Thread: Please help with MAC valves

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OK I come across a couple of valves p# 52a-21-a0a-dm-ddaj-4jc
the problem i am having is wiring them up no wire diagrams in package and on the side of the valves it call out 24V. Has any one worked with mac valves that can help...
Thanks in advance...

I can look tomorrow at work we use MAC valves every once in awhile.

that would be awesome

The 24 v is the voltage required to operate the coil. In this case it is 24 volts dc. do they have wires attached? If so then you need 24vdc+ on one wire and 24vdc- on the other one. If you have lugs on the coil the lugs on each side are the power lugs and the center one is ground. Hope this helps

Actually, you want + 24 on one wire and GROUND on the other (they make -V power supplies, but - 24V and + 24V = 48V and a blown coil). The coil works the valve, and the air flow is changed. The valves themselves range from 2 to 5 port (and sometimes 2 coil) depending on the intended use.

Bill Ehrsam.

[QUOTE=themindshaft;826435]Actually, you want + 24 on one wire and GROUND on the other (they make -V power supplies, but - 24V and + 24V = 48V and a blown coil). The coil works the valve, and the air flow is changed. The valves themselves range from 2 to 5 port (and sometimes 2 coil) depending on the intended use.

Bill Ehrsam.[/QUOTE

My mistake, that's what I meant..............

gravezombie,
Ok....
According to our friendly customer support at MAC. This valve has connectors on it for a square valve connector.
The male pins are sticking out of the valve with the connector removed.
While looking down on the valve with the separate pin closest to you (ground pin) the positive 24 VDC will connect to pin 1 on the left, and the common 0VDC will connect to pin 2 on the right.