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Honeywell Excel 10 W7752D User Manual page 46

Fan coil unit controllers lns plug-ins
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EXCEL 10 FCU CONTROLLER LNS PLUG-INS USER GUIDE
NV name
field name
nciFcuGains
si_pid_Xp[1]
nciFcuGains
si_pid_Tn[0]
nciFcuGains
si_pid_Tn[1]
nciFcuGains
si_pid_Tv[0]
nciFcuGains
si_pid_Tv[1]
nciFcuGains
si_boost[0]
nciFcuGains
si_boost[1]
nciNumValve
nciSetPnts
occupied_cool
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_temp_p
2.25 to 180 DDF
(1.25 to 100 K), 0 = Disable
SNVT_time_sec
10 to 3200 seconds
0 = Disable
SNVT_time_sec
10 to 3200 seconds
0 = Disable
SNVT_time_sec
10 to 3200 seconds
0 = Disable
SNVT_time_sec
10 to 3200 seconds
0 = Disable
SNVT_temp_p
0.9 to 18 DDF (0.5 to 10 K)
0 = Disable
SNVT_temp_p
0.9 to 18 DDF (0.5 to 10 K)
0 = Disable
SNVT_count
TWO_PIPE
1
FOUR_PIPE
2
SNVT_temp_p
50 to 95°F (10 to 35°C)
default
36 DDF (20 K)
This configuration variable specifies the throttling range for use in the
proportional portion of the PID loop gain for the heating mode. The
minimum configurable value (not including 0 for disabling) is 3.6 DDF
(2 K) for PI or 2.25 DDF (1.25 K) for P control. For versions prior to
1.0.3, the minimum value is 7.2 DDF (4 K).
250 s
This configuration variable specifies the integral time for use in the
integral portion of the PID loop gain for the cooling mode.
250 s
This configuration variable specifies the integral time for use in the
integral portion of the PID loop gain for the heating mode.
0 s
This configuration variable specifies the derivative time for use in the
derivative portion of the PID loop gain for the cooling mode.
0 s
This configuration variable specifies the derivative time for use in the
derivative portion of the PID loop gain for the heating mode.
1.8 DDF (1 K)
This configuration variable specifies the temperature range to be
added to the cooling setpoint, above which the cooling output is fully
open to allow a faster response. For thermal actuators it is the
hysteresis for thermal control algorithm.
1.8 DDF (1 K)
This configuration variable specifies the temperature range to be
subtracted from the heating setpoint, below which the heating output is
fully open to allow a faster response. For thermal actuators it is the
hysteresis for thermal control algorithm.
FOUR_PIPE
This configuration variable specifies a two-pipe system (one valve) or a
four-pipe system (two valves). If set to TWO_PIPE, only the output
terminals for output1 are used. If set to FOUR_PIPE, output1 and
output2 are defined by nciFcuConfig.output_mode[].
73.4°F (23°C)
This is the default setpoint for the occupied cooling setpoint which is
used in case there is no locally wired setpoint knob or nviSetpoint has
not been bound. Where the ZEB for occupied is used, it is derived from
the difference between occupied_cool and occupied_heat.
44
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