Wiring details – Honeywell EXCEL 10 W7753A User Manual

Page 5

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EXCEL 10 W7753A UNIT VENTILATOR CONTROLLER

5

95-7520—02

Fig. 7. Termination modules (place a wire nut on each remaining wire that is not connected to a controller or device).

NOTE: When two or more wires are to be attached to the same terminal, other than 14 AWG (2.0 mm

2

), be sure to twist them

together. Deviation from this rule can result in improper electrical contact. See Fig. 8.

Wire to the terminal blocks as follows:

1. Strip 3/8 in. (10 mm) insulation from the conductor.

2. Insert the wire in the required terminal location and

tighten the screw to complete the termination.

3. If two or more wires are being inserted into one terminal

location, strip 1/2 in. (13 mm) of insulation from the con-

ductors then twist the wires together a minimum of three

turns before inserting them.

4. Cut the twisted end of the wires to 3/16 in. (5 mm)

before inserting them into the terminal and tightening

the screw.

5. Pull on each wire in all terminals to check for good

mechanical connection.

Wiring Details

The W7753A Controller has the terminal arrangements shown

in Fig. 9 through 14. Connection for operator access to the

E-Bus is provided by plugging the Serial LonTalk® Adapter

(SLTA) connector into the E-Bus jack.

NOTE: If an Excel 10 Controller or Zone Manager is not

connected to a good earth ground, the controller

internal transient protection circuitry is compromised

and the function of protecting the controller from

noise and power line spikes cannot be fulfilled. This

can result in a damaged circuit board and require

replacement of the controller. Refer to job drawings

for specific installation wiring diagrams.

Fig. 8. Attaching two or more wires at terminal blocks.

M12690

PART NO. 209541B

TERMINATION

MODULE

PART NO. 209541B

TERMINATION

MODULE

W7753A

1415

1415

W7753A

1415

W7753A

BROWN

BROWN

ORANGE

ORANGE

3/8

(10)

STRIP 3/8 IN. (10 MM) FROM WIRES

TO BE ATTACHED AT ONE TERMINAL.

1.

2. TWIST WIRES TOGETHER

WITH PLIERS (A MINIMUM

OF THREE TURNS).

TWO 14 AWG

(2.0 MM

2

) WIRES

3. CUT TWISTED END OF WIRES TO 3/16 IN. (5 MM)

BEFORE INSERTING INTO TERMINAL AND TIGHTENING

SCREW. THEN PULL ON EACH WIRE IN ALL TERMINALS

TO CHECK FOR GOOD MECHANICAL CONNECTION.

M10086

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