Orion-system PT-Link II BACnet3 Manual de usuario descargar pdf (Pagina 35)

PT-Link II BACnet3 Interface

7. PARAMETER TABLES

35

7.1 VCB-X BACnet Parameters

BACnet Properties for the VCB-X Controller

Param-

eter

Name Object Description

Limits

Digital

Compres-

sor Cutoff

DigCmpCf BI: 379 Occurs if the

digital compres-

sor discharge

temperature rises

above 268°F

or the sensor

is shorted. The

compressor is

disabled.

Digital

Com-

pressor

Lockout

DigCmpLk BI: 380 Occurs if ﬁ ve

Digital Compres-

sor Cutoffs

occur within

four hours. The

compressor will

be locked out.

Dirty Filter

Alarm

DrtFlAlm BI: 96 Alarm that

indicates the

ﬁ lters are dirty.

Economiz-

er Enabled

EcoEnbl AI: 15 Status that

indicates the

economizer is

enabled.

Economiz-

er Enable

Setpoint

EcoEnbSt AV:283 The economizer

is enabled if the

outdoor drybulb,

dewpoint, or

wetbulb temper-

ature falls below

this setpoint.

-30 80

Economiz-

er Position

EcoPos AI: 16 Current position

of the econo-

mizer damper.

Max

Economiz-

er in Heat

Mode

MaxEcoHt AV: 353 Max position

the Economizer

Damper can

open in the Heat-

ing Mode. Takes

priority over

Max Position in

High CO

2

.

0% 100%

Max

Econo-

mizer in

High CO2

Mode

MaxEcoCO AV: 354 The maximum

value the

Economizer

Minimum Posi-

tion can be reset

up to during CO

2

override.

0% 100%

Minimum

Econo-

mizer

Position

MinEcoSt AV: 151 Minimum

position of the

economizer in

the occupied

mode.

0 100

BACnet Properties for the VCB-X Controller

Param-

eter

Name Object Description

Limits

Force

Econo-

mizer

FrcEcono AV: 267 Overrides all

other Outdoor

Air Damper

position com-

mands so as to

maintain this

ﬁ xed position.

Conﬁ guring

for “Auto” will

restore normal

unit control of

the Outdoor Air

Damper/Econo-

mizer operation.

0% 100%

Auto=65535

Emergency

Heat

Enabled

EmHtEnbl BI: 364 Shows the Emer-

gency Heat is

enabled based on

the Compressor

Heating Lockout.

Exhaust

Fan CFM

EtCFM

AI:194 Current Exhaust

Airﬂ ow

Measurement

Missing

Exhaust

CFM

Sensor

ExtCfmSr BI: 371 Indicates that the

Exhaust CFM

Sensor is not

detected.

Exhaust

Fan Speed

EtFnSpd AI: 273 Current value of

the VFD relief

fan signal.

Missing

EM1

Expansion

Module

MisEM1 BI: 366 Indicates that the

EM1 Expansion

Module is not

communicating

with the VCB-X

Controller.

Fan

Starting

Delay

FanDly AI: 25 Indicates the

current fan status

related to request

to run, fan start-

ing delay or POF

failure.

0=No Request

1=Fan

Running

2=Fan Start

Delay

3=POF Failure

Leaving

H2O

Offset

LvH2OOst AV: 347 If the Leaving

Water Tempera-

ture Sensor is

reading incor-

rectly, use this to

enter an offset to

adjust the Sen-

sor’s Tempera-

ture.

-100 100

Water

Proof

of Flow

Failure

H2OProf BI: 382 Indicates no

Proof of Water

Flow.

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