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2.11 Technical Characteristics - Bosch WR11B series Installation Manual And Operating Instructions

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2.11 Technical characteristics

Technical characteristics
Power and flow
Nominal useful power
Minimum useful power
Useful power (adjustment range)
Nominal thermal flow
Minimum thermal flow
1)
Gas data
Supply pressure
Natural gas H
LPG (Butane/Propane)
Consumption
Natural gas H
LPG (Butane/Propane)
Number of injectors
Water data
Maximum permissible pressure
Temperature selector in fully clockwise position
Temperature rise
Flow range
Minimum operating pressure
Minimum pressure for maximum water
flow
Temperature selector in fully anti-clockwise position
Temperature rise
Flow range
Minimum pressure for maximum water
flow
3)
Combustion products
Minimum low pressure
Flow
Temperature
Table 6
1) Hi 15 °C - 1013 mbar - dry: Natural gas 34.02 MJ/m
LPG: Butane 45.65 MJ/kg (12.7 kWh/kg) - Propane 46.34 MJ/kg (12.9 kWh/kg)
2) Considering the water dilution effect this value must not be exceeded.
3) For nominal calorific power.
Symbol
Units
Pn
Btu/h
Pmin
Btu/h
Btu/h
Qn
Btu/h
Qmin
Btu/h
G20
G30
G20
m3/h
G30
Kg/h
2)
pw
l/min
pwmin
l/min
mbar
3
(9.5 kWh/m
Technical Characteristics and Dimensions | 9
WR11
65570
23905
23905-65570
74450
27660
kPa
2
kPa
2,8
2,2
1,75
12
psi
170
°C
50
2 - 5,5
psi
1,5
psi
3,6
°C
25
4 - 11
psi
8,7
0,015
g/s
13
°C
160
3
)
WR14
WR18
80595
104165
23905
23905
23905 - 80595
23905 - 104165
92210
117825
27660
27660
2
2
2,8
2,8
2,77
3,5
2,2
2,79
14
18
170
170
50
50
2,0 - 7
2,0 - 8,8
1,5
3,0
5,0
7,2
25
25
4 - 14
4 - 17,6
14,5
19
0,015
0,015
17
22
170
180
6 720 648 592 (2011/06)

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