Vav/zone controller programming, Vav/zone setpoint screens, Vcm-x / rne operator interfaces technical guide 62 – Orion System VCM-X/RNE Operator Interfaces User Manual
Page 62

VAV/ZONE CONTROLLER PROGRAMMING
VCM-X / RNE Operator Interfaces Technical Guide
62
Setpoint Screen #11 - SAT HVAC Mode
Deadband
XX Box Spts IDXXXX
SAT HVAC Mode
Deadband.: XXºF
If the supply air temperature is above the space temperature by this
amount, the VAV/Zone Controller enters the Supply Air Heating Mode.
It will remain in the Supply Air Heating Mode until the supply air drops
to 2ºF above the space temperature. At that point the unit enters the
Supply Air Vent Mode and remains there until the supply air drops this
deadband below the space temperature. At that point the VAV/Zone
Controller enters the Supply Air Cooling Mode and will remain there
until the supply air temperature rises to 2ºF below the space temperature.
Description
Minimum
Default
Maximum
SAT HVAC Mode
Deadband
0ºF
10ºF
20ºF
Setpoint Screen #12 - Zone Alarm Offsets
XX Box Spts IDXXXX
Zone Alarm Offsets
Hi Zone......: XXºF
Lo Zone......: XXºF
The VAV/Zone Controller can be setup to generate an alarm anytime the
box goes into the Occupied Mode and the Zone Temperature exceeds
the user-defi ned alarm limits for a user-defi ned period of time. A High
Temperature Alarm Setpoint is created by adding the Hi Zone Alarm
offset to the current Cooling Setpoint. The Low Temperature Alarm
Setpoint is created by adding the Lo Zone Alarm offset to the current
Heating Setpoint. If the zone temperature exceeds either of these limits
for a period defi ned by the Alarm Delay setpoint, the controller can gen-
erate an alarm callout if all the optional hardware components required
for this to occur are installed.
Description
Minimum
Default
Maximum
Hi Zone Alarm
+1ºF
+30ºF
+50ºF
Lo Zone Alarm
-1ºF
-30ºF
-50ºF
Setpoint Screen #13 - Zone Alarm Delay
XX Box Spts IDXXXX
Zone Alarm Delay
Must Be Out Of
Limits For.: XXX Min
As mentioned above, if you confi gure the controller to generate zone
temperature alarms, this is the amount of time after the box goes into the
Occupied Mode that the temperature must be outside the alarm limits
before an alarm is generated.
Description
Minimum
Default
Maximum
Out of Limits
1 Min
30 Min
300 Min
Setpoint Screen #14 - Day/Night Schedule
XX Box Spts IDXXXX
Day/Night Schedule
Control #: X
0=AHU 1-5=Scheduler
This screen allows you to set the VAV/Zone Controller to operate on a
remote schedule instead of the schedule that is contained in the VCM-X
or RNE Controller. Enter
<0>
to operate on the AHU schedule. Enter
<1-
5>
to use an external schedule. A GPC Plus is required for schedules 1-5.
Description
Minimum
Default
Maximum
Schedule Control Number
0
0
1 to 5
Setpoint Screen #15 - Maximum Slide Offset
XX Box Spts IDXXXX
Maximum Slide Offset
Effect on Spt.: XºF
If the Flush Mount Wall Sensor has the optional Setpoint Slide Adjust,
this is the maximum amount you can adjust the heating and cooling
setpoints up or down as the slide is moved from the center position to
its full up or down position.
Description
Minimum
Default
Maximum
Effect on SP
0ºF
0ºF
6ºF
VAV/Zone Setpoint Screens