Bosch WR11 series - Technical Characteristics

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1.6 Technical characteristics
* H
i
15°C - 1013 mbar - dry : 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 WR8 WR11
Rated max. heat output
P
n
kW 11.8 19.2
Rated min. heat output
P
min
kW 7.0 7.0
Output (modulation range)
kW 7.0 - 11.8 7.0 - 19.2
Rated max. heat input
Q
n
kW 13.5 21.8
Rated min. heat input
Q
min
kW 8.1 8.1
Supply pressure
LPG (butane/propane)
G30/G31
mbar
28-30/37 28-30/37
Consumption
LPG (butane/propane)
G30/G31 kg/h 1 1.6
Number of injectors
12 12
Max. water pressure**
p
w
bar 12 12
Temperature control at maximum setting
Temperature increase
°C 50 50
Flow rate
l/min 3.5 5.5
Min. operating pressure
p
wmin
bar 0.1 0.1
Temperature control at minimum setting
Temperature increase
°C 25 25
Flow rate
l/min 7 11
Min. operating pressure
bar 1 1
Draught requirement
mbar 0.015 0.015
Flow rate
g/s 13 13
Temperature
°C 170 170
Output and heat
demand
Gas supply
specifications *
Flue
specifications***
Water system specifications