Grundfos SP-G, Инструкция по установке и эксплуатации

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4
Original installation and operating instructions.
CONTENTS
Page
1. Delivery and storage 4
1.1 Delivery 4
1.2 Storage and handling 4
2. General data 4
2.1 Applications 4
2.2 Pumped liquids 4
2.3 Sound pressure level 5
3. Preparation 5
3.1 Checking of liquid in motor 5
3.2 Positional requirements 5
3.3 Diameter of pump/motor 6
3.4 Liquid temperatures/cooling 6
4. Electrical connection 6
4.1 General 6
4.2 Motor protection 7
4.3 Lightning protection 7
4.4 Cable sizing 7
4.5 Connection of motor 8
5. Pump installation 9
5.1 Assembly of motor and pump 9
5.2 Fitting of submersible drop cable 9
5.3 Riser pipe 9
5.4 Maximum installation depth below water level 9
5.5 Cable fitting 10
5.6 Lowering the pump 10
5.7 Installation depth 10
6. Start-up and operation 10
6.1 Start-up 10
6.2 Operation 10
7. Maintenance and service 11
8. Fault finding chart 12
9. Checking of motor and cable 13
10. Disposal 13
These instructions apply to GRUNDFOS submersible motors,
types MS and MMS, and GRUNDFOS submersible pumps, types
SP 55, SP 90, SP 270, SP 300 and SP 360, fitted with submersi-
ble motors, types MS or MMS.
If the pump is fitted with a motor of another motor make than
GRUNDFOS MS or MMS, please note that the motor data may
differ from the data stated in these instructions.
1. Delivery and storage
1.1 Delivery
GRUNDFOS submersible pumps are supplied from the factory in
proper packing in which they should remain until they are to be
installed.
During unpacking and prior to installation, care must be taken
when handling the pump to ensure that misalignment does not
occur due to bending.
The loose data plate supplied with the pump should be fixed
close to the installation site.
The pump should not be exposed to unnecessary impact and
shocks.
1.2 Storage and handling
Storage temperature: Pump: –20°C to +60°C.
Motor: –20°C to +70°C.
The motors must be stored in a closed, dry and well ventilated
room.
Note: If MMS motors are stored for more than one year, the shaft
must be turned by hand at least once a month.
If a motor has been stored for more than one year before installa-
tion, the rotating parts of the motor must be dismantled and
checked before use.
The pump should not be exposed to direct sunlight.
If the pump has been unpacked, it should be stored horizontally,
adequately supported, or vertically to prevent misalignment of the
pump. Make sure that the pump cannot roll or fall over. During
storage, the pump can be supported as shown in fig. 1.
Fig. 1
If the pump is not handled in vertical position, it must be lifted in
the motor part and the pump part at the same time, see fig. 2.
Note that the centre of gravity will vary, depending on pump type.
Fig. 2
1.2.1 Frost protection
If the pump has to be stored after use, it must be stored on a
frost-free location, or it must be ensured that the motor liquid is
frost-proof.
2. General data
2.1 Applications
GRUNDFOS submersible pumps, type SP, are designed for a
wide range of water supply and liquid transfer applications, such
as the supply of fresh water to private homes or waterworks,
water supply to nursery gardens or farms, drawdown of ground-
water and pressure boosting, and various industrial jobs.
The pump must be installed so that the suction interconnector is
completely submerged in the liquid. The pump can be installed
either horizontally or vertically, see also section 3.2 Positional
requirements.
2.2 Pumped liquids
Clean, thin, non-explosive liquids without solid particles or
fibres.
The maximum sand content of the water must not exceed
50 g/m³. A larger sand content will reduce the life of the pump and
increase the risk of blocking.
When pumping liquids with a density higher than that of water,
motors with correspondingly higher outputs must be used.
Note: When pumping liquids with a viscosity and aggressiveness
higher than that of drinking water, please contact GRUNDFOS.
The maximum liquid temperature appears from section 3.4 Liquid
temperatures/cooling.
Before beginning installation procedures, these
installation and operating instructions should be
studied carefully. The installation and operation
should also be in accordance with local regulations
and accepted codes of good practice.
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