Orion-system VAV II Controller v.1 Instrukcja Użytkownika Pobierz pdf (Strona 29)

VAV/CAV/MUA Operator Interface SD

VAV/CAV CONTROLLER SETPOINTS

Conﬁ guration Screens #22-41 - Relay

Conﬁ guration Screens

VAV/CAV Cnfg ID 0001

Relay Configurations

Rly xx: Not Used

Use < Or > To Change

The 20 Relay screens allow you to set the 4 relays on the VAV/CAV

Controller and up to 16 additional relays when relay expansion board(s)

are used.

The ﬁ rst relay on the VAV/CAV Controller is always reserved for the

Supply Fan. Relays #2 through #21 can be individually conﬁ gured. by

pressing the left and right arrow keys to change the relay to the desired

conﬁ guration. This should be enough to handle up to 8 stages of Heating

and 8 stages of Cooling on large HVAC units. Only the Heating and Cool-

ing relays can be conﬁ gured with multiple outputs. If any other option

is selected more than once, it will simply activate redundant relays, but

no multiple staging will occur.

Available options are:

• Not Used • Pre-Heater

• Heat Stage • Reserved

• Cool Stage • Alarm Relay

• Warmup Mode • Override

• Rev Valve • Occupied

• Gas Re-Heat • Economizer

• Exhaust Fan

The VAV/CAV Controller does not require you to start conﬁ guring your

Heating or Cooling Stages ﬁ rst nor does it require that you utilize con-

secutive relays until all Heating or Cooling Stages have been deﬁ ned.

This method allows the greatest ﬂ exibility in the ﬁ eld, but it requires

close attention to the wiring of the Heating and Cooling Stages to prevent

incorrect and possibly harmful operation.

The controller assumes there will only be one relay conﬁ gured for

Morning Warm-Up Mode although it doesn’t prevent multiple relays

from being selected. Since this relay is used to send a signal to VAV

boxes to drive to their maximum airﬂ ow position, redundant relays are

not required.

VAV/CAV Conﬁ guration Screens

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 79 80

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Orion-system VAV II Controller v.1 Instrukcja Użytkownika Strona 29