INSTALLATION INSTRUCTIONS
4
2. TECHNICAL CHARACTERISTICS
2.1 Technical data
Model
RHR 25
CE Certification
n°
0694CO7385
Appliance Type
II2H3+
Appliance Category
C12 - C32 - C42 - C52 - C62 - C82
Heat Input max
kW
26
Heat Input min (Central Heating circuit)
kW
18
Heat Input min (Domestic Hot Water circuit)
kW
12.5
Heat Output max - 50/30°C
kW
26.44
Heat Output max - 80/60°C (Non condensing)
kW
24.93
Heat Output min - 80/60°C (Non condensing)
kW
17.23
Efficiency 100% (full load 50/30°)
%
101.7
Efficiency 30% (partial load 50/30°)
%
98.9
Efficiency 100% (full load 80/60°)
%
95.9
Efficiency 30% (partial load 80/60°)
%
94.7
GAS DIRECTIVE 92/42/ECC - Efficiency marking
stars
4
NOx
class
1
Flue Mass at full load
g/s
15.41
Flue Mass at minimum load
g/s
15.4
Flue gas temperature at full load
°C
68.2
Central Heating circuit
Central Heating water temperature setting (min-max)
°C
30-80 / 25-45
Max. heating working temperature
°C
95
Expansion vessel capacity
litres
8
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
35-75
Max. Hot water working pressure
bar
6
Min. Hot water working pressure
bar
0.5
D.H.W. flow rate at
∆
T 30°C
litr/min
12.25
Dimensions (Boiler casing size)
Width
mm
450
Height
mm
785
Depth
mm
330
Weight (net)
kg
48
Hydraulic connections
Central Heating Flow connection
Ø
¾”
Central heating Return connection
Ø
¾”
Cold water mains connection
Ø
½”
D. Hot water connection
Ø
½”
Gas connection
Ø
¾”
Flue systems
Horizontal concentric
Ø
60/100
Maximum flue length
m
3
Horizontal twin pipe
Ø
80/80
Maximum flue length
m
24
Vertical concentric
Ø
60/100
Maximum flue length
m
3
Gas Supply
Natural gas G 20
Inlet pressure
mbar
20
Gas consumption
m
3
/h
2.75
Butane G30
Inlet pressure
mbar
30
Gas consumption
kg/h
2.05
Propane G31
Inlet pressure
mbar
37
Gas consumption
kg/h
2.02
Electrical specifications
Power supply
V/Hz
230/50
Electrical power consumption
W
145
Electrical protection
IP
X4D