Orion System HB Controller - Manual (Page 22)

Zone
Zone
Programming
22 HB Controller Technical Guide
Programming with the HB Service Tool
Outdoor Air Temperature
Line #2 displays the current Outdoor Air Temperature.
Fan Status
Line #2 displays the current Supply Fan status. If the Supply Fan is on,
line #2 displays either “Fan Low Speed” or “Fan High Speed.”
Fan Signal
Line #2 displays the current Supply Fan Analog Output Signal in DC
Volts.
Exhaust Fan Relay
Line #2 displays “ON” when the Exhaust Fan Relay is active.
Carbon Dioxide Level
Line #2 displays the Current Carbon Dioxide levels, given in parts per
million.
Economizer Change Over Switch
Line #2 displays “CLOSED” if there is a 24 VAC signal on the Econo-
mizer Changeover Switch input. This signal is provided by an Enthalpy
controller to enable the economizer for free Cooling.
Economizer Module Setpoint Screens
The Economizer Module Setpoint Screens are accessed by navigating
to the Economizer Module and then pressing the ENTER key. The fol-
lowing screen will then appear:
Press the down SELECT arrow key until “Setpoints” is on the top line
of the screen and then press the ENTER key. Press the up and down
SELECT arrow keys to move forward and backward through the Econo-
mizer Module Setpoint screens.
Economizer Confi guration
Description Min. Default Max.
Outdoor Air Enable Temp 33ºF 55ºF 65ºF
Select either “Has Economizer” or “No Economizer” and then press the
ENTER key. The value must be greater than the OAT Lockout.
.
Outdoor Air Temperature Enable
Description Min. Default Max.
Outdoor Air Enable Temp 33ºF 55ºF 65ºF
Adjust the Outdoor Air Temperature to enable Economizer Free Cooling
and then press the ENTER key.
OAT Changeover to Mechanical Cooling
Description Min. Default Max.
ECS OAT Enable Temp 55ºF 65ºF 75ºF
Adjust the Outdoor Air Temperature that will allow supplemental Me-
chanical Cooling during ECS Economizer operation and then press the
ENTER key.
CO2 Minimum Position with Low-Speed Fan
Description Min. Default Max.
Min. with Low-Speed Fan 0% 10% 100%
Adjust the Economizer Minimum Position during Low-Speed Supply
Fan operation when CO
2
levels are below the Minimum CO
2
setpoint
and then press the ENTER key.