Honeywell W7752D specifications Low

EXCEL 10 FCU CONTROLLER LNS PLUG-INS USER GUIDE

Terminal Block Assignment and Wiring Example for the W7752 Controller

Table 11 illustrates terminal block assignments and wiring for an example Excel 10 W7752 FCU Controller installation. Table 12 lists wiring information for all possible actuator types.

Table 11. W7752 Controller: Overview of terminals and functions (by model)

	terminal	function			model
	#		D	E	F	G	J
1		GND serving terminals 2 and 3	3	3	3	3	3
2		a digital input, configurable (using the LNS plug-in) to read input e.g. from a	3	3	3	3	3
		window contact, an occupancy sensor, etc.
3		a digital output, permanently configured to write output switching the wall module's	3	3	3	3	3
		LED ON/OFF
4		an analog input, permanently configured to read input from a wall module's	3	3	3	3	3
		temperature setpoint adjustment knob
		an analog input, permanently configured to read input on whether the wall
5		module's 3-speed fan control knob has been set to AUTO, OFF, LOW, MEDIUM,	3	3	3	3	3
		or HIGH and whether the wall module's "occupancy override" button has been
		pressed
6		an analog input, permanently configured to read input from a room temperature	3	3	3	3	3
		sensor
7		GND serving terminals 4, 5, and 6	3	3	3	3	3
8		not used	--	--	--	--	--
9+10		receiving/sending data on the LONWORKS network	3	3	3	3	3
11+12		sending/receiving data on the LONWORKS network	3	3	3	3	3
13		a common terminal for terminals 14 and 15	3	3	3	3	3
14		a triac output, permanently configured to write output to OUT1, opening it	3	3	3	3	3
15		a triac output, permanently configured to write output to OUT1, opening it	3	3	3	3	3
16		a common terminal for terminals 17 and 18	3	3	3	3	3
17		a triac output, permanently configured to write output to OUT2, opening it	3	3	3	3	3
18		a triac output, permanently configured to write output to OUT2, closing it	3	3	3	3	3
19		a common terminal for terminals 20, 21, and 22	3	3	3	3	3
20(1)		relay 1, permanently configured to write output to a three-speed fan, setting it to	3	3	3	3	3
		LOW
21(1)		relay 2, permanently configured to write output to a three-speed fan, setting it to	3	3	3	3	3
		MEDIUM
22(1)		relay 3, permanently configured to write output to a three-speed fan, setting it to	3	3	3	3	3
		HIGH
23		the "L" terminal of the power supply (230 Vac, 115 Vac, or 100 Vac, respectively)	230	230	115	115	100
24		the "N" terminal of the power supply (230 Vac, 115 Vac, or 100 Vac, respectively)	230	230	115	115	100
25+26		relay 4, permanently configured to write output to a hardwired electrical reheat	3	--	3	--	--
		coil, switching it ON/OFF
	(1) If all three relays (terminals 20, 21, and 22) are switched OFF, the three-speed fan will likewise be switched OFF.

Using Honeywell's LNS plug-in, you can configure the controller's triac outputs and relay outputs for a variety of different functions. E.g. the triac outputs can be configured for connection to either a floating drive or to a thermal actuator. Once the outputs have been configured, the corresponding devices can be directly connected to them.

	Table 12. Output assignments of Excel 10 W7752 FCU Controller for various actuator types
output type			out 1 terminal			out 2 terminal
		13	14	15	16	17	18
floating		24 Vac	open	close	24 Vac	open	close
1-stage		24 Vac	ON/OFF	—	24 Vac	ON/OFF	—
2-stage		24 Vac	stage 1	stage 2	24 Vac	stage 1	stage 2
3-stage		24 Vac	stage 1	stage 2	24 Vac	stage 1	stage 2
			stage 3			stage 3
PWM		24 Vac	PWM	—	24 Vac	PWM	—
thermal		24 Vac	ON/OFF	—	24 Vac	ON/OFF	—

21 EN2B-0285GE51 R0909