Submittal Sheet

Product description
CMBE Booster
1
6
Selection guide
This is a quick and easy tool to show you which
product is ideal for your needs. Just follow the charts
and instructions on this page, and you will be sure to
get a perfect fit.
Example: sizing and selection
Fig. 3 Sizing and selection
Booster sizing and selection
TM064160 0415
A: Required comfort level
• Adjustable constant pressure.
B: Find the right booster
• How many taps? 6.
• How many floors? 3.
Result: CMBE 1-75
Number of taps
1-5 6-10 11-20 21-50
Number of floors
4 CMBE 1-75 CMBE 1-75 CMBE 3-62 CMBE 3-93
3 CMBE 1-44 CMBE 1-75 CMBE 3-62 CMBE 3-62
2 CMBE 1-44 CMBE 1-44 CMBE 3-62 CMBE 3-62
1 CMBE 1-44 CMBE 1-44 CMBE 3-30 CMBE 3-62
Variable speed control
• Adjustable constant
pressure
• Dry-running protection
• Low-noise
Number of taps
1-5 6-10 11-20 21-50
Number of floors
4 CMBE 1-75 CMBE 1-75 CMBE 3-62 CMBE 3-93
3 CMBE 1-44 CMBE 1-75 CMBE 3-62 CMBE 3-62
2 CMBE 1-44 CMBE 1-44 CMBE 3-62 CMBE 3-62
CMBE Booster 1 CMBE 1-44 CMBE 1-44 CMBE 3-30 CMBE 3-62
CMBE 1 x 115 V Input Power
Number of taps
1-5 6-10 11-20 21-50
Number of floors
4 CMBE 1-75 CMBE 1-75 – –
3 CMBE 1-44 CMBE 1-75 CMBE 3-51 –
2 CMBE 1-44 CMBE 1-44 CMBE 3-51 CMBE 3-51
1 CMBE 1-44 CMBE 1-44 CMBE 3-30 CMBE 3-51
CMBE 1 x 230 V Input Power
Number of taps
1-5 6-10 11-20 21-50
Number of floors
4 CMBE 1-75 CMBE 1-75 CMBE 3-62 CMBE 3-93
3 CMBE 1-44 CMBE 1-75 CMBE 3-62 CMBE 3-62
2 CMBE 1-44 CMBE 1-44 CMBE 3-62 CMBE 3-62
1 CMBE 1-44 CMBE 1-44 CMBE 3-30 CMBE 3-62
Preconditions:
• A tap pressure of 45 psi is considered, to achieve a pressure of 60 psi, add two
floors.
• Flooded suction: Add more floors to compensate for low suction pressure.
• 7.9 gpm per tap average usage pattern is taken into account.
Grundfos cannot be held responsible for wrong sizing based on this guide.