Viessmann B2HF - Page 127

127
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 frequency Hz 50
Appliance 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
Zigbee frequency band MHz 2400 - 2483.5
Max. transmitting power dBm 10
Supply voltage V 24
Power consumption W 4
Power consumption (delivered condition) W 47 68 92
Permissible ambient temperature
■
During operation °C +5 to +40
■
During storage and transport °C -5 to +65
Electronic temperature limiter setting (TN) °C 91
Setting of electronic temperature limiter °C 110
Weight
■
Without heating water kg 34.5 34.5 34.5
■
Incl. heating water kg 40.6 40.6 40.6
Permiss. operating pressure (PMS) bar
MPa
3
0.3
3
0.3
3
0.3
DHW heating
Permiss. operating pressure (PMW) bar 10 10 10
MPa 0.1 0.1 0.1
Specific water flow rate l/min 14.45 15.69 17
Max. DHW temperature °C 60 60 60
Comfort factor Stars 3 3 3
Dimensions
Length mm 360 360 360
Width mm 450 450 450
Height mm 700 700 700
Gas connection R ¾ ¾ ¾
Flue gas connection Ø mm 60 60 60
Ventilation air connection Ø mm 100 100 100
Specification
Specification (cont.)
5593201
Service