Honeywell Excel 10 Installation Instructions page 3

Wiring Details
Connections to the Chilled Ceiling controllers are made at
two internal terminal blocks accessible beneath the front
cover. No tools are required to remove the front cover.
Simply pull away from the subbase as shown in Fig. 4.
Fig. 4. Terminal cover removal.
Fig. 5. Mounting on wall outlet box.
Use a minimum wire size of 20 AWG (0.5 mm
output connections. The maximum length of all input / output
cables and wall module interface cables is 65 ft (20 m). Main-
tain 3 in. (76 mm) minimum spacing between signal lines 1-
10 and Triac output and power supply wiring.
Fig. 8 illustrates the terminal assignments of the controllers.
Table 1 lists Triac output assignments for various actuator
types. Refer to job drawings for specific wiring diagrams.
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W7763C,D,E CHILLED CEILING CONTROLLERS
IMPORTANT
Wire to the terminal blocks as follows:
1. Strip 1/2 in. (13 mm) insulation from the conductor.
2. Insert the wire in the required terminal location and
tighten the screw to complete the termination. Insure
that the wire entering the terminal block does not ex-
tend above the numbered face of the terminal block to
avoid contact between the wires and the printed circuit
board on the underside of the front cover (see Fig. 6.)
2
) for all input /
IMPORTANT
3
Screw type terminal blocks are designed to accept
no more than one 14 AWG (2.5 mm
Multiple wires that are 14 AWG (2.5 mm
connected with a wire nut. Include a pigtail with this
wire group and attach the pigtail to the individual
terminal block.
Fig. 6. Terminal block connections.
When two or more wires are to be attached to the
same terminal, be sure to twist them together.
Deviations from this rule can result in improper
electrical contact. See Fig. 7. Local wiring codes
may take precedence over this recommendation.
2
) conductor.
2
) can be
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