Specifications; Cob-2 Oil Condensing Boiler - Wolf COB-2 Operation Instructions Manual

Specifications

11 Specifications
11.1

COB-2 oil condensing boiler

Oil condensing boiler
Rated output:
at 80/60°C stage 1 / 2
at 50/30°C stage 1 / 2
Rated load, stage 1 / 2
Oil throughput, stage 1 / 2
External diameter, heating flow
External diameter, heating return
Drain connection
Oil connection, flow/return hoses
Dimensions:
Height
Width
Depth
Weight
Air/flue pipe connection
Air/flue gas routing
Fuel oil to DIN 51603-1/6
Nozzle *
Fuel oil filter
CO setting (casing open)
2
O setting (casing open)
2
CO maximum (casing closed)
2
O minimum (casing closed)
2
Pump pressure stage 1
Pump pressure stage 2
Maximum negative pressure in oil line
Flow temperature, factory setting:
Heat generator
DHW
Max. flow temperature
Heating water pressure drop at Δ T=20 K
Heating water pressure drop at Δ T=10 K
Minimum system pressure
Operating pressure
Max. permissible boiler pressure
Heating surface, heating water heat
exchanger
Water capacity of heating water heat
exchanger
Efficiency:
at rated load at 80/60°C (net cv / gross cv)
at 30 % partial load and TR = 30°C
(net cv / gross cv)
Boiler standby loss qB at 70°C (EnEV)
Rated heat input, stage 2:
Flue gas mass flow rate
Flue gas temperature 50/30 - 80/60°C
Available fan draught
Lowest heat input (stage 1):
72 | WOLF GmbH
COB-2-15
kW 9.2 / 14.7
kW 9.6 / 15.4
kW 9.2 / 14.7
kg/h 0.78 / 1.24
G 1½"
G 1½"
1"
G ⅜"
mm 1290
mm 566
mm 605
kg 92
mm 80/125
B23, B33, C33(x), C43(x), C53(x), C63(x), C83(x),
Type
Standard fuel oil EL, low sulphur fuel oil EL, biofuel
Danfoss 0.30 / 80° S 0.35 / 60° S 0.45 / 80° S 0.55/80° S
% 12.7 ± 0.3
% 3.8 ± 0.4
% 13.5
% 2.7
bar 5.0
bar 13.5
bar -0.3
°C 80
°C 65
°C 90
mbar 3.6
mbar 12
bar 1
bar 1.5 - 2.5
bar 3
m² 2.55
L 7.5
% 99.7 / 94.1
% 104.7 / 98.8 104.1 / 98.2 104.7 / 98.8 104.3 / 98.4
% 0.75
g/s 6.45
°C 40 - 63
Pa 65
COB-2-20 COB-2-29
13.4 / 19.5 18.9 / 28.8
14.1 / 20.4 19.9 / 30.4
13.5 / 19.6 19.0 / 29.0
1.14 / 1.65 1.60 / 2.44
1½" 1½"
1½" 1½"
1" 1"
⅜" ⅜"
1290 1290
566 566
605 605
92 92
80/125 80/125
C93(x)
oil B10
Siku max. 40 μm
12.7 ± 0.3 12.7 ± 0.3
3.8 ± 0.4 3.8 ± 0.4
13.5 13.5
2.7 2.7
8.5 9.8
17.0 24.0
-0.3 -0.3
80 80
65 65
90 90
6 17
21 55
1 1
1.5 - 2.5 1.5 - 2.5
3 3
2.55 3.05
7.5 9.0
99.5 / 93.9 99.6 / 94.0
0.75 0.55
9.06 13.33
49 - 69 55 - 76
65 105
COB-2-40
27.4 / 38.5
28.7 / 40.4
27.5 / 38.7
2.32 / 3.26
1½"
1½"
1"
⅜"
1490
566
605
122
110/160
12.7 ± 0.3
3.8 ± 0.4
13.5
2.7
14
25.0
-0.3
80
65
90
54
205
1
1.5 - 2.5
3
3.85
11.5
99.5 / 93.9
0.45
17.51
56 - 83
150
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