Viessmann B2TF - Specification Specification

116
Gas boiler, type B and C, category II
2N3P
Type B2TF
Rated heating output range (details to EN 15502)
T
F
/T
R
= 50/30 °C (P(50/30))
Natural gas kW 1.9 - 19 1.9 - 25 1.9 - 32
LPG kW 2.5 - 19 2.5 - 25 2.5 - 32
T
F
/T
R
= 80/60 °C (Pn(80/60))
Natural gas kW 1.7 - 17.5 1.7 - 23 1.7 - 29.3
LPG kW 2.2 - 17.5 2.2 - 23 2.2 - 29.3
Rated heating output for DHW heating
Natural gas kW 1.7 - 22 1.7 - 28.6 1.7 - 33.9
LPG kW 2.2 - 22 2.2 - 28.6 2.2 - 33.9
Rated heat input (Qn)
Natural gas kW 1.8 - 17.8 1.8 - 23.4 1.8 - 29.9
LPG kW 2.3 - 17.8 2.3 - 23.4 2.3 - 29.9
Rated heat input for DHW heating (Qnw) kW 22.7 29.5 34.9
Product ID CE-0085CT0017
IP rating to EN 60529 IP X4
■
In conjunction with assembly kit (accesso-
ries)
IP X1
Protection class I
NO
X
Category 6
Gas supply pressure
Natural gas mbar
kPa
20
2
20
2
20
2
LPG mbar
kPa
50
5
50
5
50
5
Max. permiss. gas supply pressure
*3
Natural gas mbar
kPa
25.0
2.5
25.0
2.5
25.0
2.5
LPG mbar
kPa
57.5
5.75
57.5
5.75
57.5
5.75
Sound power level
(to EN ISO 15036-1)
– At partial load dB(A) 38.8 38.8 38.8
– At rated heating output (DHW heating) dB(A) 49.2 50.7 52.6
Power consumption in the delivered condi-
tion (incl. circulation pump)
W 54 68 110
Rated voltage V 230
Rated frequency Hz 50
Appliance fuse protection A 6.3
Backup fuse (power supply) A 16
RF module (integral)
WiFi frequency band MHz 2400 - 2483.5
Max. transmitting power dBm 17
Low power radio frequency band MHz 2400 - 2483.5
Max. transmitting power dBm 6
*3
If the gas supply pressure is higher than the maximum permissible value, install a separate gas pressure governor up-
stream of the system.
Specification
Specification
6151778
Service