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Bosch Uni 3000 F Manual

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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
1)
(120
2)
)
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)
1) Gas quality as per Natural Gas I2H (G20)
In conjunction with a CFB 9xx control unit for modulating low-
temperature operation
No
demand
2)
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
No
demand
2)
50 60 - No demand
2)
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
1)
, table 3
1) Proportion of sulphur and sulphur compounds in the gas up to a maximum of
1500 mg/m
3
(approx. 0.1 % by volume)
Proportion of chlorine and chlorine compounds in the gas up to a maximum of
50 mg/m
3
Proportion of fluoride and fluoride compounds in the gas up to a maximum of
25 mg/m
3
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
… 5 …


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