Installation And Operating Instructions; Symbols Used In This Document; General Information; Related Installation And Operating Instructions - Grundfos CR series Montage- Und Betriebsanleitung

English (GB) Installation and operating instructions
Original installation and operating instructions
CONTENTS
1. Symbols used in this document
2. General information
3. Related installation and operating instructions
4. Receiving the product
5. Explosion protection document
6. Identification
7. Scope of ATEX categories for CR pumps
8. Installing the product
8.1 Pump with single seal
8.2 Pump with MAGdrive
8.3 Pump with double seal
9. Operating conditions
9.1 Maximum liquid temperature
9.2 Temperature calculation
10. Before starting up and during operation of an ATEX-
approved pump
10.1 Check list
11. Maintenance and inspection
11.1 Tightening torques of the coupling

1. Symbols used in this document

Warning
If these safety instructions are not observed, it may
result in personal injury.
Warning
These instructions must be observed for explosion-
proof pumps. We recommend that you also follow
these instructions for standard pumps.
If these safety instructions are not observed, it may
Caution
result in malfunction or damage to the equipment.
Notes or instructions that make the job easier and
Note
ensure safe operation.
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2. General information

Warning
Prior to installation, read these installation and
Page
operating instructions. Installation and operation
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must comply with local regulations and accepted
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codes of good practice.
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These supplementary installation and operating instructions apply
to the ATEX-approved Grundfos CR pumps.
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The CR pumps comply with ATEX Directive 94/9/EC.
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The pumps are suitable for use in zones classified according to
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the 1999/92/EC Directive. In case of doubt, consult the above-
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mentioned directives, or contact Grundfos.
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The letters TX on the nameplate refers to the temperature limits,
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which are described in these installation and operating
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instructions. See section
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The pump must not be used for over-synchronous
Note
6 operation.
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3. Related installation and operating instructions

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The X on the nameplate, indicates that the pump is subject to
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special conditions for safe use. The conditions are described in
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the table in section
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In addition to these instructions, observe the following installation
and operating instructions:
• CR, CRI, CRN: for standard pumps.
• CR, CRI, CRN, CRT: removal of transport bracket and fitting of
motor. For pumps without motor.
• MG: for Grundfos standard motors.
For special versions of the CR pumps, observe the relevant

installation and operating instructions:

• CRN MAGdrive
• CR, CRI, CRN: double seal, back-to-back
• MG: Grundfos standard motor
• CR, CRI, CRN: double seal, tandem.

4. Receiving the product

If the pump is delivered without motor, mount the motor and then
adjust the chamber stack and shaft seal according to the
procedure described in the installation and operating instructions,
"Removal of transport bracket and fitting of motor", supplied with
the pump.

5. Explosion protection document

The combination of CR pump and all monitoring equipment must
be described in the explosion protection document according to
the directive 1999/92/EC.
9. Operating conditions.
6. Identification.