Honeywell CBU144 Series Instructions Manual Download Page 7

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EN1H-1374GE23 R1014 - Translation of original

Honeywell GmbH

3. Description

Honeywell Compact Booster Unit - single pump CBU144 as a safety device
to separate potable water from category 5 fluids according to DIN EN 1717
for fire extinguisher applications acc. to DIN 14462 and DIN1988-600 with
free outlet type AB and a vertical high-pressure pump.
Fully automatic, fully wired Compact Booster Unit-single pump with modular
design comprising a single pump system and a buffer tank for the hygienic
separation of potable water and category 5 fluids according to DIN EN 1717,
on a common base frame. The modular design makes it possible to discon-
nect modules for installation in buildings with limited space. The system is
switched on and off regulated by pressure.
Separation of systems as a means to protect potable water from being
contaminated by fluids of the category 5 according to DIN EN 1717

3.1 Intended use

The compact booster unit may only be operated in such areas as described
in the other applicable documents.
Non-intended operation of the compact booster unit can result in danger to
persons, systems, the surroundings and the environment.
• Operate the compact booster unit only if it is in perfect working condition.
• Do not operate the compact booster unit if it is only partially assembled.
• The compact booster unit may only be used to pump the medium as

described in the documentation of the respective version.

• Never operate the compact booster unit without pump medium.
• Observe the values for minimum pumping rates (avoiding damage

because of overheating, storage damage, ...).

• Observe the values for maximum pumping rates (to avoid damage due to

overheating, floating ring seal damage, cavitation damage, storage
damage, ...).

• Do not throttle the input of the compact booster unit (to avoid cavitation

damage).

• Other modes of operations, if not mentioned in the documentation, have

to be coordinated with the manufacturer.

3.2 Non-intended use

The compact booster unit is not designed for operation outside. Tempera-
ture, light and moisture can lead to malfunctions and damaging devices.
• Do not operate the compact booster unit outside.
• Operate the compact booster unit only as intended.
• Do not fill aggressive or flammable medium into the medium lines of the

system.

• No mechanical stress on housings (e.g. by depositing objects or as a

step).

• Do not perform any external modifications on the device housing. Do not

paint housing parts and screws!

• Do not disassemble the compact booster unit more than is necessary for

purposes of installation and maintenance.

3.3 Version

The Compact Booster Unit consists of the following modules, that can be
disassembled (for example for transport purposes).
• The single pump booster unit has a pump, a control unit, valves and

connected piping. The pressure switch and temperature sensor are
installed, wired and preset with standard default values in the factory.

• Buffer tank with inlet and flushing apparatus as well as level, overflow and

dry running monitor. The components are assembled and preset in the
factory. The electrical components are connected to the control unit of the
booster station with plug connections. Thus if required an electric separa-
tion can be made.

• A common base frame for the double pump booster unit and the buffer

tank that allows tranportation with a standard pallet hand forklift.The
pumps and base frame are equipped with vibration dampers.

3.3.1 Structure

A single pumping system made up of:

• a normal sucking, vertical high-pressure rotary pump with all components

in contact with the medium made of stainless steel

• Standard-motor each pump, energy efficiency class IE2
• Check valves
• Shut-off valve on the inlet and outlet sides
• Diaphragm expansion vessel on the outlet side as vessel
• Vibration damper
• Pressure gauge display
• Shut-off valve, lockable
• Pump protection through temperature related minimum flow
• Piping made of chrom-nickel-steel alloy
• The system is connected to the installation pipeline with circular flanges
• Base frame made of coated steel

Electrical switching apparatus with an electro-mechanical control unit
comprising:

• Power supply via 3/N/PE, 400V AC, 50Hz
• Main switch that is protected against unauthorised operation
• Control transformer 400V / 230V- 24V
• Green indicator light for standby
• Red indicator light for water shortage
• Yellow indicator light for malfunction
• White indicator light for operation on demand
• Manual/automatic switch
• Timer for 24 hour functional operation and weekly flushing cycle
• Remote on/off, protected against wire breakage and short circuit
• Phase monitor relays with rotation monitoring and phase failure protection
• Smooth operated start-up
• Motor protection device, in case of failure only indicates an alarm
• Terminal strip with markings for all connections
• Plug connectors for easy connection of electrical equipment on the buffer

tank

Terminal strip for potential-free contact for time-delayed potable water
separation (adjustable)

• Control voltage 230V, AC 6A

Buffer tank made of polyethylene with:

• Non-circular, free overflow according to DIN EN 13077, Type AB
• Drainage connection DN 100 (nozzles) with integrated siphon trap
• Usable volume 540 litres
• Refilling of potable water via float valve
• Automatic flushing device via solenoid valve
• Sensors for monitoring of dry running and overflow

Pump medium

Non-potable water
Without aggressive, abrasive and solid
components

Flow rate

max. 48 m

/h (13,3 l/s)

Pumping head

up to 125 m

Medium temperature

up to 30 °C

Ambient temperature

up to 40 °C

Pressure rating