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T7770A,B,C,D,E,F,G WALL MODULES

95-7538—4

2

Fig. 3. Mounting wall modules on standard utility 

conduit box or 60 mm wall outlet box.

See Fig. 4 for subbase mounting dimensions.

Wiring

Attach the wires from the device sensor terminals to the 

appropriate wall module terminals. See Fig. 5 through 16.

NOTE: None of these wall modules are compatible with 

W7751A,C,E,G Controllers.

CAUTION

Improper Electrical Contact Hazard.

Screw type terminal blocks are designed to accept 

no more than one 14 AWG (2.5 sq mm) conductor.

Connect multiple wires that are 14 AWG (2.5 sq mm) 

with a wire nut. Include a pigtail with this wire group 

and attach the pigtail to the individual terminal block.

Wiring Modules Without a Removable Terminal Block

Attach the wires as follows:

1.

Connect controller sensor leads to the sensor screw 

terminals.

NOTE: T7770A1006 have a 20K ohm sensor, 

T7770A3002 have a 10K ohm sensor. They 

are for use in averaging for the T7350. They do 

not have E-bus network terminals.

2.

If the module has E-bus terminals, connect the 

controller E-bus leads to these screw terminals.

NOTE: Wire the E-Bus using Level IV 22 AWG 

(0.34 sq mm) plenum or non-plenum rated, 

unshielded, twisted pair, solid conductor wire.

NOTE: Unless otherwise noted, sensor and E-Bus 

terminals are not polarized; reversing the two sensor 

leads does not affect the signal.

Wiring Modules With a Removable Terminal Block

Wire the terminal blocks as follows:

1.

For single wires, strip 3/16 in. (5 mm); for multiple wires 

going into one terminal, strip 1/2 in. (13 mm) insulation 

from the conductor.

2.

If two or more wires are being inserted into one 

terminal, twist the wires together before inserting.

NOTE: When two or more wires are being inserted 

into one terminal, be sure to twist them 

together. Deviation from this rule can result 

in improper electrical contact. See Fig. 17.

3.

Insert the wire in the required terminal location and 

tighten the screw to complete the termination.

4.

Verify wall module wiring with Fig. 5 through 16.

NOTE: Wire the E-Bus using Level IV 22 AWG (0.34 sq mm) 

plenum or non-plenum rated, unshielded, twisted 

pair, solid conductor wire.

Fig. 4. T7770A,B,C,D,E,F,G Subbase 

dimensions in in. (mm).

Fig. 5. Wiring diagram for T7770A20XX Wall Modules.

M17989

STANDARD UTILITY 

CONDUIT BOX

SUBBASE

NO. 6 SCREW

60 mm WALL

OUTLET BOX

SUBBASE

3.5 mm SCREW

FRONT COVER

BUTTON 

HEAD

SOCKET 

CAP SCREW

BUTTON 

HEAD

SOCKET 

CAP SCREW

70

65

60

55

75

auto

 0 1

80

85

FRONT COVER

70

65

60

55

75

auto

 0 1

80

85

15/16 

(23)

M17990

3-3/16 (80)

1-1/4 (32)

5-1/16

(128)

KNOCKOUTS FOR 

EUROPEAN APPLICATIONS

2-3/8 (60)

2-3/8

(60)

STANDARD

UTILITY

CONDUIT

BOX (2 X 4)

MOUNTING

HOLES

SENSOR SENSOR E-BUS

E-BUS

SENSOR

SENSOR

NETWORK BUS

NETWORK BUS

M20359

E-BUS TERMINALS 

ARE NOT USED FOR 

C-BUS DEVICES.

Summary of Contents for T7770A

Page 1: ...tion The maximum length of wire from a device to a wall module is 1000 ft 305m Twisted pair wire is recommended for wire runs longer than 100 ft 30 5m The cover for the wall module is packed separately from the subbase for ease of installation See Fig 2 to release replace the subbase terminal block Fig 2 Releasing replacing terminal block INSTALLATION Mount the T7770A B C D E F G Wall Modules on a...

Page 2: ...t polarized reversing the two sensor leads does not affect the signal Wiring Modules With a Removable Terminal Block Wire the terminal blocks as follows 1 For single wires strip 3 16 in 5 mm for multiple wires going into one terminal strip 1 2 in 13 mm insulation from the conductor 2 If two or more wires are being inserted into one terminal twist the wires together before inserting NOTE When two o...

Page 3: ...ITH T7770C MODEL SENSORS NOTE CHANGE AND VERIFY DIP SWITCH POSITIONS FOR THESE EXCEL CONTROLLERS S4 1 4 ON 2 3 5 OFF 1 2 3 4 5 6 7 8 9 SENSOR GND E BUS E BUS NOTE VERIFY DIP SWITCH POSITIONS S4 1 3 5 ON 2 4 OFF M11403 SETPT 1 2 3 4 5 ON S4 BYPASS LED 1 1 TERMINAL 5 IS USED ONLY WITH T7770C MODEL SENSORS 1 2 3 4 5 6 7 8 9 SENSOR GND E BUS E BUS NOTE VERIFY DIP SWITCH POSITIONS S4 1 2 3 4 ON 5 OFF M...

Page 4: ...w by reversing step 1 on Fig 1 NOTE The locking screw must be installed and tight for a secure T7770 installation 1 2 3 4 5 6 7 8 9 SENSOR AI COM NOTES T7770G HAS A THREE SPEED FAN CHANGE AND VERIFY DIP SWITCH POSITIONS FOR THESE EXCEL CONTROLLERS S4 2 4 ON 1 3 5 OFF M11411 1 2 3 4 5 ON S4 BYPASS FAN LED LED RETURN FAN SPEED SWITCH 1 1 USING AN EXCEL 20 WITH THIS WALL MODULE REQUIRES WIRING AT CON...

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