Programming the vav/zone controller – Orion System VCM User Manual
Page 42
Technical Guide
Operator Interfaces
42
Programming The VAV/Zone Controller
Configuration Screen #7
HC Box Cnfg IDxxxx
Proportional Heating
Signal..: 0 - 10 VDC
[0 = 0-10 1 = 2-10]
Select this option to change the range of the proportional heat output
from 0-10 VDC to 2-10 VDC.
Configuration Screen #8
HC Box Cnfg IDxxxx
Allow Box Heat With
AHU Heat....: NO
[0=NO 1=YES]
Set this option to 1 = YES to allow the heating relays 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 rea-
son the AHU heat cannot satisfy the heating demand
Configuration Screen #9
HC Box Cnfg IDxxxx
This Unit Needs Main
Fan Status...: NO
[0=NO 1=YES]
This setting only applies to the unoccupied mode of operation. Select
1=YES to activate the heating stages only when the main fan is operat-
ing on non fan terminal units. For series fan terminal units if this set-
ting is set to 1=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 0=NO the series box fan
will only run when a space heating demand is made. This setting has no
effect on the parallel flow fan terminal unit.
Configuration Screen #10
HC 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 offices could restore occupied mode for
just their zones and not affect other zones in the building.
If you don’t want a specific zone to be a part of any group, enter a ‘0’
for its Group ID #.
Configuration Screen #11
HC Box Cnfg IDxxxx
Is This A Dump Zone
(No Actuator): NO
[0=NO 1=YES]
A “Dump Zone” is used when you want to control a duct heater or
baseboard heater independently. A VAV/Zone Controller board with a
relay expansion board is used for this purpose. No damper or actuator
is used. If you need to control an auxiliary heater select 1=YES other-
wise be sure it is set to 0=NO.