General Information
4
3 Technical Data
Tab. . 1 Sizes, operation temperature and electrical variables - VIADRUS K4GXH24XX
K4G1H24ZX
K4G1H24PX
K4G2H24ZX
K4G2H24PX
K4G3H24ZX
K4G3H24PX
Fuel type [-] ZP Propane ZP Propane ZP Propane
Category of appliance [-] I
I
I
I
I
I
I
I
I
Version C
,C
, C
, C
C
Weight [kg] 26 27.5 26.5
Water volume [l] 2 3 2
Boiler dimensions – width [mm] 460
– depth [mm] 350
– height [mm] 720
Ø of combustion air connection [mm] 80 / 100 (see fig. no 10)
Ø flue gas socket [mm] 80, 60
Working water overpressure [bar] 3
Testing water overpressure [bar] 5
Pressure loss [-] See diagram 1
Maximum permitted working temperature [°C] 85
Heating water setting range [°C] 25 - 85
Hot water setting range [°C] - 35 - 60 35 - 60
Connecting overpressure of fuel [mbar] 20 37 20 37 20 37
Noise level [dB] < 50
Boiler connection
- heating water output [Js] 3/4“
- heating water input to the heater [Js] - 1/2“ 1/2“
- return heating water input [Js] 3/4“
- return water input from the heater [Js] 1/2“ 3/4“
- system water filling inlet [Js] 1/2" - -
- condensate outlet [mm] Ø 25
- safety valve output [mm] Ø 21,2
- gas inlet [Js] 3/4“
Connecting voltage 1/N/PE 230VAC 50 Hz, TN-S
El. power input including pump [W] 110
El. covering IP 40
Tab. . 2 Thermal – technical parameters - VIADRUS K4GXH24XX
comparison conditions 15 °C and 101.325 kPa, dry gas
K4G1H24ZX
K4G1H24PX
K4G2H24ZX
K4G2H24PX
K4G3H24ZX
K4G3H24PX
Boiler output range [kW] 5 - 24
Nominal output 80/60 °C [kW] 22,2
Nominal output 50/30 °C [kW] P=24
Minimum output 50/30 °C [kW] P=5
Maximum nominal heat input [kW] Q=22.8
Minimum nominal heat input [kW] Q=4.6
DHW flow with ∆T [l.min
] - See diagram 2 -
Boiler efficiency at the nominal output 80/60°C [%] Up to 98
Boiler efficiency at the nominal output 50/30°C [%] Up to 105
Volume flow rate of fuel [m
.h
] 0.5-2.4 0.2-0.9 0.5-2.4 0.2-0.9 0.5-2.4 0.2-0.9
Mass flow rate of flue gas [kg.h
] 8 - 45
Nox class [-] 5
Flue gas temperature (max.) [°C] 85
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