Piping Requirements; Electrical Requirements; Pump Installation; Change The Position Of The Motor Housing - Bell & Gossett ecocirc XL Guide D'installation, D'utilisation Et D'entretien

4 Installation
Ambient
temperature
-10
86°F (30°C) 100%
104°F (40°C) 100%

4.3.4 Piping requirements

Precautions
CAUTION:
• Use pipes suited to the maximum working pressure of
the pump. Failure to do so can cause the system to rup-
ture, with the risk of injury.
• Make sure that all connections are performed by quali-
fied installation technicians and in compliance with the
regulations in force.
• Do not use a shut-off valve on the discharge side in the
closed position for more than a few seconds. If the
pump must operate with the discharge side closed for
more than a few seconds, a bypass circuit must be instal-
led to prevent overheating of the water inside the
pump.
Piping checklist
• Pipes and valves must be correctly sized.
• Pipe work must not transmit any load or torque to pump flanges.
• Be sure to minimize any pipe-strain on the pump:
• Support suction and discharge piping by the use of pipe
hangers near the pump.
• Line up the vertical and horizontal piping so that the bolt-
holes in the pump flanges match the bolt-holes in the pipe
flanges.
• Do not attempt to spring the suction or discharge lines in po-
sition. This may result in unwanted stress in the pump body,
flange connections and piping.
• The code for pressure piping (ANSI B31.1) lists many types of
supports available for various applications.

4.4 Electrical requirements

• The NEC and local codes must be followed at all times. If a branch
circuit is fitted with ground fault circuit breaker, ensure that the cir-
cuit breaker is suitable for use with inverter-driven appliances.
Electrical connection checklist
Check that the following requirements are met:
• The electrical wires are protected from high temperature and vi-
brations.
• The current type and power supply voltage connection must cor-
respond to the specifications on the name plate on the pump.
• Use wires at least 14 AWG to supply power to the pump. Follow
all local and NEC wiring codes and practices.
The electrical control panel checklist
NOTICE:
The electrical supply must match the electrical rating of the pump. Im-
proper combination could fail to guarantee protection of the unit.
Check that the following requirements are met:
• The control panel circuit breaker is sized properly to protect the
pump against short-circuit.
• The pump has built in overload and thermal protection, no addi-
tional overload protection is required.
The motor checklist
Electrical supply and grounding wires must be suitable for at least
194°F (90°C).

4.5 Pump installation

1. Install the pump according to the liquid flow direction.
6
Fluid Temperature (°C)
60 95
100% 80%
100% 70%
• The arrow on the pump housing shows the flow direction
through the pump body.
110
• The pump must be installed with the motor in a horizontal
position. For more information about allowed positions, refer
70%
to the following image:
55%
Figure 1: Allowed pump installation
2. If necessary, rotate the position of the motor for better visibility of
the user interface.
Section 4.6 below describes the procedure of changing of motor
orientation.
3. If applicable, install the thermal insulation shells.
• Only use the pump thermal shells that are included in the de-
livery. Do not insulate the motor housing, the electronics can
overheat and cause the pump to thermally overload.
• The thermal shells that are included with the pump must only
be used in hot water circulation applications with fluid tem-
perature above 68°F (20°C). The thermal shells are permea-
ble to water vapor.
• If the customer installs the vapor barrier insulation shells for
cold water application, then the pump housing must not be
insulated above the motor flange. The drain opening must
be kept unobstructed in order that the accumulated conden-
sation can run out.
4.6 Change the position of the motor
housing
WARNING:
• Drain the system if possible or close the service valves
on both sides of the pump before disassembling the
pump. The pumped fluid can be pressurized and may
be scalding hot.
• There is the risk of escaping vapor when the motor is
separated from the pump housing.
Electrical Hazard:
Before starting work on the unit, make sure that the unit and
the control panel are isolated from the power supply and
cannot be energized.
CAUTION:
Burn hazard. During operation various surfaces on the unit
will become hot. To avoid burn injury, use heat protective
gloves.
WARNING:
• A strong magnetic field is created when the rotor is re-
moved from or inserted into the motor housing. This
magnetic field can be harmful to pacemaker wearers
and others with medical implants. In addition, the mag-
netic field may attract metal parts to the rotor which can
cause injuries and/or damage the bearing of the pump.
ecocirc ® XL Installation, Operation, and Maintenance manual