EXCEL 10 FCU CONTROLLER LNS PLUG-INS USER GUIDE
NV name
nciCntrlSettings
nciCntrlSettings
nciCntrlSettings
nciEnergyManag
nciEnergyManag
nciEnergyManag
nciFcuConfig
nciFcuConfig
field name
reheat_hysteresis
fan_min_on_time
fan_min_off_time
si_dlc_setpt_bump
si_optstart_grad[0]
si_optstart_grad[1]
room_temp_sensor
fan_speed_switch
Table C2. Configuration Variables for Excel 10 FCU Controllers
engineering units: | digital |
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state | default | comments | ||
English (metric) or states | ||||
or | ||||
plus range |
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value |
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SNVT_lev_percent |
| 5% | This configuration variable specifies the hysteresis between switching | |
0 to 100% |
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| the reheat output ON and OFF. | |
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| |
SNVT_time_sec |
| 0 | This configuration variable specifies the minimum time the fan has to | |
0 to 1200 seconds |
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| run when commanded ON by the control algorithm. This time will be | |
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| ignored in case of smoke purge. The min_on_time starts as soon as | |
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|
| the fan is switched on. | |
SNVT_time_sec |
| 0 | This configuration variable specifies the minimum time the fan has to | |
0 to 1200 seconds |
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| remain OFF when commanded OFF by the control algorithm. This time | |
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| will be ignored in case of smoke purge. The min_on_time starts as | |
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| soon as the fan is switched OFF. | |
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| |
SNVT_temp_p |
| 3.6 DDF (2 K) | This configuration variable is used to shift the temperature setpoint | |
0 to 18 DDF (0 to 10 K) |
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| during demand limit control load shedding. When nviDlcShed is | |
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| different from zero, the current occupancy setpoint will be decreased | |
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| by this value for heating and increased for cooling. | |
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| |
SNVT_temp_p |
| 0 DDF/hr (0 K/hr) | This configuration variable specifies the cooling gradient used by the | |
|
| optimum start function to calculate the optimum time for starting to | ||
K/hr) |
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| decrease the effective setpoint smoothly from the unoccupied or | |
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| standby cooling setpoint to the occupied cooling setpoint. | |
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| |
SNVT_temp_p |
| 0 DDF/hr (0 K/hr) | This configuration variable specifies the heating gradient used to | |
0 to 36 DDF/hr (0 to 20 K/hr) |
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| determine the optimum time to start increasing the current effective | |
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| setpoint smoothly to the occupied setpoint at the beginning of | |
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| scheduled occupancy. | |
BYTE |
| NTC_NON_LINEARIZE | This configuration variable specifies whether a direct wired room | |
NO_TEMP_SENSOR | 0 | D | temperature sensor is connected to the node or a room temperature | |
NTC_NON_LINEARIZED | 2 |
| value from the network is used. | |
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BYTE |
| FIVE_POSITION | This configuration variable specifies the type of fan speed switch on | |
NO_SWITCH | 0 |
| the wall module. | |
THREE_POSITION | 1 |
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| |
FOUR_POSITION | 2 |
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FIVE_POSITION | 3 |
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40 |