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www.DaikinApplied.com 27
ED 15103-6 • MICROTECH III WSHP UNIT CONTROLLER
Table 16:
Network Variable Outputs (NVOs) - Enfinity Single Stage Compressor
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)
Binary Input Status
nvoBinaryIn
(16)
SNVT_state
(83)
32 bits
Init: All bits = 0
No
Monitors the digital inputs of the unit controller for diagnostic
purposes. Each item is reported as a bit so that multiple inputs
can be viewed simultaneously. Physical input status bits. See
Selected Parameters Information
for bit descriptions.
Binary Output Status
nvoBinaryOut
(17)
SNVT_state
(83)
16 bits
Init: All bits = 0
No
Monitors the digital outputs of the unit controller for diagnostic
purposes. Each item is reported as a bit so that multiple
outputs can be viewed simultaneously. Physical output status
bits. See
Selected Parameters Information
for bit description
and output settings for valves and electric heat options.
Brownout Voltage
Reading
nvoBrownout
(34)
SNVT_count
(8)
0 to 1023 counts
Default: 500
No
The Brownout Voltage Reading is compared to the reference
setpoint in order to determine if a brownout condition exists.
Compressor #1
Suction Temperature
nvoSuctionTemp1
(29)
SNVT_temp_p
(105)
0 to 158ºF
17.77 to 70ºC
Default
1
:
621.806ºF
327.67ºC
No
Indicates the compressor #1 suction line temperature sensor
value.
1
Compressor #2
Suction Temperature
nvoSuctionTemp2
(30)
SNVT_temp_p
(105)
0 to 158ºF
17.77 to 70ºC
Default
1
:
621.806ºF
327.67ºC
No
Indicates the compressor #2 suction line temperature sensor
value.
1
Condensate Overflow
Status
nvoCondOverflow
(18)
SNVT_switch
(95)
Default: Null
No
Monitors the condensate overflow sensor input.
Selection State Value
Dry 0 0%
Wet 1 100%
Null -1 0 to 100%
Current Alarm
nvoCurrentAlarm
(19)
SNVT_str_asc
(36)
Init:
No Alarms
No
Displays the current highest active alarm.
Alarm Strings
• No Alarms
• 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
• Room Temp Sensor Fail
• Entering Water Temp Snsr Fail
•
Condensate Overflow
• Serial EEPROM Corrupted
•
Invalid Configuration
• Low Entering Water Temp
Discharge Air
Temperature
nvoDischAirTemp
(20)
SNVT_temp_p
(105)
0 to 158ºF
17.77 to 70ºC
Default
1
:
621.806ºF
327.67ºC
Send
Indicates the discharge air temperature sensor value.
1
Effective Occupancy
Output
nvoEffectOccup
(21)
SNVT_occupancy
(109)
Init: OC_NUL
Send
Indicates which occupancy mode is being used by the unit.
The mode that the unit operates depends on Occupancy
Schedule, Occupancy Schedule Override and/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
(36)
SNVT_temp_p
(105)
50 to 95ºF
10 to 35ºC
Default
1
:
621.806ºF
327.67ºC
Send
Effective Heating or Effective Cooling Setpoint the unit
is attempting to maintain, which depends upon Effective
Occupancy (nvoEffectOccup).
1
See
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).
