Bosch Tronic TR4500T 80 EB Installation Manual


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Bosch Tronic TR4500T 80 EB Installation Manual | Manualzz

User and Installation manual

Electrical storage water tank

Tronic

TR4500T 30|50|80|100|120|150 EB

Index

Index

1 Key to symbols and safety instructions . . . . . . . . . . 3

1.1

1.2

Key to symbols . . . . . . . . . . . . . . . . . . . . . . . 3

Security Measures . . . . . . . . . . . . . . . . . . . . . 3

2 Technical Characteristics and dimensions . . . . . . . 6

2.1

Intended use . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2

Type overview . . . . . . . . . . . . . . . . . . . . . . . . 6

2.3

2.4

2.5

Appliance Description . . . . . . . . . . . . . . . . . . 6

Anticorrosion protection . . . . . . . . . . . . . . . . 6

Accessories (included in the appliance

2.6

2.7

2.8

packaging) . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Technical specifications . . . . . . . . . . . . . . . . 7

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Electrical wiring diagram . . . . . . . . . . . . . . . 9

8.1.2

Safety valve verification . . . . . . . . . . . . . . . 17

8.1.3

Safety valve . . . . . . . . . . . . . . . . . . . . . . . . . 17

8.1.4

Maintenance and repair . . . . . . . . . . . . . . . 17

8.2

Periodic maintenance work . . . . . . . . . . . . 17

8.2.1

Functionality verification . . . . . . . . . . . . . . 17

8.2.2

Magnesium Anode . . . . . . . . . . . . . . . . . . . . 17

8.2.3

8.3

Periodic cleaning . . . . . . . . . . . . . . . . . . . . . 18

8.2.4

Long standing - non working

(more than 3 months) . . . . . . . . . . . . . . . . .18

Required actions after any maintenance work has been carried out . . . . . . . . . . . . . .18

9 Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

9.1 Indication of errors . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3 Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4 Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.1

Transport, storage and recycling regulations . . . . . . . . . . . . . . . . . . . . . . . . . 10

5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

5.1

5.2

5.3

Important notes . . . . . . . . . . . . . . . . . . . . . . 10

Siting the appliance . . . . . . . . . . . . . . . . . . . 10

Wall mounting . . . . . . . . . . . . . . . . . . . . . . . 11

5.4

5.5

5.6

Water connection . . . . . . . . . . . . . . . . . . . . 11

Electrical connections . . . . . . . . . . . . . . . . . 13

Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

6 Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

6.1

Turning the appliance on/off . . . . . . . . . . . 15

6.2

6.3

Operating the heater – manual setting . . . 15

Operation of the heater in

6.4

6.5

the "BOOST" mode . . . . . . . . . . . . . . . . . . . 15

The Anti-Legionella Function . . . . . . . . . . . 15

Emptying the appliance . . . . . . . . . . . . . . . 16

7 Environment / disposal . . . . . . . . . . . . . . . . . . . . . . . 16

8 Inspection/Maintenance . . . . . . . . . . . . . . . . . . . . . 17

8.1

User information . . . . . . . . . . . . . . . . . . . . . 17

8.1.1

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2 Tronic – 6 720 884 457 (2018/02)

Key to symbols and safety instructions

1 Key to symbols and safety instructions

1.1

Key to symbols

Warnings

Warnings in this document are identified by a warning triangle printed against a grey background.

Keywords at the start of a warning indicate the type and seriousness of the ensuing risk if measures to prevent the risk are not taken.

The following keywords are defined and can be used in this document:

• NOTICE indicates a situation that could result in damage to property or equipment.

• CAUTION indicates a situation that could result in minor to medium injury.

• WARNING indicates a situation that could result in severe injury or death.

• DANGER indicates a situation that will result in severe injury or death.

Important information

This symbol indicates important information where there is no risk to people or property.

Additional symbols

Symbol Explanation

Step in an action sequence

Cross-reference to another part of the document

List entry

List entry (second level)

Table 1

1.2

Security Measures

Installation

▶ Installation must only be carried out by an authorised service.

▶ IEC 60364-7-701 must be observed when installing the appliance and or electrical accessories.

▶ The appliance must be installed in a room free from the risk of frost.

▶ First connect the appliance hydraulically and fill with water, then connect the power supply.

▶ During the installation isolate the appliance from the power supply.

▶ In a closed, pressurised system of installation, it is obligatory to install a safety valve on the inlet pipe with a rated pressure of 0.6 MPa (6 bar),

0.9 MPa (9 bar) or 1.0 MPa (10 bar)

(see the label), which prevents the elevation of pressure in the boiler by more than 0.1 MPa (1 bar) above the rated pressure.

▶ Water may drip from the outlet opening of the safety valve, so the outlet opening should be set to atmospheric pressure.

▶ The outlet of the safety valve should be installed facing downwards and in a non-freezing area.

▶ To ensure proper functioning of the safety valve, the user should perform regular controls to remove limescale and make sure the safety valve is not blocked.

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Key to symbols and safety instructions

Installation and conversion

▶ Only permit an authorised service to install this appliance.

▶ Do not install a stop valve between the water heater and the safety valve, because it will impair the pressure protection of the heater!

▶ Before connecting it to the power supply, the water heater must be filled with water!

▶ The heater is equipped with an additional thermal cut-off for protection in case of failure of the operating thermostat. In this case, however, the temperature of the water in the heater can reach up to

130 °C according to the safety standards. During the water supply installation, the possibility of temperature overloads should be taken into account.

▶ If the heater is to be disconnected from the power supply, please drain any water from the heater to prevent freezing.

▶ Water can be drained from the heater through the boiler inlet pipe. For this purpose it is advisable to install a T- element with an outlet valve between the inlet pipe and safety valve.

▶ Never obstruct the safety valve outlet.

▶ During the heat-up, water may be expelled from the safety valve.

Maintenance

▶ Only authorised technicians are permitted to service this appliance.

▶ Isolate the appliance from its power supply before commencing any maintenance work on the appliance.

▶ Customers are responsible for the safety and environmental compatibility of the appliance as well as its maintenance.

▶ Use only original spare parts.

▶ To ensure compliance with all safety requirements, a defective power cable may only be replaced by an authorised service.

▶ Please do not try to fix any defects of the water heater on your own. Call the nearest authorised service provider.

Instructing the customer (for the installer)

▶ Instruct the customer in the function and operation of this appliance.

▶ It is the responsibility of customers to carry out regular maintenance and inspections.

▶ The appliance must be serviced annually.

▶ Inform customers that they must not carry out any modifications or repairs.

Safety of electrical appliances for domestic use and similar purposes

The following requirements apply in accordance with EN 60335-1 in order to

4 Tronic – 6 720 884 457 (2018/02)

prevent hazards from occurring when using electrical appliances:

“This appliance can be used by children of 8 years and older, as well as by people with reduced physical, sensory or mental capabilities or lacking in experience and knowledge, if they are supervised and have been given instruction in the safe use of the appliance and understand the resulting dangers. Children must not play with the appliance. Cleaning and user maintenance must not be performed by children without supervision.”

“If the power cable is damaged, it must be replaced by the manufacturer, its customer service department or a similarly qualified person, so that risks are avoided.”

Key to symbols and safety instructions

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Technical Characteristics and dimensions

2 Technical Characteristics and dimensions

2.1

Intended use

The appliance was designed to heat and store DHW. Comply with all regulations and standards related to drinking water applicable in the country.

Using the appliance for any other purpose will be considered incorrect use. Bosch accepts no liability for any damage resulting from such use.

Water characteristics

Water hardness, min.

pH, min. – max.

Conductivity, min. – max.

Table 2 Water characteristics

Unit ppm grain/US gallon

°dH

μS/cm

120

7.2

6.7

6.5 – 9.5

130 – 1500

2.2

Type overview

TR

TR

TR

TR

TR

TR

4500

4500

4500

4500

4500

4500

Table 3

[TR] Tronic

[4500] Version

[T]

[30]

[E]

[B]

Tank

Capacity (liters)

Electronic

Bottom connections

T

T

T

T

T

T

100

120

150

30

50

80

E

E

E

E

E

E

B

B

B

B

B

B

2.3

Appliance Description

• Steel-glassed tank in conformity with the European regulations

• Tank designed and built to withstand high pressures

• Exterior material: steel sheeting and / or plastic

• Easy handling

• Insulating material: polyurethane without CFC

• Anticorrosion protection: magnesium anode.

2.4

Anticorrosion protection

The inside of the tank is lined with homogeneous glass enamel, completely neutral with regards to compatibility and contact with potable water. This lining is neutral with regard to the use with potable water. The existence of a magnesium anode provides additional anticorrosion protection.

2.5

Accessories (included in the appliance packaging)

Fig. 1

[1] Bracket

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Technical Characteristics and dimensions

2.6

Technical specifications

This appliance meets the requirements specified by the

European Directives 2014/35/EC and 2014/30/EC.

Technical characteristics Unit TR4500 30 TR4500 50 TR4500 80 TR4500

100

General characteristics

Declared load profile

Energy efficiency class

1)

Water heating energy efficiency

(

 wh)

1)

Annual electricity consumption

1)

Daily electricity consumption

2)

Thermostat temperature settings

Value of “smart”

Volume

Quantity of mixed water at 40 °С

V40

2)

Sound power level indoors

Water details

Working pressure

[%)

[kWh]

[kWh]

[l]

[l] db(A)

[MPa

(bar)] kg kg

Net Weight (empty)

Weight when full

Anti-corrosion of tank

Water connections

Electrical characteristics

Power of electrical heater

Number and power of heating elements

Voltage

Pol.

[W]

[W]

VAC

Protection class

Type of protection

Heating time at 230V from 10 °C to 65 °C

Heating time at 400V from 10 °C to 65 °C

Table 4 Technical characteristics

1) EU Regulation 812/2013; EN 50440

2) EN 50440

S

B

33,5

550

2,626

0

29,1

-

15

19

49

4200

6 x -700

1/N/PE 230V~; 50Hz

3/N/PE 400V~; 50Hz

I

IP 24

0 h 59 m 1 h 38 m 2 h 37 m 3 h 16 m 3 h 55 m

0 h 59 m

M

C

37,2

1382

6,425

0

48,3

66

15

28

78

1 h 38 m

M

C

36,9

1393

6,490

0

78,0

116

15

34

114

12,410

1,0 (10)

L

C

38,1

2687

0

97,3

137

15

39

139 enamelled & Mg Anode

2 h 37 m

60 °C

G3/4

6000

6 x -1000

3 h 16 m

TR4500

120

L

C

37,4

2739

12,715

0

118,1

172

15

44

164

3 h 55 m

TR4500

150

XL

C

38,1

4399

20,322

0

147,1

225

15

50

200

4 h 54m

4 h 54m

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Technical Characteristics and dimensions

2.7

Dimensions

Fig. 2

Appliance

30...

50...

80...

100...

120...

150...

Table 5

Dimensions in mm (Vertical installation on a wall)

A

510

610

830

975

1130

1345

B

310

400

600

750

900

1100

C

235

240

260

255

260

275

D

70

100

100

100

100

100

E

110

100

100

100

100

100

F

180

260

360

510

510

510

G

420

500

500

500

500

500

8 Tronic – 6 720 884 457 (2018/02)

2.8

Electrical wiring diagram

CAUTION: Electric shock!

▶ Before any intervention into the interior of the water heater, disconnect it from the power supply network! This intervention may only be performed by a trained professional!

Technical Characteristics and dimensions

Fig. 3 Electric circuit diagram (30L heater)

[1] Connection terminal

[2] Electronic regulator

[3] Relay

[4] Thermal cut-out

[5] Electric heating elements (6x700W)

[L1] Live conductor

[L2] Live conductor

[L3] Live conductor

[N] Neutral conductor

[PE] Earthing conductor

Fig. 4 Electric circuit diagram (50L - 150L heaters)

[1] Connection terminal

[2] Electronic regulator

[3] Relay

[4] Thermal cut-out

[5] Electric heating elements (6x1000W)

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[L1] Live conductor

[L2] Live conductor

[L3] Live conductor

[N] Neutral conductor

[PE] Earthing conductor

9

Regulations

3 Regulations

The country’s regulations currently in force must be fulfilled for the installation of the electric appliances.

4 Transport

▶ Do not drop the appliance.

▶ Remove the appliance from the packaging only at the place of installation.

4.1

Transport, storage and recycling regulations

• The equipment should be stored in protected areas against negative temperatures.

• Whenever applicable, the EU 2002/96/EC directive imposed and the differentiated collection / gathering of used electrical and electronic equipment.

5 Installation

Installation, power connection and commissioning must only be carried out by a service approved for such work by the local entities.

5.1

Important notes

The water heater shall be installed as close as possible to the outlets. When installing the water heater in a room with a bathtub or shower, take into account the requirements defined in IEC Standard 60364-7-701 (VDE 0100, Part 701).

It has to be fitted to the wall using appropriate wall screws with a minimum diameter of 8 mm. A wall with a poor load-bearing capacity must be properly reinforced where the heater will be installed. The water heater may only be fixed upon the wall vertically.

To facilitate future service interventions, you are advised to install the heater in accordance with the installation measurements.

CAUTION:

▶ Do not drop the appliance.

▶ Remove the appliance from the packaging only at the place of installation.

▶ Wherever applicable, comply with the

IEC 60364-7-701 norm on installing the appliance and / or any electric accessories.

▶ Chose a sufficiently robust wall to support the appliance with the tank full

(  see tab. 5).

CAUTION: Damage to the heating elements!

▶ Firstly connect all the water connections and fill the appliance.

▶ Connect the appliance to the electric point, assuring connection to earth.

5.2

Siting the appliance

CAUTION:

▶ Chose a sufficiently robust wall to support the appliance with the tank full

(  Tab. 4).

Dispositions relative to the place of installation

• Comply with country-specific requirements

• Never install the appliance above a heat source.

• Never install the appliance in rooms where the ambient temperature can fall below 0 °C.

• Install the appliance near the most frequently used drawoff point to keep energy losses and waiting times to a minimum.

• Install the appliance in a room that permits the replacement of the magnesium anode, and necessary maintenance procedures.

Protection areas 1 and2

▶ Do not install in protection areas 1 and 2.

▶ Install the appliance outside the protection areas at a distance greater than 60 cm, of the bath.

CAUTION:

▶ Make sure that the appliance is connected to the DB board (electrical board) with a connection to the earth cable.

10 Tronic – 6 720 884 457 (2018/02)

Installation

60 cm

60 cm NOTICE: Material damage!

▶ Install a filter at the water inlet in areas where the water contains particles or sediments.

2 1 1 2

6 720 612 659-13.3TT

Fig. 5 Protection areas

5.3

Wall mounting

CAUTION: Appliance fall!

▶ Use sleeves and hooks (according with the type of wall) to fix the bracket that can hold the appliance with the tank full.

Vertical installation

It is recommended:

▶ to purge the system before appliance installation, the existence of sand can cause a reduction in flow or even cause a total obstruction.

The water heater connections for the inlet and outlet of water are colour-coded. The inlet of cold water is marked with blue colour, while the hot water outlet is marked with red colour.

The water heater can be connected to the water supply in two ways. The closed-circuit pressure system enables several points of use, while the open-circuit gravity system enables a single point of use only. The mixer taps must also be installed in accordance with the selected installation mode.

▶ Identify the piping for hot and cold water, in order to avoid a possible swop (Fig. 7).

Fig. 6 Vertical installation

5.4

Water connection

CAUTION: Damage to appliance connections through contact corrosion!

▶ Use galvanized insulators in your water connections. These will avoid galvanic electric currents between the hydraulic link metals and, consequently corrosion of these.

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Fig. 7

[1] Cold water inlet (right hand side)

[2] Hot water outlet (left hand side)

In a closed, pressurized system (  Fig. 8) pressurised mix taps should be used at the outlet points. To ensure safe operation of the heater a safety valve should be installed on the inlet pipe to prevent elevation of pressure for more than 0.1

MPa (1 bar) above the nominal pressure. The outlet opening on the safety valve must be equipped with an outlet for atmospheric pressure. The heating of water in the heater causes the pressure in the tank to increase to the level set by the safety valve. As the water cannot return to the water supply system, this can result in dripping from the outlet of the safety valve. The drip can be piped to the drain by installing a catching unit just below the safety valve. The drain installed below the

11

Installation safety valve outlet must be piped down vertically and placed in an environment that is free from the onset of freezing conditions.

To avoid water dripping from the safety valve, an expansion tank should be installed on the inlet pipe of the heater with the capacity of at least 5% of the heater volume.

To ensure proper operation of the safety valve, periodical inspections must be carried out to remove limescale and make sure the safety valve is not blocked. To check the valve, open the outlet of the safety valve by turning the handle or unscrewing the nut of the valve (depending on the type of the valve). The valve is operating properly if the water comes out of the nozzle when the outlet is open.

An open-circuit, non-pressurised system (Fig. 9) requires the installation of a non-return valve at the water inlet to prevent water draining out from the tank in the event of the water supply running dry. This installation mode requires the use of an instantaneous mixing tap.

As the heating of water expands its volume, this causes the tap to drip. The dripping cannot be stopped by tightening it further; on the contrary, the tightening can only damage the tap.

▶ Use the appropriate connection accessories to do the hydraulic connection to the appliance.

Fig. 9 Open (non-pressure) system

[7] Test valve

[8] Non-return valve

[9] Low pressure mixer tap

[H] Cold water

[T] Hot water

No closing valve may be built-in between the water heater and return safety valve, because with it the pressure protection would be impeded!

The heater can be connected to the domestic water supply network without a pressure-reducing valve if the pressure in the network is lower than the nominal pressure. If the pressure in the network exceeds the nominal pressure, a pressurereducing valve must be installed.

In the case of freezing:

▶ Switch off the appliance.

▶ Purge the appliance (  Chapter 6.5).

Safety valve

DANGER:

▶ Install a safety valve at the water inlet of the appliance (Fig. 8).

Fig. 8 Closed (pressure) system

[1] Pressure mixer taps

[2] Expansion tank

[3] Safety valve

[a] Test valve

[b] Non-return valve

[4] Funnel with outlet connection

[5] Checking fitting

[6] Pressure reduction valve

[7] Test valve

[H] Cold water

[T] Hot water

NOTICE:

NEVER OBSTRUCT THE PURGE OUTLET OF

THE SAFETY VALVE.

Never install any accessory between the safety valve and the cold-water inlet (right hands side) of the appliance.

12 Tronic – 6 720 884 457 (2018/02)

If the pressure at the cold water inlet is superior to that of 80% of the maximum pressure of the appliance at, ie: 6,4 bar:

▶ Install a reducing valve (Fig. 8).

The safety valve will trigger every time the water pressure in the appliance exceeds 6,4 bar. A facility for draining the expelled water must be provided.

5.5

Electrical connections

DANGER:

By electrical discharge!

▶ Before working on the electrical components, firstly cut the power,

(fuse, circuit breaker or other).

All adjusting devices, verification and safety mechanisms were submitted to a rigorous test in factory and are ready to work.

CAUTION:

Electrical protection!

▶ The appliance should dispose of an independent connection to the DB board (electric board), protected by a

30 mA differential circuit breaker and earthing.

Fig. 10 Removing the protective cover

The electrical connection must be realized in accordance with the current country laws regarding electrical installations.

Before connecting to the power supply network,

▶ Install a power supply cord in the water heater, with a min. diameter of 1.5 mm2 (H05VV-F 5G 1.5 mm2). To do this, the protective plate must be removed from the water heater.

In the electrical installation, please install a disconnect switch to separate all poles from the power supply network in accordance with the national regulations.

Installation

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Installation

5.6

Start-up

Before connecting it to the power supply, the water heater must be filled with water.

When filling the heater for the first time, the tap for the hot water on the mixing tap must be opened. When the heater is filled with water, the water starts to run through the outlet pipe of the mixing tap.

Before start-up,

▶ Verify that the appliance has been correctly installed and assembled.

▶ Open the water inlet valves.

▶ Open all the hot water taps in order to ensure all the air is out of the connections.

▶ Control the tightness of all the connections and ensure that the appliance fills to its full capacity.

▶ Connect the appliance to the electric current.

▶ Inform the customer of any user information of the appliance and handling.

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Use

6 Use

After it has been connected to the water and power supply grid, the heater is ready to be used. When connected to the power supply, the heater runs in standby mode. In the standby mode, the heater maintains the water temperature of 10 °C.

Fig. 11 User interface

[1] Display of the set/actual temperature of water in the heater, signalisation of errors

[2] On/Off button, temperature setting

[3] "BOOST" mode indicator

[4] On/Off button for the "BOOST" mode

CAUTION: The first start-up of the appliance must be carried out by an authorized technician, which will provide the user with all the necessary information to the best working and handling of the device.

6.1

Turning the appliance on/off

Turn on

▶ Hold the button (fig. 11, [2]) for about 3 seconds.

Standby

▶ Hold the button (fig. 11, [2]) for about 3 seconds, the heater goes into standby.

Turn off

▶ Unplug the appliance.

6.2

Operating the heater – manual setting

To set the temperature,

▶ Press button (fig. 11, [2]) until you get the desired temperature level (preset temperature level is 57 °C).

Symbol Description

Freeze protection, temperature about 10 °C

Water temperature about 35 °C

Water temperature about 57 °C

Water temperature about 75 °C

Table 6 Control panel symbols

Once the maximum level ,

▶ Press the button (fig. 11, [2]).

The temperature returns to the first setting .

We recommend the setting. This setting is the most energy-efficient. The temperature of water is about 57 °C, while limescale production and heat loss will be smaller than in case of higher temperature settings.

The temperature of water in the heater is indicated on the display (fig. 11, [1]).

If the heater will not be used for a longer period of time, please protect its contents from freezing by setting the temperature to the position. At this setting, the heater will maintain the temperature of water at about 10 °C.

6.3

Operation of the heater in the "BOOST" mode

This mode is useful when you need a large quantity of hot water immediately. In the " BOOST " mode the heater uses the main heating elements as well as auxiliary heating elements to heat water quickly.

You can choose between one-time or constant activation of the

" BOOST " mode.

For one-time activation,

▶ Press button [4] shortly.

The heater’s operation in the " BOOST " mode is indicated by control light [3], which remains on until the water in the heater is heated to the set temperature.

For constant operation of the " BOOST " mode,

▶ Hold button [4] for 3 seconds.

The heater’s operation in the " BOOST " mode is indicated by control light [3]. The " BOOST " mode can be turned off by pressing button [4].

6.4

The Anti-Legionella Function

If the water in the heater does not reach 65 °C for 14 consecutive days, the anti-legionella function heats the water to 70 °C and maintains this temperature for 120 minutes.

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Environment / disposal

6.5

Emptying the appliance

▶ Unplug the appliance from the power supply.

DANGER: Burn risk!

Open a hot water tap to and verify the temperature of the water in the appliance before opening the safety valve.

▶ Wait until the water temperature decreases in order to avoid burns or any other damage.

▶ Switch off the water cutting valve and open a hot water tap.

▶ Open the safety valve (Fig. 12).

▶ Wait until the appliance is completely empty.

7 Environment / disposal

Environmental protection is a fundamental corporate strategy of the Bosch Group.

The quality of our products, their efficiency and environmental safety are all of equal importance to us and all environmental protection legislation and regulations are strictly observed.

We use the best possible technology and materials for protecting the environment taking into account of economic considerations.

Packaging

We participate in the recycling programmes of the countries in which our products are sold to ensure optimum recycling.

All of our packaging materials are environmentally friendly and can be recycled.

Old electrical and electronic appliances

Electrical or electronic devices that are no longer serviceable must be collected separately and sent for environmentally compatible recycling (in accordance with the

European Waste Electrical and Electronic

Equipment Directive).

To dispose of old electrical or electronic devices, you should use the return and collection systems put in place in the country concerned.

6720643873-06.1V

Fig. 12 Manual activation of the safety valve

Refill the appliance

When refilling the heater with water it is recommended to open the warm water tap on the mixing tap and let the water run for at least two minutes through the outlet pipe (the water stream should be steady, medium strength, about as thick as a pencil).

16 Tronic – 6 720 884 457 (2018/02)

Inspection/Maintenance

8 Inspection/Maintenance

Maintenance must only be carried out by an authorized technician.

8.1

User information

WARNING:

Water leakage!

▶ Turn off all electric current.

▶ Turn off the water cut off valve

(  Fig. 8).

8.1.1 Cleaning

▶ Never use abrasive, corrosive or solvent cleaning detergents.

▶ Use a soft cloth and mild detergent intended for cleaning smooth varnished surfaces.

8.1.2 Safety valve verification

▶ Verify that the water is expelled during the heating process through the safety purge valve.

▶ Never obstruct the safety purge valve outlet.

8.1.3 Safety valve

▶ Manually open the safety valve at least once a month (Fig.

12).

WARNING:

▶ Ensure the purging of the water does not cause any damage to persons or goods.

8.1.4 Maintenance and repair

▶ It is the responsibility of the client to regularly call out technical assistance or an authorized technician to perform periodic maintenance.

8.2

Periodic maintenance work

WARNING:

Do not attempt to fix any defects of the heater by yourself:

▶ Call the nearest authorised service company.

WARNING:

Before carrying out any maintenance work:

▶ Turn off all electric current.

▶ Turn off the water cut off valve

(  Fig. 8).

With regular service inspections you will ensure faultless functioning and long life of the heater.

1. Tank corrosion warranty applies only if all the prescribed regular inspections of the protective anode wear have been made.

2. The period between regular inspections should not be longer than stated in the terms and conditions.

3. Inspections should be carried out by authorised service providers that will record each inspection on the warranty statement of the product.

4. Upon inspection the service provider will inspect the amount of wear on the anti-corrosion anode and, if necessary, clean the limescale that accumulates depending on the quality, quantity and temperature of the water inside the heater.

5. The service provider will also recommend the date for the next inspection depending on the condition of the heater.

6. With regular service inspections you will ensure faultless functioning and long life of the heater.

▶ Only make use of genuine replacement parts.

▶ Order the replacement parts in accordance with the parts catalogue for the appliance.

▶ When carrying out maintenance work change the disassembled joints and replace these with new ones.

8.2.1 Functionality verification

▶ Verify the good working order of all the elements.

CAUTION: Damages to the glass enamel!

Never clean the enamel interior of the appliance with decalcifying agents. The magnesium anode ensures anti corrosion protection. There is no need for alternative products for the protection of the enamel.

8.2.2 Magnesium Anode

This appliance disposes of an anti-corrosion magnesium anode in the inside.

Tronic – 6 720 884 457 (2018/02) 17

Inspection/Maintenance

WARNING:

It is forbidden to operate the appliance without an installed magnesium anode.

WARNING:

The magnesium anode needs to be tested every second year and replaced if necessary, failing to do so will result in the termination of the warranty. The appliance without this type of protection will not be covered by the manufactures warranty.

▶ Switch off the circuit breaker feeding the appliance.

▶ Before starting, verify that the appliance is disconnected from the electric current.

▶ Completely drain the appliance (  section 6.5).

▶ Remove the lid of the appliance, by unscrewing the fixing screws.

▶ Unscrew the flange fastening nut.

▶ Disconnect the connecting cables to the thermostat [1].

▶ Remove the flange [2].

▶ Verify the magnesium anode and replace it if necessary.

3

8.2.3 Periodic cleaning

DANGER: Burn risk!

During the periodic cleaning process the hot water may cause serious burns.

▶ Carry out this operation outside working hours.

▶ Turn off all hot water taps.

▶ Inform all residents of the danger of burns.

▶ Position the thermostat on the maximum position ( 

Fig. 11).

▶ Wait until the indicator turns off.

▶ Open all the hot water taps, starting with the nearest one to the furthest one from the appliance, and purge all the hot water from inside the appliance, at least 3 minutes.

▶ Turn off all the hot water taps, and position the thermostat on the normal working position.

8.2.4 Long standing - non working (more than 3 months)

After a long period of inactivity you should change the water inside the appliance (more than 3 months).

▶ Switch off the electric current to the appliance.

▶ Drain the appliance completely.

▶ Fill the appliance until the water comes out from all the hot water taps.

▶ Turn on the appliance to the electric current.

8.3

Required actions after any maintenance work has been carried out

▶ Refasten and check the fastness of all the water connections.

▶ Turn on the appliance.

2

1

672087523-07.1V

Fig. 13 Access and identifying internal components

[1] Fastening screw

[2] Flange

[3] Magnesium anode

18 Tronic – 6 720 884 457 (2018/02)

Problems

9 Problems

9.1

Indication of errors

DANGER:

Assembly, maintenance and repairs should only be carried out by authorized technicians.

Error Error description

E1 Temperature sensor error

E5 Overheating

(temperature > 90 °C)

E44 Dry start

In case of error, control lights start to flash on the display

(  fig. 11[1]).

In the following diagram there are some solutions described for possible problems / errors.

Signalization Solution

Repeated 2x quick pulse of the control light on the display (  fig. 11, [1]).

Repeated 3x quick pulse of the control light on the display (  fig. 11, [1]).

Repeated 4x quick pulse of the control light on the display (  fig. 11, [1]).

▶ Call service (heater out of order).

The error is automatically deleted when the temperature drops below the set value.

Should the error repeat,

▶ Call the service company.

Fill the heater with water. The error is deleted by switching off the heater or by holding button (  11, [2]) for 3 seconds.

Table 7

Tronic – 6 720 884 457 (2018/02) 19

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