Vav/zone controllers, Vcb-x relays setpoints, Smts technical guide – Orion System OE392-10 System Manager TS User Manual

Page 49

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SMTS Technical Guide

VAV/Zone Controllers

49

No. Relay Description

Details

1

Digital Compressor

Confi gured for a Digital Compressor.

2

Cooling Stage

Confi gured for each fi xed stage of cooling (except heat pump compressor).

3

Condenser

Confi gured for Condenser Fan or Condenser Water Valve operation. This relay will be active anytime
a compressor is active, except if this is an air to air heat pump in the Heat Pump Defrost Mode.

4

Heating Stage

Confi gured for each fi xed stage of heating.

5

Heat Pump Compressor

Confi gured for a Fixed Heat Pump Compressor stage.

6

Reversing Valve

Confi gured for the Reversing Valve of a heat pump unit.

7

Aux Heat

Confi gured for a fi xed stage of Aux Heat in a heat pump unit.

8

Emergency Heat

Confi gured for a fi xed stage Emergency Heat in a heat pump unit.

9

Mod Heat Enable

Confi gure if a 0-10 VDC Modulating Heat source needs a relay to enable it.

10

Mod Cool Enable

Confi gure if a 0-10 VDC Modulating Cool source needs a relay to enable it.

11

Pre-Heat

Confi gure this relay for Pre-Heat operation. See Pre-Heat Sequence for details.

12

Low Ambient

Confi gure this relay for Low Ambient operation. See Low Ambient Sequence for details.

13

Economizer Active

If confi gured, this relay will energize when the unit is in the Economizer Mode.

14

Occupied Active

If confi gured, this relay will energize whenever the unit is in the Occupied Mode.

15

Override Active

If confi gured, this relay will energize anytime the space sensor Pushbutton override is active.

16

Alarm Active

If confi gured, this relay will energize anytime a VCB-X alarm is active.

17

Morning Warm-Up
(VAV Boxes)

Confi gure (1) Relay for Morning Warm-Up when Non-Orion VAV/Zone Controllers are used.

18

Reheat Confi gure (1) Relay for On/Off Reheat when used.

19

Exhaust Fan

Confi gure (1) Relay for enabling exhaust fan when Building Pressure Control is used.

20

Heat Wheel

Confi gure (1) Relay that turns heat wheel on when in occupied operation and turns heat wheel off
when in Economizer Mode.

Table 7: User-Confi gurable Relay Outputs

VCB-X Relays Setpoints

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