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3.4 Version
Speed-controlled compact booster unit with:
• 1 normal sucking, vertical high-pressure rotary pump with all components
in contact with the medium made of stainless steel
• High efficiency motor with frequency inverter, energy efficiency class IE4
according to IEC-CD 60034 - 30 ED. 2
• Check valve
• Shut-off valve on the inlet and outlet sides
• Diaphragm expansion vessel on the outlet side as vessel
• Pressure sensor on the pressure side
• Vibration damper between pump and base frame
• Pressure gauge display
• Shut-off valve, lockable
• Piping made of stainless steel
• The system is connected to the installation pipeline with G1 ¼", G2" or G2
1/2" (depending on version)
• Base frame made of coated steel
Self-cooled frequency converter adapted on the motor
Refer to instructions of frequency inverter
Buffer tank made of polyethylene with:
• Non-circular, free overflow according to EN 13077, Type AB
• Drainage connection with integrated siphon trap:
DN100 for CBU146-32A-060 and CBU146-40A-060
DN150 for CBU146-50A-060, CBU146-65A-060,
CBU146-65B-060 and CBU146-80B-060
• Tank volume according to DIN 1988-500 or individual approved
• Potable water backfeed via float valve, suitable for potable water
Switch cabinet consists of:
• Power supply connection via 3/N/PE, AC 400V, 50Hz
• Lockable emergency stop main switch (repair switch)
• LED, green for normal function, yellow for warning, red for alarm and
description text in the display
• Motor protection device (Included in the frequency inverter)
• Terminal strip/clamps with labels for all connections
• Plug connectors to connect easily with the electrical equipment fitted to
the supply container.
Messages sent via potential-free contact for
• Alarms and warnings
• Pump run indicator
3.5 Options
CBU146-32A-060
refer to technical data for type selection
CBU146-40A-060
refer to technical data for type selection
CBU146-50A-060
refer to technical data for type selection
CBU146-65A-060
refer to technical data for type selection
CBU146-65B-060
refer to technical data for type selection
CBU146-80B-060
refer to technical data for type selection
Honeywell GmbH
GB
4. Function
4.1 Inlet side
On the inlet side there is a buffer tank. It has a floating valve on its inlet to
refill water. The water level is measured with two float switches. They send
messages in the case of water shortage and overflow. The overflow has an
integrated siphon trap and can be directly connected to the drain.
1
2/3
4
5
Figure 2:
CBU146 Inlet side
4.2 Outlet side
On the outlet side there is a diaphragm expansion vessel as well as a pres-
sure sensor and a pressure gauge.
Figure 3:
CBU146 Outlet side
4.3 Indicator LED
LED, green for normal function, yellow for warning, red for alarm and
description text in the display
4.4 Mode of operation
The pump is switched on based on pressure, and off based on quantity, by a
fully-automatic control unit. If a pre-set pressure setting is exceeded, the
pump switches on and the frequency converter regulates the compact buster
unit to the set value, so that a constant pressure is always available. The
speed decreases as consumption reduces and the compact booster unit
switches off after a set minimum run time (0 to 600 seconds, default set to
60 seconds).
8
Translation of original - MU1H-1376GE23 R1215
1
Buffer tank
2
Floating valve
3
Float switch
4
Overflow
5
Siphon trap
1
Diaphragm expansion
vessel
2
Pressure sensor
3
Pressure gauge
2
1
3
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