Magnum Switch Kit - Pentair AUTOTROL MAGNUM 293 Installer Manual

Installer manual Autotrol Magnum 293 - 298 Logix 742-762 - Description
3.6.4

Magnum switch kit

Optional switch kits can be used on the Magnum Cv valve to provide electrical signalling
capabilities. Used in conjunction with breakaway cams, the switches will provide a signal to
external devices during the various cycles of the valve operations.
3.6.4.1 Switch mounting instructions
1. Fasten the switch-mounting bracket (4) to the Magnum Cv valve (1) using the threadforming
mounting screw (3) (see picture 1). The shorter, clipped edge of the bracket should be
positioned over the guide pin (5) and screw hole located behind the B1/B2 cam (2/6).
2. Attach the switches to the bracket using the screws, nuts and washers provided. The screws
should be inserted so that the washer and nuts are on the backside of the switch SW1.
When mounting a single switch, the switch is mounted to the back of the bracket directly in
front of the number one cam (see picture 1).
When a triple switch is mounted, one switch is located on the back of the bracket and two are
located on the front (see picture 2). For multiple switches it is easiest to slide two switches
onto the screws and then insert the screws through the bracket. The final switch is then
added to the screws and fastened with the washers and nuts (see picture 2). Switches are
mounted with the switch arm adjacent to the breakaway cams and the electrical contacts
directed away from the camshaft (see picture 3).
3. Each switch has three terminals (see picture 4), the common terminal is on the side (labelled
COM1), and two terminals are on the bottom.
The lower terminal which is closest to the camshaft is the closed contact (labelled NC2), the
remaining terminal is the open contact (labelled NO3).
Connect the cable lead wires to the appropriate terminal using the crimp-on terminal
connectors provided. Auxiliary switch cables are available in 3 m (P/N 1041065) and 6 m (P/
N 1041066) lengths. The connections for these cables are: black to common terminal, red to
normally open terminal and green to normally closed terminal.
20 / 110 Ref. MKT-IM-012 / D - 03.02.2022