Orion-system PT-Link II BACnet2 Uživatelský manuál stáhnout pdf (Strana 44)

PT-Link II BACnet

®

Technical Guide

PT-Link II Interface

44

Appendix F - VCM-X BACnet Parameters

BACnet Properties for the VCM-X Controller

Parameter Name Object Description

Limits

Warm Up

Setpoint

WmupSt AV: 91 In a VAV

application, upon

entering the oc-

cupied 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

outdoor tempera-

ture or wetbulb falls

below this setpoint.

080

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

Relief

Pressure

Setpoint

RfPrSt AV: 118 This is the target

building pressure

to be maintained

by the VFD Relief

signal.

-0.2 0.2

Indoor

Humidity

Setpoint

InRhSt AV: 120 If the indoor

humidity rises

above this setpoint,

the unit will acti-

vate the Dehumidi-

ﬁ cation Demand.

0 100

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-X Controller

Parameter Name Object Description

Limits

CO

2

Setpoint

CO2St AV: 149 When the CO

2

level rises above

the CO

2

Protection

Limit Max Level,

the Economizer’s

Minimum Position

will begin to reset

open proportionally

between the CO

2

Protection Limit

Max Level Setpoint

and the Reset

Range Setpoint.

0 3000

Minimum

Outside Air

Setpoint

MinEcoSt AV: 151 This is the

minimum position

of the economizer

in the occupied

modes.

1 100

Static

Pressure

Setpoint

DuctPrSt AV: 152 This is the target

duct pressure to be

maintained by the

VFD blower signal.

0.01 3

Preheater

Setpoint

PreHtSp AV: 196 Low Outside Air

Ambient

Protection Setpoint

0 100

Outdoor

Air CFM

Setpoint

OACfmSt AV: 203 Minimum desired

Outdoor Air CFM.

0.10

K

200 K

Outdoor Air

CFM Reset

Limit

OACfmRs AV: 204 Maximum desired

Outdoor Air CFM

when CO

2

reaches

its reset limit.

0.10

K

200 K

Supply Air

Cool High

Reset

SaClRt AV: 324 High Supply Air

Cooling Reset

Limit

40 150

Supply Air

Heat High

Reset

SaHtRt AV: 325 High Supply Air

Heating Reset Limit

40 150

Cooling

Low Reset

Source

ClLoRt AV: 326 Low Cool Reset

Source Setpoint

1 150

Cooling

High Reset

Source

ClHiRt AV: 327 High Cool Reset

Source Setpoint

1 150

Heating

Low Reset

Source

HtLoRt AV: 328 Low Heat Reset

Source Setpoint

1 150

Heating

High Reset

Source

HtHiRt AV: 329 High Heat Reset

Source Setpoint

1 150

Revised 4/3/13

1 2 ... 39 40 41 42 43 44 45 46 47 48 49 ... 59 60

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