Shipment Inspection; Lifting Instructions; Ensure You Have The Right Pump; Checking The Condition Of The Pump - Grundfos CR Serie Instrucciones De Instalación Y Operación

4. Shipment inspection

Examine the components carefully to make sure no damage has
occurred to the pump during shipment. Ensure that the pump is
NOT dropped or mishandled.

4.1 Lifting instructions

Do not use the lifting eyes of the motor for lifting
Caution
the entire pump and motor assembly.
Lift pump assembly with lifting straps that pass through the motor
stool. Ensure that the load is not applied to the pump shaft.
Correct lifting of a CR pump
Fig. 1

4.2 Ensure you have the right pump

Check the pump nameplate to make sure that it is the one you
ordered.
• CR: Centrifugal pump; all parts in contact with the pumped
liquid are made of standard cast iron and AISI 304 stainless
steel
• CRI: Centrifugal pump; all parts in contact with the pumped
liquid are made of AISI 304 stainless steel
• CRN: Centrifugal pump; all parts in contact with the pumped
liquid are made of AISI 316 stainless steel
• CRT: Centrifugal pump; all parts in contact with the pumped
liquid are made of titanium
• CRE: Centrifugal pump with a Grundfos MLE variable
frequency drive motor.

4.3 Checking the condition of the pump

The packing in which your pump arrived is specially designed for
your pump to prevent damage during shipment. As a precaution,
leave the pump in the packing until you are ready to install it.
Examine the pump for any damage that may have occurred
during shipping. Examine any other parts of the shipment as well
for any visible damage.
If the shipment consists of a complete unit
(motor attached to pump end), the position of the
coupling connecting the pump shaft to the motor
Note
Note
shaft is set to factory specifications.
No adjustment is required. If the shipment is a
pump end without motor, follow the adjustment
procedures in section
Pump without motor (CR, CRI, CRN 1s, 1, 3, 5, 10, 15, and 20
only):
If you purchased a pump end without motor, the shaft seal has
been set from factory. Do not loosen the three set screws on the
shaft seal when attaching the motor.
Pump without motor (CR, CRN 32, 45, 64, 90, 120, and 150
only):
If you purchased a pump end without motor, you must install the
shaft seal. The shaft seal is protected in its own box inside the
pump packing crate. To protect the shaft and bearings during
shipment, a transport protector is used. Remove the transport
protector prior to installation of the shaft seal. Read the seal
installation instructions which are included in the pump packing.

4.4 Electrical requirements

Warning
Electrical work: All electrical work should be
performed by a qualified electrician in
accordance with the current national, state, and
local codes and regulations.
Warning
Shock hazard: A faulty motor or faulty wiring can
cause electric shock that could be fatal, whether
the motor is touched directly or the current is
conducted through standing water. For this
reason, safe installation and operation require
proper grounding of the pump to the power
supply ground (earth) terminal.
In all installations, connect the above-ground
metal plumbing to the power supply ground
terminal as described in Article 250-80 of the
National Electrical Code.
Verify the power supply to make sure that the voltage, phases
and frequency match those of the pump. The proper operating
voltage and other electrical information appear on the motor
nameplate. These motors are designed to run on - 10 %/+ 10 %
of the rated nameplate voltage. For dual-voltage motors, the
motor should be internally connected to operate on the voltage
closest to the 10 % rating, i.e., a 208 V motor should be wired
according to the 208 V wiring diagram. The wiring diagram can be
found on either a plate attached to the motor or on a label inside
the terminal box cover.
Do not operate the pump if voltage variations are
Caution
greater than - 10 % /+ 10 %.
13. Replacing the motor.
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