Orion System PT-Link II BACnet3 - Manual (Page 36)

Zone
Zone
7. PARAMETER TABLES
PT-Link II BACnet3 Interface 36
7.1 VCB-X BACnet Parameters
BACnet Properties for the VCB-X Controller
Param-
eter
Name Object Description Limits
Force
HVAC
Mode
FrcHvacM AV: 262 Overrides
normal controller
operation in
order to force
the unit into this
desired mode.
Confi guring
for “Auto” will
restore normal
unit control of
the mode of
operation.
0=Auto
1=Vent
2=Cool
3=Heat
4=Vent
Dehum.
5=Cool
Dehum.
6=Heat
Dehum.
Head
Pressure
HeadPr AI:276 Current value of
the Head
Pressure
Reading.
Head
Pressure
Setpoint
HeadPrSt AI:279 Current Head
Pressure
Setpoint.
Head
Pressure
Setpoint
in Cooling
Mode
ClHdPrSt AV:293 This is the Head
Pressure Setpoint
the unit will
control to in the
Cooling Mode.
240
PSI
420
PSI
Head
Pressure
Setpoint
in Reheat
Mode
HtHdPrSt AV:294 This is the Head
Pressure Setpoint
the unit will
control to in the
Dehumidifi cation
Reheat Mode.
240
PSI
420
PSI
High Head
Pressure
HiHedPr BI: 381 Indicates the
Head Pressure is
too high.
SAT
Heating
Low Reset
Source
HtLoRt AV: 328 If doing Supply
Air Setpoint
Reset, this is
the Low Reset
Source value in
Heating that will
correspond to the
Supply Air Heat-
ing High Reset
Setpoint.
1 150
SAT
Heating
High Reset
Source
HtHiRt AV: 329 If doing Supply
Air Setpoint
Reset, this is
the High Reset
Source value in
Cooling that will
correspond to
the Supply Air
Cooling Setpoint
(Low Reset).
1 150
Heating
Enabled
HtEnbl AI: 30 Status that
indicates that
mechanical heat-
ing is enabled to
operate.
BACnet Properties for the VCB-X Controller
Param-
eter
Name Object Description Limits
Heating
Setpoint
Mirror
HtSt AI: 31 Occupied
Heating Mode
Enable Setpoint.
Heat
Staging
Window
HtStgWdw AV: 341 In the Heat-
ing Mode, if
the Supply Air
Temperature
rises above the
Active Supply
Air Heating
Setpoint plus the
Heating Stage
Off Window
value, a Heating
stage will be
deactivated after
its Minimum
Run Time.
1 50
Mechani-
cal Heating
Lockout
MchHtLkt AV: 343 The VCB-X
will Lockout
Mechanical
Heating when
the Outdoor Air
Temperature
is above this
Setpoint.
-30 150
Mechani-
cal Heating
Alarm
MchHtAlm BI: 95 Heating Mode
has been initiated
but the Supply
Air Temperature
has not risen
5°F within a
user-adjustable
time period. This
does not apply
for Modulating
Heating.
Heat Pump
Compres-
sor Heating
Outdoor
Lockout
HpLkt AV: 351 Compressor
Heating will be
locked out when
the Outdoor Air
Temperature
is below this
Setpoint.
-30 100
Heat Pump
Defrost
Interval
HpDfrInt AV: 355 The Heat Pump
Defrost Interval
is the length of
time that must
be met between
Defrost Modes.
10
Min
120
Min
Heat
Wheel
Defrost
Setpoint
Dfrst AV: 346 The unit will go
into Heat Wheel
Defrost Mode
when the Out-
door Air is below
this setpoint.
0 50
Indoor
Humidity
InRh AI: 67 Current value
of the Indoor
Humidity
Sensor.