TECHNICAL CHARACTERISTCS
4
2. TECHNICAL CHARACTERISTICS
2.1 Technical data
Models
RKR 24
RKR 28
RKR 34
CE Certification
n°
0694BN3485
Appliance Type
B23p – B33 - C13 - C33 - C43 - C53 - C63 - C83 – C93
Appliance Category
II2H3B/P
Heat Input max
kW
18
25
34
Heat Input max D.H.W.
kW
23.5
28.5
34
Heat Input min
kW
4
9
10
Heat Output max (50/30°)
kW
19.26
26.68
36.24
Heat Output max – 80/60°C (Non condensing)
kW
17.69
24.6
33.42
Heat Output min – 80/60°C (Non condensing)
kW
3.9
8.73
9.73
Full Load Efficiency (SEDBUK EFFICIENCY)
%,net
98.3
98.4
98.3
Part Load Efficiency (SEDBUK EFFICIENCY)
%,net
108.1
106.3
107.9
GAS DIRECTIVE 92/42/ECC – Efficiency marking
stars
4
Sedbuk
band
A
Central Heating circuit
Central Heating water temperature setting (min-max)
°C
30-80 / 25-40
Max. Heating working temperature
°C
80
Expansion vessel capacity
litres
7
Max. Working pressure (heating)
bar
3
Min. Working pressure (heating)
bar
0.3
Domestic Hot Water circuit
D.H.W. temperature setting (min-max)
°C
35-60
Max. Hot water working pressure
bar
6
Min. Hot water working pressure
bar
0.5
D.H.W. flow rate at
∆
T 25K
litr/mn
13,3
16
19,2
D.H.W. flow rate at
∆
T 30K
litr/mn
11,1
13,4
16
D.H.W. flow rate at
∆
T 35K
litr/mn
9,5
11,5
13,7
D.H.W. flow rate at
∆
T 40K
litr/mn
8,3
10,1
12
D.H.W. flow rate at
∆
T 50K
litr/mn
6,7
8,1
9,6
Dimensions (Boiler casing size)
Width
mm
410
Height
mm
730
Depth
mm
285
285
310
Weight (net)
kg
38
40
42
Hydraulic connections
Central Heating Flow connection
Ø mm
22
Central heating Return connection
Ø mm
22
Cold water mains connection
Ø mm
15
D. Hot water connection
Ø mm
15
Gas connection
Ø mm
15
Condensate Drain
Ø mm
25
Flue systems
Horizontal-Concentric flue system
Ø mm
60/100
Max. Flue length
m
6
6
3
Horizontal-Concentric flue system
Ø mm
80/125
Max. Flue length
m
12
10
8
Twin pipe flue system
Ø mm
80/80
Max. Flue length (from terminal to terminal)
m
50
Twin pipe flue system
Ø mm
60/60
Max. Flue length (from terminal to terminal)
m
30
Vertical-Concentric flue system
Ø mm
60/100
Max. Flue length
m
6
6
3
Vertical-Concentric flue system
Ø mm
80/125
Max. Flue length
m
12
10
8
Gas Supply
Natural gas G 20
Inlet pressure
mbar
20
Gas consumption
m
3
/h
1.91
2.65
3.6
Butane G30
Inlet pressure
mbar
30
Gas consumption
kg/h
1.42
1.97
2.68
Propane G31
Inlet pressure
mbar
37
Gas consumption
kg/h
1.4
1.94
2.64
Electrical specifications
Power supply
V/Hz
230/50
Electrical power consumption
W
180
Electrical protection
IP
X4D