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www.DaikinApplied.com 39
ED 15103-6 • MICROTECH III WSHP UNIT CONTROLLER
Table 19: Network Variable Outputs (NVOs) - SmartSource Single and Two Stage Compressor and Enfinity Large Two
Compressor, Continued
Point Name
l
on
W
orks
Variable
(NV Index
2
)
SNVT Type
(SNVT Index)
Range/
Default
(in Units)
Heart-
beat
Description
Network Variable Outputs (NVOs)
Effective Occupancy
Output
nvoEffectOccup
(33)
SNVT_occupancy
(109)
Init: OC_NUL
Send
Indicates the unit’s current occupancy mode. The mode in
which the unit operates depends on Occupancy Schedule,
Occupancy Schedule Override or an occupancy sensor.
nvoEffectOccup uses the local sensor unless nviOccManCmd,
nviOccSchedule or nviOccSensor network overrides are not
in a “OC_NUL” state. See
Supported Values
0 = OC_OCCUPIED
1 = OC_UNOCCUPIED
2 = OC_BYPASS
3 = OC_STANDBY
-1 (0xFF) = OC_NUL
Effective Setpoint
Output
nvoEffectSetpt
(SmartSource: 47)
(SS2C: 48)
SNVT_temp_p
(105)
50 to 95ºF
10 to 35ºC
Default
1
:
621.806ºF
327.67ºC
Send
Effective Heating or Cooling setpoint the unit is attempting
to maintain, which depends on Effective Occupancy
(nvoEffectOccup).
1
See
Effective Space
Temperature Output
nvoSpaceTemp
(26)
SNVT_temp_p
(105)
0 to 158°F
-17.77 to 70°C
Default
1
:
621.806ºF
327.67ºC
Send
Monitors the space temperature used by the unit.
nvoSpaceTemp uses the nvoLocalSpaceTmp local sensor
unless the nviSpaceTemp network override is a valid value.
1
Entering Water
Temperature
nvoEWT
(34)
SNVT_temp_p
(105)
0 to 158ºF
17.77 to 70ºC
Default
1
:
621.806ºF
327.67ºC
No
Indicates the Entering Water Temperature sensor value.
1
Fan ON/Auto
Switch Status
(Room Sensor)
nvoFanOnAuto
(35)
SNVT_switch
(95)
Init: Null
No
Displays the room sensor fan ON/Auto switch position.
Selection State Value
Fan On 0 0%
Fan Auto 1 100%
Null -1 0 to 100%
Fan Speed Output
nvoFanSpeed
SmartSource (46)
Enfinity SS2C (47)
SNVT_switch
(95)
Init: OFF
Send
Displays the commanded fan speed.
SmartSource (Series2)
Fan Speed State Value
OFF 0 0%
Running 1 0 to 100%
Enfinity Large Two Compressor (SS2C)
Fan Speed State Value
OFF 0 0%
ON 1 100%
System Mode Switch
(Heat/Cool/Auto)
Status
nvoHeatCoolAuto
SmartSource (43)
Enfinity SS2C (44)
UNVTheatCoolAuto
Init: HCA_NUL
No
Displays the room sensor System Mode switch
(Heat/Cool/Auto) position.
Supported Values
0 = HCA_OFF
1 = HCA_HEAT
2 = HCA_COOL
3 = HCA_AUTO
-1 (0xFF) = HCA_NUL (no switch present)
Humidistat Sensor
Status
nvoHumidistat
SmartSource (48)
Enfinity SS2C (49)
SNVT_switch
(95)
Default: Null
No
Status of the Humidistat/Cooling Stage #1 sensor input.
Signal input represents Humidistat for units with the HGR
option. For all other units, it is the thermostat Cooling Stage
#1 request. Input is active (Is Humid) when 24VAC is applied.
Selection State Value
Not Humid 0 0%
Is Humid 1 100%
Null -1 0 to 100%
Leaving Water
Temperature Output
nvoLWT
(36)
SNVT_temp_p
(105)
0 to 158°F
-17.77 to 70°C
Default
1
:
621.806ºF
327.67ºC
No
Indicates the Leaving Water Temperature sensor value.
1
1. Analog Null (0x7FFF) is a discrete temperature value of 621.806ºF/327.67ºC. Its purpose is to indicate a sensor failure condition or when the unit controller is not
using that temperature value.
2. The Network Variable index number is a unique identifier for certain
L
on
W
orks
variables. Some BAS companies use this numeric value instead of text to
reference these variables. The NV index number can also be found in the XIF file.
3. After Receive Heartbeat is enabled, this variable reverts to the default (non-override) value if it is not refreshed often enough through a network command or if
communication is disabled (i.e. the device is disabled or is offline).
4. The totalizer continues to increment until the maximum count is reached, at which point the BAS must reset the value by issuing a write command. The variable is
saved in nonvolatile memory every 24 hours. If power is lost, that day’s totalizer information is not stored.
