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Table Of Contents; Technical Characteristics And Dimensions; General Description; Explanation Of Model Code - Bosch W11B Installation And Operating Instructions Manual

Gas instantaneous water heater
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1.
1. 1 General Description ......................................................... 2
1.2 Explanation of Model Code ............................................ 2
1.3 Accessories ........................................................................ 2
1.4 Dimensions ......................................................................... 3
1.5 Appliance design ............................................................... 3
1.6 Circuit diagram .................................................................. 4
1.7 Technical characteristics ................................................. 4
2.
2.1 Regulations ......................................................................... 5
2.2 Location .............................................................................. 5
2.3 Fixing the appliance .......................................................... 5
2.4 Water connection ............................................................. 5
1.

Technical Characteristics and Dimensions

1. 1

General Description

The appliance is easy to operate as it is ready to use at the
press of a button.
Guaranteed safety provided by:
- Gas-tight ionisation detector that prevents escape of gas
if there is no flame.
- Flue gas safety device that switches off the appliance if
the flue is not functioning properly.
- Temperature limiter which protects the heat exchanger
against overheating.
Electronic ignition controlled by opening of water valve.
Absence of a permanent pilot flame make it more
economical than conventional appliances.
Semi-permanent pilot flame functions only during the time
between opening of the water valve and activation of the
main burner.
Heat exchanger has no tin/lead lining.
Automatic water valve made of glass-fibre reinforced
polyamide, 100% recyclable.
Automatic control of water flow maintains constant flow rate
even with fluctuating supply pressure.
Green LED indicates burner condition.
2
Contents
2.5 Gas connection ................................................................. 5
2.6 Flue ....................................................................................... 5
2.7 Commissioning .................................................................. 5
3.
3.1 Function .............................................................................. 6
3.2 Water temperature control .............................................. 6
3.3 Appliance adjustments ..................................................... 6
3.4 Maintenance ...................................................................... 6
3.5 Flue gas safety device ..................................................... 6
3.6 Converting to a different gas type ................................ 6
3.7 Troubleshooting ................................................................. 7
4.
Operation .................................................................................. 8
1.2

Explanation of Model Code

23
W
11
B
31
23
W
14
B
31
23
W
18
B
31
W Gas instantaneous water heater
11 Flow rate (l/min)
B Electronic ignition powered by 1.5 V batteries
23 Natural gas type H
31 LPG (butane/propane)
S... Country code
1.3
Accessories (Included with Appliance)
- Sleeves and hooks for wall-mounting.
- Set of two batteries, 1.5 V type R
S...
S...
S...
6 720 607 527

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This manual is also suitable for:

W14bW18b