ED 15103-6 • MICROTECH III WSHP UNIT CONTROLLER 40 www.DaikinApplied.com
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omprehensIve
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aTa
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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)
Local Setpoint Adjust
Output
nvoSetpoint
SmartSource (44)
Enfinity SS2C (45)
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. It is 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
(38)
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 in 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
(SmartSource: 42)
(SS2C: 43)
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
Previous Alarm
nvoPreviousAlarm
(39)
SNVT_str_asc
(36)
Init: No Alarms
No
Indicates the previous unit fault.
SmartSource (Series2) Alarm Strings
• No Alarms
• IO Exp Communication Fail
•
Invalid Configuration
• Low Voltage Brownout
• Comp High Pressure
• Comp Low Pressure
• Comp Suctn Temp Snsr Fail
• Comp Low Suction Temp
• Freeze Fault Detect
• Room Temp Sensor Fail
• Entering Water Temp Snsr Fail
• Leaving Water Temp Snsr Fail
•
Condensate Overflow
• Low Entering Water Temp
• Serial EEPROM Corrupted
• Wtrside Econ Low Temp Cutout
Enfinity Large Two Compressor (SS2C) Alarm Strings
• No Alarms
• IO Exp Communication Fail
•
Invalid Configuration
• Low Voltage Brownout
• Comp #1 High Pressure
• Comp #2 High Pressure
• Comp #1 Low Pressure
• Comp #2 Low Pressure
• Comp #1 Suctn Temp Snsr Fail
• Comp #2 Suctn Temp Snsr Fail
• Comp #1 Low Suction Temp
• Comp #2 Low Suction Temp
• Freeze Fault Detect
• Room Temp Sensor Fail
• Entering Water Temp Snsr Fail
• Leaving Water Temp Snsr Fail
•
Condensate Overflow
• Low Entering Water Temp
• Serial EEPROM Corrupted
• Wtrside Econ Low Temp Cutout
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.
