Appendix d - vcm-x lon parameters, Pt-link-lon, Technical guide – Orion System PT-Link-LON User Manual

Page 24: Pt-link interface 24

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PT-Link-LON

®

Technical Guide

PT-Link Interface

24

Appendix D - VCM-X LON Parameters

SNVTs for the VCM-X Controller

Binary Output SNVTs are SNVT_lev_disc

all other SNVTs are SNVT_count_inc_f

Parameter

Name

Object

Description

Limits

Bad Supply

Air Sensor

SaTpAlm

Binary
Output

Alarm that

indicates a failure

in the

supply air sensor.

CO

2

Sensor

Installed

CO2Cfg

Binary
Output

Status that

indicates the CO

2

function has been

confi gured.

Cooling

Enabled

ClEnbl

Binary

Output

Status that indicates
mechanical cooling

is enabled.

Economizer

Enabled

EcoEnbl

Binary
Output

Status that indicates

the economizer is

enabled.

Fan Start Up

Delay

FanDly

Binary

Output

Status that indicates

the fan is

commanded to run,

but it is in the start

up delay mode.

Fan

Proving

Alarm

PofAlm

Binary
Output

Alarm that

indicates a failure

in the fl ow of the

VFD blower.

Heating

Enabled

HtEnbl

Binary

Output

Status that

indicates that

mechanical heating

is enabled.

High

Supply Air

Temperature

Alarm

HiSaAlm

Binary

Output

The Supply Air
has risen above

the Hi SAT Cutoff

Setpoint. Heating

stages begin to deac-

tivate and the fan

continues to run.

Low Supply

Air

Temperature

Alarm

LoSaAlm

Binary
Output

The Supply Air has

fallen below the Hi

SAT Cutoff Setpoint

and cooling stages

will begin to deacti-
vate. If the unit is in

Economizer, Vent,

or Heating Mode

the Supply Fan will

shut off.

MODGAS

II

Connected

MdHt2Ins

Binary
Output

Status that indicates

the MODGAS II

controller is

connected.

Proof of

Flow

Confi gured

PofCfg

Binary
Output

Status that indicates

the proof of fl ow

function has been

confi gured.

REHEAT II

Connected

Rt2Ins

Binary
Output

Status that indicates

the MHGRV
controllers is

connected to the

system.

SNVTs for the VCM-X Controller

Binary Output SNVTs are SNVT_lev_disc

all other SNVTs are SNVT_count_inc_f

Parameter

Name

Object

Description

Limits

Mechanical

Cooling

Alarm

MchClAlm

Binary
Output

Compressor Relays

are enabled but

the Supply Air

Temperature has

not fallen 5°F w/in

a user-adjustable

time period. This

does not indicate

compressors are

active and will not

shut the unit down.

Mechanical

Heating

Alarm

MchHtAlm

Binary
Output

Heating Mode has

been initiated but

the Supply Air

Temperature has

not risen 5°F w/in

a user-adjustable

time period. This

does not indicate

heat stages are

active and will not

shut the unit down.

Dirty Filter

Detected

DrtFlAlm

Binary
Output

Alarm that indicates

the fi lters are dirty.

Control

Temperature
Cool Failure

CtrlTpCF

Binary
Output

This alarm is

activated if the

control temperature

does not get within

5°F to the occupied

cooling setpoint

in an hour in the

cooling mode. This

alarm is not used

in 100% outside air

units or supply air

control.

Control

Temperature

Heat Failure

CtrlTpHF

Binary
Output

This alarm is

activated if the

control temperature

does not get within

5°F to the occupied

heating setpoint

in an hour in the

heating mode. This

alarm is not used

in 100% outside air

units or supply air

control.

Outdoor Air

Temperature

Lost

OaTpAlm

Binary
Output

Alarm that

indicates a failure

in the outdoor air

temperature.

Smoke

Detected

Alarm

SmokeAlm

Binary
Output

Alarm that indicates

the Smoke sensor

has been activated.

Space

Temperature

Sensor Lost

SpcTpAlm

Binary
Output

Alarm that indicates

a failure in the

space temperature

sensor.

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