(DG) ACU-300 Solenoid with other vendor's pump - 12V or 24V selectable?

[Derek - Raymarine - Moderator]

Hi JBuss
Thankyou for your enquiry.

The ACU300 can be used to control the solenoids fitted to constant running pumps manufactured by other suppliers.

However, it is important that the solenoids conform to the following specification

Note: If power packs other than the Autohelm models are used the following
solenoid specifications must comply-

The pull in Voltage - less than 8V (16v for 24v systems)
The drop out Voltage - greater than 2V
The operating Current - less than 5A
The Solenoid Voltage must be the same as the course computer.
The response time of the solenoid valve is less than 150 to 180 milliseconds

Please note the oil viscosity, flow and pressure all effect the response time of the solenoids.

Please also note that 'flyback' diodes need to be fitted in parallel with the solenoid coils

regards