25
Technical features and dimensions
2.4 Operating data
Burner pressures reported in the following page must be verified after the boiler has been operating for 3 minutes.
Gas category: II2H3P
Fuel
Gas mains pressure [mbar] Diaphragm diameter [mm]
Flue CO2 value [%]
Natural gas G20
20
5,7
9.0 ÷ 9.6
Propane Gas G31
37
4,3
9.7 ÷ 10.3
Tab. 1 Adjustment specifications KC-KR-KRB 24
2.5 General characteristics
Description
um
KC 24
CH nominal heat input
kW
20,0
Minimum heat input
kW
5,0
Maximum heat output (80-60°C) - CH
kW
19,5
Minimum heat output (80-60°C) - CH
kW
4,8
Maximum heat output (50-30°C) - CH
kW
21,0
Minimum heat output (50-30°C) - CH
kW
5,4
Minimum CH system pressure
bar
0,5
Maximum CH system pressure
bar
3,0
DHW maximum heat input
kW
24,0
DHW minimum heat input
kW
5,0
DHW circuit min. pressure
bar
0,5
DHW circuit max. pressure
bar
6,0
DHW specific flow rate (ΔT=25K)
l/min
14,6
DHW specific flow rate (Δt=30K)
l/min
12,2
Electric power supply – voltage / frequency
V - Hz
230 -50
Power mains supply fuse
A
3,15
Maximum power consumption
W
85
Pump absorption
W
41
Electric protection rating
IP
X4D
Net weight
kg
23,5
Natural gas consumption at maximum CH output (Value referred to 15 °C - 1013 mbar)
cu. m/h
2,12
Propane gas consumption at maximum CH output
kg/h
1,55
Maximum CH working temperature
°C
83
Maximum DHW working temperature
°C
62
Total capacity of expansion vessel
l
7
Maximum recommended system capacity (Maximum water temperature 83°C, expansion
vessel pressure 1 bar)
l
100
Tab. 2 General specifications KC
Содержание minorca kr
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