Viessmann WB1A007 Specifications

Model WB1C System Combination
Mode Unit 19 26 30 35 26 30 35
Rated CH Output
At Tf/Tr 50/30 ºC (condensing) kW 6.5 - 19 6.5 - 26.0 8.8 - 30.0 8.8 - 35.1 6.5 - 26.0 8.8 - 30.0 8.8 - 35.00
At Tf/Tr 80/60 ºC (non-condensing) kW 5.9 - 17.3 5.9 - 23.7 8.0 - 26.6 8.0 - 31.1 5.9 - 23.7 8.0 - 26.6 8.0 - 35.0
Rated Central Heating Input (net) kW 6.1 - 17.8 6.1 - 24.3 8.2 - 27.9 8.2 - 32.8 6.1 - 24.3 8.2 - 27.9 8.2 - 32.7
Rated Central Heating Input (gross) kW 7.7 - 19.8 7.7 - 27.0 9.1 - 30.9 9.1 - 36.4 7.7 - 27.0 9.1 - 30.9 9.1 - 36.4
Domestic Hot Water Output range kW - - - - 6.7 - 26.0 8.0 - 30.0 8.0 - 35.0
Max. Nat gas rate (CH mode) m3/h 1.9 2.6 3 3.5 2.6 3 3.5
Max LPG kg/H 1.4 1.9 2.2 2.6 1.9 2.2 2.6
Max. Nat gas rate (DHW mode) - - - - 2.9 3.3 3.9
Gas Supply pressure
Natural gas 20 20 20 20 20 20 20
LPG 37 37 37 37 37 37 37
Max Permissible gas supply Pressure
Natural gas 25 25 25 25 25 25 25
LPG 45 45 45 45 45 45 45
Efficiency/Emissions
Full load 100% % 88.2 88.3 88.3 88.2 88.3 88.3 88.2
Part load 30% % 97.9 97.9 97.5 98.5 97.9 97.5 98.5
Seasonal Efficiency (SEDBUK) % 90.3 90.3 90.4 90.3 90.2 90.3 90.2
SEDBUK rating A A A A A A A
NOx classification class 5 (<39
mg/kWh)
5 (<39
mg/kWh)
5 (<39
mg/kWh)
5 (<39
mg/kWh)
5 (<39
mg/kWh)
5 (<39
mg/kWh)
5 (<39
mg/kWh)
DHW/CH
DHW performance @ 35˚C temp. rise l/min
- - - -
10.6 12.3 14.3
DHW temp. range ˚C
- - - -
30-60 30-60 30-60
Maximum mains water inlet pressure bar
- - - -
10 10 10
Min. mains water inlet pressure for max
DHW heat output
bar
- - - -
1 1 1
Minimum mains water inlet pressure for operation bar
- - - -
0.5 0.5 0.5
Minimum DHW flow rate for operation l/min
- - - -
0.5 0.5 0.5
Minimum CH system pressure - cold bar 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Maximum CH system pressure - hot bar 3 3 3 3 3 3 3
Cylinder Capacity l
- - - -
- - -
CH flow temp. range ˚C 30-80 30-80 30-80 30-80 30-80 30-80 30-80
General specification
Integral expansion vessel capacity ltr 8 8 8 8 8 8 8
Integral expansion vessel pre-charge pressure bar 0.75 0.75 0.75 0.75 0.75 0.75 0.75
Max CH system water content using fitted
expansion vessel, @ 0.75bar and 80˚C
ltr 125 125 125 125 125 125 125
Total water capacity ltr 2.8 2.8 3.4 3.4 2.8 3.4 3.4
Lift weight kg 35 36 37 37 36 38 38
Total weight (incl packaging) kg 37 38 39 39 38 40 40
Electricity supply
230v 50 HZ 230v 50 HZ 230v 50 HZ 230v 50 HZ 230v 50 HZ 230v 50 HZ 230v 50 HZ
Internal fuse A 2.5 2.5 2.5 2.5 2.5 2.5 2.5
Maximimum power consumption W 102 107 106 154 119 134 154
Water protect. rating IP X4D IP X4D IP X4D IP X4D IP X4D IP X4D IP X4D
Flue temp. @50/30 - max CH output ºC 45 45 45 45 45 45 45
Flue temp. @50/30 - min CH output ºC 35 35 35 35 35 35 35
Flue temp. @80/60 - max CH output ºC 68 68 68 70 68 68 70
Flue products mas flow rate - NG - max CH output kg/h 30.1 41.1 49.0 56.9 41.1 49.0 56.9
Flue products mas flow rate - NG - min CH output kg/h 14.6 14.6 17.6 17.6 1.6 17.6 17.6
Flue products mas flow rate - LPG - max CH output kg/h 34
46.4 54.0 62 46.4 54.0 62
Flue products mas flow rate - LPG - min CH output kg/h 15.9 15.9 19.4 19.4 15.9 19.4 19.4
Gas council number 41- 819 -26 41- 819 -27 41- 819 -28 41- 819 -29 47- 819-20 41-819-21 41- 819 -22
Product ID CE-0085
BT0029
CE-0085
BT0029
CE-0085
BT0029
CE-0085
BT0029
CE-0085
BT0029
CE-0085
BT0029
CE-0085
BT0029
Dimens./Connect.
Inner flue duct diameter mm 60 60 60 60 60 60 60
Outer flue duct diameter mm 100 100 100 100 100 100 100
Boiler dimension H x W x D mm 700 x 400
x 350
700 x 400
x 350
700 x 400
x 350
700 x 400
x 350
700 x 400
x 350
700 x 400
x 350
700 x 400
x 350
DHW outlet & inlet mm 22 22 22 22 15 15 15
CH flow & return mm 22 22 22 22 22 22 22
Condensate & SV outlet combined mm 22 22 22 22 22 22 22
Gas mm 22 22 22 22 22 22 22
Max. flue length (BF) horizontal/vertical m 19 13.5 13.5 17 13.5 13.5 17
14/15
* The burner output has to be matched to the flue system, please observe the installation instructions.

Viessmann WB1A007 Specifications

General

Brand	Viessmann
Model	WB1A007
Category	Boiler
Language	English