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www.DaikinApplied.com 59
ED 15103-6 • MICROTECH III WSHP UNIT CONTROLLER
Valid nviSetpoint value:
• ReferenceSP = (nviSe nviSetptOffset)
• EffCoolOnSP = (Refer DeadBandFactor)
• EffCoolOffSP = (EffCoolOnSP – nciOccDiff)
• EffHeatOnSP = (ReferenceSP – DeadBandFactor)
• EffHeatOffSP = (EffHe nciOccDiff)
Invalid nviSetpoint value: (Analog Null)
The Reference setpoint used in this calculation is shown here
for both Occupied and Standby modes:
Occupied: ReferenceSP = (nciSetpoints.occupied_cool -
DeadBannviSetptOffset)
Standby: ReferenceSP = (nciSetpoints.standby_cool –
DeadBand nviSetptOffset)
• EffCoolOnSP = (Refer DeadBandFactor)
• EffCoolOffSP = (EffCoolOnSP – nciOccDiff)
• EffHeatOnSP = (ReferenceSP – DeadBandFactor)
• EffHeatOffSP = (EffHe nciOccDiff)
3 .
The unit is operating In Occupied or Standby mode
with Long Range Local Setpoint Adjust selected and
nciLocSptEnable=1 .
The DeadBandFactor used in this
calculation is shown here for both Occupied and Standby
modes.
Occupied: DeadBandFactor = ((nciSetpoints.occupied_
cool – nciSetpoints.occupied_heat) / 2)
Standby: DeadBandFactor = ((nciSetpoints.standby_cool
– nciSetpoints.standby_heat) / 2)
• ReferenceSP = nvoSetpoint
• EffCoolOnSP = (Refer DeadBandFactor)
• EffCoolOffSP = (EffCoolOnSP – nciOccDiff)
• EffHeatOnSP = (ReferenceSP – DeadBandFactor)
• EffHeatOffSP = (EffHe nciOccDiff)
4 .
The unit is operating in Occupied mode with
Short Range Local Setpoint Adjust selected and
nciLocSptEnable=1
.
• EffCoolOnSP = (nciSetpoints.occupie
nvoSetptShift)
• EffCoolOffSP = (EffCoolOnSP – nciOccDiff)
• EffHeatOnSP = (nciSetpoints.occupie
nvoSetptShift)
• EffHeatOffSP = (EffHe nciOccDiff)
5 .
The unit is operating in Standby mode with
Short Range Local Setpoint Adjust selected and
nciLocSptEnable=1 .
• EffCoolOnSP = (nciSetpoints.standb
nvoSetptShift)
• EffCoolOffSP = (EffCoolOnSP – nciOccDiff)
• EffHeatOnSP = (nciSetpoints.standb
nvoSetptShift)
• EffHeatOffSP = (EffHe nciOccDiff)
NOTE:
Refer below for subsequent stages #2-4 heating/
cooling setpoint calculations.
1 .
Enfinity Single Stage Compressor models MHC/
MHW, CCH/CCW (5-ton or less), VFC/VF, LVC/LVW,
and VHC/VHF (HP0)
• Cool Stage#2 ON SP = Cool Stage#1 ON SP + 2°F
• Heat Stage#2 ON SP = Heat Stage#1 ON SP – 2°F
2 .
SmartSource Single and Two Stage Compressor
(Series2) models GSH/GSV, GTH/GTV, GCV (HP2) and
Enfinity Large Two Compressor (SS2C) models CCH/
CCW (6-ton or greater), and LVC/LVW (HP3)
• Cool Stage#2 ON SP = Cool Stage#1 ON SP +
nciStg2SptDiff (AV33)
• Cool Stage#3 ON SP = Cool Stage#2 ON SP +
nciStg2SptDiff (AV33)
• Heat Stage#2 ON SP = Heat Stage#1 ON SP –
nciStg2SptDiff (AV33)
• Heat Stage#3 ON SP = Heat Stage#2 ON SP –
nciStg3SptDiff (AV36)
• Heat Stage#4 ON SP = Heat Stage#3 ON SP –
nciStg4SptDiff (AV37) applies to HP2 only
Important Notes
1.
The Long/Short Range configuration jumper (JP5) does
not affect network setpoint operation.
2. Effective deadband does not apply to units in
Unoccupied mode.
3. The LonMark organization provides a detailed
description of the symmetrical method used to determine
the effective setpoint calculation. Refer to the Wall Unit
Functional Profile, available at:
technical_resources/guidelines/docs/profiles/8540_10.
.
