Carrier VAV Zone II, Installation And Startup Manual

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Appendix A: VAV Zone II Points/Properties
VAV Zone II Controllers CARRIER CORPORATION ©2019
Installation and Start-up Guide All rights reserved
75
Unoccupied Setpoints
Point Name/Description Default/Range
Unoccupied Heating – Gray
The heating setpoint the controller maintains while in unoccupied mode.
D:
R:
55°F (12.7°C)
40 to 90°F
(4.4 to 32.2°C)
Unoccupied Cooling – Gray
The cooling setpoint the controller maintains while in unoccupied mode.
D:
R:
90°F (32.2°C)
45 to 99°F
(7.2 to 37.2°C)
Unoccupied Heating 1 – Light Blue
The space temperature must be less than the Unoccupied Heating 1 setpoint for the
VVT Master to consider the zone an unoccupied heating caller in a linked system. In a
single-zone application, the unoccupied heating requirement begins as soon as the
space temperature falls below the
Unoccupied Heating setpoint. We recommend that
the Unoccupied Heating 1 value be set no less than 0.5 °F (.27 °C) below the
Unoccupied Heating setpoint.
D:
R:
54°F (12.2°C)
40 to 90°F
(4.4 to 32.2°C)
Unoccupied Heating 2 – Dark Blue
The space temperature must be less than the Unoccupied Heating 2 setpoint to
generate an unoccupied low space temperature alarm. We recommend that this value
be set no less than 0.5 °F (.27 °C) below the
Unoccupied Heating 1 setpoint.
D:
R:
52°F (11.1°C)
40 to 90°F
(4.4 to 32.2°C)
Unoccupied Cooling 1 – Yellow
The space temperature must be greater than the Unoccupied Cooling 1 setpoint for the
VVT Master to consider the zone an unoccupied cooling caller in a linked system. In a
single-zone application, the unoccupied cooling requirement begins as soon as the
space temperature exceeds the
Unoccupied Cooling setpoint. We recommend that the
Unoccupied Cooling 1 value be set no less than 0.5 °F (.27 °C) above the
Unoccupied Cooling setpoint.
D:
R:
91°F (32.7°C)
45 to 99°F
(7.2 to 37.2°C)
Unoccupied Cooling 2 – Orange
The space temperature must be greater than the Unoccupied Cooling 2 setpoint to
generate an unoccupied high space temperature alarm. We recommend that this value
be set no less than 0.5 °F (.27 °C) above the
Unoccupied Cooling 1 setpoint.
D:
R:
93°F (33.9°C)
45 to 99°F
(7.2 to 37.2°C)
Point Name/Description Default/Range
Heating Capacity – Used for Optimal Start, this is the rate at which the zone
temperature changes when the heating system runs at full capacity to maintain
designed occupied heating setpoint.
D:
R:
3 °F (1.6 °C)/hr
0 to 120 °F
(0 to 66.6 °C)/hr
Heating Design Temp – The geographically-based outdoor air temperature at which the
heating system must run constantly to maintain comfort. This information is available in
ASHRAE publications and most design references.
D:
R:
0°F/C
-100 to 150°F
(-73.3 to 65.5°C)
Cooling Capacity – Used for Optimal Start, this is the rate at which the zone
temperature changes when cooling system runs at full capacity to maintain designed
occupied cooling setpoint.
D:
R:
3 °F (1.6 °C)/hr
0 to 140 °F
(0 to 77.7 °C)/hr