4
CONTENTS
Page
1.
Type designation
4
2.
Applications 4
3.
Technical data
4
3.1
Ambient temperature
4
3.2
Liquid temperature
4
3.3
Maximum permissible operating pressure
4
3.4
Maximum inlet pressure
4
3.5
Minimum inlet pressure
4
3.6
Electrical data
4
3.7
Dimensions 4
3.8
Sound pressure level
4
3.9
Weights 4
4.
Installation 4
5.
Electrical connection
5
5.1
Motor protection
5
6.
Start-up 5
7.
Cleaning the filter basket
6
8.
Frost protection
6
9.
Maintenance and service
6
10.
Fault finding chart
6
11.
Disposal
6
Before beginning installation procedures,
these installation and operating instruc-
tions should be studied carefully. The in-
stallation and operation should also be in
accordance with local regulations and ac-
cepted codes of good practice.
1. Type designation
See pump nameplate.
The key below indicates the meaning of the letters
and figures of the type designation, e.g. GP 14-75-3.
2. Applications
The GRUNDFOS pool pump, type GP, is a horizontal
close-coupled centrifugal pump with self-priming
properties.
The main application of the GP pump is to circulate
water in swimming pools and it is usually installed
before the pool filter. The pump is designed for
pumping pool water being disinfected by chlorine.
The GP pump incorporates a removable filter basket
to filter out leaves and other solids.
3. Technical data
3.1 Ambient temperature
M55°C.
3.2 Liquid temperature
0°C to +50°C.
3.3 Maximum permissible operating
pressure
3 bar.
3.4 Maximum inlet pressure
The actual inlet pr pressure when the pump
is running against a closed valve must always be
lower than the maximum permissible operating pres-
sure.
3.5 Minimum inlet pressure
Suction lift: Maximum 3 metres.
Self-priming: Maximum 2 metres.
3.6 Electrical data
Supply voltage:
1 x 220-240 V, 50 Hz.
3 x 380-415 V, 50 Hz.
See also pump nameplate.
Enclosure class: IP 44.
Insulation class: Class F.
3.7 Dimensions
See the figure at the end of these instructions.
3.8 Sound pressure level
The sound pressure level of the pump is lower than
70 dB(A).
3.9 Weights
GP 7-44:
11.7 kg.
GP 7-44-3:
10.2 kg.
GP 10-60:
12.2 kg.
GP 10-60-3:
11.4 kg.
GP 14-75:
13.8 kg.
GP 14-75-3:
12.2 kg.
GP 20-100:
15.2 kg.
GP 20-100-3:
13.5 kg.
GP 23-150:
22.6 kg.
GP 23-150-3:
16.7 kg.
GP 23-150:
22.6 kg.
GP 23-150-3:
16.7 kg.
4. Installation
The GP pool pump is usually installed between the
skimmer and the pool filter.
The pump is to be mounted on a solid foundation.
The pump must be installed with the shaft horizontal
and with the transparent cover uppermost. It must be
possible to remove the transparent cover so that the
filter basket can be removed for cleaning.
GP
14 - 75 - 3
GRUNDFOS pool pump
Flow rate in m³/h at 10 metres head
Motor output (P
2
)
in watts divided by 10
Three-phase version
