Xylem IM156 R06 1AB2 & 2AB2, Aquavar ABII Variable Speed Pump Controller - Manual (Page 6)

6
The controller access cover should always
be securely fastened to the control box
due to the dangerous voltage/shock hazard
inside the unit.
6: POWER SUPPLY AND WIRING
Power Supply
The 1151AB2 Controller requires a single
phase power supply of 115 volts +/– 15%.
The 1AB2 and 2AB2 Controllers require
a single phase power supply of 230 volts +/– 15%. All
controllers require a dedicated 20 amp two-pole circuit
breaker. A dedicated circuit means no other appliances
use the same circuit! The output power from the motor
controller is three-phase, variable frequency and variable
voltage. Maximum output voltage and frequency are
line input voltage and 60 Hz, respectively. Low supply
voltage will reduce pump performance.
NOTE: Installation and maintenance MUST be per-
formed by properly trained and qualified personnel.
Always follow the National Electric Code or Canadian
Electric Code, as well as all local, state and provincial
codes when wiring the system.
Wire and Conduit
Do not use wire smaller than 14 AWG. Use of
Metal Conduit with Metal Conduit Connectors is
recommended for all electrical connections.
Output Power Connections
Connect the motor leads for 230 volt or
208 volt operation using the nameplate as a
reference. Connect the output power leads
from the controller to the 3 motor leads in the conduit
box on the motor. Connect the ground (green) output
power lead to the ground screw in the conduit box on
the motor. This step is performed in its entirety at the
factory for complete systems. See diagram 4 for details.
NOTE: If the pump has more than 50 feet of wire
from the controller, consult factory for selection of an
output load filter (load reactor).
Connecting Input Power
Connect the single-phase power supply
leads and Safety Ground wire from a 20
amp two-pole circuit breaker (in the OFF
position) to one side of a 20-amp two-pole disconnect
switch. Connect the input power leads supplied with
the controller to the other side of the disconnect switch.
Be sure to use Metal Conduit with Metal Conduit
Connectors for electrical connections.
The controller has a high leakage current
to ground. The terminals marked "GND"
in the controller must be connected to the
safety ground from the electrical service entrance. Failure
to properly ground the controller or motor will create an
electrical shock hazard.
NOTE: Do not use GFCI protection with this control-
ler. Nuisance tripping will result.
7: STARTING THE SYSTEM
Status Code Indicator Light is not a voltage
indicator! Always turn off disconnect switch
and circuit breaker before servicing.
Once the controller is powered it will re-
main electrically charged for 5 minutes after
power is turned off. Wait 5 minutes after
disconnecting power before opening controller access
cover as there is a severe shock hazard.
Setting the Motor Overload Switches
When the unit is powered, the Motor Over-
load Setting Switches are at a high voltage
potential. DO NOT touch the Motor Over-
load Setting Switches while the power is on.
The Motor Overload Setting Switches adjust the level
of motor overload current protection needed to protect
the motor from damage due to overcurrent conditions.
Turn the circuit breaker and disconnect switch to the off
position, and wait 5 minutes. Remove controller access
cover. On the inside of the access cover is the Motor
Overload Setting table. See Diagram 6 for details. This table
shows the switch setting for the desired Motor Overload
Setting. Read the Service Factor Amps off the motor
nameplate. Use the Motor Overload Setting table to
match the Service Factor Amps (SF Amps) of the motor
to the correct switch setting. See Diagram 5 for details. Set
the Motor Overload Switches according to the correct
combination on the table. If the Service Factor Amps
of the motor do not match any of the Motor Overload
Settings, use the next lowest switch setting. See Diagram 3
for details.
NOTE: The Motor Overload Setting Switches are
preset at the factory for complete systems.
Failure to perform this step will result in
loss of Motor Overload Protection and
will void the Motor Warranty. Nuisance Motor Over-
load Error tripping or motor damage can occur if these
switches are not set properly.
Setting the Pressure
Turn the circuit breaker and disconnect switch to the off
position, and wait 5 minutes. Remove controller access
cover. Open a faucet in the system and turn the breaker/
disconnect switch to the ON position. The pump will
start and pressure will increase to the factory preset 50
PSI. After the pressure has stabilized, use the Increase/
Decrease Pressure Adjust Pushbuttons on the right-hand
side of the controller to adjust the pressure setting.
WARNING
Hazardous
voltage
Hazardous
voltage
DANGER
Hazardous
voltage
DANGER
Hazardous
voltage
DANGER
Hazardous
voltage
DANGER
6: POWER SUPPLY AND WIRING
7: STARTING THE SYSTEM
Hazardous
voltage
DANGER
Hazardous
voltage
DANGER
Hazardous
voltage
DANGER
CAUTION