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Parameter tables, 7 vcm bacnet parameters, Pt-link ii bacnet3 interface – Orion System PT-Link II BACnet3 User Manual

Page 59: Bacnet properties for the vcm controller

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PT-Link II BACnet3 Interface

7. PARAMETER TABLES

59

7.7 VCM BACnet Parameters

BACnet Properties for the VCM Controller

Parameter

Name

Object

Description

Limits

Bypass

Damper
Position

ByPasDmp

AI: 153

Current position

of the bypass

damper signal.

Return

Damper
Position

RaDmp

AI: 154

Current position

of the return

damper signal.

Outdoor Air

Dewpoint

OaDwpt

AI: 47

Current calcu-

lated outdoor air

dewpoint added

on version 1.09.

Current

Supply Air

Setpoint

SaTpStM

AI: 82

Current SAT

Cooling or Heat-

ing setpoint if

there is no reset

source; Current

calculated SAT

setpoint with

Reset Source.

Coil

Temperature

CoilTp

AI: 181

Current coil
temperature

reading added on

version 1.09.

Preheater

Setpoint

PreHtSp

AV: 196

Low Outside Air

Ambient

Protection

Setpoint

0

100

CO

2

Setpoint

CO2St

AV: 149

When the CO

2

level rises

above the CO

2

Protection Limit

Max Level, the

Economizer’s

Minimum Posi-

tion will begin

to reset open

proportion-

ally between the

CO

2

Protection

Limit Max Level

Setpoint and

the Reset Range

Setpoint.

0

3000

Static

Pressure
Setpoint

DuctPrSt

AV: 152

This is the target

duct pressure to

be maintained by

the VFD blower

signal.

0.01

3

Minimum

Outside Air

Setpoint

MinEcoSt

AV: 151

This is the

minimum

position of the

economizer in

the occupied

modes.

1

100

BACnet Properties for the VCM Controller

Parameter

Name

Object

Description

Limits

Occupied/

Mode

Enable

Cooling

Setpoint

OcpClSt

AV: 42

If the control

temperature rises

one degree above

this setpoint,

the control will

activate the

cooling demand.

If the control

temperature is

the Supply Air

Sensor, then the
cooling demand

is always active.

0

99

Occupied/

Mode

Enable

Heating

Setpoint

OcpHtSt

AV: 43

If the control

temperature

drops one degree

below

this setpoint,

the control will

activate the

heating demand.

If the

control

temperature

is the Supply

Air Sensor, then

there is no heat-

ing demand.

0

99

Outdoor Air

Sensor Offset

OaTpOst

AV: 53

If the Outdoor

Temperature

Sensor is reading

incorrectly, you
can use this op-

tion to

enter an offset

temperature to

adjust the Sen-
sor’s Tempera-

ture.

-100

100

Relief

Pressure
Setpoint

RfPrSt

AV: 118

This is the target

building pressure

to be maintained

by the VFD

Relief signal.

-0.2

0.2

Return Air

Sensor Offset

RaTpOst

AV: 65

If the Return

Temperature

Sensor is read-

ing incorrectly,

you can use this

option to enter

an offset tem-

perature to adjust

the Sensor’s

Temperature.

-100

100

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