Bell & Gossett 6 71 075 110A The ecocirc auto/vario Series Pumps - Manual (Page 3)

which could cause damage to the unit. After installation, the end product must comply with the relevant product standard. Product
standard regulations must be observed during fitting and electric installation. Installation and electric connections shall be carried
out by professionals only.
Wiring InstructionsÉ
1. Loosen the screw securing the motor cover (wiring compartment), and remove
the screw & cover.
2. Attach the appropriate size connector to one of the holes in the side of the
conduit box.
3. Using a minimum size of 14 AWG copper electrical wire (refer to your local code
for wiring instructions), wire the motor to a single phase power source that
matches the electrical rating on the pump nameplate. See Fig.3. Use the size of
electrical wire as dictated by local code.
4. Connect the ground wire to one of the ground screws inside the
conduit box. See Fig. 3.
5. Make sure electrical connections are secured before replacing the motor cover.
Operation
1. Completely fill and pressurize the system before operating the pump. Do not start the pump until the system has been filled.
Make sure the isolation valves are fully open and that there is water in the pump.
2. Purge air from the system prior to operating the pump. These two steps are very important. The pump should never be allowed to
run dry. This can severely damage the pump and will void the warranty.
3. Operate the pump for approximately 10 minutes at full speed (speed 7 on the dial) to purge any remaining air in the system. It
may be necessary to open a discharge valve, port and/or fixture to ensure that the air has been purged. The pump should be running
quietly. If a “gurgling” noise is present it may mean there is still air in the system. Turning the pump on and off several times will
generally clear the remaining air. If this “gurgling” noise persists, recheck the system and re-purge the air. System and pump should
now operate quietly and efficiently.
WARNING: - Electrical Grounding Hazard - Adequate electrical grounding is required for the safe operation of B&G Pumps.
Ground the pump back to the service using a copper conductor at least the size of the circuit connectors supplying the
pump. Connect the ground wire to the ground terminal in the wiring compartment. Failure to follow these instructions could
result in serious personal injury, death and/or property damage.
WARNING: - Risk of Electric Shock - Do not install this pump in swimming pool or marine areas. Failure to follow these
instructions could result in serious personal injury, death and/or property damage.
Electrical SafetyÉ
WARNING: - Electrical Shock Hazard - Electrical connections are to be made by a qualified electrician in accordance with all
applicable codes, ordinances and good practices. Failure to follow these instructions could result in serious personal injury,
death and/or property damage.
MaintenanceÉ
1. Since the rotor/impeller unit (see exploded views) is the only moving part, its
replacement is simple.
2. After the power has been disconnected using a counter clockwise motion remove
the screw ring housing to motor connection.
3. Remove the “O” ring from the pump housing.
4. Remove and replace the rotor.
5. Replace the “O” ring with a new one and reverse the disassembly procedure to reassemble
the pump.
6. Since these units are self lubricated by the pumped fluid, they never need external lubrication.
7. Pump should be drained when subjected to freezing temperatures.
8. If provided, the suction line strainer should be cleaned at regular intervals.
WARNING: Ensure that the unit is disconnected from the power source before attempting to service or remove any
components.
WARNING: - Electrical Shock Hazard - Disconnect and lockout the power before servicing. Failure to follow these
instructions could result in serious personal injury, death and/or property damage.
Removal of Pump From Existing System For Replacement
Fig. 3
WARNING: - Risk of Electric Shock - If this pump is supplied with a grounding conductor and grounding-type attachment
plug, to reduce the risk of electric shock, be certain that it is connected only to a properly grounded, grounding-type
receptacle.