Honeywell Excel 10 W7752D User Manual page 42

EXCEL 10 FCU CONTROLLER LNS PLUG-INS USER GUIDE
NV name field name
nciCntrlSettings reheat_hysteresis
nciCntrlSettings fan_min_on_time
nciCntrlSettings fan_min_off_time
nciEnergyManag si_dlc_setpt_bump
nciEnergyManag si_optstart_grad[0]
nciEnergyManag si_optstart_grad[1]
nciFcuConfig room_temp_sensor
nciFcuConfig fan_speed_switch
EN2B-0285GE51 R0909
Table C2. Configuration Variables for Excel 10 FCU Controllers
digital
engineering units:
state
English (metric) or states
or
plus range
value
SNVT_lev_percent
0 to 100%
SNVT_time_sec
0 to 1200 seconds
SNVT_time_sec
0 to 1200 seconds
SNVT_temp_p
0 to 18 DDF (0 to 10 K)
SNVT_temp_p
-36 to 0 DDF/hr (-20 to 0
K/hr)
SNVT_temp_p
0 to 36 DDF/hr (0 to 20 K/hr)
BYTE
NO_TEMP_SENSOR 0
NTC_NON_LINEARIZED 2
BYTE
NO_SWITCH 0
THREE_POSITION 1
FOUR_POSITION 2
FIVE_POSITION 3
default
5% This configuration variable specifies the hysteresis between switching
the reheat output ON and OFF.
0 This configuration variable specifies the minimum time the fan has to
run when commanded ON by the control algorithm. This time will be
ignored in case of smoke purge. The min_on_time starts as soon as
the fan is switched on.
0 This configuration variable specifies the minimum time the fan has to
remain OFF when commanded OFF by the control algorithm. This time
will be ignored in case of smoke purge. The min_on_time starts as
soon as the fan is switched OFF.
3.6 DDF (2 K) This configuration variable is used to shift the temperature setpoint
during demand limit control load shedding. When nviDlcShed is
different from zero, the current occupancy setpoint will be decreased
by this value for heating and increased for cooling.
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
decrease the effective setpoint smoothly from the unoccupied or
standby cooling setpoint to the occupied cooling setpoint.
0 DDF/hr (0 K/hr) This configuration variable specifies the heating gradient used to
determine the optimum time to start increasing the current effective
setpoint smoothly to the occupied setpoint at the beginning of
scheduled occupancy.
NTC_NON_LINEARIZE This configuration variable specifies whether a direct wired room
D temperature sensor is connected to the node or a room temperature
value from the network is used.
FIVE_POSITION This configuration variable specifies the type of fan speed switch on
the wall module.
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