Bedienungsanleitung Bosch Uni Condens 8000 F (Seite 40 von 48) (Englisch)

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Safety equipment

Uni Condens 8000 F – 6720867056 (2016/10)

13.2 Safety equipment in accordance with the EC-type

examination

The following pieces of equipment are components of the EC-type

examination. We therefore recommend that you purchase safety

equipment with the boiler.

The following safety equipment is included in the type examination of the

boiler:

Table 17 Approval designations of additional safety equipment in

accordance with BS EN 12828:2012

13.3 Requirements for alternative items of safety

equipment and other pieces of equipment

13.3.1 Safety valve requirements

• The safety valve must be suitable for discharging domestic hot water

(e.g. via type-tested devices in accordance with TÜV.SV...DG/H, or if

applicable in accordance with BS 6644 or BS5410 part 2.

• The pipework between the boiler and the safety valve must be

unrestricted. The pressure drop in the pipework between the boiler

and the safety valve must be kept to a minimum.

• The safety valve must be able to safely discharge the rated output

during a full load with the anticipated overpressure.

• The pressure drop of the discharge pipe must not exceed the nominal

pressure of the safety valve by more than 10 %.

• The pressure relief valve must be installed accessibly on the heat

source or within close range in the flow pipe, without any barriers

between the heat source and the pressure relief valve.

If using different safety equipment to the type shown in tab. 17,

page 40, the following information must be observed without fail as

otherwise the type examination qualification of the boiler will be

invalidated.

13.3.2 High limit safety cut-out requirements

• Devices which are suitable for responding must be used

(e.g. type-tested devices with the identification TÜV.STB ID... or

devices according to EN 60730-2-9 (device type 2) or EN 14597).

• To adjust the higher limit safety cut-out, observe the instructions in

chapter 7.1, page 25.

• Limiters with a time delay are not to be installed.

• The limiter is generally installed with the sensor set in the designated

socket branch with a sensor pocket. The installation situation for

other appliances is yet to be established. The sensor pocket is

screwed in ex works.

13.3.3 Maximum pressure limiter requirements

• Devices which are suitable for responding under increasing pressure

must be installed (e.g. type-tested devices with the TÜV.SDB...S... ID).

• Observe information in chapter 8.4.1, page 33.

• Limiters with a time delay are not to be installed.

• The limiter sits on the boiler safety assembly, possible connection

with G ½".

13.3.4 Water level limiter as low water indicator requirements

• Devices which are suitable for responding with a lack of water

must be installed (e.g. type-tested devices with the TÜV.HWB...

or TÜV.WB... ID).

• The low water indicator is installed on the boiler;

possible connection G 2".

13.3.5 Burner requirements

• Oil burner certified in accordance with EN 267.

• Gas burner certified in accordance with EN 676.

• Please observe EMC and Low Voltage Directives, and other relevant

European guidelines.

• Observe information in chapter 4.2, page 13.

13.3.6 Boiler controller

▶ Comply with EMC and Low Voltage Directive.

▶ Observe information in chapter 7.1, page 25.

13.4 Connection of the boiler

Information and examples of the boiler connection can be found in the

technical guide.

13.5 Dirt traps

Deposits in the heating system can lead to local overheating, noise and

corrosion. Any resulting boiler damage falls outside the warranty

obligations.

To remove dirt and sludge deposits, flush the heating system thoroughly

before connecting a boiler to an existing system. In addition, we

recommend the installation of dirt traps or a sediment separator.

Dirt traps retain contaminants and thereby prevent faults in control

devices, pipework and boilers. Dirt traps must be installed near the

lowest point of the heating system in an easily accessible position. Clean

the dirt traps every time the heating system is serviced.

Safety component Make Verification of

suitability

Minimum pressure

limiter as low water

indicator

Sauter DSL 143 F001 TÜV ID …6022

Maximum pressure

limiter

Sauter DSH 143 F001 TÜV ID …6023

High limit safety cut-

out

Sauter: TUC 407

F001

TÜV ID: 0000046121

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