Orion System PT-Link II BACnet2 - Manual (Page 41)

PT-Link II Interface
PT-Link II BACnet ® Technical Guide
41
Appendix E - VCM-X Modular and WSHP BACnet Parameters
BACnet Properties for VCM-X WSHP (Coil)
Parameter Name Object Description Limits
Modulating
Compressor 2
MdCmp2 AI: 206 Current
position of the
2nd Stage of
Compressor
Modulation.
Head Pressure 1 HdPr1 AI: 207 Head Pressure
for
1st
Compressor
Head Pressure 2 HdPr2 AI: 208 Head Pressure
for
2nd
Compressor
Condenser
Fan 1
CdFan1 AI: 209 Condenser
Fan 1
Signal Status
Condenser
Fan 2
CdFan2 AI: 210 Condenser
Fan 2
Signal Status
BACnet Properties for VCM-X WSHP (Tulsa)
and RNE Controllers
Parameter Name Object Description Limits
Low Water
Temperature 1
Alarm
LWT1Alm BI: 230 Alarm that
indicates water
temperature is
below the
Leaving Water
Safety Setpoint
(Heating only)
for System A.
Low Water
Temperature 2
Alarm
LWT2Alm BI: 231 Alarm that
indicates water
temperature is
below the
Leaving Water
Safety Setpoint
(Heating only)
for System B
Proof of Water 1
Flow Alarm
POWF1Alm BI: 232 Alarm that
indicates no
Proof of Water
Flow for System
A (A1/A2)
Proof of Water 2
Flow Alarm
POWF2Alm BI: 233 Alarm that
indicates no
Proof of Water
Flow for System
B (B1/B2)
Module
Communica-
tions Alarm
ComMAlm BI: 234 Alarm that
indicates that one
or more Modules
are not
communicating
with the VCM-X
WSHP Control-
ler.
BACnet Properties for VCM-X WSHP (Coil)
Parameter Name Object Description Limits
Water Temp. A WaterTpA AI: 220 Current water
temperature.
Remote VFD
Reset
RmVFDPos AV:
258 Remote VFD
Position Reset
-1 100
Compressor A
Low Suction
Pressure Alarm
A1LSPAlm BI: 222 Alarm that
indicates
Suction
Pressure for
Circuit A is
below the
Low
Suction Pres-
sure Cooling
(Heating)
Setpoint.
Compressor A
Lockout Alarm
A1LktAlm BI: 223 Alarm that
indicates
Circuit A
Compressors
are locked
out.
Compressor B
Low Suction
Pressure Alarm
B1LSPAlm BI: 226 Alarm that
indicates
Suction
Pressure for
Circuit B is
below the
Low
Suction Pres-
sure Cooling
(Heating)
Setpoint.
Compressor B
Lockout Alarm
B1LktAlm BI: 227 Alarm that
indicates
Circuit B
Compressors
are locked
out.
Low Water
Temperature
Alarm
LWT1Alm BI: 230 Alarm that
indicates wa-
ter tempera-
ture is below
the Leaving
Water Safety
Setpoint
(Heating
only).
Proof of Water
Flow Alarm
POWF1Alm BI: 232 Alarm that
indicates no
Proof of Water
Flow.
Module
Communica-
tions
Alarm
ComMAlm BI: 234 Alarm that
indicates that
one or more
Modules are
not commu-
nicating with
the VCM-X
WSHP
Controller.
Revised 10/11/12