Orion-system PT-Link II BACnet2 Uživatelský manuál stáhnout pdf (Strana 53)

PT-Link II Interface

PT-Link II BACnet

®

Technical Guide

53

Appendix H - 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.

099

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.

099

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

1 2 ... 48 49 50 51 52 53 54 55 56 57 58 59 60

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