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English (GB) Installation and operating instructions
Original installation and operating instructions.
CONTENTS
1.
Symbols used in this document
2.
General
2.1 Applications
2.2 Operating conditions
3.
Product description
4.
Operation and functions
4.1 Single-phase versions
4.2 Three-phase versions
5.
Installation
5.1 Location
5.2 Foundation
5.3 Pipework
5.4 Dry-running protection
5.5 Tank selection
5.6 Priming
5.7 Electrical connection
6.
Settings
6.1 Pressure switch
6.2 Tank precharge pressure
6.3 Setting procedure
7.
Start-up
8.
Maintenance
8.1 Maintenance of booster set
8.2 Maintenance of CS 103
8.3 Checking the precharge pressure
9.
Technical data
10. Fault finding chart
11. Disposal
Warning
Prior to installation, read these installation and
operating instructions. Installation and operation
must comply with local regulations and accepted
codes of good practice.
Warning
The use of this product requires experience with
and knowledge of the product.
Persons with reduced physical, sensory or
mental capabilities must not use this product,
unless they are under supervision or have been
instructed in the use of the product by a person
responsible for their safety.
Children must not use or play with this product.
1. Symbols used in this document
Warning
If these safety instructions are not observed,
it may result in personal injury!
If these safety instructions are not observed,
Caution
it may result in malfunction or damage to the
equipment!
Notes or instructions that make the job easier
Note
and ensure safe operation.
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2. General
2.1 Applications
Grundfos Hydro Pack booster sets are designed for the transfer
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and pressure boosting of clean water in waterworks, blocks of
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flats, hotels, industry, hospitals, schools, etc.
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2.2 Operating conditions
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Liquid temperature:
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6
Ambient temperature:
7
7
Operating pressure:
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Minimum inlet
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pressure:
7
7
7
7
7
8
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Maximum inlet
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pressure:
9
9
9
9
Start/stop frequency:
9
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Liquid temperature and operating pressure may be limited by the
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diaphragm tank (or bladder tank).
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3. Product description
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The Hydro Pack booster set consists of a Grundfos CHV pump
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mounted on a base frame, discharge components, five-way
fitting, pressure gauge and pressure switch.
Three-phase versions also include a control cabinet incorporating
the CS 103 controller.
A diaphragm tank (or bladder tank) must be included in the
installation. The tank must be installed on the floor/wall and can
be connected directly to the five-way fitting. See section 5.5.
4. Operation and functions
The pump operates automatically according to system
requirement by means of a pressure switch.
Function:
•
When a tap is opened, water is drawn from the diaphragm tank
(or bladder tank).
•
When the pressure drops to the cut-in pressure, the pump will
start.
•
When the water consumption falls, the discharge pressure
rises to the cut-out pressure and the pump will stop.
0 °C to +40 °C.
0 °C to +40 °C.
Maximum 10 bar.
In accordance with the NPSH curve
plus other losses and a safety
margin of at least 0.5 metres
(1.64 feet) when pumping airless
water.
The safety margin should be
increased when air-containing water
is pumped.
The actual inlet pressure plus the
pressure when the pump is operating
against a closed valve should always
be lower than the maximum
operating pressure, i.e. 10 bar.
Maximum 100 per hour.
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