Appendix A: VAV Zone II Points/Properties
VAV Zone II Controllers
CARRIER CORPORATION ©2019
Installation and Start-up Guide
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72
Point Name/Description
Default/Range
Setpoint Adjustment
– Enables or disables the setpoint adjustment mechanism on the
local space sensor.
D:
R:
Enable
Disable/Enable
Setpoint Adjustment Range
- The maximum amount that a user can adjust the setpoint
on the local ZS or SPT sensor.
D: 2 °F (1.1 °C)
Heating Lockout Temperature
– Supplemental reheat is disabled if outside air
temperature exceeds this value. Supplemental reheat is enabled when the outside air
temperature falls below a fixed hysteresis of 2 °F (1.1 °C). This function is active only
if there is a valid network outside air temperature.
D:
R:
70°F (21.1°C)
35 to 150°F
(1.6 to 65.5°C)
Power Fail Restart Delay
– How long the controller delays normal operation after the
power is restored. This is typically used to prevent excessive demand when recovering
from a power failure. Applies to Series Fan start delay when system mode transitions
from unoccupied to occupied. A delay of no greater than 120 seconds is recommended
for Series Fan applications.
D:
R:
60 seconds
0 to 600 seconds
Occupancy Schedules
– If
Enabled
, the controller stores and follows a schedule sent
over the network or programmed locally through a touchscreen or Field Assistant. If
Disabled
, the controller occupancy is controlled from the
BAS On/Off
or
System
Occupancy
network point.
D:
R:
Enable
Disable/Enable
Occ Override Delay
– The amount of time the controller remains occupied after the
remote occupancy switch returns to the unoccupied position.
D:
R:
15 minutes
0 to 240 minutes
T55 Override Duration
– The amount of time that the controller runs in the occupied
mode when a user presses the T55 sensor's override button for 1 to 10 seconds.
Pushbutton Override
must be set to
Enable
.
D:
R:
1 hr
1 to 4 hr
Local Sensor Calibration
Space Temperature
– The current space temperature.
R: -56 to 245°F
(-48.9 to 118.3°C)
Space Temp Calibration
– A calibration offset value to allow the local space
temperature sensor to be adjusted to match a calibrated standard measuring the
temperature in the same location.
D:
R:
0 °F/ °C
-9.9 to 10 °F
(-5.5 to 5.5 °C)
Содержание VAV Zone II
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