Bosch Appliances W11P Water Heater User Manual


 
4 6 720 607 526
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 control at minimum setting
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
Output and heat
demand
Gas supply
specifications *
Water system specifications
Flue
specifications
***