Orion-system PT-Link II BACnet3 Manual do Utilizador descarregar pdf (Página 40)

Zone

Zone

7. PARAMETER TABLES

PT-Link II BACnet3 Interface

40

BACnet Properties for the VCB-X Controller

Param-

eter

Name Object Description

Limits

Supply Air

Tempera-

ture Offset

SaTpOst AV:80 If the Supply Air

Temperature

Sensor is reading

incorrectly, use

this offset to ad-

just the Sensor’s

Temperature.

-100 100

Current

Supply Air

Tem-

perature

Setpoint

SaTpStM AI: 82 Current SAT

Cooling or

Heating

setpoint if there

is no reset

source;

Current cal-

culated SAT

setpoint with

Reset Source.

Cooldown

Mode

Supply Air

Setpoint

SaCldnSt AV: 362 Cooling will be

controlled to

this Supply Air

Setpoint during

Cool-Down.

30 80

Missing

Supply

Air CFM

Sensor

SaCfmSr BI: 372 Indicates the

Supply Air CFM

Sensor is not

detected.

Warmup

Mode

Supply Air

Setpoint

SaWmupSt AV: 361 Heating will be

controlled to

this Supply Air

Setpoint during

Morning Warm-

Up.

40 240

SZ VAV

Integral

Constant

SZVAVFnl AV: 360 This is the

Integral Constant

for controlling

the SZ VAV Fan

Speed.

010

Title 24

Econo-

mizer

Feedback

T24EcFb AI: 384 Current position

of feedback from

Economizer

actuator.

Title 24

Sensor

Alarm

T24TpAlm BI: 385 Outside Air

or Supply Air

Temperature

Sensor is shorted

or missing.

Title

24 Not

Economiz-

ing When

It Should

T24NEWS BI: 386 Economizer is

enabled but not

following the

desired Econo-

mizer position

commanded.

Title 24

Economiz-

ing When

It Should

Not

T24EWISN BI: 387 Economizer is

not enabled but

the feedback

signal indicates

a position more

open than the

minimum.

BACnet Properties for the VCB-X Controller

Param-

eter

Name Object Description

Limits

Title 24

Damper

Failure

T24DpAlm BI: 388 Economizer is

enabled but not

within 10% of

desired position

within 150

seconds.

Title 24

Excess

Outdoor

Air

T24ExsOA BI: 389 Economizer

feedback is lost

or Economizer

is not follow-

ing commanded

position.

Unoc-

cupied

Cooling

Offset

UnClOst AV: 124 In Unoccupied

Mode, this

offsets the

Occupied Cool-

ing Setpoint by

this user adjust-

able amount. If

no Unoccupied

Cooling is

desired, use the

default setting

of 30°F for this

setpoint.

030

Unoc-

cupied

Heating

Offset

UnHtOst AV:125 In Unoccupied

Mode, this

offsets the

Occupied Heat-

ing Setpoint by

this user adjust-

able amount. If

no Unoccupied

Heating is

desired, use the

default setting

of 30°F for this

setpoint.

030

VFD

Position

VfdBwPos AI:88 Current

position of the

VFD blower fan

signal.

VFD Min

Position in

Cool Mode

VFDClMin AV: 319 In Single Zone

VAV conﬁ gura-

tion, this is the

fan speed at

which the VFD

will start when

Cooling is

initiated. In a

VAV conﬁ gura-

tion this is the

lowest fan speed

allowed in the

Cooling Mode.

In CAV and

MUA conﬁ gura-

tions this should

be set to 100%.

0% 100%

7.1 VCB-X BACnet Parameters

1 2 ... 35 36 37 38 39 40 41 42 43 44 45 ... 71 72

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