Daikin MicroTech III Sales And Engineering Data Sheet page 40

Table 19: Network Variable Outputs (NVOs) - SmartSource Single and Two Stage Compressor and Enfinity Large Two
Compressor, Continued
l W
on orks
Point Name
(NV Index
nvoSetpoint
Local Setpoint Adjust
Output SmartSource (44)
Enfinity SS2C (45)
Local Space nvoLocalSpaceTmp
Temperature Output (38)
nvoMcQHPUnitStat
McQuay WSHP
Status (SmartSource: 42)
(SS2C: 43)
nvoPreviousAlarm
Previous Alarm
(39)
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
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.
ED 15103-6 • MICROTECH III WSHP UNIT CONTROLLER
Variable SNVT Type
2 ) (SNVT Index)
Network Variable Outputs (NVOs)
SNVT_temp_p
(105)
SNVT_temp_p
(105)
UNVTmcqHPUnitStat
SNVT_str_asc
(36)
on
Range/
Heart-
Default
beat
(in Units)
The reference setpoint used to determine the Effective
55 to 95ºF
Heating/Cooling setpoints. It is the value of the local,
12.78 to 35ºC
hardwired space temperature setpoint. It is only valid if the
Send
Default 1 :
unit controller JP5 configuration jumper is configured for Long
621.806ºF
Range Setpoint Adjust and is enabled by nciLocSptEnable.
327.67ºC
See Effective Occupancy
0 to 158°F
The value of the hardwired space temperature sensor
-17.77 to 70°C
installed either in the return air or in the space. Writing to
Send Space Temp Input (nviSpaceTemp) does not affect Local
Default :
1
Space Temp (nvoLocalSpaceTmp) but does affect Effective
621.806ºF
Space Temp (nvoSpaceTemp).
327.67ºC
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)
Init: UNIT_NULL No
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
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
Init: No Alarms No
• 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
W variables. Some BAS companies use this numeric value instead of text to
orks
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C d T
omprehensIve aTa ables
Description
Modes.
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