AXEON Grundfos MQ-Series - Manual (Page 4)

4
English (US)
English (US) Installation and operating instructions
CONTENTS
Page
1. Introduction
The MQ is a low-noise water supply system
consisting of pump, motor, pressure tank and
controller combined into one compact unit.
The system is suitable for both indoor and out-
door use.
The self-priming pump starts automatically
when water is consumed in the installation and
stops when consumption ceases. The internal,
built-in non-return valve prevents backflow
during priming and operation.
The MQ pump incorporates overtemperature
and dry-running protection as well as a user-
friendly control panel.
The built-in pressure tank reduces the number
of starts and stops in case of leakage in the
installation.
2. Items supplied
The MQ packaging contains these items:
• MQ water supply system with built-in non-
return valve
• non-return inlet valve in plastic bag
• installation and operating instructions.
1. Introduction 4
2. Items supplied 4
3. Symbols used in this document 5
4. Applications 5
4.1 Pumped liquids 5
5. Identification 6
5.1 Type key 6
6. Operating conditions 7
6.1 Suction lift 7
7. Mechanical installation 8
7.1 Location 8
7.2 Foundation 8
7.3 Space requirement 8
7.4 Pipework 8
7.5 Protective cover 10
8. Electrical connection 11
8.1 Generator or inverter 11
8.2 Wiring diagram 12
8.3 Winding resistance measurement 12
8.4 Winding resistance measurement 13
8.5 Start-up 14
9. Functions 15
9.1 Control panel 15
9.2 Pump stop 16
10. Maintenance 17
10.1 Service kits 17
10.2 Start-up after a long period of inactivity 17
11. Service 17
12. Technical data 18
12.1 Dimensions 18
12.2 Electrical data 18
12.3 Approvals 18
13. Accessories 18
14. Fault finding chart 19
15. MQ frequently asked questions 21
16. Disposal 22
WARNING
Prior to installation, read these
installation and operating instruc-
tions. Installation and operation
must comply with local regula-
tions and accepted codes of good
practice.
Grundfos.book Page 4 Monday, May 23, 2011 10:17 AM