Orion System PT-Link II BACnet2 - Manual (Page 55)

PT-Link II Interface
PT-Link II BACnet ® Technical Guide
55
BACnet Properties for the VCM Controller
Parameter Name Object Description Limits
Fan Start Up
Delay
FanDly BI: 25 Status that indicates
the fan is
commanded to run,
but it is in the start
up delay mode.
Fan
Proving
Alarm
PofAlm BI: 26 Alarm that
indicates a failure
in the fl ow of the
VFD blower.
Heating
Demand
HtDmnd BI: 29 Status that indicates
a demand for
heating.
Heating
Enabled
HtEnbl BI: 30 Status that
indicates that
mechanical heating
is enabled.
High
Supply Air
Temperature
Alarm
HiSaAlm BI: 33 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 BI: 37 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 BI: 39 Status that indicates
the MODGAS II
controller is
connected.
Proof of
Flow
Confi gured
PofCfg BI: 57 Status that indicates
the proof of fl ow
function has been
confi gured.
REHEAT II
Connected
Rt2Ins BI: 58 Status that indicates
the MHGRV con-
trollers is connected
to the system.
Warm Up
Mode
Active
WmupD-
mnd
BI: 90 Status that indicates
the control is in the
Warm-up mode.
Mechanical
Cooling
Alarm
MchClAlm BI: 94 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.
BACnet Properties for the VCM Controller
Parameter Name Object Description Limits
Mechanical
Heating
Alarm
MchHtAlm BI: 95 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 BI: 96 Alarm that indicates
the fi lters are dirty.
Control
Temperature
Cool Failure
CtrlTpCF BI: 108 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 BI: 109 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.
Dehu-
midifi cation
Demand
DehmDmnd BI: 113 Status that indicates
a demand for
dehumidifi cation.
Outdoor Air
Temperature
Lost
OaTpAlm BI: 117 Alarm that
indicates a failure
in the outdoor air
temperature.
Smoke
Detected
Alarm
SmokeAlm BI: 119 Alarm that indicates
the Smoke sensor
has been activated.
Space
Temperature
Sensor Lost
SpcTpAlm BI: 101 Alarm that indicates
a failure in the
space temperature
sensor.
On Board
Relay 1
OnRly1 BI: 127 Current status of
relay 1.
On Board
Relay 2
OnRly2 BI: 128 Current status of
relay 2.
On Board
Relay 3
OnRly3 BI: 129 Current status of
relay 3.
On Board
Relay 4
OnRly4 BI: 130 Current status of
relay 4.
Appendix H - VCM BACnet Parameters