Tabla De Contenido; General Description; Applications; Type Key - Grundfos MQ Serie Instrucciones De Instalación Y Funcionamiento

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CONTENTS
1.
1.1
1.2
1.3
2.
3.
3.1
3.2
3.3
3.4
4.
4.1
4.2
5.
5.1
5.2
5.3
5.4
6.
6.1
6.2
7.
8.
9.
Before beginning installation procedures,
these installation and operating instruc-
tions should be studied carefully. The in-
stallation and operation should also be in
accordance with local regulations and ac-
cepted codes of good practice.
4

1. General description

Page
The MQ is a compact water supply system consisting
of a pump, motor, pressure tank and controller com-
4
bined in an integral unit.
4
4
The pump starts automatically when water is con-
5
sumed in the installation and it stops when the con-
sumption ceases. The MQ is a low-noise pump which
5
can be installed both indoors and outdoors.
5
The pump is self-priming and has a non-return valve
5
incorporated in the suction port, see fig. 1. The pump
6
features a user-friendly control panel.
6
6
The pressure tank incorporated in the pump reduces
the number of starts and stops in case of leakages in
6
the installation.
6
8
The MQ pump has built-in overtemperature and dry-
running protection.
8
8

1.1 Applications

8
9
Typical applications:
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• Water pressure boosting in storage tanks
9
(maximum inlet pressure 3 bar) and
9
• water supply from wells (maximum suction lift
10
8 metres), e.g.
10
- in private homes,
10
- in summer houses and weekend cottages,
11
- on farms,
- in market gardens and other large gardens.
The pump can be used for rain water and has been
approved for drinking water.
The maximum suction lift of the pump can be deter-
mined from the diagram on page 93.
Example:
If the suction lift is 2.5 metres, the length of the suc-
tion pipe must not exceed 24 metres.

1.2 Type key

Example
Pump type
Nominal flow rate [m³/h]
Head [m]
Code for pump version
A: Standard
Code for pipework connection
Code for materials
A: Standard
Code for shaft seal
MQ
3
-35 A -O -A BVBP
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Este manual también es adecuado para:

Mq 3-25Mq 3-35Mq 3-45

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