Honeywell T7770A Installation Instructions page 4

T7770A,B,C,D,E,F,G WALL MODULES
1
9 8 7 6 5 4 3 2 1
FAN
SPEED
SWITCH
1 USING AN EXCEL 20 WITH THIS WALL MODULE REQUIRES WIRING
(AT CONTROLLER) THE 1500 OHM BAG ASSEMBLY RESISTOR IN SERIES
WITH TERMINAL 7.
Fig. 15. Wiring diagram for T7770G10XX Wall
Modules wired to Excel 600/500/100/80/20.
T7350 SUBBASE
T4
T4 T3
1
T7770A3002
1 THE T7771A3002 IS A 10K OHM SENSOR.
Fig. 16. Two T7770A3002 Wall Modules wired to a T7350
for temperature averaging.
Automation and Control Solutions
Honeywell International Inc. Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North 35 Dynamic Drive
Golden Valley, MN 55422 Scarborough, Ontario
M1V 4Z9
95-7538—4 B.B. Rev. 7-04
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)
S4
5 4 3 2 1
ON
M11411
T3
T4 T3
1
T7770A3002
M22408
1.
STRIP 1/2 IN.
1/2
(13 MM) FROM
(13)
WIRES TO BE
ATTACHED AT
ONE TERMINAL.
2.
TWIST WIRES
TOGETHER
WITH PLIERS
(A MINIMUM OF
THREE TURNS).
Fig. 17. Attaching two wires at wall module terminals.
When all wiring is complete, attach the cover of the
T7770A,B,C,D,E,F,G Wall Module by reversing step 3
of Fig. 1. Insert and tighten locking screw by reversing
step 1 on Fig. 1.
NOTE: The locking screw must be installed and tight for
a secure T7770 installation.
ACS Control Products
Honeywell AG
Böblinger Straße 17
D-71101 Schönaich
Phone (49-7041) 637-01
Fax (49-7041) 637-493
CONTROLLER OR
WALL MODULE
E-BUS CONNECTOR
TERMINALS
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.
M11413
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