Xylem IM182 Balanced Flow - Manual (Page 4)

4
Ratings
Refer to serial number label on enclosure.
Required Materials
• BF Pump Controller with Transducer and Transducer Wire
• Pump (water end)
(see Speed Selector Switch for 60 Hz or 80 Hz Operation)
• Motor: 230 V, three phase (3Ø), 3450 RPM
• Pressure Relief Valve – piped to a drain for safety
• Pressure Gauge – for setting system pressure
• Heat Shrink Kit – one required for each underwater or
underground splice (mandatory)
• Tank Tee or (2) ¼" NPT Female pipe fittings for pressure
sensor and pressure gauge connections
• Pipe and fittings – as necessary per each system
• Disconnect Switch: 230 V, 2 pole, properly sized
(see Controller, Breaker, Generator Sizing Table)
• Copper Wire: Minimum 75ºC rated wire, double
jacketed is recommended but not mandatory
(see Wire Sizing table)
• Tank: diaphragm style tank
(see Tank Sizing Section and Chart)
2: INSTALLATION
Determine where the Controller, Pressure Tank and
Transducer will be located before starting the installation.
Controller
The controller is rated NEMA 3R (Raintight) so it may be
located outdoors. It must be mounted vertically. Locate
the enclosure in a shaded area where the temperature
stays within 0ºF to +122ºF (-18ºC to +50ºC). Since the
controller is designed for outdoor mounting it may be
located at the wellhead.
Opening Controller Cover
Lay the controller on a flat surface or hang
on wall before removing the cover screw.
Failure to do so may result in dropping and damaging the
unit. Once screw is removed, lift the cover up and out to
remove. There is a locking tab on the bottom of the unit to
accommodate a padlock if so desired.
Mounting Controller
Three screws are provided for mounting the enclosure.
Using the enclosure as a guide, select a mounting location.
First install the top screw in the mounting surface leaving
the head of the screw approximately 1 ⁄
8
" from the surface.
Hang the enclosure on this screw. Finish by installing the
two bottom screws and tightening the top screw. Be sure
to leave a minimum of 6" of clearance on each side of the
controller to ensure proper cooling.
Pump and Piping
Do not install any valves, flow control
devices or filters between the pressure
transducer and the pump. It is allowable to run branches
off the pipe between the pump and transducer as long
as no flow restricting devices are between the pump and
transducer.
NOTICE: The terms Transducer and Pressure Sensor are
equal and interchangeable.
2: INSTALLATION
EXPLODING TANK CAN INJURE OR
KILL.
Always protect the tank from over pressure by installing
a pressure relief valve large enough to limit the system
pressure below the maximum working pressure of the tank.
Install the tank at a point in the system where the maximum
possible system pressure cannot exceed the maximum
working pressure of the tank. Install the pressure relief valve
at the tank.
Avoid property damage caused by pressure
relief valve opening. Pipe the pressure relief
valve discharge to a drain or other location so that property
damage and flooding will not occur.
Locate the tank and transducer where they
will not freeze.
Ensure the system pressure setting does not exceed the
maximum working pressure of the tank.
For optimum performance, as a minimum, we recommend
using the same size pipe as the pump discharge between the
pump and the tank. Smaller diameter pipe may severely limit
the maximum capacity of the system. On long runs, larger
pipe may be beneficial for optimum performance and flow.
If using a torque arrestor, install it on the
discharge pipe before connecting pipe to
the discharge head.
Diaphragm Tank Sizing and Pre-Set Pressure
Recommendations:
Diaphragm type (captive air) tanks are required on these
systems.
Table 1: Tank Sizing Selection
Maximum Recommended Tanks
Pump GPM Total Volume Order No. or Order No.
10 2 V6P TP6P
23 4.5 V15P TP15P
41 8.2 V25P TP25P
70 13.9 V45 TP45
100 19.9 V60 TP60
Use Total Tank Volume, not drawdown volume, to select
the proper tank size. The total tank volume should be
approximately 20% of the pump’s maximum flow. For
example, when using a 10 gpm pump the system requires a
2 gallon (total volume) tank.
The tank sizing recommendations are field proven to
prevent objectionable pressure drops on start-up and
provide smooth operation for the majority of variable speed
pump systems.
For a 5 PSI Pressure Drop Set-up:
Set the tank pressure, while tank is empty of water, to 20 psi
below the desired system pressure setting. Ex. for a 50 psi
system pressure, charge the tank to 30 psi.
For a 20 PSI Pressure Drop Set-up:
Start with the tank pre-charge set 30 psi below the set
point, this setting may need minor adjustment for optimum
performance as all systems and piping are slightly different.
Splicing Drop Cable To Motor Leads
The underwater connection where the drop cable connects
to the motor wires must be done using a waterproof heat
shrink kit. To make the connection, first strip the wires
½" and place the heat shrink tubes over the wires. Then,
WARNING
CAUTION
CAUTION
CAUTION
WARNING
CAUTION