Bedienungsanleitung Bosch Condens GC7000WP (Seite 12 von 52) (Englisch)

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Condens 7000 WP – 6721841195 (2022/01)

Installation

5.3 Water quality

Unsuitable or contaminated heating and tap water can lead to faults

in the boiler and can damage the heat exchanger or DHW supply

among other things due to sludge formation, corrosion or

calcification. Please get in touch with the manufacturer if you require

additional information on the water quality. You will find the relevant

addresses on the back of this document.

▶ Using the supplied “Water quality operator's log” determine the water

volume Vmax:

If the amount of fill and top-up water is already greater than the

calculated water volume Vmax:

▶ Use the water treatment as specified in the “Water quality operator's

log”.

If the amount of fill and top-up water is less than the calculated water

volume Vmax:

▶ Purge and clean the heating system if required.

▶ Only use untreated potable water.

▶ Do not use chemical additives (e.g. inhibitors or agents that increase

or reduce the pH), apart from as specified in § 5.3.1.

5.3.1 Water conditioning and treatment

NOTICE

Damage to appliance due to sealing agent in the heating water.

▶ Addition of sealing agent to the heating water is not permitted.

Conditioned water is water that has been softened or desalinated and to

which no chemicals have been added. Treated water is unconditioned or

conditioned water to which chemicals have been added.

The following water conditioning and water treatment measures have

been approved for use by Bosch:

Table 5 Additives

▶ For information on concentrations and applications, contact the

supplier of the additive.

5.4 Maximum flow temperature

NOTICE

Too much chloride in the heating water can damage the appliance.

If the chloride content in the heating water exceeds 150 ppm, the

boiler may be damaged if the heating water temperature is higher than

80 °C. If the maximum flow temperature is set higher than 80 °C, the

water treatment must be adapted in order to reduce the chloride

content.

▶ If the chloride content is more than 150 ppm, carry out a water

treatment as described in the supplied "Manual for water quality".

The boiler is supplied with a set maximum flow temperature of 80 °C as

standard. Under standard conditions, this maximum boiler temperature

is sufficient to cover the heating load and also guarantee the service

life of the boiler.

A higher maximum flow temperature may however be required for

certain installations. In these cases, the chloride content of the heating

water must be checked and reduced if necessary.

▶ With the chloride content of the heating water.

▶ If the chloride content is more than 150 ppm, perform water

treatment as described in the supplied "Manual for water quality".

▶ Set the maximum flow temperature to the required value ( § 9.4.2,

p. 26).

▶ Contact the manufacturer for more information. You will find the

relevant addresses on the back of this document.

6 Installation

WARNING

Risk of explosion

▶ Close the gas valve before working on gas-carrying components.

▶ After completing the work, check the tightness of all gas-carrying

components.

6.1 Unpacking the boiler

The packaging material is fully recyclable.

▶ Dispose of the boiler packaging after installing the

boiler at a recycling point.

▶ Remove the outer packaging by setting the boiler upright and pulling

it up and off.

▶Avoid damaging the connections on the boiler at the top and

bottom.

▶Cover the flue outlet adapter of the boiler during assembly.

6.2 Checking the gas type

▶ Check whether the gas type to be connected to the appliance

corresponds to the gas type specified on the data plate. (§ 2.11,

p. 6 ).

6.3 Setting up the boiler The boiler can be

installed in two ways:

• Installation on a frame (accessory).

• Installation on the wall.

To make full use of the modular design of the system, it is advisable to

install the boiler in combination with the frame.

Installation on the frame (accessory)

WARNING

Physical injury due to tipping of the boiler.

The frame must be securely attached to the floor or wall so that the boiler

cannot tip over.

▶ Use fixing materials that are suitable for the subsurface or wall and

offer a sufficient hold.

▶ Fasten the frame to the floor with the bracket (included).

▶ If drilling in the floor is not permitted fasten the frame to the wall.

▶ Mount the cross bars [1] to the stands [2].

▶ Secure the cross bars with the brackets [3] (included).

▶ Place the frame at the required location in the installation room.

Application Product name Max.

concentration

[%]

Demineralisation Demineralisation/

desalination with mixed

bed cartridges

In accordance with

the supplied

"Manual for water

quality"

Inhibitor/antifreeze Fernox Alphi 11 40

Antifreeze Noburst AL 40

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