must be less than the
Occupied Heating
1
setpoint for the VVT Master to consider the zone a heating
caller in a linked system. In a single-zone application, the heating
requirement begins as soon as the space temperature falls
below the
Occupied Heating
setpoint. We recommend that the
Occupied Heating 1
value be set no less than 0.5 °F (.27 °C)
below the
Occupied Heating
setpoint.
69°F
(20.5°C)
68°F
(20°C)
67°F
(19.4°C)
65°F
(18.3°C)
Occupied Heating 2
– Dark Blue
The space temperature must be less than the
Occupied Heating
2
setpoint to generate a low space temperature alarm. We
recommend that this value be set no less than 0.5 °F (.27 °C)
below the
Occupied Heating 1
setpoint.
67°F (19.4°C)
66°F
(18.9°C)
65°F
(18.3°C)
63°F
(17.2°C)
Occupied Cooling 1
– Yellow
The space temperature must be greater than the
Occupied
Cooling 1
setpoint for the VVT Master to consider the zone a
cooling caller in a linked system. In a single-zone application, the
cooling requirement begins as soon as the space temperature
exceeds the
Occupied Cooling
setpoint. We recommend that the
Occupied Cooling 1
value be set no less than 0.5 °F (.27 °C)
above the
Occupied Cooling
setpoint.
77°F
(25°C)
78°F
(25.5°C)
79°F
(26.1°C)
81°F
(27.2°C)
Occupied Cooling 2
– Orange
The space temperature must be greater than the
Occupied
Cooling 2
setpoint to generate a high space temperature alarm.
We recommend that this value be set no less than 0.5 °F
(.27 °C) above the
Occupied Cooling 1
setpoint.
79°F
(26.1°C)
80°F
(26.6°C)
81°F
(27.2°C)
83°F
(28.3°C)
Содержание VAV Zone II
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