Honeywell W7752D specifications Table C3. Input Variables for Excel 10 FCU Controllers

EXCEL 10 FCU CONTROLLER LNS PLUG-INS USER GUIDE

NV name field name

nviApplicMode

nviDlcShed

nviEmerg

nviFanSpeedCmd value

nviFanSpeedCmd state

nviInUse

Table C3. Input Variables for Excel 10 FCU Controllers

engineering units:	digital
	state	default	comments
English (metric) or states plus
	or
range
	value
SNVT_hvac_mode		HVAC_AUTO	This input variable coordinates the controller operation with the
HVAC_AUTO	0	(if bound but fails to be	main equipment controller. Depending upon the available supply
HVAC_HEAT	1	received or at application	energy, the main equipment controller commands the Fan Coil
HVAC_COOL	3	restart)	Unit controller to operate in heat mode only, cool mode only or
HVAC_OFF	6		heat and cool mode if appropriate to the configuration.
HVAC_NUL	255		HVAC_AUTO means that both heating and cooling equipment are
			available, and the current mode is determined by the control
			algorithm depending upon the room temperature and effective
			setpoint. HVAC_AUTO is invalid for changeover applications.
			When the Digital input is configured for Heat/Cool changeover
			input, this input will always have priority over the network
			nviApplicMode’s HVAC_HEAT or HVAC_COOL.
BYTE		0 (if bound but fails to be	This input variable is from an energy management system. When
NORMAL	0	received or at application	it is 0, the temperature control algorithm operates in a normal
SETPOINT_SHIFT	1	restart)	mode. When it is 1, the effective setpoint will be shifted by the
			amount defined in nciEmergyManag.si_dlc_setpt_bump. For
			cooling the effective setpoint will be increased, for heating the
			effective setpoint will be decreased always with regard to the frost
			protection limit.
SNVT_hvac_emerg		EMERG_NORMAL	This input variable is an emergency input from a device that
EMERG_NORMAL	0	(at application restart)	determines the correct action during a given emergency (such as
EMERG_PRESSURIZE	1		a fire).
EMERG_DEPRESSURIZE	2		• EMERG_NORMAL, EMERG_NUL: terminate EMERG_
EMERG_PURGE	3		commands and restores the control algorithm.
EMERG_SHUTDOWN	4		• EMERG_PRESSURIZE, EMERG_PURGE,
EMERG_NUL	255		EMERG_SHUTDOWN: heat/cool outputs OFF, fan ON at
			highest speed.
			• EMERG_DEPRESSURIZE: heat/cool outputs OFF, fan OFF.
SNVT_switch		100%	This input variable allows control of the fan speed by another
0 to 100%		(at application restart)	node, such as another Fan Coil Unit Controller acting as a master
			in a master/slave relationship.
SNVT_switch		NUL	See above.
OFF	0	(at application restart)
ON	1
NUL	255
UWORD		0 (if bound but fails to be	This input variable is used by the engineering tool or other
0 to 65535		received), 65535 ( for 60s	supervisory node that it is "logged on" to the controller node. It
		at application restart)	should be set every minute, or the controller will reset it after 60s
			to automatically log off the supervisory node.
		47	EN2B-0285GE51 R0909