Grundfos GT-C Manuel utilisateur
GT-C, GT-CF, GT-D, GT-DF, GT-H
Installation and operating instructions
GRUNDFOS INSTRUCTIONS
GT-C, GT-CF, GT-D, GT-DF, GT-H
English (GB)
Installation and operating instructions ..................................5
Čeština (CZ)
Montážní a provozní návod ........................................11
Deutsch (DE)
Montage- und Betriebsanleitung .....................................17
Dansk (DK)
Monterings- og driftsinstruktion ......................................23
Español (ES)
Instrucciones de instalación y funcionamiento............................29
Suomi (FI)
Asennus- ja käyttöohjeet ..........................................35
Français (FR)
Notice d'installation et de fonctionnement...............................41
Ελληνικά (GR)
Οδηγίες εγκατάστασης και λειτουργίας.................................47
Magyar (HU)
Telepítési és üzemeltetési utasítás ...................................53
Italiano (IT)
Istruzioni di installazione e funzionamento ..............................59
Nederlands (NL)
Installatie- en bedieningsinstructies ...................................65
Polski (PL)
Instrukcja montażu i eksploatacji.....................................71
Português (PT)
Instruções de instalação e funcionamento ..............................77
Română (RO)
Instrucţiuni de instalare şi utilizare....................................83
Svenska (SE)
Monterings- och driftsinstruktion .....................................89
Slovenčina (SK)
Návod na montáž a prevádzku ......................................95
Türkçe (TR)
Montaj ve kullanım kılavuzu .......................................101
3
Table of contents
English (GB) Installation and operating instructions
Original installation and operating instructions
Table of contents
1. General information ............. 5
1.1 Hazard statements .............. 5
1.2 Notes ..................... 5
1.3 Target group.................. 6
2. Product introduction ............ 6
2.1 Product description .............. 6
2.2 Identification.................. 6
3. Installation requirements .......... 7
3.1 Lifting the product ............... 7
3.2 Location .................... 7
4. Mechanical installation ........... 7
4.1 Installing the product ............. 7
4.2 Positioning the product ............ 7
4.3 Precharge pressure.............. 8
5. Maintenance ................. 9
5.1 Maintenance schedule ............ 9
5.2 Checking the GT tank for damage ...... 9
6. Fault finding ................. 9
7. Technical data ................ 9
8. Disposing of the product .......... 9
9. Certificates ..................10
10. Declaration of Conformity .........10
1. General information
This appliance can be used by children
aged from 8 years and above and persons
with reduced physical, sensory or mental
capabilities or lack of experience and
knowledge if they have been given
supervision or instruction concerning use
of the appliance in a safe way and
understand the hazards involved.
Children shall not play with the appliance.
Cleaning and user maintenance shall not
be made by children without supervision.
Read this document before you install the
product. Installation and operation must
comply with local regulations and accepted
codes of good practice.
1.1 Hazard statements
The symbols and hazard statements below may
appear in Grundfos installation and operating
instructions, safety instructions and service
instructions.
DANGER
Indicates a hazardous situation which, if
not avoided, will result in death or serious
personal injury.
WARNING
Indicates a hazardous situation which, if
not avoided, could result in death or
serious personal injury.
CAUTION
Indicates a hazardous situation which, if
not avoided, could result in minor or
moderate personal injury.
The hazard statements are structured in the following
way:
SIGNAL WORD
Description of the hazard
Consequence of ignoring the warning
• Action to avoid the hazard.
1.2 Notes
The symbols and notes below may appear in
Grundfos installation and operating instructions,
safety instructions and service instructions.
Observe these instructions for explosion-
proof products.
A blue or grey circle with a white graphical
symbol indicates that an action must be
taken.
A red or grey circle with a diagonal bar,
possibly with a black graphical symbol,
indicates that an action must not be taken
or must be stopped.
If these instructions are not observed, it
may result in malfunction or damage to the
equipment.
Tips and advice that make the work easier.
5
English (GB)
1.3 Target group
These installation and operating instructions are
intended for professional as well as non-professional
users.
2. Product introduction
2.1 Product description
Grundfos GT-H, GT-C, GT-D, GT-DF, and GT-CF
pressure tanks are suitable for stabilizing pressure in
domestic and industrial applications.
GR-1032798
2.1.1 Intended use
• GT-H is a diaphragm tank for use in cold-water
systems. The horizontal version has a base plate
for mounting a pump.
• GT-C is a composite tank for a wide range of
applications.
• GT-CF is a composite tank with FlowThru
technology for use in cold-water systems.
• GT-D is a chlorine-resistant double-diaphragm
tank.
• GT-DF is a double-diaphragm tank with FlowThru
technology.
The table below shows the tank types in relation to
the application.
Application Tank type
GT-C GT-H GT-CF GT-D GT-DF
Drinking water ● ● ● ● ●
Grey
wastewater* ● ● - ● -
Seawater ● - - - -
● Recommended.
- Not recommended.
* Grey wastewater is domestic wastewater, for
example, from dishwashers, washing machines, and
cabinet showers.
2.2 Identification
2.2.1 Nameplate
DK - 8850 Bjerringbro Denmark
1234 5 6 789 10
11
12
13
1415
16
17
1819
20
21
Part No.
Commercial Type
Model No.
Configuration Key
Manufactured for GRUNDFOS by Global Water Solutions Ltd. Production site: TankPAC Industries
Max. Temperature
Max. Shell Temperature
Prod. year/week
Min. Temperature Made in
0 0 3 5
Water Mark
AT8620L485
AGA00044
COLD WATER
APPLICATIONS
Design Type Max. Working Pressure Test Pressure Factory Precharge
Serial No. Nominal Volume Effective Volume Connection
Modified Precharge (if applicable)
TM077028
Example of nameplate
Pos. Description
1 Product number
2 Type designation
3 Serial number
4 Design type
5 Nominal volume
6 Max. working pressure
7 Effective volume
8 Test pressure
9 Thread connection
10 Factory precharge pressure
11 Adjustment of precharge
pressure
12 Country of origin
13 Marking
14 Notified body
15 Min. working temperature
16 Max. working temperature
17 Max. shell temperature
6
English (GB)
Pos. Description
18 Production code (year and week)
19 Manufacturer
20 Configuration code
21 Model number
3. Installation requirements
Installation and operation must comply
with local regulations and accepted codes
of good practice.
Before installation, check the following:
• Do the GT tank specifications correspond to your
order?
• Are all visible parts intact?
• Is the maximum system pressure lower or equal
to the maximum operating pressure for the GT
tank? See tank nameplate.
3.1 Lifting the product
The top of large tanks has a welded-on flange or nut
in which a lifting eye can be fitted. When the tank is in
place and secured to the floor, the lifting eye can be
removed.
3.2 Location
• The GT tank must be installed in the outlet pipe as
close to the pump as possible.
• The GT tank must be installed in a frost-free
room.
• For inspection purposes, the GT tank should be
accessible from all sides. The air-filling valve,
water shut-off, and outlet must be accessible, and
the nameplate must be visible.
• The GT tank must be installed so that it is not
stressed by the pipes. Should the vibrations occur,
we recommend installing the GT tank in a way
that ensures the vibrations are absorbed.
4. Mechanical installation
4.1 Installing the product
Before installation, do the following:
1. Check that the specifications of the GT tank
correspond to the order.
2. Check that all visible parts are intact.
3. Check that the maximum system pressure is
lower or equal to the maximum operating pressure
for the GT tank.
See tank nameplate.
4.2 Positioning the product
We recommend following these steps:
1. Lift and position the GT tank.
2. Level as required (horizontally and vertically).
3. Secure the GT tank.
4. Connect the pipes and fittings.
5. Check/adjust the precharge pressure.
6. Start the pump or application.
No additional loads from the pipe system
or equipment are allowed.
4.2.1 Floor installation
Large GT tanks must be secured to the floor with
bolts. Use bolts, washers, and nuts that are suitable
for the surface of the floor or base frame. Ensure that
all bolt holes are used in the base frame when
securing the GT tank.
Tanks with steel bases should be mounted using the
supplied brackets, while tanks with plastic bases
should be mounted through the bolt holes in the base.
For bases without bolt holes, drill four holes at equal
distance in the rim of the base.
TM055778
Installation of the tank with a steel base
7
English (GB)
TM055777
Installation of the tank with a plastic base
4.2.2 Wall installation
Small GT tanks up to 35 litres must be secured to a
wall or similar.
TM055781
Example of wall installation with a wall bracket
(product no. 00ID9070)
4.3 Precharge pressure
The GT tanks are supplied from the factory with a
precharge pressure. See tank nameplate.
The precharge pressure must be adjusted according
to the actual application and the installed pump.
The precharge pressure must be slightly below the
pump cut-in setting.
Recommended precharge pressures:
• 0.9 x setpoint for fixed-speed pumps
•0.7 x setpoint for variable-speed pumps.
Precharge pressure
4.3.1 Adjusting the precharge pressure
Before starting work on the product, make
sure there is no system pressure on the
tank.
Disconnect pumps or switch off the power
supply.
If the precharge pressure is not suitable for the
application, adjust it as follows:
1. Switch off the pump. Open the nearest tap to
make sure that no system pressure is affecting
the reading.
2. Remove the protective cap.
3. Check the precharge pressure with a suitable
pressure gauge.
4. Release or add air as required to make the
precharge pressure equal to the recommended
precharge pressure.
5. Fit the protective cap to prevent air from escaping
from the tank.
Never exceed the maximum operating
pressure of the tank.
4.3.2 System check
The GT tank must be bypassed if the system
pressure exceeds the maximum operating pressure
of the GT tank during a system check.
4.3.3 Isolating valves
We recommend installing an isolating valve in
connection with the GT tank.
8
English (GB)
Isolating valves
4.3.4 Maximum operating pressure
The maximum operating pressure of the pump (p2)
plus the actual inlet pressure (p1) must not exceed
the maximum operating pressure of the GT tank (p3).
See figure Maximum operating pressure.
See pump and tank nameplates.
p1
p2
p3
TM051656
Maximum operating pressure
4.3.5 Relief valve
Install a relief valve. Set the relief valve to open at or
below the maximum operating pressure of the GT
tank. This will protect the GT tank and other system
components. The relief valve should be installed at
the connection of the GT tank to the pipe system and
have a discharge equal to the pump capacity at
maximum operating pressure.
Relief valve
5. Maintenance
The GT tank is maintenance-free, but we recommend
checking the tank for damage two times a year.
If the tank is removed, when the tank
and/or the system is still pressurized,
make sure that the tank is without
pressure.
Close the isolating valves and remove the
precharge pressure through the air valve.
5.1 Maintenance schedule
• Check the precharge pressure annually.
• Before checking the pressure, make sure that
there is no water in the GT tank (switch off the
pump, and open a tap).
• If water escapes during the precharge pressure,
check whether the bladder is defective.
5.2 Checking the GT tank for damage
During maintenance, check the following:
1. Is corrosion visible?
2. Are scratches, dents, etc., visible?
In case of serious damage, contact your nearest
Grundfos company.
6. Fault finding
Fault Cause Remedy
Frequent
starts/stops.
a) Incorrect
precharge pressure.
Adjust the
pressure
according to
section
Precharge
pressure.
b) Diaphragm
broken. Water
escapes if the air
valve is pushed
down.
Replace the GT
tank.
7. Technical data
See tank nameplate.
8. Disposing of the product
This product or parts of it must be disposed of in an
environmentally sound way.
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest
Grundfos company or service workshop.
The crossed-out wheelie bin symbol
on a product means that it must be
disposed of separately from household
waste. When a product marked with
this symbol reaches its end of life, take
it to a collection point designated by
the local waste disposal authorities.
The separate collection and recycling
of such products will help protect the
environment and human health.
9
English (GB)
See also end-of-life information at
www.grundfos.com/product-recycling.
9. Certificates
Contact Grundfos for more information on the product
certificates.
10. Declaration of Conformity
For more information on the Declaration of
Conformity, scan the QR code to access Global
Water Solutions Ltd (GWS) website:
QRTM078944
https://www.globalwatersolutions.com/DOC
10
English (GB)
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