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EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER
99 74-2958—1
DestHvacMode nviApplMode
(SNVT_hvac_mode)
HVAC_AUTO
HVAC_HEAT
HVAC_MRNG_WRMUP
HVAC_COOL
HVAC_NIGHT_PURGE
HVAC_PRE_COOL
HVAC_OFF
HVAC_TEST
HVAC_EMERG_HEAT
HVAC_FAN_ONLY
HVAC_NUL
0
1
2
3
4
5
6
7
8
9
255
HVAC_AUTO M X X X X X ApplMode is an input that coordinates the roof top unit controller operation
with other controllers. HVAC_NIGHT_PURGE
HVAC_PRE_COOL
HVAC_MRNG_WRMUP
HVAC_NUL
HVAC_TEST are not supported and will default to the HVAC_AUTO setting
if received.
DestManOcc nviManOcc
(SNVT_occupancy)
OC_OCCUPIED
OC_UNOCCUPIED
OC_BYPASS
OC_STANDBY
OC_NUL
0
1
2
3
255
OC_NUL X X X ManOcc is an input from a network connected operator interface or other
node that indicates the state of a manual occupancy control thus over
riding the scheduled occupancy state. ManOcc is used along with other
occupancy inputs to calculate the effective occupancy of the node. See the
Data1.EffectOcc and Data1.NetManOcc for more details.The valid
enumerated values have the following meanings: OC_OCCUPIED
indicates occupied. OC_UNOCCUPIED indicates not occupied.
OC_BYPASS indicates that the space is occupied for
Aux2SetPt.BypassTime seconds after ManOcc is first set to OC_BYPASS.
The timing is done by the bypass timer in this node. If ManOcc changes to
another value the timer is stopped.OC_STANDBY indicates that the space
is in standby mode.OC_NUL and all unspecified values means that no
manual occupancy control is requested. When ManOcc changes from
OC_OCCUPIED, OC_UNOCCUPIED, OC_BYPASS, or OC_STANDBY to
OC_NUL, any bypass condition is canceled.
DestRmTempSpt nviSetPoint
(SNVT_temp_p)
Degrees F
50 to 95
Degrees C
(10 to 35)
SI_INVALID X X X SetPoint is an input network variable used to determine the temperature
control point of the node. If SetPoint is not SI_INVALID, then it is used to
determine the control point of the node. If SetPoint is SI_INVALID, then
other means are used to determine the control point. See
Data2.TempControlPt for more information.
DestSptOffset nviSetPtOffset
(SNVT_temp_p)
Degrees F
-18 to 18
Degrees C
-10 to 10
0 X X X X SetPtOffset is input from an operator terminal or from an energy
management system used to shift the effective temperature setpoint by
adding SetPtOffset to the otherwise calculated setpoint. If the value is
outside the allowed range of -10 to +10 degrees C (-18 to 18 degrees F),
then the node uses the value of the nearest range limit.
SrcRmTempActSpt nvoEffectSetPt
(SNVT_temp_p)
Degrees F
50 to 95
Degrees C
(10 to 35)
SI_INVALID X X EffectSetPt is the current temperature control point (such that the current
actual space temperature setpoint which the controller is presently trying to
maintain in the conditioned space). See Data2.TempControlPt for more
details. EffectSetPt is updated according to the SGPU mechanism where a
significant change is plus or minus 0.07 degrees C (0.13 degrees F).
Table 26. L
ON
M
ARK
®/Open System Points. (Continued)
User Address NvName Field Name
Engineering Units: English
(Metric) or States plus Range
Digital State or
Value of State
Default
E-Vision (M, P, S)
Share
Map
Direct Access
Hardware Config.
Manual Config.
Failure Detect
E-Vision Legend: (M) Monitor, (P) Parameter, (S) Schematic
Comments