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English (US)
4.1.2 Delivery
On delivery, the pump and any accessories supplied with it must
be checked for transport damage. this also applies when the
pump is delivered to the installation site.
If the pump, or any of the pump accessories, has been damaged,
contact and inform your local Grundfos company before
continuing to install the pump. Do not dismantle a damaged new
pump for further inspection, unless instructed by your local
Grundfos company.
The packaging material must be disposed of according to local
regulations.
4.1.3 Storage
Before storing a pump, make sure that the pump is empty, that is,
no liquid is visible in the pump inlet and outlet. If the pump has
recently been removed from the refrigeration system, oil and/or
water condensate may be present in the pump. If so, remove the
appropriate plastic covers or blanking flanges.
Store the pump under the storage conditions specified in the table
below:
5. Installing the product
The Grundfos CRN-H MAGdrive pump is completely assembled
and tested at the factory. Proper installation assures long life of
the pump. Proper installation includes pump mounting, system
layout and adequate pump protections. The refrigerant supplied
to the pump is to be liquid refrigerant free of vapors and solids.
The pump must be installed horizontally on a plane surface with
the outlet connection pointing straight up. Fix the pump so it
cannot be moved during startup and operation. Install the pump
with easy access for inspection, maintenance and service.
The chamber stack is removed from the pump sleeve as one unit
(back pull-out). When selecting the pump location and
orientation, ensure that there is enough space behind the pump
to allow pump replacement.
In addition, consider the following installation issues:
• Use a drip tray for collection of water condensate from the
pump surface if the refrigerant temperature is below the dew-
point temperature of the surrounding air. The drip tray is to
have a drain connection.
• Clearance or room for buildup of frost (ice) on the pump
surface of non-insulated pumps when refrigerant temperatures
are below 32 °F (0 °C).
5.1 Foundation
The foundation and installation must be carried out in accordance
with the following instructions
We recommend to install the pump on a concrete foundation
which is heavy enough to provide permanent and rigid support to
the entire pump. The foundation must be capable of absorbing
any vibration, normal strain or shock. As a rule of thumb, the
weight of the concrete foundation must be 1.5 times the weight of
the pump and base plate. The concrete foundation must have an
absolutely level and even surface.
Place the pump and base plate assembly on the foundation, and
fasten it. The base plate must be supported on the whole area.
See fig.
.
WARNING
A damaged pump must not be installed.
Transport and long-term storage conditions
t [°F]
t [°C]
RH [%]
Minimum
-40
-40
10
Maximum
158
70
95
The pump must be placed as close to the liquid
source as possible. Adequate space for operation
and maintenance must be taken into consideration.
Summary of Contents for CRN-H MAGdrive
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