ED 15103-6 • MICROTECH III WSHP UNIT CONTROLLER 28 www.DaikinApplied.com
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Table 16: Network Variable Outputs (NVOs) - Enfinity Single Stage 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 Space
Temperature Output
nvoSpaceTemp
(14)
SNVT_temp_p
(105)
0 to 158°F
-17.77 to 70°C
Default
1
:
621.806ºF
327.67ºC
Send
Monitors the space temperature that the unit uses for control.
nvoSpaceTemp uses the nvoLocalSpaceTmp local sensor
unless the nviSpaceTemp network override is a valid value.
1
Entering Water
Temperature
nvoEWT
(22)
SNVT_temp_p
(105)
0 to 158ºF
17.77 to 70ºC
Default
1
:
621.806ºF
327.67ºC
Send
Indicates the Entering Water Temperature sensor value.
1
Fan ON/Auto
Switch Status
(Room Sensor)
nvoFanOnAuto
(23)
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
(35)
SNVT_switch
(95)
Init: OFF
Send
Displays the commanded fan speed.
Fan Speed State Value
OFF 0 0%
Low 1 33%
Medium 1 66%
High 1 95%
ON 1 100%
System Mode Switch
(Heat/Cool/Auto)
Status
nvoHeatCoolAuto
(32)
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)
Leaving Water
Temperature Output
nvoLWT
(24)
SNVT_temp_p
(105)
0 to 158°F
-17.77 to 70°C
Default
1
:
621.806ºF
327.67ºC
Send
Indicates the Leaving Water Temperature sensor value.
1
Local Setpoint Adjust
Output
nvoSetpoint
(33)
SNVT_temp_p
(105)
55 to 95ºF
12.78 to 35ºC
Default
1
:
621.806ºF
327.67ºC
Send
The reference setpoint used to determine the Effective
Heating/Cooling setpoints. It is the value of the local, hardwired
Space Temperature setpoint. Only valid if the unit controller
JP5 configuration jumper is configured for Long Range
Setpoint Adjust and is enabled by nciLocSptEnable.
1
See
Local Space
Temperature Output
nvoLocalSpaceTmp
(26)
SNVT_temp_p
(105)
0 to 158°F
-17.77 to 70°C
Default
1
:
621.806ºF
327.67ºC
Send
The value of the hardwired space temperature sensor installed
either in the return air or the space. Writing to Space Temp
Input (nviSpaceTemp) does not affect Local Space Temp
(nvoLocalSpaceTmp) but does affect Effective Space Temp
(nvoSpaceTemp).
1
McQuay WSHP
Status
nvoMcQHPUnitStat
(31)
UNVTmcqHPUnitStat
Init: UNIT_NULL
No
Indicates the unit’s operating state.
Supported Values
0 = MUS_OFF_ALARM
1 = MUS_OFF*
2 = MUS_START
3 = MUS_FAN ONLY* (fan is allowed to operate)
4 = MUS_PREPARE_TO_HEAT
5 = MUS_HEATING
6 = MUS_PREPATE_TO_COOL
7 = MUS_COOLING
8 = MUS_PREPATE_TO_DEHUMIDIFY
9 = MUS_DEHUMIDIFICATION
-1 (0xFF) = UNIT_NULL
*
Unit controller software v3 .0 and newer
• nvoMcQHPUnitStat always matches unit controller state.
*
Unit controller software v2 .9 and older
• When the fan is off, nvoMcQHPUnitStat indicates an
OFF state, but the unit controller is actually in Fan Only
mode.
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 (NV) 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).
