INSTALLATION INSTRUCTIONS
_
RHA 28
Technical Data
CE certification no.
0694BN3485
Flue category (UNI10642)
C
12
C
32
C
42
C
52
C
82
Heat Input max
kW (Btu/hr)
26.8 (91495)
Heat Input min
kW (Btu/hr)
20 (68280)
Heat Output max (80/60°)
kW (Btu/hr)
25.51 (87103)
Heat Output max (50/30°)
kW (Btu/hr)
27.47 (93783)
Heat Output min (80/60°)
kW (Btu/hr)
19.02 (64934)
100% Efficiency 100% (80/60°)
%
95.2
Efficiency 100% (50/30°)
%
102.5
Efficiency 30% (80/60°)
%
94.7
Efficiency 30% (50/30°)
%
100,8
Heating circuit
Central heating water temperature setting (min-max)
°C
30-80
Max. heating temperature
°C
80
Max. working pressure (heating)
bar
3
Min. working pressure (heating)
bar
0.3
Expansion vessel capacity
litres
10
Domestic hot water
D.H.W. temperature setting
°C
35-60
Max. Hot water working pressure
bar
6
Min. Hot water working pressure
bar
0.5
Storage cylinder capacity
litres
15
Continuous hot water supply -
∆
t 30° - mixed water
litres/h 783
Max. continuous hot water supply -
∆
t 30° mixed water - first 10 minutes
litres 146
Dimensions
Width
mm 490
Depth
mm
450
Height
mm
900
Weight kg
70
Electrical supply
Electrical connection
V/Hz
230/50
Power supply
W
165
Electrical protection
IP
X4D
Flue systems
Horizontal-Coaxial flue system -
kit K
Ø
100/60
Max. flue length
m
3
Twin pipe flue system -
kit H
Ø
80/80
Max. flue length
m
30
Vertical-Coaxial flue system -
kit V
Ø
100/60
Max. flue length
m
3
Electrical specifications
Natural Gas G 20
Inlet pressure
mbar
20
Gas consumption
m3/h
2.83
Liquid Butane Gas G 30
Max. Inlet pressure
mbar
30
Gas consumption
kg/h
2.11
Liquid Propane Gas G 31
Max. Inlet pressure
mbar
37
Gas consumption
kg/h
2.08
CONDENSING WALL-HUNG BOILER – TG05A062.A0505
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