Orion-system PT-Link II LON Manual do Utilizador descarregar pdf (Página 45)

PT-Link II Interface

PT-Link II LON

®

Technical Guide

45

Appendix E - 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

Supply Air

Cool High

Reset

SaClRt Analog

Input

High Supply Air

Cooling Reset

Limit

40 150

Supply Air

Heat High

Reset

SaHtRt Analog

Input

High Supply Air

Heating Reset

Limit

40 150

Cooling

Low Reset

Source

ClLoRt Analog

Input

Low Cool Reset

Source Setpoint

1 150

Cooling

High Reset

Source

ClHiRt Analog

Input

High Cool Reset

Source Setpoint

1 150

Heating

Low Reset

Source

HtLoRt Analog

Input

Low Heat Reset

Source Setpoint

1 150

Heating

High Reset

Source

HtHiRt Analog

Input

High Heat Reset

Source Setpoint

1 150

Warm Up

Setpoint

WmupSt Analog

Input

In a VAV

application, upon

entering the

occupied mode,

the Warm-up

Demand will be

activated if the

return air tem-

perature falls one

degree below this

setpoint.

Wet Bulb

Setpoint

WtblSt Analog

Input

The economizer is

enabled if the

outdoor tempera-

ture or wetbulb

falls below this

setpoint.

080

Coil

Temperature

Setpoint

CoilTpSt Analog

Input

This is the coil

suction tempera-

ture target during

dehumidiﬁ cation

mode. Produces

dewpoint in the

supply air

approximately

10°F above this

setpoint.

35 70

Relief

Pressure

Setpoint

RfPrSt Analog

Input

This is the target

building pressure

to be maintained

by the VFD Relief

signal.

-0.2 0.2

Indoor

Humidity

Setpoint

InRhSt Analog

Input

If the indoor

humidity rises

above this set-

point, the unit will

activate the

Dehumidiﬁ cation

Demand.

0 100

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

Unoccupied

Cooling

Offset

UnClOst Analog

Input

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 Analog

Input

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 Unoc-

cupied Mode, use

the default setting

of 30°F for these

setpoints.

030

CO

2

Setpoint

CO2St Analog

Input

When the CO

2

level rises above

the CO

2

Protection

Limit Max Level,

the Economizer’s

Minimum Position

will begin to reset

open proportion-

ally between the

CO

2

Protection

Limit Max Level

Setpoint and the

Reset Range

Setpoint.

0 3000

Minimum

Outside Air

Setpoint

MinEcoSt Analog

Input

This is the

minimum position

of the economizer

in the occupied

modes.

1 100

Static

Pressure

Setpoint

DuctPrSt Analog

Input

This is the target

duct pressure to

be maintained by

the VFD blower

signal.

0.01 3

Preheater

Setpoint

PreHtSp Analog

Input

Low Outside Air

Ambient

Protection

Setpoint

0 100

Revised 2/12/14

1 2 ... 40 41 42 43 44 45 46 47 48 49 50 ... 59 60

Comentários a estes Manuais

Sem comentários