72-910-02
REV. P
6
Flow Sensor
If your controller is provided with a flow switch, install the flow switch so that flow enters into the
bottom of the provided flow switch tee, and out of the side of the tee. The flow switch must always
be installed in a vertical position so that the sensor wire is coming out of the top, and the internal
(red) flow shuttle is able to rise when there is flow and drop when there is not flow. The flow switch
is activated when 1 GPM (3.8 LPM) is going through it, and is deactivated when the flow drops
below 1 GPM (3.8 LPM).
3. Electrical Wiring
1
The controller electronic circuitry is fuse protected. Use of a surge protector and Ground Fault
Circuit Interrupter (GFCI) are strongly recommended!
Controller must be wired in accordance with all applicable electrical codes.
Input power must be 120 or 220VAC Single Phase.
Trained service personnel are required for all electrical connections. This product
does not contain operator serviceable parts.
y Relay connection must be Single Phase and rated for the
same voltage as the input voltage to the product. (e. g. 120VAC MicroTrac
controllers support 120VAC relay attached devices exclusively and 220VAC
MicroTrac controller support 220VAC relay attached devices exclusively.) Do not
apply power until this condition is verified.
Input power cord must be disconnected from power source prior to opening the
product’s enclosure and making any electrical connections.
The controller should be connected to a dedicated power branch (i.e., its
own wiring, circuit breaker, etc.). For best results, the ground should be
independent (true earth) not shared.
breaker, marked as the unit’s disconnecting device
should be included in the installation. It should be in close proximity to the
unit and easily reached by the user.
1
Trained service personnel are required for all electrical connections. This product does not contain operator serviceable
parts.
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