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English (GB)
Installation and operating instructions
Original installation and operating instructions.
CONTENTS
Page
1. Symbols used in this document
2. General description
To ensure reliable and optimum operation, Grundfos
drainage pumps, type DPK, are designed with two
types of impeller:
•
0.75 - 15 kW models have semi-open impeller
•
19 and 22 kW models have closed impeller.
DPK pumps are used for removal of surface and
underground water in small and medium systems.
DPK pumps can be controlled via the pump
controllers GU01 and GU02. For further information,
see data sheet for GU01 / GU02 module at
www.grundfos.com.
1.
Symbols used in this document
2
2.
General description
2
3.
Operating conditions
3
4.
Applications
4
5.
Safety
4
6.
Transportation and storage
4
6.1
Transportation
4
6.2
Storage
4
6.2.1
Warehouse storage
4
6.2.2
Storage in the tank
4
7.
Nameplate
5
8.
Approvals
6
9.
Type key
6
10.
Installation
7
10.1
Installation types
7
10.2
Submerged installation on auto coupling
7
10.3
Free-standing submerged installation
8
11.
Electrical connection
9
11.1
Pump controllers
10
11.2
GU01 and GU02
10
11.3
Frequency converter operation
10
11.3.1 Recommendations
10
11.3.2 Possible consequences
10
12.
Startup
11
12.1
Direction of rotation
11
13.
Operation
12
14.
Maintenance, inspection and overhaul 12
14.1
Maintenance
12
14.1.1 Current and voltage
12
14.1.2 Vibration
12
14.1.3 Discharge pressure and flow rate
12
14.1.4 Insulation resistance
12
14.2
Inspection
13
14.2.1 How to remove the pump
13
14.2.2 Inspection of seal sensor
13
14.2.3 Inspection of impeller and wear plate
13
14.3
Overhaul
13
15.
Fault correction
14
16.
Service
15
16.1
Service documentation
15
16.2
Contaminated pumps
15
17.
Disposal
15
Warning
Prior to installation, read these
installation and operating instructions.
Installation and operation must comply
with local regulations and accepted
codes of good practice.
Warning
If these safety instructions are not
observed, it may result in personal
injury.
Caution
If these safety instructions are not
observed, it may result in malfunction
or damage to the equipment.
Note
Notes or instructions that make the job
easier and ensure safe operation.
