Orion System PT-Link II BACnet3 - Manual (Page 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.