Motorized Ball Valve has the advantages of simple structure, compact design, stable operation, fail-safe, timing control, etc. It is widely used in various industries, such as HVAC, water treatment equipment, solar energy equipment, etc.

Different wiring will bring different control effect. In this article, you will learn about 14 ways of wiring COVNA motorized valves. Check it out!

covna motorized-ball-valve

CR2 01 Wiring Diagram ( 2 wires control )

1. RD connect with positive, the BK connect with negative, the valve
closed, the actuator automatically power off after in place , the
valve remains fully closed position
2. BK connect with positive, the RD connect with negative, the valve
open, the actuator automatically power off after in place, the valve
remains fully open position .
* Suitable Working Voltage: DC5V/DC12V/DC24V
* Exceeding the working voltage is forbidden

wiring diagram of motorized valve

CR2 02 Wiring Diagram ( 2 wires control – Spring return in case of the power failure)

1. When SW is closed , the valve open. the actuator automatically
power off after in place
2. When SW is open, the valve closed, the actuator automatically
power off after in place
* Suitable Working Voltage: AC/DC9-35V
* Exceeding the working voltage is forbidden

wiring diagram of motorized valve

CR3 01 Wiring Diagram (3 wires control )

1. RD & GR connect with positive, BK connect with negative
2. When OPEN (RD) & SW connected, the valve open, the
actuator automatically power off after in place, valve remains
fully open position
3. When CLOSE (GR) & SW connected, the valve closed, the
actuator automatically power off after in place, valve remains
fully closed position
* Suitable Working Voltage: DC5V, DC12V, DC24V
* Exceeding the working voltage is forbidden

wiring diagram of motorized valve

CR3 02 Wiring Diagram (3 wires control )

1, RD connect with positive, the BK & GR connect with negative
2, SW CLOSED, the valve OPEN, the actuator automatically power off
after in place.
3, SW OPEN, the valve CLOSED, the actuator automatically power off
after in place.
* Suitable Working Voltage: DC9V-35V
* Exceeding the working voltage is forbidden

wiring diagram of motorized valve

CR3 03 Wiring Diagram (3 wires control )

1. RD& GR connect with positive, the BK connect with negative
2. SW CLOSED, the valve OPEN, the actuator automatically power off
after in place
3. SW OPEN, the valve CLOSED, the actuator automatically power off
after in place.
* Suitable Working Voltage: AC/DC9-35V/AC110-230V
* Exceeding the working voltage is forbidden

wiring diagram of motorized valve

CR3 04 Wiring Diagram (3 wires control )

1. RD & GR connected with positive, and the BK connected wit negative
2. When RD & SW connected, the valve closed, the actuator
automatically power off after in place , remains fully closed position
3. When GR & SW connected, the valve open, the actuator automatically power off after in place, remains fully
open position
* Suitable Working Voltage: DC5V, DC12V, DC24V, AC/DC9-35V
* Exceeding the working voltage is forbidden

wiring diagram of motorized valve

CR3 05 Wiring Diagram (3 wires control )

1. RD connect with positive, GR connect with SW & positive
2. BK connect with negative
3. When the SW of GR closed, the valve closed, the actuator
automatically power off after in place , remains fully closed position
4. When the SW of GR open, the valve open, the actuator
automatically power off after in place , remains fully open position
* Suitable Working Voltage: DC5V/DC12V/DC24V
* Exceeding the working voltage is forbidden

wiring diagram of motorized valve

CR3 06 Wiring Diagram (3 wires control )

1. RD connect with positive, GR connect with SW & positive
2. BK connect with negative
3. When the SW of GR closed, the valve open, the actuator automatically
power off after in place , remains fully closed position
4. When the SW of GR open, the valve closed, the actuator automatically power off after in place , remains fully open position.
* Suitable Working Voltage: DC12V, DC24V, AC/DC9-35V, AC110-230V
* Exceeding the working voltage is forbidden

wiring diagram of motorized valve

CR4 01 Wiring Diagram (4 wires control )

1. RD&BK are connected to the power, WT&YW are connected
to the controlled wiring.
2. When the sw is closed, the valve open
3. When the sw is open, the valve closed
4. Suitable working voltage:AC110v-230V
5. Exceeding the working voltage is forbidden

wiring diagram of motorized valve

CR5 01 Wiring Diagram (With Feedback Signal)

1. RD connect with positive, the BK connect with negative, the
valve closed, the actuator automatically power off after in place
2. BK connect with positive, the RD connect with negative, the
valve open, the actuator automatically power off after in place
3. BL & WT are connect when the valve open fully, YW&WT are
connect when the valve closed fully
* Suitable Working Voltage: DC12V, DC24V
* Exceeding the working voltage is forbidden

wiring diagram of motorized valve

CR5 02 Wiring Diagram (5 Wires Control, With Feedback Signal)

1. When SW is closed , the valve open. the actuator automatically power off after in place

2.  When SW is open, the valve closed, the actuator automatically
power off after in place BL & WT are connect when the valve
open fully, YW & WT are connect when the valve closed fully

* Suitable Working Voltage: AC/DC9-24V, AC/DC110V-230V

* Exceeding the working voltage is forbidden

wiring diagram of motorized valve

CR7 01 Wiring Diagram (7 Wires Control, With Feedback Signal)

1. RD connect with positive
2. GR connect with SW and negative wiring
3. BK connect with negative wiring
5. SW closed. the valve closed, and keeping fully closed.
6. BL & GY connect with the valve’s fully open signal wiring
7. YW & WT connect with the valve’s fully closed signal wiring.
* Suitable Working Voltage: DC9V-35V
* Exceeding the working voltage is forbidden
* Feedback with load ability
①The Max. off voltage: DC36V AC220V
②The Max. off current: 0.4A

wiring diagram of motorized valve

CR7 02 Wiring Diagram (7 Wires Control, With Feedback Signal)

1.RD & GR connect with positive, the BK connect with negative
2. When RD & SW connected, the valve open, the actuator
automatically power off after the valve fully open.
3. When GR & SW connected, the valve closed, the actuator
automatically power off after the valve fully closed.
4. BL & GY connect with the valve’s fully open signal wiring
5. YW & WT connect with the valve’s fully closed signal wiring
* Suitable Working Voltage:DC5V, DC12V, DC24V, AC/DC9-35V
* Exceeding the working voltage is forbidden
* Feedback with load ability
①The Max. off voltage: DC36V AC220V ②The Max. off current: 0.4A

wiring diagram of motorized valve

CR7 03 Wiring Diagram (7 Wires Control, With Feedback Signal)

1. RD& GR connect with positive, the BK connect with negative
2. SW CLOSED, the valve OPEN, the actuator automatically
power off after in place
3. SW OPEN, the valve CLOSED, the actuator automatically
power off after in place
4. BL & GY connect with the valve’s fully open signal wiring
5. YW & WT connect with the valve’s fully closed signal wiring.
* Suitable Working Voltage: DC12V, DC24V
* Exceeding the working voltage is forbidden

wiring diagram of motorized valve

CR7 04 Wiring Diagram (7 Wires Control, With Feedback Signal)

1. RD & BK are connected to the power, WT & YW are connected
to the controlled wiring.
2. When the SW is closed , the valve open
3. When the SW is open , the valve closed
4. BL & GY connect with the valve’s fully open signal wiring
5. YW & WT connect with the valve’s fully closed signal wiring.
* Suitable Working Voltage: AC/DC110V-230V
* Exceeding the working voltage is forbidden

wiring diagram of motorized valve

Manual override instructions:

In case of an electric supply failure, it is possible to operate the actuator manually:
1. Power must in off position when start the manual override.
2. Gently pull up the knob about 3mm, then revolve the knob around left and right to control the valve open or close.
3. When the red needle in the indicator pointing to S, means the valve is closed. When pointing to 0, means the valve is open.
4. After finish the manual override operation, must press down the knob, so that for the normal electric operation.