6720648592 (2014/05)
8 | Technical Characteristics and Dimensions
2.10 Technical characteristics
Technical characteristics
Symbol
Units
WR11
WR14
WR18
Power and flow
n
P
r
e
w
o
p
l
u
f
e
s
u
l
a
n
i
m
o
N
Btu/h
65570
80595
104165
n
i
m
P
r
e
w
o
p
l
u
f
e
s
u
m
u
m
i
n
i
M
Btu/h
23905
23905
23905
Useful power (adjustment range)
Btu/h
23905-
65570
23905 -
80595
23905 -
104165
n
Q
w
o
lf
l
a
m
r
e
h
t
l
a
n
i
m
o
N
Btu/h
74450
92210
117825
n
i
m
Q
w
o
lf
l
a
m
r
e
h
t
m
u
m
i
n
i
M
Btu/h
27660
27660
27660
Gas data
1)
1) Hi 15 °C - 1013 mbar - dry: Natural gas 34.02 MJ/m
3
(9.5 kWh/m
3
)
LPG: Butane 45.65 MJ/kg (12.7 kWh/kg
) - Propane 46.34 MJ/kg (12.9 kWh/kg)
Supply pressure
0
2
G
H
s
a
g
l
a
r
u
t
a
N
kPa
2
2
2
0
3
G
)
e
n
a
p
o
r
P
/
e
n
a
t
u
B
(
G
P
L
kPa
2,8
2,8
2,8
Consumption
0
2
G
H
s
a
g
l
a
r
u
t
a
N
m3/h
2,2
2,77
3,5
0
3
G
)
e
n
a
p
o
r
P
/
e
n
a
t
u
B
(
G
P
L
Kg/h
1,75
2,2
2,79
Number of injectors
12
14
18
Water data
Maximum permissible pressure
2)
2) Considering the water dilution effect
this value must not be exceeded.
pw
psi
170
170
170
Temperature selector in fully clockwise position
Temperature rise
°C
50
50
50
Flow range
l/min
2 - 5,5
2,0 - 7
2,0 - 8,8
n
i
m
w
p
e
r
u
s
s
e
r
p
g
n
it
a
r
e
p
o
m
u
m
i
n
i
M
psi
1,5
1,5
3,0
Minimum pressure for maximum water flow
psi
3,6
5,0
7,2
Temperature selector in fully anti-clockwise position
Temperature rise
°C
25
25
25
Flow range
l/min
4 - 11
4 - 14
4 - 17,6
Minimum pressure for maximum water flow
psi
8,7
14,5
19
Combustion products
3)
3) For nominal calorific power.
Minimum low pressure
mbar
0,015
0,015
0,015
Flow
g/s
13
17
22
Temperature
°C
160
170
180
Table 6
