Grundfos CR-H, Инструкция по установке и эксплуатации

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5
CONTENTS
Page
1. Symbols used in this document 5
2. Delivery 5
2.1 Check that you have the right pump 5
2.2 Check the condition of the pump 5
3. Identification 6
3.1 Type key for CR, CRN 1s, 1, 3, 5, 10, 15 and 20 H 6
3.2 Type key for CR, CRN 32, 45, 64 and 90 H 6
4. Codes 6
5. Applications 7
5.1 Pumped liquids 7
6. Operating conditions 7
6.1 Ambient temperature and altitude 7
6.2 Liquid temperature 7
6.3 Maximum permissible operating pressure and liquid
temperature for the shaft seal
7
6.4 Minimum inlet pressure – NPSHR 8
6.5 Maximum inlet pressure 8
6.6 Minimum flow rate 9
7. Technical data 9
7.1 Electrical data 9
7.2 Frequency of starts and stops 9
7.3 Dimensions and weights 9
7.4 Sound pressure level 9
8. Installation 9
8.1 Base plate 9
8.2 Foundation 9
8.3 Vibration dampening 10
8.4 Mounting on a Grundfos base plate 11
8.4.1 Bolt torques 11
8.5 Outdoor installation 11
8.6 Hot surfaces 11
8.7 Tightening torques 11
8.8 Piping 12
8.9 Recommended piping practices 12
8.10 Check valves 12
8.11 Bypass 12
8.12 Assembly of motor and pump end 12
9. Electrical connection 13
9.1 Single-phase motors 13
9.2 Three-phase motors 13
9.3 Frequency converter operation 13
10. Start-up 14
10.1 Start-up procedure 14
11. Maintenance 14
11.1 Motor inspection 14
11.2 Motor lubrication 15
11.3 Motor lubrication schedule
(for motors with grease fittings)
15
11.4 Preventative maintenance 16
12. Frost protection 16
13. Service 16
13.1 Service kits and service documentation 16
14. Start-up (air-cooled top) 17
15. Troubleshooting 18
16. Disposal 18
1. Symbols used in this document
2. Delivery
2.1 Check that you have the right pump
Read the pump nameplate to make sure you have received the
pump you ordered.
2.2 Check the condition of the pump
The shipping carton your pump came in is specially designed
around your pump during production to prevent damage. As a
precaution, the pump should remain in the carton until you are
ready to install it. Examine the pump for any damage that may
have occurred during shipping. Examine any other parts of the
shipment as well for any visible damage.
If the pump is supplied as a complete unit (motor attached to
pump end), the position of the coupling (that connects the pump
shaft to the motor shaft) is set at factory specifications. No
adjustment is required.
If the unit is supplied as a pump end only, follow the adjustment
procedures in section
8.12 Assembly of motor and pump end .
Pump without motor (CR, CRN 1s, 1, 3, 5, 10, 15 and 20 H
only)
If you purchased a pump without a motor, the shaft seal has been
set by the factory. Do not loosen the three set screws on the shaft
seal when attaching the motor.
Pump without motor (CR, CRN 32, 45, 64 and 90 H only)
If you purchased a pump without a motor, you must install the
shaft seal. The shaft seal is protected in its own sub boxing within
the pump packaging crate. Read the seal installation instructions
which are included in the pump package.
Pump without motor (all)
To protect the shaft and bearings during shipment, a shaft holder
protective device is used. This device must be removed prior to
installation of the shaft seal or motor.
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.
Warning
When the shipment is received, extreme care
should be exercised during unloading. Heavy
parts should be skidded to the ground if lifting
equipment is not available. It is recommended a
forklift or crane be used to unload the equipment.
Do not drop the unit, or any parts, as damage may
cause trouble in assembly and operation of the
units.
CR-H
Centrifugal pump with standard cast-iron and
304 stainless-steel construction
CRN-H
Centrifugal pump; all parts in contact with water are
316 stainless-steel construction
CRE-H
Centrifugal pump with a Grundfos MLE VFD motor
attached