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ILLUSTRATION
Connection of NORMALLY OPEN switching device to
“float switch” terminals 4 and 5 in the junction box
The system is factory-supplied with a jumper wire installed between terminal 4 and 5. Remove this
jumper wire before installing a normally open (N.O.) switch to these terminals.
QUESTION Why is a N.O. switch connected to the N.C. terminals in the junction box?
ANSWER We have a language problem. The ETAPUMP controller that is primarily made for water
supply systems, where a float switch is used to turn off the pump when a tank is full. The “normal”
position for a float switch is defined as “down”, to make the pump turn ON. Other switches use “normal”
to describe the position that makes a device turn OFF.
Switch contact ratings
The remote switch circuit uses 12V at very low current, measured in milliamps.
Contact ratings are not critical.
Manual remote control
The float switch circuit can be used with a manual switch to turn the pump on
and off from a distance. Use any general-purpose on/off switch available from an electronic supply,
electrical supply, marine, or hardware store. Wire it to terminals 4 and 5 as illustrated above.
“TANK FULL” Indicator light
When the pump is stopped by the action of the remote switch circuit, the
TANK FULL light will show. If this is confusing, you can re-label this light with a pen or pencil.
N. O. SWITCH
CONTACTS
in a timer or other
automatic device, or
a manual ON/OFF
switch.
NO 3
Common 4
NC 5
Remote
Float
Switch
Содержание SunCentric P
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