Identification; Installing The Product; Mechanical Installation; Outdoor Installation - Grundfos CRE Instructions Manual

3.4 Identification

3.4.1 Nameplate
The information on the pump nameplate is described below.
DK-8850 Bjerringbro, Denmark
Ver-PN-SN
1 2 3
Model
4 5
RPM
Hz
6
hp [P2]
GPM
9 10
H /Hmax
ft.
12
pmax / tma x
PEI
PEI
15 16
CL
VL
18
21
Example of a nameplate
Pos. Description
1 Version
2 Product number
3 Serial number
4 Model
5 Type designation
6 Frequency
7 Rated speed
8 Weight excluding motor
9 Motor-rated power output
10 Rated flow rate
11 Direction of rotation
CCW: Counterclockwise
CW: Clockwise
12 Head at rated flow rate / Maximum head
13 Hydraulic efficiency at rated flow rate
14 Maximum system pressure / Maximum liquid temperature.
Note that this field may have two sets of data.
15 Pump Energy Index, constant load
16 Pump Energy Index, variable load
17 Impeller diameter
18 External reference
(Other Equipment Manufacturer number)
19 Production code
20 Country of origin
21 Approval marks
6
excl.motor lb
7 8
11
η =
p %
13
PSI / ˚F
14
(in)
Imp.Dia.
17
P code:
19
20

4. Installing the product

4.1 Mechanical installation

The pump must be secured to a solid foundation by means of bolts
through the holes in the flange or baseplate.
In order to retain the UL/cUL approval, follow the
additional installation procedures found in the Appendix.
4.1.1 Motor cooling
To ensure sufficient cooling of motor and electronics, observe the
following requirements:
• Make sure that sufficient cooling air is available.
• Keep the temperature of the cooling air below 104 °F (40 °C).
• Keep cooling fins and fan blades clean.

4.2 Outdoor installation

When installed outdoors, the pump must be provided with a suitable
cover to avoid condensation on the electronic components. See the
figures below.
Examples of covers
Remove the drain plug pointing downwards in order to avoid
moisture and water build-up inside the motor.
Vertically mounted pumps are IP55 after removal of the drain plug.
Horizontally mounted pumps change enclosure class to IP54.
In order to retain the UL mark, additional requirements
apply to the equipment. See the Appendix.

4.3 Electrical connection

For description of how to connect E-pumps electrically, see the
section on three-phase pumps, 20-30 hp.
Related information
4.4 Three-phase pumps, 20-30 hp