5309004
General Description
The CycleFlo II is a pneumatic pump controller that allows precise control over the cycle rate of the pump and
therefor the flow rate.
The pump cycle is initiated by a 120 volt signal. The pump cycle may be initiated by some other piece of
equipment such as a timer or a pH controller. An isolation relay may be required in some installations. Always
follow local and applicable electrical codes. The CycleFlo II will halt the pump cycle whenever the 120 volt signal
is removed.
Installation
Electrical Connections
An access hole with a strain relief installed has been provided for the external power connection. Due to the
unique requirements of each installation, access holes have not been provided for the other optional external
wiring connections such as the external air
supply valve signal. Have a qualified
electrician determine the proper strain relief,
wire type, and wire size for your particular
application. When positioning or adding
access holes, be careful not to damage any
internal components. Failure to use the proper
strain relief, wire type and wire size can cause
damage to internal components or personal
injury.
There are three connections on the 120V input
signal terminal block (see Fig. 1). The two
right-hand connections are for line and neutral
wires respectively. The left-hand connection is
for a true earth ground.
Fire, Explosion, and Electric Shock
Hazard
To reduce the risk of fire, explosion, or electric
shock:
•The power source conduit is not an
adequate grounding for the system. The
unit must be grounded to a true earth
ground.
•A qualified electrician must complete all
grounding and wiring connections and
check the resistance.
•Refer to your local code for the
requirements for a “true earth ground” in
your area.
