Orion System OE392-10 System Manager TS - Manual (Page 52)

Zone
Zone
VAV/Zone Controllers
SMTS Technical Guide 52
VAV/Zone Confi guration
Touch the
< Confi guration>
button to access the
Confi guration Setpoints Screens.
Box Confi guration
Touch the radio button that pertains to your type of box—single duct
cooling only, heating/cooling changeover, series fan powered, or paral-
lel fan powered.
Proportional Heat [2-10 vdc]
Touch the square if this unit has 2-10 vdc proportional heat. Leave blank
for 0-10 vdc operation.
This Box Needs the Main Fan Status
Touch the square if this unit needs Main Fan status. This setting only
applies to the unoccupied mode of operation. Choose this setting to
activate the heating stages only when the main fan is operating on non-
fan terminal units.
For series fan terminal units, if this setting is selected, the series box fan
will only run when the main HVAC unit fan is running or when a space
heating demand is made. If this setting is NOT selected, the series box
fan will only run when a space heating demand is made. This setting
has no effect on the parallel fl ow fan terminal unit.
Damper is Reverse Acting [Opens CCW]
Touch the square if this unit’s damper is reverse acting (opens counter-
clockwise).
Voting Zone on Zoned Systems
Touch the square if this unit is a voting zone.
Allow Box Heat to remain on in HVAC Heat Mode
Touch the square to have box heat remain on in HVAC heat mode. This
will allow the Heating Relay’s Controlling Box Heat to remain on even
when the AHU is in Supply Air Heating Mode. This is used as a method
to provide supplemental heat if for some reason the AHU heat cannot
satisfy the heating demand.
No Air Valve Control [ Dump Zone]
A Dump Zone is used when you want to control a duct heater or base-
board heater independently. A VAV/Zone Controller board with a relay
expansion board is used for this purpose. No damper or actuator is used.
Touch the square if this unit has no air valve control (Dump Zone). If
you need to control an auxiliary heater, do not select this option.
Use Broadcast from HVAC Unit on Separate Loop
Touch the square if this unit is installed on a system with one HVAC
unit having multiple VAV loops.
VAV/Zone Confi guration & Temperature Setpoints
Temperature Setpoints
Touch the
< Temperatures>
button to access the
Temperature Setpoint Screens.
Occupied Cooling Setpoint
This is the Cooling Mode Space Temperature maintained during Oc-
cupied hours Override periods. Enter the Occupied Cooling Setpoint
as the maximum temperature you would like the zone to reach before
modulating the damper open to bring in more cold air to cool the space.
High limit = 90ºF; Low limit = 50ºF
Occupied Heating Setpoint
This is the Heating Mode Space Temperature maintained during Oc-
cupied hours or Override periods. Enter the Occupied Heating Setpoint
as the minimum temperature you would like the zone to reach before
activating the Reheat Stages on the optional Expansion Relay board. If
this is a Cooling Only box that doesn’t contain reheat, this setpoint will
be ignored. High limit = 90ºF; Low limit = 50ºF
Unoccupied Cooling Offset
During Unoccupied hours, the Cooling Setpoint is adjusted up by this
amount. High limit = 30ºF; Low limit = 0ºF
Unoccupied Heating Offset
During Unoccupied hours, the Heating Setpoint is adjusted down by
this amount. High limit = 0ºF; Low limit = -30ºF
Maximum Sensor Slide Adjust
If the Optional Slide Offset is available on the wall sensor, this is the
maximum amount that the Heat/Cool Setpoints can be adjusted up or
down as the slide is moved from the center position to its full up or down
position. High limit = 5ºF; Low limit = 0ºF
EMS Setpoint Offset
If the Energy Management Mode (EMS) is activated, the heat and cool
setpoints can be spread apart by this amount. High limit = 10ºF; Low
limit = 0ºF
AHU Heating Call Setpoint
If the Space Temperature drops below this setpoint by 0.5 degrees, a call
for heat to the HVAC unit is broadcast from the VAV/Zone box. This only
occurs in the Unoccupied Mode. High limit = 90ºF; Low limit = 50ºF
SAT HVAC Mode Deadband
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 2º above the space temperature. At that point the unit enters the Sup-
ply 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 2º below the Space Tempera-
ture. High limit = 20ºF; Low limit = 2ºF
Temps Config