Table Of Contents; Limited Warranty - Grundfos CRE Instructions Manual

English (US) Installation and operating instructions
Original installation and operating instructions

Table of contents

1. Limited warranty . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2. General information . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Hazard statements . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3. Product introduction. . . . . . . . . . . . . . . . . . . . . . . . 5
3.1 Pumps without factory-fitted sensor . . . . . . . . . . . . . . . 5
3.2 Pumps with pressure sensor . . . . . . . . . . . . . . . . . . . . 5
3.3 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.4 Identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4. Installing the product . . . . . . . . . . . . . . . . . . . . . . . 6
4.1 Mechanical installation . . . . . . . . . . . . . . . . . . . . . . . 6
4.2 Outdoor installation . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.3 Electrical connection. . . . . . . . . . . . . . . . . . . . . . . . . 6
4.4 Three-phase pumps, 20-30 hp. . . . . . . . . . . . . . . . . . . 7
4.5 E-pump electrical connections . . . . . . . . . . . . . . . . . . . 9
4.6 Bus connection cable . . . . . . . . . . . . . . . . . . . . . . . 11
4.7 Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5. Control functions . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.1 Displays in general. . . . . . . . . . . . . . . . . . . . . . . . . 12
5.2 Menu OPERATION . . . . . . . . . . . . . . . . . . . . . . . . 12
5.3 Menu STATUS . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.4 Menu INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . 15
5.5 Typical display settings for constant-pressure E-pumps . . 22
5.6 Typical display settings for analog-input E-pumps . . . . . . 23
5.7 Digital input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.8 External setpoint signal . . . . . . . . . . . . . . . . . . . . . . 24
5.9 Bus signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.10 Other bus standards . . . . . . . . . . . . . . . . . . . . . . . . 25
5.11 Indicator lights and signal relay . . . . . . . . . . . . . . . . . 26
6. Setting the product. . . . . . . . . . . . . . . . . . . . . . . . 28
6.1 Factory settings. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.2 Setting by means of control panel. . . . . . . . . . . . . . . . 28
6.3 Setting of operating mode . . . . . . . . . . . . . . . . . . . . 28
6.4 Setpoint setting . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.5 Setting by means of R100 . . . . . . . . . . . . . . . . . . . . 29
6.6 Grundfos GO . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.7 Setting by means of PC Tool E-products . . . . . . . . . . . 32
6.8 Priority of settings . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.9 External forced-control signals. . . . . . . . . . . . . . . . . . 32
7. Taking the product out of operation . . . . . . . . . . . . . 33
7.1 Emergency operation (only 20-30 hp) . . . . . . . . . . . . . 33
7.2 Insulation resistance. . . . . . . . . . . . . . . . . . . . . . . . 34
8. Servicing the product . . . . . . . . . . . . . . . . . . . . . . 34
8.1 Cleaning of the motor . . . . . . . . . . . . . . . . . . . . . . . 34
8.2 Relubrication of motor bearings . . . . . . . . . . . . . . . . . 34
8.3 Replacement of motor bearings . . . . . . . . . . . . . . . . . 34
8.4 Replacement of varistor (only 20-30 hp) . . . . . . . . . . . . 34
8.5 Service parts and service kits . . . . . . . . . . . . . . . . . . 34
9. Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
9.1 Three-phase pumps, 20-30 hp. . . . . . . . . . . . . . . . . . 35
9.2 Other technical data . . . . . . . . . . . . . . . . . . . . . . . . 36
10. Disposing of the product . . . . . . . . . . . . . . . . . . . . 36
11. Document quality feedback . . . . . . . . . . . . . . . . . . 36
4

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.