Xylem IM156 R06 1AB2 & 2AB2, Aquavar ABII Variable Speed Pump Controller - Manual (Page 5)

5
4: PIPING
General
NOTE: All plumbing work must be performed by a
qualified technician. Always follow all local, state and
provincial codes.
A proper installation requires a pressure relief valve, a ¼"
female N.P.T. threaded fitting (found on tank tee) for the
pressure sensor, and properly sized pipe. Piping should
be no smaller than the pump discharge and/or suction
connections. Piping should be kept as short as possible.
Avoid the use of unnecessary fittings to minimize friction
losses.
Some pump and motor combinations
supplied with this system can create over
200 PSI. Select pipe and fittings accordingly
per your pipe suppliers’ recommendation. Consult local
codes for piping requirements in your area.
All joints must be airtight. Use Teflon tape or another
type of pipe sealant to seal threaded connections. Please
be careful when using thread sealant as any excess that
gets inside the pipe may plug the pressure sensor.
Galvanized fittings or pipe should never be connected
directly to the stainless steel discharge head or casing
as galvanic corrosion may occur. Barb type connectors
should always be double clamped.
Pressure Tank, Pressure Relief Valve and
Discharge Piping
The standard Hydro-Pro tanks have a pre-charge of 38
PSI. 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. Use a higher tank pre-charge setting if the system
drifts over 5 PSI at a constant flow rate. Use only “pre-
charged” tanks on this system. Do not use galvanized
tanks. Select an area that is always above 34º F (1.1º
C) in which to install the tank and pressure relief valve.
If this is an area where a water leak or pressure relief
valve blow-off may damage property, connect a drain
line to the pressure relief valve. Run the drain line from
the pressure relief valve to a suitable drain or to an area
where water will not damage property. Use the supplied
tank tee to connect the discharge pipe to the pressure
tank and house plumbing. It is allowable to pump to
multiple locations.
Maximum working pressure of most Hy-
droPro tanks is 125 psi. Check the tank
label or instruction manual to verify data.
Installing the Pump
WARNING: Risk of electric
shock - This pump system has
not been investigated for use
in swimming pool areas.
4: PIPING
Hazardous
Pressure
CAUTION
WARNING
Hazardous
voltage
Hazardous
Pressure
CAUTION
Plumb suction and discharge of pump into
piping. 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. Install a check valve between
the discharge of the pump and the pressure sensor and
tank. For additional information refer to Installation,
Operation and Maintenance Instructions supplied with
the pump.
Installing the Pressure Sensor
Install the pressure sensor in the tank tee provided with
the unit. The pressure sensor cable supplied with the
controller is 120 inches long. Locate the controller so
there will be enough cable to properly install the pressure
sensor.
Do not install any shut-off valves, filters or
flow/pressure control devices (except for
a check valve) between the pressure sen-
sor and the discharge of the pump as this could create a
hazardous situation.
Use ONLY the pressure sensor provided with the unit.
Install the pressure sensor into one of the ¼" holes on the
tank tee provided in the kit. Install the pressure sensor
vertically to avoid accumulation of debris in the sensor
port. Do not install the tank tee with the ¼" holes facing
down. Align the connector on the end of the pressure
sensor cable with the mating connector on the pressure
sensor and push it on. The tab will lock it in place.
Prevent water from following the cable and entering
sensor connector by creating a “drip loop” in the cable.
5: MOUNTING THE CONTROLLER
General
Mount the controller in a well ventilated, shaded area
using the supplied mounting kit. The controller must be
mounted vertically. Be sure to leave 8 inches of free air
space on every side of the unit. The controller must be
in an area with an ambient between 34º F (1.1º C) and
104º F (40º C).
Model 2AB2 will automatically decrease
(derate) the maximum output current of the drive (6.9A)
if the ambient temperature exceeds 104º F
(40º C). The maximum output current of the drive will
be decreased by 0.069A for every degree Fahrenheit
above 104º F, or -1%/º F. The maximum output current
of the drive will be decreased by 0.12A for every degree
Celsius above 40º C, or -1.75%/º C. Model 1AB2
does not require ambient derating and will maintain
a maximum output current of 4.2A in high ambient
temperatures.
If installation is more than 3300 feet above
sea level, drive output should also be derated by 2% per
1000 feet above 3300 feet.
NOTE: Do not block the heat sink (fins) and do not
set anything on the units.
WARNING
5: MOUNTING THE CONTROLLER
Hazardous
Pressure
CAUTION
Hazardous
Pressure
CAUTION