GRUNDFOS DATA SHEET
CM Booster PS - without tank
Applications
The Grundfos CM Booster PS is mainly used for
agricultural and light commercial water supply and
similar water installations where minor leakages can
be expected.
TM05 5049 3212
Application
General description
The Grundfos CM Booster PS is an automatic booster
system for water supply in domestic and agricultural
applications as well as other installations where small
leakages are expected to occur.
The booster system consists of a Grundfos CM pump,
a 5-way valve and a pressure switch. A pressure tank
must be fitted to complete the booster system.
Use your own pressure tank or order one of the
Grundfos GT-tanks that make a perfect fit for your
booster system.
The pressure band is approximately 1 bar.
When the system has been connected to the pipework,
it is all a matter of inserting the plug into a power
supply socket, and the system is operational.
Features
• CM pump
• pressure tank to minimise the number of pump
starts
• motor protection (single-phase only)
• automatic operation.
CMB 1
CMB 3
CMB 5
Agriculture
●
●
●
Irrigation
●
●
●
Single-family houses
❍
❍
❍
Two-family houses
❍
❍
❍
Cluster homes
❍
❍
❍
Blocks of flats
❍
❍
❍
Schools
❍
❍
❍
Small hotels or guest houses
❍
❍
❍
Small office buildings
❍
❍
❍
● Recommended.
❍ Applicable.
Type key
Example
CMB
3 - 5 -I - C - A - C - P
Type range
CMB: CM Booster with pressure switch
Rated flow rate [m3/h]
Number of impellers
Materials in contact with the pumped liquid
I: Pump
5-way valve
EN 1.4301/AISI 304
EN 1.4301/AISI 304 and EPDM
Supply voltage
C: 1 x 220-240 V, 50 Hz
F: 3 x 230/400 V, 50 Hz
Motor information
A: Standard motor (IP55)
Mains cable and plug
A: 1.5 m cable with AU plug
C: 1.5 m cable with Schuko plug
D: 1.5 m cable without plug
E: Without cable
Controller
P: Pressure switch
Being responsible is our foundation
Thinking ahead makes it possible
Innovation is the essence
Performance range
p
[kPa]
1000
Thermal protection
Single-phase motors
H
[m]
50 Hz
ISO 9906 Annex A
90
800
80
5-10
70
600
Single-phase CM pumps incorporate current- and
temperature-dependent motor protection according to
IEC 60034-11 and require no external motor
protection.
CM Booster PS
100
10-6
60
5-8
Three-phase motors
10-5
Three-phase CM pumps do not incorporate motor
protection and therefore require external motor
protection.
50
10-3
5-5
30
200
10-4
5-6
40
20
1-4
3-4
10
0
0
0
1
0.0
2
3
0.5
4
5
1.0
6
1.5
7
8
2.0
9
10
2.5
11
12
3.0
13
3.5
Q [m³/h]
14
4.0
Q [l/s]
TM05 4765 2612
400
Pressure losses in fittings and hose are not included.
TM05 4246 2112
Dimensional sketches
1 x 220-240 V, 50 Hz
CMB
H
H1
H2
A1
A2
L1
B2
1-4
255
75.0
208
G1
Rp 1
323.0
158.0
3-4
255
75.0
208
G1
Rp 1
323.0
158.0
5-5
255
75.0
208
G1
Rp 1 1/4
381.0
158.0
5-6
270
90.0
223
G1
Rp 1 1/4
466.5
178.0
5-8
270
90.0
223
G1
Rp 1 1/4
502.5
178.0
5-10
270
90.0
223
G1
Rp 1 1/4
538.5
178.0
10-3
323
100.0
261
G 1 1/2
Rp 1 1/2
450.0
199.0
3 x 230/400 V, 50 Hz
CMB
H
H1
H2
A1
A2
L1
B2
5-5
255
75.0
208
G1
Rp 1 1/4
401.0
158.0
5-6
255
75.0
208
G1
Rp 1 1/4
437.0
158.0
5-8
270
90.0
223
G1
Rp 1 1/4
502.5
178.0
5-10
270
90.0
223
G1
Rp 1 1/4
578.5
178.0
10-3
323
100.0
261
G 1 1/2
Rp 1 1/2
490.0
199.0
10-4
323
100.0
261
G 1 1/2
Rp 1 1/2
537.0
199.0
10-5
323
100.0
261
G 1 1/2
Rp 1 1/2
597.0
199.0
10-6
323
100.0
261
G 1 1/2
Rp 1 1/2
597.0
199.0
Technical data
1 x 220-240 V, 50 Hz
CMB
Imax
[A]
P1
[W]
Plug
type
Speed
[rpm]
pstart
[bar]
Product
number
1-4
3.1 - 2.8
436
AU
2.730
2.0
98244555
3-4
3.1 - 2.8
587
AU
2.730
2.5
98244556
5-5
5.4 - 5.0
1410
AU
2.750
3.0
98117630
5-6
8.4 - 8.0
1410
AU
2.710
4.0
98117632
5-8
8.4 - 8.0
1790
AU
2.710
4.5
98117633
5-10
11.0 - 10.0
2130
AU
2.755
6.5
98117634
10-3
11.0 - 10.0
2070
AU
2.755
3.0
98117635
All pumps are fitted a with 1.5 m cable.
3 x 230/400 V, 50 Hz
CMB
Imax
[A]
P1
[W]
Plug
type
Speed
[rpm]
pstart
[bar]
Product
number
5-5
4.8 - 5.2/
2.8 - 3
1170
AU
2.820
3.3
98117636
5-6
4.8 - 5.2/
2.8 - 3
1360
AU
2.820
3.8
98117637
5-8
5.55 - 5.38/
3.25 - 3
1840
AU
2.880
5.5
98117638
5-10
8.05 - 7.5/
4.7 - 4.35
2320
AU
2.890
7.5
98117639
10-3
8.05 - 7.5/
4.7 - 4.35
2250
AU
2.890
3.0
98117640
10-4
11.8 - 11.0/
3000
6.75 - 6.40
AU
2.900
4.5
98117641
10-5
11.8 - 11.0/
6.75 - 6.40
3710
AU
2.900
5.5
98117642
10-6
14.0 - 13.2/
8.20 - 7.80
4600
AU
2.900
6.7
98117643
All pumps come without cable.
98257862 0812
ECM: 1096025
GRUNDFOS A/S . DK-8850 Bjerringbro . Denmark
Telephone: +45 87 50 14 00
www.grundfos.com
Subject to alterations.