![Wolf CGB-2 Series Installation Instructions For Contractors Download Page 10](http://html.mh-extra.com/html/wolf/cgb-2-series/cgb-2-series_installation-instructions-for-contractors_991733010.webp)
10
3064810_201804
4. Specification
Type
CGB-2
14
20
24
-
-
CGB-2K
-
-
-
20
24
Rated heating output at 80/60 °C
kW
13.5
18.9/22.2
1)
23.8/27.1
1)
(23.8
3)
)
18.9/22.2
1)
23.8/27.1
1)
(23.8
3)
)
Rated heating output at 50/30 °C
kW
15.2
20.4
25.8
20.4
25.8
Rated heat input
kW
14.0
19.6/23.0
24.6/28.0
(24.6
3)
)
19.6/23.0
24.6/28.0
(24.6
3)
)
Lowest heating output (modulating) at 80/60 °C
kW
1.8/4.6
2)
3.8/6.8
2)
4.8/6.8
2)
3.8/6.8
2)
4.8/6.8
2)
Lowest heating output (modulating) at 50/30 °C
kW
2.1/5.4
2)
4.4/7.4
2)
5.6/7.4
2)
4.4/7.4
2)
5.6/7.4
2)
Lowest heat input (modulating)
kW
1.9/4.9
2)
3.9/6.9
2)
4.9/6.9
2)
3.9/6.9
2)
4.9/6.9
2)
Heating flow connection
G
¾" (DN20)
¾" (DN20)
¾" (DN20)
¾" (DN20)
¾" (DN20)
Heating return connection
G
¾" (DN20)
¾" (DN20)
¾" (DN20)
¾" (DN20)
¾" (DN20)
DHW connection/DHW circulation
G
¾"
¾"
¾"
¾"
¾"
Cold water connection
G
¾"
¾"
¾"
¾"
¾"
Gas connection
R
½"
½"
½"
½"
½"
Balanced flue connection
mm
60/100
60/100
60/100
60/100
60/100
Dimensions Depth
mm
378
378
378
378
378
Width
mm
440
440
440
440
440
Height
mm
790
790
790
790
790
Air/flue gas routing
Type
B23P, B33P, C13(x), C33(x), C43(x), C53(x), C63(x), C83(x), C93(x)
Gas supply details
Natural gas E/H
(Hi [net cv] = 9.5 kWh/m³ = 34.2 MJ/m³)
m³/h
1.44
2.06/2.42
2.52/2.95
2.06/2.42
2.52/2.95
Natural gas LL
(Hi [net cv]=8.6 kWh/m³ = 31.0 MJ/m³)
m³/h
1.59
2.28/2.67
2.79/3.25
2.28/2.67
2.79/3.25
LPG P (H
i
[net cv] = 12.8 kWh/m³=46.1 MJ/m³)
kg/h
1.07
1.53/1.80
1.87/2.19
1.53/1.80
1.87/2.19
Natural gas supply pressure (permiss. min./max.)
mbar
20 (17-25)
20 (17-25)
20 (17-25)
20 (17-25)
20 (17-25)
LPG supply pressure (permiss. min./max.)
mbar 50 (42.5-57.5)
50 (42.5-57.5)
50 (42.5-57.5)
50 (42.5-57.5)
50 (42.5-57.5)
Std seasonal efficiency [to DIN] at 40/30 °C
(Hi[net cv]/Hs[gross cv])
%
110/99
110/99
110/99
110/99
110/99
Std. seasonal efficiency [to DIN] at 75/60 °C
(Hi[net cv]/Hs[gross cv])
%
107/96
107/96
107/96
107/96
107/96
Efficiency at rated load at 80/60 °C
(Hi[net cv]/Hs[gross cv])
%
98/88
98/88
98/88
98/88
98/88
Efficiency at 30 % partial load and TR=30 °C
(Hi[net cv] /Hs[gross cv])
%
109/98
109/98
109/98
109/98
109/98
Flow temperature, factory setting
°C
75
75
75
75
75
Flow temperature up to approx.
°C
90
90
90
90
90
Max. overall pressure
bar
3.0
3.0
3.0
3.0
3.0
Max. residual head for heating circuit: HE pump (EEI <0.23)
600 l/h pump rate (14 kW at ∆t=20 K)
mbar
550
550
550
550
550
860 l/h pump rate (20 kW at ∆t=20 K)
mbar
-
430
430
430
430
1030 l/h pump rate (24 kW at ∆t=20 K)
mbar
-
-
280
-
280
DHW flow rate
l/min
-
-
-
2.0-6.5
2.0-8.0
Minimum flow pressure to EN 625
bar
-
-
-
0.4
0.65
Specific water throughput "D" at ∆t = 30 K
l/min
-
-
-
10.3
13.0
Max. permissible positive DHW pressure
bar
-
-
-
10
10
DHW temperature range (adjustable)
°C
-
-
-
45-65
45-65
Hot water content of htg. water heat exchanger
l
1.3
1.3
1.3
1.3
1.3
Expansion vessel, total capacity
l
10
10
10
10
10
Expansion vessel, pre-charge pressure
bar
0.75-0.95
0.75-0.95
0.75-0.95
0.75-0.95
0.75-0.95
Flue gas temperature 80/60-50/30 at Qmax
°C
62-45
70-50
76-50
70-50
76-50
Flue gas temperature 80/60-50/30 at Qmin
°C
30-25
30-25
33-27
30-25
33-27
Flue gas mass flow rate at Qmax
g/s
6.2
8.8/10.7
1)
10.9/13.0
1)
8.8/10.7
1)
10.9/13.0
1)
Flue gas mass flow rate at Qmin
g/s
0.9
1.8
2.3
1.8
2.3
Available gas fan draught at Qmax
Pa
125
135
180
135
180
Available gas fan draught at Qmin
Pa
10
14
17
14
17
Flue gas category
G
52
G
52
G
52
G
52
G
52
NOx class
6
6
6
6
6
Amount of condensate at 50/30 °C
l/h approx. 1.4
approx. 2.0
approx. 2.4
approx. 2.0
approx. 2.4
pH value of condensate
approx. 4.0
approx. 4.0
approx. 4.0
approx. 4.0
approx. 4.0
Power consumption in standby
W
3
3
3
3
3
Maximum power consumption
W
17-59/45
1)
17-51/63
1)
17-62/88
1)
17-51/63
1)
17-62/88
1)
IP rating
IP
IPX4D
IPX4D
IPX4D
IPX4D
IPX4D
Power supply/fuse/MCB protection
230 V/50 Hz/16 A/B
Total weight
kg
33
33
33
35
35
CE designation
CE-0085CO0098
ÖVGW quality symbol [Austria]
G 2.990
SVGW No. [Switzerland]
14-026-4
1)
Heating mode/DHW mode
2)
Natural gas/LPG (G31)
3)
Applies only to Switzerland
Meets the requirements of proKlima and KfW.
Summary of Contents for CGB-2 Series
Page 104: ...104 3064810_201804 46 Notes ...
Page 105: ...3064810_201804 105 46 Notes ...
Page 106: ...106 3064810_201804 46 Notes ...