4
VIADRUS G 50 is a cast iron boiler determined for combustion liquid and gaseous fuels. Two- and three-
sectional size suits the reconstruction of heat sources in smaller houses and recreational facilities. Bigger
sizes suit the requirements for heating of cottages, shops, schools etc.
Boilers are only manufactured as the hot-water type with forced heating water circulation and working
overpressure up to do 400 kPa (4 bar). Before the dispatch the boilers are tested for tightness by testing
overpressure 800 kPa (8 bar); they satisfy the insulation and transient resistance tests.
Boiler advantages:
1. A high service life of cast-iron exchanger and all other parts with regard to the quality of used materials.
2. Efficiency above 90 %.
3. Reliability of regulation and security elements.
4. Simple operation and maintenance.
5. Low demand on chimney draught.
6. Output graduation by number of sections.
3.
VIADRUS G 50 boiler technical data
Tab. no. 1 Dimensions, boiler technical parameters
fuel value: natural gas33,99 MJ.m
-3
furnace oil extra light(TOEL) 42,7 MJ/kg
Number of sections
pc
2
3
4
5
6
Boiler mass without burner
kg
165
216
270
319
367
Water space volume
l
27
40
53
66
79
Diameter of smoke socket
mm
130
130
150
150
150
Boiler dimensions: height x width
mm
785 x 600
length (without burners)
mm
488
638
788
938
1088
Heat-delivery surface
m
2
1,05
1,69
2,33
2,97
3,61
Combustion chamber volume
m
3
0,009
0,021
0,032
0,044
0,056
Combustion gas volume
m
3
0,0186
0,02586
0,0331
0,0403
0,0475
Combustion chamber depth
mm
205
355
505
655
805
Opening for burner
mm
115
Pressure loss on water side
mbar
0,15-0,5
0,15-1,35
0,15-1,40
0,15-1,50
0,15-2
Testing water overpressure
kPa (bar)
800 (8)
Working water overpressure
kPa (bar)
400 (4)
Recommended heating water operating
temperature
°C
50 – 80
Safety thermostat setting
°C
100
Pump thermostat setting
°C
45
Stand-by waste
kW
0,2
0,3
0,3
0,4
0,5
Pressure loss on flue gases side
-
see Fig. no. 4
Noise level
dB
See the burner documentation
Chimney draught
mbar
Min. 0,05
Min. 0,10
Tensile loss
mbar
0,27
0,28
0,29
0,3
0,36
Overpressure in the combustion chamber
mbar
0,11
0,14
0,18
0,21
0,26
Boiler connections – heating and return water
Js
1“
1 1/4“
Connection voltage
1/N/PE 230 V AC 50 Hz TN - S
Electric input
kW
Max. 0,1 + burner input
Electric coverage
IP 40
The values that depend on the type of used central burner are stated in burner documentation.
