3
Heater
Model
Heat Input kW
Gas
Flowrate
(m³/hr)
Injector
Pressure
(mbar)
Injector
Size
(mm)
Size
(h x l x w)
Weight
(Kg)
Fan
Rating
(A)
Fan
Type
Gross
Nett
VSX20UT
20.0 18.0
1.9
10.0
1.7 450x4047x746 114 0.5
2501
VSX25UT
25.0
22.5
2.4
9.4
1.9
450x4047x746
114
1.0
2507
VSX30UT
32.0 28.8
3.1
13.0
2.0 450x4047x746 114 1.0
2507
VSX35UT
36.0
32.4
3.4
12.3
2.3
450x5927x746
158
1.0
2507
VSX40UT
40.0 36.0
3.8
12.8
2.4 450x5927x746 158 0.5
2560
VSX45UT
44.0
39.6
4.2
11.6
2.9
450x5927x746
158
0.5
2560
VSX50UT
49.5 44.6
4.7
12.8 2.5L
450x7692x746 205 0.5
2560
1.3
Table 1.
Technical Details.
All heaters to run on
Natural Gas (G20)
No of Injectors
1
Gas Connection
½ in BSP Internal thread
Flue Nominal Bore mm (in)
125 (5)
Unitary Fan Motor Details
230 volt 1 phase 50Hz
Table 2. Flue details
Heater Model
Mass Flow Rate of Flue
Gasses (kg/s)
Flue Pressure (Pa)
Maximum Flue
Resistance
Flue Gas Temp (°C)
VSX20UT
0.0116
35 - 42
190 - 250
VSX25UT
0.0132
VSX30UT
0.0133
VSX35UT
0.0166
VSX40UT
0.0173
VSX45UT
0.0196
VSX50UT
0.0220