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WIRING APPLICATION
EXAMPLES
Fig. 12 – 19 illustrate typical controller wiring for various
applications.
NOTE: The electronic Series 90 output provided with
modulating T775 models can not drive elec-
tro-mechanical slidewire devices like older
Series 3 modulating meters (prior to Series
6), V9055s, and S984s.
NOTE: For a wiring example of three Series 90
Modutrol Motors, refer to the T775A/B/M
Series 2000 Electronic Stand-alone Control-
lers Installation Instructions (form 62-0254).
L1
(HOT)
24 VAC
L2
LOAD 1
NO
COM
LOAD 2
1
FOR SPECIFIC SENSOR WIRING (TEMPERATURE, HUMIDITY,
PRESSURE, ETC), REFER TO THE SENSOR WIRING SECTIONS
BEGINNING ON PAGE 4.
Fig. 12. Wiring for Two-stage Control – 24 Vac Input
and 24 Vac Load.
HONEYWELL MODUTROL MOTOR WITH
4-20 mA MODULATING INPUT
– +
T1 T2
POWER
1
MODULATING OUTPUT
TERMINAL (MOD 1)
USE SEPARATE TRANSFORMER FOR T775 WHEN USING 24 VAC.
1
Fig. 13. Wiring for mod motor or direct coupled
actuator with 4 to 20 mA control input.
–
C
T
1
+
S
T
V
+
C
NO
NO
C
C
NC
NC
COM
NO
B
–
R
+
W
B
–
R
+
W
T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER
C
NO
COM
1 FOR SPECIFIC SENSOR WIRING (TEMPERATURE, HUMIDITY,
PRESSURE, ETC), REFER TO THE SENSOR WIRING SECTIONS
BEGINNING ON PAGE 4.
Fig. 14. Wiring for Two-stage Control with 120 Vac
(120 Vac Input and 120 Vac Load).
M24554A
NO
COM
1 FOR SPECIFIC SENSOR WIRING (TEMPERATURE, HUMIDITY,
PRESSURE, ETC), REFER TO THE SENSOR WIRING SECTIONS
BEGINNING ON PAGE 4.
Fig. 15. Wiring for Two-stage Control with 240 Vac.
M24557B
9
–
C
T
+
S
T
1
V
+
NO
NO
C
C
NC
NC
–
C
T
+
1
S
T
V
+
C
NO
NO
C
C
NC
NC
120V
COM
NO
LOAD 2
COM
LOAD 1
M33844
240V
COM
NO
LOAD 2
COM
LOAD 1
M33845
62-0255—09
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