Bosch W11P User Manual

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1.6

Technical characteristics

*

H

i

 15°C - 1013 mbar - dry :

Natural gas

34.2 MJ/m

3

 (9.5 kWh/m

3

)

LPG: Butane 45.7 MJ/kg (12.7 kWh/kg)

Propane 46.4 MJ/kg (12.9 kWh/kg)

**

This figure must not be exceeded taking account of water expansion

***

At maximum rated heat output

Technical Data

Symbol

Unit

W11

W14

W18

Rated max. heat output

P

n

Btu/h

65570

80595

104165

Rated min. heat output

P

min

Btu/h

31420

40300

52082

Output (modulation range)

Btu/h

31420 - 65570 40300 - 80595 52082 - 104165

Rated max. heat input

Q

n

Btu/h

74450

92210

117825

Rated min. heat input

Q

min

Btu/h

36200

46105

58912

Supply pressure:

Natural gas 

mbar (kPa)

20 (2.0)

20 (2.0)

20 (2.0)

LPG (butane/propane) 

mbar (kPa)

28 (2.8)

28 (2.8)

28 (2.8)

Consumption:

Natural gas 

m

3

/h

2.2

2.77

3.5

LPG (butane/propane) 

kg/h

1.75

2.2

2.79

Number of injectors

12

14

18

Max. water pressure**

p

w

psi

170

170

170

Temperature control at maximum setting

Temperature increase

°C

50.0

50.0

50.0

Flow rate

l/min

5.5

7

8.8

Min. operating pressure

p

wmin

psi

2.0

2.0

3.0

Temperature increase

°C

25

25

25

Flow rate

l/min

11

14

17.6

Draught requirement

mbar

0.015

0.015

0.015

Flow rate

g/s

13

17

22

Temperature

°C

160

170

180

O

ut

pu

t a

nd

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ea

t 

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ns

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at

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 s

ys

te

m

 s

pe

ci

fic

at

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ns

Fl

ue

 

sp

ec

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ca

tio

ns

**

*