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4. Piping (cont'd.)
requires a 2 gallon (total volume) tank, i.e. a V6P or TP6P . A 50 gpm pump requires a minimum 10 gallon total
volume tank, a V25 at 8.2 gallons may be too small, in this case we recommend the next larger tank, a V45 or
TP45 at 13.9 gallons. Due to the many variables in a pump system there may be installation where a smaller
than recommended tank will operate the system properly. The tank sizing recommendations are fi eld proven
to prevent objectionable pressure drops on start-up and provide smooth operation for the majority of variable
speed pump systems. Systems with fast acting fl ush valves or yard hydrants are examples of where a tank
should not be undersized.
Set the tank pressure, while tank is empty, to 20 psi below the desired system pressure setting. Ex. for a 50 psi
system pressure, charge the tank to 30 psi. Tanks sold by ITT Water Products brands are all factory pre-charged
to 38 psi. Locate the tank where it will not freeze.
Installing the Pump
Warning
Risk of electric shock - This pump system has not been investigated for use in
WARNING
swimming pool areas.
Hazardous
voltage
Plumb suction and discharge of pump into piping. Be sure to install a check valve on the suction side of
CAUTION
the pump. Use a minimum of 6 inches of straight pipe between the check valve and the suction of the
Hazardous
Pressure
pump. Locate the pump as near liquid source as possible. When pumping out of an atmospheric tank
locate the pump below the level of the liquid in the tank. All piping must be supported independently
of the pump. Be sure that suction and discharge piping are in line with the suction and discharge of the pump. For
additional information refer to Installation, Operation and Maintenance Instructions supplied with the pump.
Note
If pump is drawing water from an above ground storage tank, a fl apper type check valve may be
necessary, instead of spring loaded valve, on suction side of pump.
Installing the Pressure Transducer
Install the pressure transducer in the water line near the tank. No valves can be between transducer and
tank. The pressure transducer cable supplied with the controller is 80 inches long. Locate the controller so
there will be enough cable to properly install the pressure transducer. Longer cables are available. Maximum
recommended transducer cable length is 100'. Order numbers PSC300 for 25', PSC600 for 50' or
PSC1200 for 100'.
Caution
Do not install any shut-off valves, fi lters or fl ow/pressure control devices between the
CAUTION
pressure transducer and the discharge of the pump as this could create a hazardous situation.
Hazardous
Pressure
Use ONLY the pressure transducer provided with the unit. Install the pressure transducer downstream from the
pump check valve. Do not install the pressure transducer upside down. Align the connector on the end of the
pressure transducer cable with the mating connector on the pressure transducer and push it on. The tab will
lock it in place.
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