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

PT-Link II Interface
PT-Link II LON ® Technical Guide
41
SNVTs for the VCM-X WSHP (Tulsa) & RNE
Binary Output SNVTs are SNVT_lev_disc
all other SNVTs are SNVT_count_inc_f
Parameter Name Object Description Limits
Low Water
Temperature 1
Alarm
LWT1Alm Binary
Output Alarm that
indicates water
temperature is
below the Leav-
ing Water Safety
Setpoint (Heating
only) for System
A.
Low Water
Temperature 2
Alarm
LWT2Alm Binary
Output Alarm that
indicates water
temperature is
below the Leav-
ing Water Safety
Setpoint (Heating
only) for System
B
Proof of Water 1
Flow Alarm
POWF1Alm Binary
Output Alarm that
indicates no Proof
of Water Flow for
System A (A1/
A2)
Proof of Water 2
Flow Alarm
POWF2Alm Binary
Output Alarm that
indicates no Proof
of Water Flow for
System B (B1/
B2)
Module
Communica-
tions Alarm
ComMAlm Binary
Output Alarm that
indicates that one
or more Modules
are not
communicating
with the VCM-X
WSHP Controller.
Bad Return Air
Sensor
RaTpAlm Binary
Output Alarm that indi-
cates
a failure in the
Return Air Sen-
sor.
Title 24
Economizer
Alarms
AlmGrp5 Analog
Output
Alarms for the 24
Title Economizer
Title 24
Economizer
Feedback
T24EcFb Analog
Output
Current position
of feedback from
Economizer
actuator.
Appendix D - VCM-X WSHP Tulsa & RNE LON Parameters
SNVTs for the VCM-X WSHP (Tulsa) & RNE
Binary Output SNVTs are SNVT_lev_disc
all other SNVTs are SNVT_count_inc_f
Parameter Name Object Description Limits
Title 24
Sensor Alarm
T24TpAlm Binary
Output Outside Air
or Supply Air
Temperature Sen-
sor is shorted or
missing.
Title 24 Not
Economizing
When It Should
T24NEWS Binary
Output Economizer is
enabled but not
following the
desired Econo-
mizer position
commanded.
Title 24 Econo-
mizing When It
Should Not
T24EWISN Binary
Output Economizer is
not enabled but
the feedback
signal indicates
a position more
open than the
minimum.
Title 24 Damper
Failure
T24DpAlm Binary
Output Economizer is
enabled but not
within 10% of
desired posi-
tion within 150
seconds.
Title 24 Excess
Outdoor Air
T24ExsOA Binary
Output Economizer
feedback is lost or
Economizer is not
following com-
manded position.
Revised 8/28/14