Orion System PT-Link-LON - Manual (Page 20)

PT-Link-LON ® Technical Guide
PT-Link Interface 20
Appendix C - VCM-X Modular and WSHP LON Parameters
SNVTs for the VCM-X WSHP (Coil)
Binary Output SNVTs are SNVT_lev_disc
all other SNVTs are SNVT_count_inc_f
Parameter Name Object Description
Modulating
Compressor 2
MdCmp2 Analog
Output
Current position of the
2nd Stage of Compressor
Modulation.
Head Pressure 1 HdPr1 Analog
Output
Head Pressure for
1st Compressor
Head Pressure 2 HdPr2 Analog
Output
Head Pressure for
2nd Compressor
Condenser
Fan 1
CdFan1 Analog
Output
Condenser Fan 1
Signal Status
Condenser
Fan 2
CdFan2 Analog
Output
Condenser Fan 2
Signal Status
Water Temp. A WaterTpA Analog
Output
Current water
temperature.
Compressor A
Low Suction
Pressure Alarm
A1LSPAlm Binary
Output Alarm that indicates
Suction Pressure for Circuit A
is below the Low
Suction Pressure Cooling
(Heating) Setpoint.
Compressor A
Lockout Alarm
A1LktAlm Binary
Output Alarm that indicates Circuit A
Compressors are locked out.
Compressor B
Low Suction
Pressure Alarm
B1LSPAlm Binary
Output Alarm that indicates
Suction Pressure for Circuit B
is below the Low
Suction Pressure Cooling
(Heating) Setpoint.
Compressor B
Lockout Alarm
B1LktAlm Binary
Output Alarm that indicates Circuit B
Compressors are locked out.
Low Water
Temperature
Alarm
LWT1Alm Binary
Output Alarm that indicates water tem-
perature is below the Leaving
Water Safety
Setpoint (Heating only).
Proof of Water
Flow Alarm
POWF1Alm Binary
Output Alarm that indicates no
Proof of Water Flow.
Module
Communica-
tions
Alarm
ComMAlm Binary
Output Alarm that indicates that one
or more Modules are not com-
municating with the VCM-X
WSHP Controller.