General Information
4
3
Technical Data
Tab.
№
. 1
Sizes, operation temperature and electrical variables - VIADRUS K4GXH24XX
K
4
G
1
H
2
4
Z
X
K
4
G
1
H
2
4
P
X
K
4
G
2
H
2
4
Z
X
K
4
G
2
H
2
4
P
X
K
4
G
3
H
2
4
Z
X
K
4
G
3
H
2
4
P
X
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]
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
K
4
G
1
H
2
4
Z
X
K
4
G
1
H
2
4
P
X
K
4
G
2
H
2
4
Z
X
K
4
G
2
H
2
4
P
X
K
4
G
3
H
2
4
Z
X
K
4
G
3
H
2
4
P
X
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
-1
]
-
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
3
.h
-1
]
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
-1
]
8 - 45
Nox class
[-]
5
Flue gas temperature (max.)
[°C]
85
