99
Gas boiler, type B and C, category II
2N3P
Type
B1KF-26
B1KF-30
B1KF-35
Rated heating output range (details to EN 15502)
T
F
/T
R
= 50/30 °C
Natural gas
kW
3.2 (5.7
*1
) -
25.0
3.2 (5.7
*1
) -
25.0
3.2 (5.7
*1
) -
32.0
LPG
kW
3.2 - 25.0
3.2 - 25.0
3.2 - 32.0
T
F
/T
R
= 80/60 °C
Natural gas
kW
2.9 (5.2
*1
) -
23.0
2.9 (5.2
*1
) -
23.0
2.9 (5.2
*1
) -
29.3
LPG
kW
2.9 - 23.0
2.9 - 23.0
2.9 - 29.3
Rated frequency
Hz
50
Appliance fuse protection
A
4
Backup fuse (power supply)
A
16
Communication module
(integral)
WiFi frequency band
MH
z
2400 - 2483.5
Max. transmitting power
dB
m
20
Low power radio frequency band
MH
z
2400 - 2483.5
Max. transmitting power
dB
m
10
Supply voltage
V
24
Power consumption
W
4
Electronic temperature limiter setting (TN)
°C
91
Electronic temperature cut-out setting
°C
110
Permissible ambient temperature
■
During operation
°C
+5 to +40
■
During storage and transport
°C
-5 to +60
Weight
■
Excl. heating water and packaging
kg
35
35
35
■
Incl. heating water
kg
41
41
41
Water capacity
(excl. diaphragm expansion vessel)
l
3.0
3.0
3.0
Max. flow temperature
°C
82
82
82
Max. flow rate
(Limit for the use of hydraulic separation)
l/h
See residual head graphs
Nominal circulating water volume
At T
F
/T
R
= 80/60 °C
l/h
752
988
1259
Diaphragm expansion vessel
Capacity
l
8
8
8
Pre-charge pressure
bar
kPa
0.75
75
0.75
75
0.75
75
Permiss. operating pressure
bar
MP
a
3
0.3
3
0.3
3
0.3
Connections (with connection accessories)
Boiler flow and return
R
¾
¾
¾
Cold water and DHW
G
½
½
½
*1
Appliances for multiple connection of type B1HF-[kW]-M and B1KF-[kW]-M
Specification
Specification
(cont.)
6167586
Service
