Receiving The Product; Unpacking The Product; Inspecting The Product; Temporary Storage After Delivery - Grundfos CVM Installation And Operating Instructions Manual

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2. Receiving the product

2.1 Unpacking the product

WARNING
Overhead load
Death or serious personal injury
- Do not lift the product by the eyebolts on the motor.
Unload and handle the product with a sling.

2.2 Inspecting the product

Check that the product received is in accordance with the
order.
Check that the voltage, phase and frequency of the product
match the voltage, phase and frequency of the installation site.
See section
6.3 Pump
identification.
Check the product for defects and damage immediately after
receiving it. Any accessories ordered will be packed in a
separate container and shipped with the product.
If any equipment is damaged in transit, promptly report this to
the carrier's agent. Make complete notations on the freight bill.

2.3 Temporary storage after delivery

If the product is not to be installed and operated immediately
after receiving it, store it in a clean, dry area at a moderate
ambient temperature.
Rotate the shaft by hand periodically, at least weekly, to coat
the bearing with lubricant to delay oxidation and corrosion.
Follow the motor manufacturer's storage recommendations
where applicable.

3. Installing the product

3.1 Location

Locate the pump as close as possible to the liquid supply. Use
the shortest and most direct inlet pipe practical. Refer to
3.4.2 Inlet
pipe.
Locate the pump below system level wherever possible. This
will facilitate priming, assure a steady liquid flow and provide a
positive inlet pressure.
The Net Positive Suction Head (NPSH) available must always
be equal to or exceed the required NPSH specified on the
pump performance curve. Make sure the required NPSH is
provided at the inlet.
Always allow sufficient accessibility space for maintenance
and inspection. Provide a clearance of 610 mm with ample
head room for use of a hoist strong enough to lift the product.
Electrical characteristics must match those specified on the
motor nameplate, within the limits covered in section
4. Starting up the
product.
Do not expose the product to sub-zero temperatures to
prevent the pumped liquid from freezing. If there is frost during
shutdown periods, see sections
8.2 Short-time
shutdown.
and
4. Starting up the product

3.2 Pump foundation

Install the pump permanently on a firm, raised concrete
foundation of sufficient size to dampen any vibration and prevent
any deflection or shaft misalignment. The foundation may float on
springs or be a raised part of the floor.
Proceed as follows:
1. Pour the foundation without interruption to 20-40 mm below
the final pump level. Leave the top of the foundation rough.
Then clean and wet it down.
2. Scour and groove the top surface of the foundation before the
concrete sets to provide a suitable bonding surface for the
grout.
3. Place anchor bolts in pipe sleeves for positioning allowance.
See fig. 1.
4. Allow enough bolt length for grout, base flange, nuts, and
washers.
5. Allow the foundation to cure several days before proceeding
to install the pump.

3.3 Securing the base plate

When the raised concrete foundation has been poured and
allowed to set, proceed as follows:
1. Lower the base plate over the anchor bolts and rest it on loose
adjustment wedges or shims placed near each anchor bolt
and at intervals not exceeding 610 mm (24 inch) along each
side.
2. Place the shims or wedges so that they raise the bottom of the
base plate 20-32 mm (0.75 - 1.25 inch) above the foundation,
allowing clearance for grout.
3. Level the pump shaft, flanges, and base plate using a spirit
level, adjusting the wedges or shims, as required. Note that
CVM pumps do not require alignment.
4. Make sure that the pipes can be aligned to the pump flanges
without placing any strain on either flange.
5. After pump alignment has been established, put nuts on the
anchor bolts and tighten them just enough to keep the base
plate from moving.
6. Construct a formwork around the concrete foundation and
pour grout inside the base plate, as shown in fig. 1. The grout
will compensate for uneven foundation, distribute the weight
of the pump, and prevent shifting.
Use an approved, non-shrinking grout.
7. Allow at least 24 hours for the grout to set before proceeding
with the pipe connections.
After the grout has thoroughly hardened, check the anchor
bolts and tighten them if necessary. Recheck the pump
alignment after tightening the anchor bolts.
Finished grouting
20-32 mm
allowance for
grout
Formwork
Pipe sleeve
Washer
Anchor bolt installation
Fig. 1
Grout
Base plate
Wedges or
shims left in
place
Top foundation
Lug
3

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