FCU Wiring Diagram

Description

Display the wiring diagram for the controller.

Purpose

Display the wiring diagram for the controller.

Mode

Configuration can be performed with the wizard Off-line or On-line.

Procedure

Click the Wiring button on the left pane to open the Wiring Configuration page.
Enter information into available fields.
Click Commit to save the settings or Reset to revert to the last saved settings.
Click Back to display the PID Configuration page.

Fields

DI1 Window / Occupancy / Air Flow / Changeover

Name	Definition
Wall Module	Use these terminals to connect the Wall Module. Override LED Setpoint Bypass Button Room Temp Sensor

LON (E-Bus)

These terminals are used to connect the LON Bus FTT-10A. The LON Bus is insensitive to polarity, eliminating wiring errors during installation. Recommended wire size is level IV 22 AWG nonshielded, twisted pair, solid conductor wired.

Output 1 / Output 2		Terminal 14/15	Terminal 17/18
	Floating	13 on = open valve	15 on = open valve
		14 on = close valve	16 on = close valve
	1-stage	13 = on/off	15 = on/off
		14 = not used	16 = not used
	2-stage	13 on = stage 1	15 on = stage 1
		13 on + 14 on = stage 2	15 on + 16 on = stage 2
	3-stage	13 on = stage 1	15 on = stage 1
		14 on = stage 2	15 on = stage 2
		13 on + 14 on = stage 3	15 on + 16 on = stage 3
	PWM	13 = PWM	15 = PWM
		14 = not used	16 = not used
	Thermal	13 = Pulse modulated	13 = Pulse modulated
		14 = not used	14 = not used

Characteristics

24 VAC, 250 mA max continuous, 650 mA max surge

Fan Relays

These terminals are used to connect a Fan.

Characteristics

20 to 253 VAC, 3 A max

Power Mains In

Power Supply

W7752D and W7752E: 230 VAC + 10%, -15%, 50/60Hz

W7752F and W7752G: 115 VAC + 10%, -15%, 50/60 Hz

Power Consumption

W7752D and W7752E: 30 VA max

W7752F and W7752G: 30 VA max

Operational temperature

32 Deg.F to 122 Deg.F (0 Deg.C to 50 Deg.C)

Reheat Relay

These terminals connect a Electric Reheat.

Characteristics

20 to 200 VAC, 10 A max.

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