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ML6194, ML6294 NON-SPRING RETURN DIRECT COUPLED ACTUATORS
7 63-2511—1
Fig. 9. ML6294D,F typical wiring diagram.
The ML6194/ML6294 has a plastic housing with two tapped
holes for 1/2 in. (13 mm) conduit fittings.
ML6194 and ML6294 Models with Factory-
mounted Auxiliary Switches (see Fig. 10)
ML6194C,F and ML6294C,F models have two nonadjustable
low voltage rated spdt auxiliary switches that are factory set to
make common to normally open at 12° and 82° rotation from
closed (counterclockwise). See Fig. 10.
Fig. 10. ML6194C,F and ML6294 Actuator wiring for
auxiliary switches.
ML6194 and ML6294 Wiring for Common
Transformer
Fig. 11 through 13 show typical wiring for ML6194 and
ML6294 Non-Spring Return DCA using a common
transformer.
Fig. 11. Common transformer with two controller outputs
and two ML6194A,C or ML6294A,C Actuators.
Fig. 12. Common transformer with two controller outputs
and two ML6194D,F or ML6294D,F Actuators.
OPERATION
The ML6194 and ML6294 Non-Spring Return DCA are
designed to be used in ventilating and air conditioning
installations to operate dampers, ventilation flaps, and louvers
requiring up to 300 lb-in. torque.
The ML6194 and ML6294 Non-Spring Return DCA are
operated by an spdt floating controller. When using an spdt
floating controller, actuator is driven toward fully open
(clockwise) position when controller makes B contact and
toward fully closed (counterclockwise) position when
controller makes W contact. It stops when neither contact is
made.
L1
(HOT)
L2
1
1
2
2
3
3
MOTOR
TIME OUT
24 VAC
B
BLUE
W
YELLOW
T2
RED
T1
BLACK
ML6294
M11280A
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
TIME-OUT FUNCTION AVAILABLE WITH ML6294D,F MODELS.
500 OHM POTENTIOMETER.
ORANGE (OPEN)
TAN
GREEN (CLOSED)
CONTROLLER
12
82
M7877A
COMMON
COMMON
NO
NO
NC
NC
WHITE/RED
WHITE/BLUE
WHITE/YELLOW
BLACK/RED
BLACK/BLUE
BLACK/YELLOW
INTERNAL
A
UXILIARY
SWITCH
3A, 24 VAC
SWITCHES SHOWN AT ACTUATOR (CCW)
CLOSED POSITION.
L1
(HOT)
L2
1
1
BLACK
BLACK
ML6194A,C
ML6294A,C
ML6194A,C
ML6294A,C
M11277A
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
CONTROLLER
CONTROLLER
BLUE
YELLOW
BLUE
YELLOW
L1
(HOT)
L2
1
1
RED
BLACK
RED
BLACK
ML6194D,F
ML6294D,F
ML6194D,F
ML6294D,F
M11278A
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
CONTROLLER
CONTROLLER
BLUE
YELLOW
BLUE
YELLOW