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2.1 Technical Data
Table 1 Technical Data
HARMONY_D USERS INSTALLATION AND SERVICE MANUAL
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2.1 Technical Data
Table 1 Technical Data
Product Model
HRD
Flue System/Type
Hermetic/C
12 (x)
Gas Class
II2H3B / P
Reference Gas
G20
Maximum Heat Power (Net)
kW
24.1
kcal/hour
20726
Efficiency at 100 % Load
%
93.8
Maximum heat load (Net)
kW
25.7
Minimum heat power
kW
10.11
Minimum heat load (Net)
kW
11.8
Maximum gas inlet pressure
mbar
20
Burner pressure for maximum load
mbar
11.5
Burner pressure for minimum load
mbar
1.7
Injector Diameter
mm
1.35-0.80
Ignition System
Electronic
NOx Class
3
CENTRAL HEATING SYSTEM DATA
Pressure (max / min)
bar
3.0/0.3
Expansion Tank Volume / Pressure
lt./bar
6.0/0.2
Maximum Water Temperature
°C
85
Temperature Range
°C
30-80 or 30-50
Frost Protection Operation Temperature
°C
6
DOMESTIC HOT WATER SYSTEM DATA
Temperature Range
°C
35-60
Pressure (max / min)
bar
6/0.2
DHW minimum flow rate
lt./min.
2.2
DHW Flow Rate at a Temp. rise of 30°C
lt./min.
12
PHYSICAL DATA
Flue Diameter
mm.
100 (suction) / 60 (discharge)
Overall Dimensions
(Width, Height, Depth)
mm.
400, 700.5, 340
Weight
–
Net / Gross (except flue set)
kg.
30.6 / 33.5
Heating
–
Supply / Return Connections
in.
3/4"
DHW
–
Input / Output Connections
in.
1/2"
Gas Connection ( via Kit )
in.
3/4" (1/2")
Safety Valve Connection
in.
1/2"
ELECTRICAL DATA
Electrical Connection
V/Hz
230/50
Internal Fuse Rating
A
4
Power Consumption
W
110
Electrical safety class
IP X3D
2.2 Dimensions