Grundfos CR User Manual

3
English (US)
English (US) Installation and operating instructions
Original installation and operating instructions
CONTENTS
Page
1. Limited warranty
Products manufactured by Grundfos Pumps Corporation
(Grundfos) are warranted to the original user only to be free of
defects in material and workmanship for a period of 24 months
from date of installation, but not more than 30 months from date
of manufacture. Grundfos' liability under this warranty shall be
limited to repairing or replacing at Grundfos' option, without
charge, F.O.B. Grundfos' factory or authorized service station,
any product of Grundfos manufacture. Grundfos will not be liable
for any costs of removal, installation, transportation, or any other
charges that may arise in connection with a warranty claim.
Products which are sold, but not manufactured by Grundfos, are
subject to the warranty provided by the manufacturer of said
products and not by Grundfos' warranty.
Grundfos will not be liable for damage or wear to products caused
by abnormal operating conditions, accident, abuse, misuse,
unauthorized alteration or repair, or if the product was not
installed in accordance with Grundfos' printed installation and
operating instructions and accepted codes of good practice. The
warranty does not cover normal wear and tear.
To obtain service under this warranty, the defective product must
be returned to the distributor or dealer of Grundfos' products from
which it was purchased together with proof of purchase and
installation date, failure date and supporting installation data.
Unless otherwise provided, the distributor or dealer will contact
Grundfos or an authorized service station for instructions. Any
defective product to be returned to Grundfos or a service station
must be sent freight prepaid; documentation supporting the
warranty claim and/or a Return Material Authorization must be
included if so instructed.
Grundfos will not be liable for any incidental or consequential
damages, losses, or expenses arising from installation, use, or
any other causes. There are no express or implied warranties,
including merchantability or fitness for a particular purpose, which
extend beyond those warranties described or referred to above.
Some jurisdictions do not allow the exclusion or limitation of
incidental or consequential damages and some jurisdictions do
not allow limitations on how long implied warranties may last.
Therefore the above limitations or exclusions may not apply to
you. This warranty gives you specific legal rights and you may
also have other rights which vary from jurisdiction to jurisdiction.
Products which are repaired or replaced by Grundfos or
authorized service center under the provisions of these limited
warranty terms will continue to be covered by Grundfos warranty
only through the remainder of the original warranty period set
forth by the original purchase date.
1. Limited warranty
3
2. General information
4
2.1 Hazard statements
4
2.2 Notes
4
3. Introduction
4
4. Receiving the product
5
4.1 Transporting the product
5
4.2 Receiving the product
5
4.3 Lifting instructions
5
4.4 Inspecting the product
5
4.5 Ensure you have the right pump
5
4.6 Pump end without motor
6
4.7 Drive-end motor bearing
6
5. Identification
6
5.1 Nameplate data
6
5.2 Type keys
7
6. Applications
10
7. Operating conditions
10
7.1 Ambient temperature and altitude
10
7.2 Liquid temperatures
10
7.3 Minimum inlet pressures
10
7.4 Maximum inlet pressures
11
7.5 Maximum operating pressures
11
8. Mechanical installation
12
8.1 Lifting the product
12
8.2 Pump location
12
8.3 Outside installation
12
8.4 Foundation
12
8.5 Pump mounting
14
8.6 Inlet pipe
14
8.7 Outlet pipe
14
8.8 Bypass
15
8.9 Flange forces and torques
16
8.10 Minimum continuous duty flow rates [gpm]
17
8.11 Check valves
17
8.12 Temperature rise
18
9. Electrical connection
18
9.1 Motors
19
9.2 Position of terminal box
19
9.3 Field wiring
19
9.4 Motor protection
19
10. Starting up the product
20
10.1 Priming
20
10.2 Startup instructions
21
11. Operating the product
21
11.1 Operating parameters
21
11.2 Pump cycling
22
11.3 Boiler feed installations
22
11.4 Frost protection
22
12. Servicing the product
22
12.1 Contaminated products
22
13. Maintaining the pump
23
14. Maintaining the motor
23
14.1 Motor inspection
23
14.2 Motor lubrication
24
15. Replacing the motor
25
15.1 Disassembly
25
15.2 Assembly
25
16. Parts list
27
16.1 Spare parts
27
17. Preliminary electrical tests
28
17.1 Supply voltage
28
17.2 Current
28
17.3 Insulation resistance
28
18. Startup of pump with air-cooled top (Cool-Top
®
)
29
19. Diagnosing specific problems
30
20. Worksheet for three-phase motors
33
21. Disposal
34
Read this document before installing the product.
Installation and operation must comply with local
regulations and accepted codes of good practice.

Grundfos CR Specifications

General

Brand	Grundfos
Model	CR
Category	Water Pump
Language	English