Bosch WR 11 B - 2 Technical Characteristics and Dimensions; Declaration of Conformity with Relevant; EEC Regulations; Explanation of Model Code

6720648592 (2014/05)
Technical Characteristics and Dimensions | 5
2 Technical Characteristics and Dimensions
2.1 Declaration of conformity with relevant EEC
regulations
This appliance fullls European directive requirements 2009/
142/EC, 2006/95/EC, 2004/108/EC and corresponds to the
specications described in the corresponding EEC certicate
of proof.
2.2 Explanation of Model Code
[W] Gas Water Heater
[R] Proportional power adjustment
[11] Capacity (l/min)
[B] Electronic ignition powered by 1.5 V batteries
[23] Indicator number of natural gas H
[31] Indicator number of LPG
[S...] Country code
The code number indicates the gas group according to EN 437:
2.3 Accessories (Included with Appliance)
• Gas water heater,
• Attachment elements,
• Installation accessories,
• Two 1.5 V batteries type R
• Heater docu
mentation.
2.4 Description of the heater
Operating convenience, as the heater is ready to operate by
simply pressing a switch.
• Heater for wall-mounting,
• Ignition by electronic device triggered when the water valve
opens,
• Great savings in comparison with conventional heaters,
due to the possibility of power adjustment and no
permanent pilot ame,
• Natural gas/LPG burner,
• Semi-permanent pilot burner which only functions during
the period between the opening of the water valve and the
ignition of the main burner,
• Heat exchanger in copper without tin/lead covering,
• Water valve in breglass-reinforced polyamide, 100%
recyclable,
• Automatic adjustment of the water ow by means of a
device which permits a constant ow to be maintained in
spite of
variable pressure supplies,
• Gas ow adjustment proportional to the water ow to
maintain a constant high temperature.
• Safety devices:
– Ionisation probe to check for accidental extinction of
the burner ame,
– Flue gas safety device which turns o the heater in case
of inadequate combusted gas evacuation conditions,
– Temperature limiter which prevents overheating of the
heat exchanger.
2.5 Type overview
The type plate is located at the bottom left of the appliance.
There you will nd details of appliance output, model number,
approval data and the serial number.
2.6 Special accessories
• Conversion kit from natural gas to butane/propane.
Model WR 11/14/18 B...
Category II
2H3+
Type Type B
Table 2
W R 11 B 23
31
S....
W R 14 B 23
31
S....
W R 18 B 23
31
S....
Table 3
Identication
Code
Wobbe Index (Ws)
(15 °C)
Gas type
23 12,7-15,2 kWh/m
3
Natural Gas - Group H
31 20,2-21,3 kWh/m
3
LPG - Group B/P
Table 4