Orion-system PT-Link II BACnet2 Manual do Utilizador descarregar pdf (Página 54)

PT-Link II BACnet

®

Technical Guide

PT-Link II Interface

54

BACnet Properties for the VCM Controller

Parameter Name Object Description Limits

Schedule

Force

SchdFrc AV: 66 0 = Auto/

Unoccupied Mode

1 = Forced On

2 = Forced Off

02

Space

Sensor

Offset

SpcTpOst AV: 71 If the Space

Temperature

Sensor is reading

incorrectly, you can

use this option to

enter an offset

temperature to

adjust the Sensor’s

Temperature.

-100 100

SAT/Reset

Source

Cooling

Setpoint

SaClSt AV: 77 Supply Air setpoint

or Reset Source tar-

get temperature in

Cooling Mode.

40 80

SAT/Reset

Source

Heating

Setpoint

SaHtSt AV: 78 Supply Air setpoint

or Reset Source tar-

get temperature in

Heating Mode.

40 200

Supply

Air Sensor

Offset

SaTpOst AV: 80 If the Supply Air

Temperature

Sensor is reading

incorrectly, you can

use this option to

enter an offset

temperature to

adjust the Sensor’s

Temperature.

-100 100

Unoccupied

Cooling

Offset

UnClOst AV: 124 During the

Unoccupied Mode

of Operation, this

Setpoint spreads

the Occupied

Cooling Setpoint

out by a user

adjustable amount.

If you do not want

Cooling to operate

during the

Unoccupied Mode,

use the default

setting of 30°F for

these setpoints.

030

Unoccupied

Heating

Offset

UnHtOst AV: 125 During the

Unoccupied Mode

of Operation, this

Setpoint spreads

the Occupied

Heating Setpoint

out by a user

adjustable amount.

If you do not want

Heating to operate

during the

Unoccupied Mode,

use the default

setting of 30°F for

these setpoints.

030

BACnet Properties for the VCM Controller

Parameter Name Object Description Limits

Dewpoint

Setpoint

DptSt AV: 13 If the outdoor

dewpoint rises

above this setpoint,

the unit will

activate the

Dehumidiﬁ cation

Demand.

35 80

Coil

Temperature

Setpoint

CoilTpSt AV: 107 This is the coil

suction temperature

target during

dehumidiﬁ cation

mode. Produces

dewpoint in the

supply air

approximately

10°F above this

setpoint.

35 70

Indoor

Humidity

Setpoint

InRhSt AV: 120 If the indoor

humidity rises

above this setpoint,

the unit will

activate the

Dehumidiﬁ cation

Demand.

0 100

Warm Up

Setpoint

WmupSt AV: 91 In a VAV

application, upon

entering the

occupied mode, the

Warm-up Demand

will be activated

if the return air

temperature falls

one degree below

this setpoint.

50 90

Wet Bulb

Setpoint

WtblSt AV: 92 The economizer is

enabled if the out-

door temperature or

wetbulb falls below

this setpoint.

080

Bad Supply

Air Sensor

SaTpAlm BI: 2 Alarm that

indicates a failure

in the

supply air sensor.

CO

2

Sensor

Installed

CO2Cfg BI: 3 Status that

indicates the CO

2

function has been

conﬁ gured.

Cooling

Demand

ClDmnd BI: 5 Status that

indicates a demand

for cooling.

Cooling

Enabled

ClEnbl BI: 6 Status that indicates

mechanical cooling

is enabled.

Economizer

Enabled

EcoEnbl BI: 15 Status that indicates

the economizer is

enabled.

Appendix H - VCM BACnet Parameters

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