Setpoint Modifiers; Zatcontrlmodeenumeration (A190) Ro; Zone Temperature Alarms - ABB CBV-2U4-3T User Manual

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ZoneUnoccHeatStpt
ZoneUnoccCoolStpt
Default temperature setpoints are 71°F/75°F for the occupied mode heating/cooling and 65°F/85°F for the
unoccupied mode heating/cooling.

SETPOINT MODIFIERS

The Occupied setpoints may be modified by the position of the setpoint adjustment lever, load shed offset,
standby offset, etc. The effective setpoints the
EffCoolStpt
EffHeatStpt

ZATCONTRLMODEENUMERATION (A190) RO

The current control mode may be viewed or displayed using this point.
ZATContrlModeEnumeration (A190)
VALUE
0
1
2
4
8
16

ZONE TEMPERATURE ALARMS

If the zone temperature goes above the
DegreesAbvBlwSPAlarm
TempAlarmOnDelay
delay, an alarm will be generated.
Additionally, during a low temp alarm condition point
alarm condition
AlarmEncode
If the zone temperature sensor malfunctions and input 1 is reading above 100 or below 0, the controller will
go into local temp fault alarm.
will be enabled. The point set to on during this alarm condition is:
LocalTempSensorFault
When in this condition
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CBV-2U4-3T(-N) |
(A203)
(Unoccupied heating temperature setpoint)
(A202)
(Unoccupied cooling temperature setpoint)
(A183)
(Current Active Cooling Setpoint)
(Current Active Heating Setpoint)
(A182)
Deadband
Occupied Heating
Unoccupied Heating
Occupied Cooling
Unoccupied Cooling
Standby
EffCoolStpt
(A371) setpoint, default 2 degrees, then a delay timer will be started
(A373), default 60 minutes. If the zone temperature has not corrected before the time
(A41) will be set to 2.
CBV-2U4-3T(-N)
(D169)
on is zone temperature sensor fault, off is no fault
AlarmEncode
(A41) will be set to 16.
Control Sequence Overview
CBV-2U4-3T(-N)
will be controlling to are displayed by:
FUNCTION
(A183) or below the
AlarmEncode
(A41) will be set to 1. While in a high temp
will operate as it would in the deadband mode and no heating
EffHeatStpt
(A182) by the
49

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