Arkal B Series, Руководство по техническому обслуживанию

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SERIES - B
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Appendixes
Appendix 1 - AC Controller
Setting The Constant Parameters
The constant parameters can be set by the internal DIP-SWITCH. The following chart describes
the programming and control options of each DIP switch in the system. The DIP-SWITCH is
located at the bottom right corner of the electronic board.
** When the DP signal does not stop, then, after the specified number of consecutive back
flushing cycles it will be considered a failure. An alarm will indicate system failure, and there will
be no more backflushing by DP until the DP signal is discontinued and the right rotary switch
turned OFF and back to its normal position. If the selected flushing mode include time override,
the time based cycles will continue uninterrupted according to the selected interval.
Main Valve
The unit can control a downstream main valve, which is turned off while flushing to increase
pressure. When such a main valve is incorporated into the system, DIP SWITCH No. 1 must be
set to ON. In a system without a main valve it will remain OFF. The main valve will be connected
last on the terminal board after the last flushing valve.