4
CONTENTS
Page
1. General description 4
1.1 Applications 4
1.2 Type key 4
1.3 MQ pump 5
2. Pumped liquids 5
3. Technical data 5
3.1 Operating conditions 5
3.2 Electrical data 6
3.3 Dimensions 6
3.4 Approvals 6
4. Functions 6
4.1 Control panel 6
4.2 Pump stop 8
5. Mounting and connection 8
5.1 Mounting the pump 8
6. Electrical connection 9
6.1 Generator or inverter 9
6.2 Wiring diagram 10
6.3 Winding resistance measurement 10
6.4 Start-up 11
7. Main
tenance 1
1
7.1 Service kits 11
7.2 Start-up after a long time of inactivity 11
8. Service 11
9. Disposal 11
10. Fault finding chart 12
Dimensions 35
Before beginning installation procedures,
these installation and operating instruc-
tions should be studied carefully. The instal-
lation and operation should also be in
accordance with local regulations and ac-
cepted codes of good practice.
1. General description
The MQ is a compact water supply system consisting
of a pump, motor, pressure tank and controller com-
bined in an integral unit.
The pump starts automatically when water is con-
sumed in the installation and stops when the con-
sumption ceases. The MQ is a low-noise pump which
can be installed both indoors and outdoors.
Note: When installed outdoors the MQ should not be
exposed to direct sunlight or rain.
The pump is self-priming and has a check valve incor-
porated in the discharge port, see fig. 1. The pump
features a user-friendly control panel.
The pressure tank incorporated in the pump reduces
the number of starts and stops in case of leakage in
the installation.
The MQ pump has built-in overtemperature and dry-
running protection.
1.1 Applications
Typical applications:
• Water pressure boosting
(maximum inlet pressure: 45 psi) and
• water supply from wells (maximum suction lift:
25 ft), e.g.
- in private homes,
- in summer houses and weekend cottages,
- on farms,
- in market gardens and other large gardens.
The pump can be used for rain water and has been ap-
proved for drinking water.
The maximum suction lift of the pump can be deter-
mined from the diagram on page 35.
Example:
If the suction lift is 10 ft, the length of the suction
pipe must not exceed 72 ft.
1.2 Type key
Example MQ 3 -35 A -O -A BVBP
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
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