Bedienungsanleitung Bosch Uni 3000 F (Seite 5 von 40) (Englisch)

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Product information | 5

6 720 812 900 (2014/10)Uni 3000 F

2.4 Gas supply

The gas supply must be installed and maintained by a Gas Safe

registered installer with the necessary experience and ACS elements to

complete the work.

▶ Please note that, depending on the region, approvals for the flue

system and condensate connection to the public sewage system may

be required. Before starting installation, notify the responsible

agencies as specified by local regulations.

2.5 EU Declaration of Conformity

The design and operation of this product conform to the applicable

European directives and, when necessary, supplementary national

requirements. Conformity has been demonstrated.

You can ask for a copy of the declaration of conformity for this product.

For this see the contact address on the back cover of these instructions.

2.6 Type overview

2.7 Operating conditions

The control unit settings in Chapter 4.9 must be observed!

2.8 Overview of possible fuels

▶ Enter the fuel used in the operating instructions, Chapter 10.

2.9 Heating water quality

The quality of the fill and top-up water is an essential factor for increased

efficiency, functional reliability, long service life and for maintaining the

constant operational condition of a heating system. If the system is filled

with water that has a high calcium hardness, this will be deposited on the

heat exchanger surfaces and will restrict the transfer of heat to the

heating water. As a result, the wall temperatures of the heat exchanger

surfaces will rise and the thermal stresses (loads on the boiler body) will

increase.

This is why the quality of the fill or top-up water must meet the conditions

stipulated in the operator's log provided and be recorded in this log.

The conditions for boilers > 600 kW require general water treatment

independent of the water hardness and the volume of fill and top-up

water.

Type Output

Uni 3000 F 420 kW to 1850 kW

Table 2 Type overview

Observe all standards and guidelines applicable to the

installation of this system in your country!

Ensure compliance with the information on the data

plate. These are definitive and must be observed.

Operating conditions and time constants

Maximum permissible temperature, high-

limit safety cut-out

°C 110

(120

)

1) High limit safety cut-out setting if the boiler is operated to heat DHW.

2) You may also operate the boiler as a hot water boiler with a high limit safety cut-

out set to 120 °C. In this case, contact your supplier. Hot water boilers with a

maximum temperature in excess of 110 °C are covered by the Pressure

Equipment Directive 97/23/EC. If boilers are to be operated at temperatures

above 110 °C they must have the necessary equipment level and be operated in

accordance with BG01.

Maximum operating pressure bar 6

Temperature control unit s 40

Monitor/limiter s 40

Table 3 Operating conditions and time constants

Prevent load peaks in excess of the stated boiler output.

On average, the burner may not be started more than

four times per hour (relative to the actual hours run by

the burner).

Boiler operating conditions

Minimum

flow rate

Minimum return

temperature in °C

Minimum

boiler output

at the 1st

stage (base-

load output)

when not in

use

with oil

as fuel

with gas

as fuel

1) Gas quality as per Natural Gas I2H (G20)

In conjunction with a CFB 9xx control unit for modulating low-

temperature operation

demand

2) If it has been ensured that the return temperature sensor FV/FZ is always

covered by water from the boiler circuit.

50 60 - No

requirements

The boiler is

shut down

automatically

by the 4000

control unit

In conjunction with a CFB 9xx control unit for constant boiler

temperatures, e. g. CFB 810 with CME 930 module or with

additional external control

demand

50 60 - No demand

Table 4 Operating conditions

Fuels

28-second oil

(Kerosene)

35-second oil

(Gas Oil)

LPG 3P

(G31)

Natural Gas I2H

(G20)

Combustion of

biogas/waste

gas (quality in

line with DVGW

G262

, table 3

1) Proportion of sulphur and sulphur compounds in the gas up to a maximum of

1500 mg/m

(approx. 0.1 % by volume)

Proportion of chlorine and chlorine compounds in the gas up to a maximum of

50 mg/m

Proportion of fluoride and fluoride compounds in the gas up to a maximum of

25 mg/m

Comment: The boiler must only be operated with the specified fuels.

Select a burner intended for the indicated fuels.

Bosch Commercial and Industrial Heating can provide a burner

matching service, in addition to supplying a selection of burners.

Table 5 Fuels

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