Multi-point
purgers are designed for systems that have as many as 34 points to be
purged. The Multi-Point purger has an operation similar to the XR-1501
due to a similar float switch. The PLC Control has the advantage over
other purgers due to the ability to start and stop itself. The PLC
control operates all operational solenoids for the purger along with up
to 34 purge point solenoid valves. This gives the advantage over clock
timers in the fact that the controller can "learn" as it cycles through
the system. As the purger accumulates air and purges, the controller
records and prioritizes each purge point in its memory. The next time
through the purge points, the auto-adaptive controller opens the points
in the order in which the most air was found on the previous cycle. This
leads to the most efficient purge operation possible. As with all
Armstrong purgers, the XR-1502 series is available ready to pipe or can
be pre-piped on a frame for easy installation.
Armstrong also offers a retrofit package for existing, older
Arrmstrong systems. Consult the factory or your Armstrong
Representative.
Product Literature
Installation and Maintenance