Orion System VAV II Controller v.1 - Manual (Page 54)

VAV/ZONE CONTROLLER PROGRAMMING
VAV/CAV/MUA Operator Interface SD 54
VAV/Zone Confi guration Screens
Confi guration Screen #3 - Voting Zone
XX Box Cnfg IDXXXX
Is This Box a
Voting Zone..: YES
Use < Or > To Change
Select YES if this is a Zoned System so that the box can be included
as a voting zone.
Confi guration Screen #4 - Pressure
Independent Airfl ow Constant
XX Box Cnfg IDXXXX
Pr Independent Boxes
Airflow @ 1” WG
Constant..: 1200 CFM
If this is a Pressure Independent Box, you must enter this airfl ow
constant so that the CFM readings can be correctly calculated. This
airfl ow constant is provided by the box manufacturer and depends on
the diameter of the duct.
Confi guration Screen #5 - Expansion Relays
Heating Stages
XX Box Cnfg IDXXXX
Expansion Relays
[Optional]
Steps of Reheat.: 2
If you require the VAV/Zone Controller to control reheat for the zone
it is installed in, you must include a relay expansion board and then
confi gure the number of heating stages (1, 2, or 3) that it will be control-
ling whenever there is a heating demand in the space. Enter
<0>
if you
don’t require this option.
Confi guration Screen #6 - Proportional
Heating Signal
XX Box Cnfg IDXXXX
Proportional Heating
Signal..: 0 - 10 VDC
Use < Or > To Change
Select 0-10 VDC or 2-10 VDC as the range of the proportional heat
output.
Confi guration Screen #7 - Box Heat Allow
XX Box Cnfg IDXXXX
Allow Box Heat With
HVAC Heat....: NO
Use < Or > To Change
Select YES to allow the Heating Relay’s Controlling Box Heat to remain
on even when the HVAC unit is in Supply Air Heating Mode. This is
used as a method to provide supplemental heat if for some reason the
HVAC heat cannot satisfy the heating demand.
Confi guration Screen #8 - Main Fan Status
XX Box Cnfg IDXXXX
This Unit Needs Main
Fan Status...: NO
Use < Or > To Change
This setting only applies to the unoccupied mode of operation. Select
YES 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
set to YES, the series box fan will only run when the main HVAC unit
fan is running or when a space heating demand is made. For series fan
terminal units, if this setting is set to NO, 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.
Confi guration Screen #9 - Push-Button
Override
XX Box Cnfg IDXXXX
Push-Button Override
Group ID #: 1
During Unoccupied Mode, all zones with a corresponding Group ID #
will resume Occupied operation whenever any of the zones in that group
has its push-button depressed to initiate an override condition. This al-
lows you to group zones in various areas of the building. For example,
individual tenants with several offi ces could restore occupied mode for
just their zones and not affect other zones in the building.
The default group ID number for all VAV/Zone Controllers is set at the
factory to 1. If you don’t want a specifi c zone(s) to be part of that group,
you must give each one a distinct Group ID number between 2 and 16.
Setting a zone’s Group ID number to 0 will disable the Space Sensor
Override Button function.
If you don’t want a specifi c zone to be a part of any group, enter <0>
for its Group ID #.