Bosch W11P, W14P, W18P User Manual

4 (1)

Installation and Operating Instructions

Gas Instantaneous Water Heater

W11..P...

W14..P...

W18..P...

With piezo ignition and double safety system consisting of flue gas monitor and heat exchanger temperature sensor.

6 607720 ZA526 .(05 JS02)

Safety instructions:

If you smell gas:

-Do not operate any electrical switches.

-Do not telephone from inside the danger area.

-Turn off the gas cock.

-Open windows and ventilate room.

-From outside, call the gas company and your approved installer.

Do not use or store easily combustible materials in the vicinity of the appliance.

Installation and servicing of the appliance may only be carried out by an approved technician.

The appliance should be regularly serviced in order to ensure that it remains in perfect and safe working order.

If there is a risk of freezing, the appliance must be switched off and drained. If the appliance has not been drained during a cold spell, when it is switched on again check that it produces hot water. If problems occur, contact your installer.

Index

 

 

page

 

 

page

1.

Technical Characteristics and Dimensions

............... 2

2.5

Gas connection .................................................................

5

1.1

General description

2

2.6

Flue .......................................................................................

5

2.7

Comissioning ......................................................................

5

1.2

Explanation of model code ..............................................

2

 

 

 

1.3

Accessories ........................................................................

2

3.

Operation and maintenance .............................................

6

1.4

Dimensions .........................................................................

3

 

 

 

1.5

Appliance design ...............................................................

3

3.1

Function ..............................................................................

6

1.6

Technical characteristics .................................................

4

3.2

Water temperature control ..............................................

6

2.

Preconditions for installation

5

3.3

Appliance adjustments .....................................................

6

3.4

Maintenance ......................................................................

6

2.1

Regulations

5

3.5

Flue gas safety device .....................................................

6

3.6

Converting to a different gas type ................................

6

2.2

Location ..............................................................................

5

3.7

Troubleshooting .................................................................

7

2.3

Fixing the appliance ..........................................................

5

 

 

 

2.4

Water connection .............................................................

5

4.

Operation ..................................................................................

8

1.Technical Characteristics and Dimensions

1.1General Description

This water heater is fitted with a piezo system. 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.

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.

Gas valve with adjustable output via a slide control.

1.2Explanation of Model Code

W

11

P

23

S…

31

 

 

 

 

W

14

P

23

S…

31

 

 

 

 

W

18

P

23

S…

31

 

 

 

 

W Gas instantaneous water heater 11 Flow rate (l/min)

P Piezo ignition

23 Natural gas type H

31 LPG (butane/propane) S... Country code

1.3 Accessories (Included with Appliance)

- Sleeves and hooks for wall-mounting

2

6 720 607 526

Bosch W11P, W14P, W18P User Manual

1.4 Dimensions

1. Front cover

2. Hole for fixing to wall

3. Observation window

4. Temperature control

5. Output control

6. Gas connection

7. Exhaust pipe union

8. Draught diverter with flue gas monitor

9. Heat exchanger

10. Automatic gas valve

11. Piezo

12. Water valve

Fig. 2

Dimensions

A

B

C

D

E

F

G

H (Ø)

 

(mm)

 

 

 

 

 

 

 

Natural Gas

 

LPG

W11..P...

310

580

228

112,5

463

60

25

 

 

 

W14..P...

350

655

228

132,5

510

95

30

1/2"

 

W18..P...

425

655

334

132,5

540

65

30

 

 

 

1.5Appliance design

1.

Heat exchanger

2.

Main burner

3.

Injector

4.

Slow ignition valve

5.

Temperature control

6.

Venturi

7.

Water valve

8.

Water throttle

9.

Water filter

10.

Membrane

11.

Cold water pipe

12.

Magnetic valve

13.

Gas supply pipe

14.

Gas filter

15.

Regulating screw

16.

Pilot filter

17.

Piezo

18.

Hot water pipe

19.

Output control

20.

Igniter button

21.

Main gas valve

22.

Gas valve for pilot burner

23.

Pilot burner injector

24.

Gas valve

25.

Jet pressure testing point

26.

Thermocouple

27.

Igniter electrode

28.

Temperature limiter

29.

Flue gas safety device

Fig. 3

 

6 720 607 526

3

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