While any of the BJW relays can be furnished, the Type 1500 induction relays are indicated. 120 or 240 Volts A.C., or up to size 5 motor starter coils. They provide unit form usage of all pumps under normal operating conditions - yet permit use of full pumping capacity during peak load periods. This alternator provid es momentary time delay to prevent false operation or rapid cycling, and it retains proper sequencing even after a power failure. In addition there are two BIW level detecting relays and all controls are wired to barrier type terminal blocks.
Enclosures are available to meet all indoor and outdoor location requirements.
A complete easy to read system wiring diagram is provided showing all of the field connections so that installation is quick and easy. Also, alternators can be combined with signals and alarms as described on page 4. The standard BIW method of alternation automatically changes the sequence after each pumping operation after all pumps have stopped. Many systems have continuous flow, and multiple pumps are used to handle the varying load conditions. For these applications BIW has a rotating sequence alternator that will change the pumps in operation whenever there is a significant change in the reservoir level.