18 ECL-PTU-207 Preloaded Applications
nviApplicMode (nviFP05)
This network variable input is used to coordinate the Space Comfort Controller with any supervisory
controller.
If a mode that is not supported by the unit controller is requested, the unit controller will use
HVAC_AUTO.
The nviApplicMode overrides the local control of nvoHeatCool.
Refer to nvoHeatCool(nvoFP03) for more information.
ID Units Default Value
nviFP05
SNVT_hvac_mode
0 = HVAC_AUTO (Mode determined by unit)
1 = HVAC_HEAT (Use heat setpoints)
2 = HVAC_MRNG_WRMUP (Morning warmup)
3 = HVAC_COOL (Use cool setpoints)
4 = HVAC_NIGHT_PURGE (Free cooling)
5 = HVAC_PRE_COOL (Morning cooldown)
6 = HVAC_OFF (No unit operation allowed)
7 = HVAC_TEST (Special test mode, manufacturer-defined)
8 = HVAC_EMERG_HEAT (Emergency heat)
0xFF = HVAC_NUL (same as HVAC_AUTO)
All other enumerations will be interpreted as HVAC_AUTO
HVAC_AUTO
nviFanSpeedCmd (nviFP06)
This input network variable is used to override the local fan speed operation.
The system can be configured to use this variable as a 3 speed fan override or a variable speed fan
override.
To use this input as a 3 speed fan override, the Boolean constant nviFanSpeedCmdDigital
(nciCb01_124/ConstantBool3) must be set to true.
When in 3 speed fan operating mode, the requested speed (Off, 1,2,3,Auto) are linked to the values of
nciFanSettings.FanSpeed1Level,FanSpeed2Level and FanSpeed3Level (nviFP39).
When nviFanSpeedCmd is not in Auto mode, the fan will be set to the value of either
FanSpeed1Level, FanSpeed2Level or FanSpeed3Level based on the received information from nvi-
FanSpeedCmd.
When in variable fan speed operating mode, if not in auto mode the fan output will be set to the value
received by nviFanSpeedCmd.
State Value Equivalent Percent Request Speed
0 N/A 0 % OFF
0 0 to 100 0 % OFF
1 0.5 to 33 1 to 33% SPEED 1
1 33.1 to 66 33.1 to 66% SPEED 2
1 66.1 to 100 66.1 to 100% SPEED 3
-1 N/A AUTO AUTO
ID Units Default Value
nviFP06 SNVT_switch 0% / -1
Variables
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