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Terminal Block (24,36 and 48 stations)
The terminal block for 24, 36 and 48 station models is fitted to the base of the
controller housing and is connected to the top panel via a ribbon cable. To get access
to the terminal block remove the top panel from the controller housing by unscrewing
the two screws in the lower corners of the fascia. (Both ends of the terminal block)
INSTALLATION INSTRUCTIONS
Pump Start Relay Connection (Water supply by pump system)
This controller does not provide mains power to drive a pump. A pump must be driven
via an external relay and contactor setup as detailed below. The controller provides
a low voltage signal that actuates the relay which in turn enables the contactor and
finally the pump.
HINT: Although the controller has permanent memory and thus a default program
will not cause erroneous valve actuation as in some controllers, it is still good
practice when using a system where the water supply comes from a pump to
connect unused stations on the unit back to the last used station. This in effect,
inhibits the chances of the pump ever running against a closed head.
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