Viadrus K4 - Page 5

General Information
5
Tab. . 3 Sizes, operation temperature and electrical variables - VIADRUS K4GXH33XX
K4G1H33ZX
K4G1H33PX
K4G2H33ZX
K4G2H33PX
K4G3H33ZX
K4G3H33PX
Fuel type [-] ZP Propane ZP Propane ZP Propane
Category of appliance [-] I
2H
I
2E
I
3P
I
2H
I
2E
I
3P
I
2H
I
2E
I
3P
Version C
13
,C
33
, C
43
, C
53,
C
83
Weight [kg] 28 29,5 28,5
Water volume [l] 3 4 3
Boiler dimensions – width [mm] 460
– depth [mm] 350
– height [mm] 720
Ø of combustion air connection [mm] 80 / 100
Ø flue gas socket [mm] 80, 60 (see fig. no 10)
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. . 4 Thermal – technical parameters - VIADRUS K4GXH33XX
comparison conditions 15 °C and 101.325 kPa, dry gas
K4G1H33ZX
K4G1H33PX
K4G2H33ZX
K4G2H33PX
K4G3H33ZX
K4G3H33PX
Boiler output range [kW] 6,5 - 33
Nominal output 80/60 °C [kW] P=30,5
Nominal output 50/30 °C [kW] P=33
Minimum output 50/30 °C [kW] P=6,5
Maximum nominal heat input [kW] Q=31,4
Minimum nominal heat input [kW] Q=6,3
DHW flow with ∆T [l.min
-
1
] - See diagram 3 -
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
3
.h
-
1
] 0,68-3,3 0,28-1,28 0,68-3,3 0,28-1,28 0,68-3,3 0,28-,28
Mass flow rate of flue gas [kg.h
-
1
] 11 - 62
Nox class [-] 5
Flue gas temperature (max.) [°C] 85