KRain KRX8 - Page 29

Inputs/Outputs
Pump Connection
® In the above example
this would mean zones
5 through to 8 would
become active and
would cause the pump
to operate against
a closed head
Á This could possibly
cause permanent
pump, pipe and
pressure vessel
damage
® It is mandatory if the
system test routine is
going to be used, that
all unused, spare zones,
should be linked together
and then looped to
the last working zone
with a valve on it
® It is recommended
to always use a relay
between the controller and
the pump starter for single
phase pump installation
COMMON
ST1 ST2 ST3 ST4
COM
SENS
COM
TEST
24VAC
24VAC
COM
COM
ST1PUMP ST2 ST3 ST4 ST5 ST6 ST7 ST8