Table of Contents
Advertisement
Unoccupied Setpoints
Point Name/Description
Unoccupied Heating – Gray
The heating setpoint the controller maintains while in unoccupied mode.
Unoccupied Cooling – Gray
The cooling setpoint the controller maintains while in unoccupied mode.
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.
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.
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.
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.
Point Name/Description
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.
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.
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.
VAV Zone II Controllers
Installation and Start-up Guide
Appendix A: VAV Zone II Points/Properties
75
Default/Range
D:
55°F (12.7°C)
R:
40 to 90°F
(4.4 to 32.2°C)
D:
90°F (32.2°C)
R:
45 to 99°F
(7.2 to 37.2°C)
D:
54°F (12.2°C)
R:
40 to 90°F
(4.4 to 32.2°C)
D:
52°F (11.1°C)
R:
40 to 90°F
(4.4 to 32.2°C)
D:
91°F (32.7°C)
R:
45 to 99°F
(7.2 to 37.2°C)
D:
93°F (33.9°C)
R:
45 to 99°F
(7.2 to 37.2°C)
Default/Range
D:
3 °F (1.6 °C)/hr
R:
0 to 120 °F
(0 to 66.6 °C)/hr
D:
0°F/C
R:
-100 to 150°F
(-73.3 to 65.5°C)
D:
3 °F (1.6 °C)/hr
R:
0 to 140 °F
(0 to 77.7 °C)/hr
CARRIER CORPORATION ©2019
All rights reserved
Hide quick links:
Advertisement
Table of Contents
