Technical Characteristics - Bosch WR8 series Installation Manual And Operating Instructions

Gas instantaneous water heater
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1.6

Technical characteristics

Temperature control at maximum setting
Temperature control at minimum setting
*
H
15°C - 1013 mbar - dry :
i
**
This figure must not be exceeded taking account of water expansion
***
At maximum rated heat output
4
Technical Data
Rated max. heat output
Rated min. heat output
Output (modulation range)
Rated max. heat input
Rated min. heat input
Supply pressure
LPG (butane/propane)
Consumption
LPG (butane/propane)
Number of injectors
Max. water pressure**
Temperature increase
Flow rate
Min. operating pressure
Temperature increase
Flow rate
Min. operating pressure
Draught requirement
Flow rate
Temperature
LPG: Butane 45.7 MJ/kg (12.7 kWh/kg)
Symbol
Unit
WR8
P
kW
11.8
n
P
kW
7.0
min
kW
7.0 - 11.8
Q
kW
13.5
n
Q
kW
8.1
min
G30/G31
mbar
28-30/37
G30/G31
kg/h
1
12
p
bar
12
w
°C
50
l/min
3.5
p
bar
0.1
wmin
°C
25
l/min
7
bar
1
mbar
0.015
g/s
13
°C
170
Propane 46.4 MJ/kg (12.9 kWh/kg)
WR11
19.2
7.0
7.0 - 19.2
21.8
8.1
28-30/37
1.6
12
12
50
5.5
0.1
25
11
1
0.015
13
170
6 720 607 884

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Wr11 series

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