Honeywell W7752D instruction

EXCEL 10 FCU CONTROLLER LNS PLUG-INS USER GUIDE

NV name

nciCntrlSettings

field name

fan_run_up_time

fan_overrun_time

switch_level_cool[0]

switch_level_cool[1]

switch_level_cool[2]

switch_level_heat[0]

switch_level_heat[1]

switch_level_heat[2]

staging_hysteresis[0]

staging_hysteresis[1]

reheat_switch_level

Table C2. Configuration Variables for Excel 10 FCU Controllers

engineering units:	digital
engineering units:	state	default	comments
English (metric) or states	state
English (metric) or states	or
plus range	or
plus range	value
	value
SNVT_time_sec	0	0	This configuration variable specifies the time the fan runs before the
0 to 600 seconds			outputs are switched ON. It is typically used for electric heat outputs
			with fan interlock (see nciFcuConfig.fan_interlock_0 and _1). The
			interlock must be set.

SNVT_time_sec	0	0	This configuration variable specifies the time the fan still runs after the
0 to 600 seconds			control algorithm has turned OFF the cooling/heating outputs. It is
			typically used for electric heat with fan interlock (see
			nciFcuConfig.fan_interlock_0 and _1). The interlock must be set. In
			case of smoke purge the overrun-time will be ignored.

SNVT_lev_percent		5%	This is the switching level to turn ON stage 1 of the cooling equipment
0 to 100%, 0 = Disable			(if configured as multistage).

SNVT_lev_percent		50%	This is the switching level to turn ON stage 2 of the cooling equipment
0 to 100%, 0 = Disable			(if configured as multistage).

SNVT_lev_percent		75%	This is the switching level to turn ON stage 3 of the cooling equipment
0 to 100%, 0 = Disable			(if configured as multistage).

SNVT_lev_percent		5%	This is the switching level to turn ON stage 1 of the heating equipment
0 to 100%, 0 = Disable			(if configured as multistage).

SNVT_lev_percent		50%	This is the switching level to turn ON stage 2 of the heating equipment
0 to 100%, 0 = Disable			(if configured as multistage).

SNVT_lev_percent		75%	This is the switching level to turn ON stage 3 of the heating equipment
0 to 100%, 0 = Disable			(if configured as multistage).

SNVT_lev_percent		10%	This configuration variable applies only to cool outputs configured as
0 to 100%			multistage outputs and specifies the hysteresis between switching the
			cool stages ON and OFF.

SNVT_lev_percent		10%	This configuration variable applies only to heat outputs configured as
0 to 100%			multistage outputs and specifies the hysteresis between switching the
			heat stages ON and OFF.
SNVT_lev_percent		100%	This configuration variable specifies the switch-over control output level
0 to 100%			for the reheat output.

39	EN2B-0285GE51 R0909

EXCEL 10 FCU CONTROLLER LNS PLUG-INS USER GUIDE

NV name

default

0 to 100%

for the reheat output.

EN2B-0285GE51 R0909