Orion-system HB Controller Manuel d'utilisateur télécharger pdf (Page 22)

Zone

Programming

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

levels are below the Minimum CO

setpoint

and then press the ENTER key.

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Orion-system HB Controller Manuel d'utilisateur Page 22

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