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General Description; Applications; Type Key - Grundfos MQ series Montage- Und Betriebsanleitung

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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.

1. General description

Page
The MQ is a compact water supply system consisting
of a pump, motor, pressure tank and controller com-
103
bined in an integral unit.
103
103
The pump starts automatically when water is con-
104
sumed in the installation and stops when the con-
sumption ceases. The MQ is a low-noise pump which
104
can be installed both indoors and outdoors.
104
The pump is self-priming and has a non-return valve
104
incorporated in the suction port, see fig. 1. The pump
105
features a user-friendly control panel.
105
105
The pressure tank incorporated in the pump reduces
the number of starts and stops in case of leakage in
105
the installation.
105
107
The MQ pump has built-in overtemperature and dry-
running protection.
107
107

1.1 Applications

107
108
Typical applications:
108
• Water pressure boosting in storage tanks
108
(maximum inlet pressure 3 bar) and
108
• water supply from wells (maximum suction lift
109
8 metres), e.g.
109
- in private homes,
109
- in summer houses and weekend cottages,
110
- 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 120.
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
103

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Diese Anleitung auch für:

Mq 3-45

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