18304 1 Grundfos 96634763 Brochure User Manual

User Manual: Pump 18304 1 Grundfos 96634763 Brochure

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GRUNDFOS MQ PUMPS
ALL-IN-ONE HOME WATER SUPPLY SYSTEM

GRUNDFOS MQ PUMP

Compact, all-in-one unit, designed for home water supply systems
The Grundfos MQ is a compact all-in-one pressure boosting unit,
designed for domestic water supply and other boosting or lift
applications. The MQ is a compact and reliable, easy-to-install
pump, with many standard features.
The MQ is a self-priming multistage centrifugal pump. It self-primes
from a well depth of down to 25 feet within a maximum time of 5
minutes. The MQ pump is also ideal for pressure boosting from
water storage tanks or from city water supply (maximum 45 psi
inlet pressure).
The MQ pump is built for long life, trouble-free operation. It is made
from weatherproof, corrosion-resistant materials and can be placed
outdoors.
The Grundfos MQ features an easy-to-use control
panel with indicator lights for indication of:

EASY TO SELECT
The Grundfos MQ makes it easy to select the right pump. The MQ is
an all-in-one unit with two models to choose from. There is no need
to worry about a separate pressure tank, pressure switch, electrical
connections, fittings, or any other separate items. With MQ it is
literally a matter of connect the power and turn on the pump.
Installation of an MQ pump is simple and can be done in a matter
of minutes, which gives you more time to relax.

• pump on
• auto reset
• alarm (dry-running or overheating).
In the event of dry-run, the pump will stop and
afterwards attempt to restart automatically.
Restarting can also be done manually. If required,
the auto reset function can be disabled as well.

EASY TO I NSTALL
The MQ pump is easy to install. The discharge connection can move up to 5° to fit existing pipework, and the compact
design makes the pump easy to place even where space is limited.

Easy to select

Easy to install

Easy to operate

GRUNDFOS MQ PUMPS
ALL-IN-ONE HOME WATER SUPPLY
EASY TO OPER ATE
Operating the MQ pump is simple and easy. The actual settings are
clearly indicated by light-diodes on the user-friendly control panel.
The MQ pump has a small built-in pressure tank to ensure
that water is readily available from the tap. When water
is required, the pump automatically starts and no
loss of pressure will be felt. It also features a
built-in check valve.

UN I Q U E USER BEN EFITS
“Whisper quiet operation,” the MQ is
specially designed for use in domestic
applications where low noise is a major
consideration. The pump is cooled by the
pumped water which eliminated the need for a
noisy cooling fan. Because the pump is selfcooling, you don’t need to have free space around
the pump for cooling purposes.
The MQ “anti-cycling” feature prevents the pump from continuously
starting and stopping when you have a dripping tap or minor leak in the system.

PROTECTIVE FEATURES
The MQ pump has built-in dry-run protection. If the pump runs dry, the pump automatically stops. It will then attempt
to restart every half hour for a maximum of 24 hours until water is available from the source.
If more than 24 hours pass without water, the pump must be restarted manually. The auto reset function can also be
disabled.
The MQ pump also has built-in thermal protection. If the pump overheats it immediately stops. After a 30-minute
cooling-down period, the pump will automatically restart.
The MQ has an easy accessible priming plug for filling the pump with water before start. It also has a drain plug to
prevent the pump from freezing.

FEATURES/BEN EFITS
• Easy to select
• Easy to install
• Easy to operate
• Self-priming down to a depth of 25 ft (8 m)
• Low noise
• Anti-cycling feature
• Dry-run protection

• Corrosion-free – suitable for potable water
• User-friendly control panel
• Tough and reliable
• Space-saving – no tank required
• Use anywhere: homes, cottages, farms, greenhouses
and more

BEING RESPONSIBLE IS OUR FOUNDATION
THINKING AHEAD MAKES IT POSSIBLE
INNOVATION IS THE ESSENCE

DIMENSIONS AN D WEIGHTS

9.44"

VOLTAGE

In
[A]

Istart
[A]

NET
WEIGHT
[lbs.]

MQ 3-35

3/4

1 x 110-120 V

7.2

12.5

29

MQ 3-45

1

1 x 110-120 V

9.2

12.5

29

MQ 3-35

3/4

1 x 220-240 V

3.7

8.6

29

MQ 3-45

1

1 x 220-240 V

4.5

8.6

29

1" NPT
12.59"

HP

7.55"

PUMP TYPE

1" NPT

7.5"
22.44"

180

PERFORMANCE

160

140

HEAD (FEET)

120
MQ 3-45

100

80

60
MQ 3-35

40

20

0
0

5

10

15

20

U.S. GALLONS PER MINUTE

Contact:

L-MQ-SL-001 Rev. 07/01
PRINTED IN USA

Grundfos Pumps Corporation
17100 W. 118th Terrace
Olathe, Kansas 66061
Telephone: (913) 227-3400
Fax: (913) 227-3500
www.grundfos.com

Grundfos Canada, Inc.
2941 Brighton Rd.
Oakville, Ontario L6H 6C9
Telephone: (905) 829-9533
Fax: (905) 829-9512

Bombas Grundfos de Mexico, S.A. de C.V.
Boulevard TLC #15, Parque Industrial Stiva Aeropuerto
C.P. 66600 Apodaca, N.L. Mexico
Telephone: 52-8-144-4000
Fax: 52-8-144-4010

25

4x3/8"Dia.

4.5"
8.56"
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