DeDietrich DHW 100 HL Troubleshooting guide

EN
Domestic hot water tank
100 HL
M002324-B
Installation, User
and Service
Manual
300026877-001-02

Contents
1 Safety instructions and recommendations ..............................................4
1.1 Safety instructions ...............................................4
1.2 Recommendations ................................................4
1.3 Liabilities ...............................................................5
1.3.1 Manufacturer’s liability .............................................5
1.3.2 Installer’s liability .....................................................5
1.3.3 User’s liability ..........................................................6
2About this manual ......................................................................................7
2.1 Symbols used .......................................................7
2.1.1 Symbols used in the manual ...................................7
2.1.2 Symbols used on the equipment .............................7
2.2 Abbreviations ........................................................7
3Technical specifications ............................................................................8
3.1 Homologations ......................................................8
3.1.1 Certifications ...........................................................8
3.1.2 Directive 97/23/EC ..................................................8
3.1.3 Factory test .............................................................8
3.2 Technical specifications ......................................8
3.2.1 Characteristics of the DHW calorifier ......................8
3.2.2 Specifications of the DHW sensor ...........................9
3.2.3 Domestic hot water circulating pump ......................9
4Technical description ..............................................................................10
4.1 General description ............................................10
5 Installation ................................................................................................11
5.1 Regulations governing installation ...................11
5.2 Package list .........................................................11
5.2.1 Standard delivery ..................................................11
5.3 Choice of the location ........................................12
5.3.1 Type plate .............................................................12
5.3.2 Positioning of the appliance ..................................12
5.3.3 Main dimensions ...................................................13
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5.4 Positioning the appliance ..................................14
5.5 Fitting the DHW sensor ......................................16
5.6 Installing the domestic hot water temperature
sensor - Cable routing ........................................16
5.7 Installing the domestic hot water flow rate limiter
diaphragm ...........................................................16
5.8 Hydraulic connections .......................................17
5.8.1 Connecting the primary boiler circuit .....................17
5.8.2 Hydraulic connection of the secondary drinking water
circuit .....................................................................17
5.9 Electrical connections ........................................20
5.9.1 Recommendations ................................................20
5.9.2 Connecting the domestic hot water sensor ...........20
5.9.3 Connecting the DHW heating pump ......................21
5.9.4 Connecting the plate exchanger outlet ..................21
5.9.5 Connecting the impressed current anode .............21
5.9.6 Terminal block .......................................................22
5.10 Filling the system ...............................................23
5.10.1 Filling the domestic hot water circuit .....................23
5.10.2 Filling the primary boiler circuit ..............................23
6 Commissioning ........................................................................................24
6.1 Check points before commissioning ................24
6.1.1 Hydraulic circuits ...................................................24
6.1.2 Electrical connection .............................................24
Contents
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6.2 Commissioning procedure ................................25
7 Checking and maintenance .....................................................................26
7.1 General instructions ...........................................26
7.2 Safety valve or safety unit .................................26
7.3 Cleaning the casing material .............................26
7.4 Impressed current anode ...................................26
7.5 Cleaning the plate heat exchanger ...................27
7.6 Draining the installation .....................................28
7.7 Specific maintenance operations ......................28
7.8 Maintenance form ...............................................30
8 Spare parts ................................................................................................31
8.1 General ................................................................31
8.2 Spare parts ..........................................................32
9 Warranty ....................................................................................................34
9.1 General ................................................................34
9.2 Warranty terms ...................................................34
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1 Safety instructions and
recommendations
1.1 Safety instructions
CAUTION
Before any work, switch off the mains supply to
the appliance.
1.2 Recommendations
CAUTION
Do not neglect to service the appliance. Service
the appliance regularly to ensure that it operates
correctly.
WARNING
Only qualified professionals are authorised to
work on the appliance and the installation.
WARNING
Heating water and domestic water must not
come into contact with each other. Domestic
water must not circulate via the exchanger.
4To take advantage of the guarantee, no modifications
must be made to the appliance.
4To reduce heat losses as much as possible, insulate
the pipes.
Casing components
Only remove the casing for maintenance and repair
operations. Put the casing back in place after
maintenance and repair operations.
Instructions stickers
The instructions and warnings affixed to the appliance
must never be removed or covered and must remain
legible during the entire lifespan of the appliance.
Immediately replace damaged or illegible instructions and
warning stickers.
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1.3 Liabilities
1.3.1. Manufacturer’s liability
Our products are manufactured in compliance with the
requirements of the various applicable European
Directives. They are therefore delivered with [ marking
and all relevant documentation.
In the interest of customers, we are continuously
endeavouring to make improvements in product quality.
All the specifications stated in this document are therefore
subject to change without notice.
Our liability as the manufacturer may not be invoked in the
following cases:
4Failure to abide by the instructions on using the
appliance.
4Faulty or insufficient maintenance of the appliance.
4Failure to abide by the instructions on installing the
appliance.
1.3.2. Installer’s liability
The installer is responsible for the installation and
commissioning of the appliance. The installer must
respect the following instructions:
4Read and follow the instructions given in the manuals
provided with the appliance.
4Carry out installation in compliance with the prevailing
legislation and standards.
4Perform the initial start up and carry out any checks
necessary.
4Explain the installation to the user.
4If a maintenance is necessary, warn the user of the
obligation to check the appliance and maintain it in
good working order.
4Give all the instruction manuals to the user.
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1.3.3. User’s liability
To guarantee optimum operation of the appliance, the
user must respect the following instructions:
4Read and follow the instructions given in the manuals
provided with the appliance.
4Call on qualified professionals to carry out installation
and initial start up.
4Get your installer to explain your installation to you.
4Ensure the Appliance is serviced in accordance with
the manufacturer’s instructions by a suitable qualified
person.
4Keep the instruction manuals in good condition close
to the appliance.
This appliance is not intended to be used by persons
(including children) whose physcial, sensory or mental
capacity is impaired or persons with no experience or
knowledge, unless they have the benefit, through the
intermediary of a person responsible for their safety, of
supervision or prior instructions regarding use of the
appliance. Care should be taken to ensure that children
do not play with the appliance.
If the mains power lead is damaged it must be replaced
by the original manufacturer, the manufacturer’s dealer or
another competent person to prevent hazardous
situations.
100 HL 1. Safety instructions and recommendations
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2 About this manual
2.1 Symbols used
2.1.1. Symbols used in the manual
In these instructions, various danger levels are employed to draw the
user’s attention to particular information. In so doing, we wish to
safeguard the user’s safety, highlight hazards and guarantee correct
operation of the appliance.
DANGER
Risk of a dangerous situation causing serious physical
injury.
WARNING
Risk of a dangerous situation causing slight physical
injury.
CAUTION
Risk of material damage.
Signals important information.
¼Signals a referral to other instructions or other pages in the
instructions.
2.1.2. Symbols used on the equipment
Before installing and commissioning the device, read
carefully the instruction manuals provided.
Dispose of the used products in an appropriate recovery
and recycling structure.
2.2 Abbreviations
4CFC: Chlorofluorocarbon
4DHW: Domestic hot water
4ICA: Impressed current anode
2. About this manual 100 HL
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3 Technical specifications
3.1 Homologations
3.1.1. Certifications
This product complies to the requirements to the european directives
and following standards:
42006/95/EC Low Voltage Directive.
Reference Standard: EN 60.335.1.
42004/108/EC Electromagnetic Compatibility Directive.
Reference Standards: EN 50.081.1, EN 50.082.1, EN 55.014
3.1.2. Directive 97/23/EC
This product conforms to the requirements of european directive 97 /
23 / EC, article 3, paragraph 3, on pressure equipment.
3.1.3. Factory test
Before leaving the factory, each appliance is tested for the following:
4Water tightness
4Air tightness
3.2 Technical specifications
3.2.1. Characteristics of the DHW calorifier
DHW tank 100HL
Primary circuit (Heating water)
Maximum operating temperature °C 95
Maximum operating pressure bar (MPa) 3 (0.3)
Secondary circuit (domestic water)
Maximum operating temperature °C 95
Maximum operating pressure bar (MPa) 10 (1.0)
Water content l 100
Weight
Shipping weight (Foam coated domestic hot water tank) kg 55
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Performances related to the boiler type Gas fired floor-standing condensing boiler (1)
10/15 kW 15 kW 25 kW 35 kW
Power exchanged kW 15 15 28 32
Flow per hour (∆T = 35°C)(2) l/h 370 370 690 790
Specific flow (∆T = 30°C)(3) l/min 21 21 25.5 28
Draw-off capacity(3) l/10 mm 210 210 255 280
Qp: Primary flow rate m3/h 0.45 0.45 0.80 1.00
(1) Depending on the country in which the boiler is installed
(2) Domestic cold water inlet: 10 °C - Domestic hot water outlet: 45 °C - Primary circuit (heating water): 80 °C
(3) Domestic cold water inlet: 10 °C - Domestic hot water outlet: 40 °C - Primary circuit (heating water): 80 °C - Calorifier temperature: 60 °C
Performances related to the boiler type Floor-standing condensing oil boiler (1)
18 kW 24 kW 30 kW
Power exchanged kW 18 24 30
Flow per hour (∆T = 35°C)(2) l/h 440 590 740
Specific flow (∆T = 30°C)(3) l/min 21 24 26
Draw-off capacity(3) l/10 mm 210 240 260
Qp: Primary flow rate to reach the declared output of the primary
heater
m3/h 1.1 1.1 1.3
(1) Depending on the country in which the boiler is installed
(2) Domestic cold water inlet: 10 °C - Domestic hot water outlet: 45 °C - Primary circuit (heating water): 80 °C
(3) Domestic cold water inlet: 10 °C - Domestic hot water outlet: 40 °C - Primary circuit (heating water): 80 °C - Calorifier temperature: 60 °C
3.2.2. Specifications of the DHW sensor
Temperature in °C 10 20 25 30 40 50 60 70 80
Resistance in ohm 19691 12474 10000 8080 5372 3661 2536 1794 1290
3.2.3. Domestic hot water circulating pump
HManometric height
QWater flow
Q (m3/h)
H (m)
ZRS 15/4-3 KU
L000261-C
0
0,5
1
1,5
2
2,5
3
0 0,5 1 1,5 2 2,5
3. Technical specifications 100 HL
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4 Technical description
4.1 General description
The 100 HL domestic hot water tank is delivered ready for
connection to a boiler:
4AGC 10/15 - AGC 15 - AGC 25 - AGC 35
4AGC 35 BE
4GSCR 15 - GSCR 25 - GSCR 35
4CALORA TOWER GAS 25S EX
4CALORA TOWER GAS 35S
4CALORA TOWER GAS 15S DE - CALORA TOWER GAS 25S DE
- CALORA TOWER GAS 35S DE
4CALORA TOWER GAS 25S BE - CALORA TOWER GAS 35S BE
4CALORA TOWER OIL 18 - CALORA TOWER OIL 24 - CALORA
TOWER OIL 30
4CALORA TOWER OIL 18 LS - CALORA TOWER OIL 24 LS -
CALORA TOWER OIL 30 LS
Main parts:
4The tank is made of high quality steel and is lined with food safety
quality enamel vitrified at 850°C, which protects the tank from
corrosion.
4The tank is protected against corrosion by an impressed current
titanium anode (Titan Active System ®).
4The heat exchanger with plates is a device that allows water/water
exchanges.
4The appliance is insulated by CFC-free polyurethane foam, which
reduces heat losses to a minimum.
4The outside casing is made of painted steel sheeting.
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5 Installation
5.1 Regulations governing installation
CAUTION
Installation of the appliance must be done by a qualified
engineer in accordance with prevailing local and national
regulations.
CAUTION
France: The installation must comply in all matters to the
standards and rules which govern the work and
interventions in individual and collective homes, and other
constructions.
5.2 Package list
5.2.1. Standard delivery
The delivery includes:
4Complete calorifier
4Domestic hot water sensor
4Impressed current anode cable
4Domestic hot water temperature sensor cable
4Domestic hot water temperature sensor
4Flow rate limiter diaphragm
4DHW tank installation, operating and service manual
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5.3 Choice of the location
5.3.1. Type plate
The type plate must be accessible at all times.
The type plate identifies the product and provides the following
information:
4DHW calorifier type
4Manufacturing date (Year - Week)
4Serial number.
5.3.2. Positioning of the appliance
The DHW tank is installed under the boiler. To ascertain to
space to be allowed around the appliance in order to
facilitate access and maintenance, refer to the boiler’s
installation and service manual.
The installer must respect the following instructions:
4Install the appliance in frost-free premises.
4Place the appliance on a base frame to facilitate cleaning of the
premises.
4Install the appliance as close as possible to the drawing off points
in order to minimise energy losses through the pipes.
M002341-B
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5.3.3. Main dimensions
ADomestic cold water inlet G 3/4"
ZDomestic hot water outlet GG 3/4"
ELocation for recirculation loop G 3/4" (Option)
RPrimary boiler return G 3/4
TPrimary boiler flow G 3/4
YDHW drain valve 1/2"
USensor tube for DHW sensor
IImpressed current anode
OConnection for DHW expansion vessel (Option)
M002330-D
15 55
55
88
6
600
500
572
615
600
45
6
600
723
252356
52 120
123
8
7
9
5 4
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5.4 Positioning the appliance
CAUTION
4Have 2 people available.
4Handle the appliance with gloves.
1. Remove the packaging from the DHW calorifier, leaving the
calorifier on the pallet used for transport.
2. Remove the protective packaging.
3. Remove the 2 screws securing the calorifier to the pallet.
M002343-C
notice
handleiding
1
2
M002344-E
3
3
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4. Remove the front panel by pulling firmly from both sides.
5. Lift the calorifier and position it in its operating location.
6. Level the DHW tank using the adjustable feet.
(1) Adjustment range: 0 to 20 mm
M002411-C
4
M002345-D
5
M002346-F
NO
(1)
6
YES
YES
NO
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5.5 Fitting the DHW sensor
1. Remove the inspection trap insulation.
2. Put the DHW sensor in place.
3. Route the cable through the cable feed-through to the back of the
DHW tank.
5.6 Installing the domestic hot water temperature sensor - Cable routing
1. Clip the domestic hot water temperature sensor on to the plate
exchanger outlet. (The domestic hot water temperature sensor
can be found in the instruction pack.)
2. Fit the connectors for the domestic hot water temperature sensor.
3. Route the cable through the cable feed-through to the back of the
DHW tank.
5.7 Installing the domestic hot water flow rate limiter diaphragm
Boiler type Output (kW) Diaphragm
Floor-standing condensing gas boiler 10/15 ON
15 ON
25 OFF
35 OFF
M002356-D
2
1
3
M002413-F
1
2
3
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Boiler type Output (kW) Diaphragm
Floor-standing condensing oil boiler 18 ON
24 OFF
30 OFF
1. Unscrew the nut 1".
2. Remove the sheet gasket. Discard the sheet gasket.
3. Insert the gasket + diaphragm + gasket unit between the pipe and
the heating pump.
4. Retighten the nut.
5. Check the watertightness of the water connections.
6. Check the domestic hot water flow rate setting.
5.8 Hydraulic connections
5.8.1. Connecting the primary boiler circuit
¼Refer to the connecting kit manual.
5.8.2. Hydraulic connection of the secondary
drinking water circuit
When making the connections, it is imperative that the standards and
corresponding local directives are respected.
The tanks inside the domestic hot water tanks can run at a maximum
operating pressure of 10 bar (1 MPa). The recommended operating
pressure is under 7 bar (0.7 MPs).
nSpecific precautions
Before making the connection, rinse the drinking water inlet
pipes in order not to introduce metal or other particles into the
appliance’s tank.
C003494-C
NEW
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nProvision for Switzerland
Make the connections according to the instructions of the Société
Suisse de l’Industrie du Gaz et des Eaux. Comply with local
instructions from water distribution plants.
nSafety valve
CAUTION
In compliance with the safety rules, fit a safety valve to the
domestic cold water tank inlet.
France: We recommend NF-marked hydraulic membrance safety
control units.
All countries except Germany: 7 bar safety valve (0.7 MPa).
Germany: 10 bar safety valve (1.0 MPa) maximum.
4Integrate the safety valve in the cold water circuit.
4Install the safety valve close to the calorifer in a place which is
easy to access.
nSize
4The diameter of the safety unit and its connection to the calorifer
must be at least equal to the diameter of the domestic cold water
inlet on the calorifer.
4There must be no cut-off element between the valve or the safety
unit and the domestic hot water calorifer.
4The outlet pipe in the valve or safety assembly must not be
blocked.
To avoid restricting the flow of water in the event of overpressure:
4The safety device drain pipe must have a uniform and sufficient
gradient and its diameter must be at least equal to that of the outlet
opening of the safety device (to prevent the flow of water being
hindered if the pressure is too high).
4The cross section of the discharge pipe from the safety unit must
be at least equal to the cross section of the opening of the safety
unit outlet.
Germany: Define the dimensions of the safety valve in accordance
with the DIN 1988 standard.
Capacity (litres)
Dimension of the valve
Min. dimension of the inlet
connection
Heating output
(kW) (max)
< 200 R or Rp 1/2 75
200 to 1000 R or Rp 3/4 150
4Fit the safety valve above the calorifer to avoid draining the tank
during servicing.
4Install a drainage valve at the lowest point on the calorifer.
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nIsolating valves
Hydraulically isolate the primary and secondary circuits using stop
valves to facilitate maintenance operations on the unit. The valves
make it possible to carry out maintenance on the calorifer and its
components without draining the entire installation.
These valves are also used to isolate the calorifer unit when
conducting a pressurised check on the leak tightness of the
installation if the test pressure is greater than the admissible operating
pressure.
CAUTION
If the mains pipes are made of copper, fit a sleeve made
of steel, cast iron or any other insulating material between
the tank’s hot water outlet and the pipes to prevent
corrosion to the connection.
nConnecting the domestic cold water
Make the connection to the cold water supply according to the
hydraulic installation diagram.
¼Refer to the installation and maintenance instructions of the
boiler
Install a water drain in the boiler room and a funnel-siphon for the
safety unit.
The components used for the connection to the cold water supply
must comply with the prevailing standards and regulations in the
country concerned. Fit a one-way valve to the domestic cold water
circuit.
Make the connection to the cold water supply according to the
hydraulic installation diagram.
¼Refer to the installation and maintenance instructions of the
boiler
Install a water drain in the boiler room and a funnel-siphon for the
safety unit.
The components used for the connection to the cold water supply
must comply with the prevailing standards and regulations in the
country concerned. Fit a one-way valve to the domestic cold water
circuit.
4In regions where the water is very hard (Th > 20°F), we
recommend fitting a softener. Water hardness must always be
between 12°F and 20°F to be capable of providing effective
protection against corrosion. The softener does not bring about a
derogation from our warranty provided that it is approved and set
pursuant to the codes of practice and is regularly inspected and
maintained.
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