Tabla De Contenido; General Information; Related Installation And Operating Instructions; Scope Of Atex Categories For Mtr Pumps - Grundfos MTR Serie Instrucciones De Operación

Original installation and operating instructions.
CONTENTS
1. General information
2. Related installation and operating instructions
3. Scope of ATEX categories for MTR pumps
4. Identification
4.1 MTR 1s, 1, 3, 5, 10, 15 and 20
4.2 MTR 32, 45 and 64
5. Before starting an ATEX-approved pump
Prior to installation, read these installation and oper-
ating instructions. Installation and operation must
comply with local regulations and accepted codes of
good practice.

1. General information

For ATEX-approved Grundfos MTR pumps, these supplementary
installation and operating instructions must be observed.
The MTR pumps have been approved according to the EC direc-
tive 94/9/EC, the so-called ATEX directive.
The pumps can be used in areas (zones) classified according to
the directive 1999/92/EC. In case of doubt, please consult the
above-mentioned directives or contact Grundfos.

2. Related installation and operating instructions

In addition to these instructions, the installation and operating
instructions of MTR standard pumps must be observed.

3. Scope of ATEX categories for MTR pumps

Directive
Group I
94/9/EC Category M
1 2
1)
1999/92/EC
MTR pumps None None
Motors None None
1. Important: The link between groups, categories and zones is
explained in 1999/92/EC. Please note that this is a minimum
directive. Some EU countries might therefore have stricter
local rules. The user or installer is always responsible for
checking that the group and category of the pump correspond
to the zone classification of the installation site.
2. Note: The risk assessment done by Grundfos on the MTR
pump for category 3 G shows that the pump can be upgraded
to category 2 G by installing an ATEX-approved dry-running
protection.
The dry-running protection must stop the pump if the liquid
supply ceases.
Always check that the motor is marked for category 2 G.
Make sure that the combination of "MTR pump" and "dry-run-
ning protection" is described in the Explosion Protection Docu-
ment according to the directive 1999/92/EC. The responsibility
rests with the installer/owner.
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ATEX-approved MTR pumps
Category 1
G D G
Zone 0 Zone 20 Zone 1
None None None
None None None
Group II
Category 2
D
Zone 21
MTR
VEM 2G EEx e T3
VEM 2D 125°C
ATB 2G EEx d T4
Category 3
2)
G D
Zone 2 Zone 22
MTR MTR
VEM 3D 125°C