Orion-system PT-Link II LON Bedienungsanleitung PDF herunterladen (Seite 50)

PT-Link II LON

®

Technical Guide

PT-Link II Interface

50

Appendix F - SA Controller LON Parameters

SNVTs for the SA Controller

Binary Output SNVTs are SNVT_lev_disc

all other SNVTs are SNVT_count_inc_f

Parameter Name Object Description

Limits

Dewpoint

Setpoint

DptSt Analog

Input

If the outdoor

dewpoint rises above

this setpoint, the

unit will activate the

Dehumidiﬁ cation

Demand.

35 80

Occupied/

Mode

Enable

Cooling

Setpoint

OcpClSt Analog

Input

If the control

temperature rises one

degree above this

setpoint, the control

will activate the cool-

ing demand. If the

control temperature

is the Supply Air Sen-

sor, then the cooling

demand is always

active.

099

Occupied/

Mode

Enable

Heating

Setpoint

OcpHtSt Analog

Input

If the control

temperature drops

one degree below

this setpoint,

the control will

activate the heating

demand. If the

control temperature

is the Supply Air

Sensor, then there is

no heating demand.

99

Schedule

Force

SchdFrc Analog

Input

0 = Auto/

Unoccupied Mode

1 = Forced On

2 = Forced Off

02

Space

Sensor

Offset

SpcTpOst Analog

Input

If the Space

Temperature

Sensor is reading

incorrectly, you can

use this option to

enter an offset

temperature to

adjust the Sensor’s

Temperature.

-100 100

SAT

Cooling

Setpoint

SaClSt Analog

Input

Supply Air Setpoint

in Cooling Mode.

40 80

SAT

Heating

Setpoint

SaHtSt Analog

Input

Supply Air Setpoint

in Heating Mode.

40 200

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

SNVTs for the SA Controller

Binary Output SNVTs are SNVT_lev_disc

all other SNVTs are SNVT_count_inc_f

Parameter Name Object Description

Limits

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

Supply Air

Sensor Offset

SaTpOst Analog

Input

If the Supply Air

Temperature Sensor

is reading

incorrectly, you can

use this option to

enter an offset

temperature to

adjust the Sensor’s

Temperature.

-100 100

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

temperature falls

one degree below

this setpoint.

50 90

Coil

Temperature

Setpoint

CoilTpSt Analog

Input

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

Indoor

Humidity

Setpoint

InRhSt Analog

Input

If the indoor

humidity rises

above this setpoint,

the unit will

activate the

Dehumidiﬁ cation

Demand.

0 100

Unoccupied

Cooling

Offset

UnClOst Analog

Input

During the

Unoccupied Mode

of Operation, this

Setpoint spreads

the Occupied Cool-

ing 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

Revised 2/12/14

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