4.3.1 Table of technical data, dimensions and connections
The column on the right gives the abbreviation used on the data plate.
PreX H 3 cond
Gas category
Heat input (kW)
Effective rated output (80/60°C) (kW)
Effective rated output (50/30°C) (kW)
Efficiency (80/60°C) (%)
Efficiency (50/30°C) (%)
Efficiency 30%
NOx class
Fuel consumption Max. output
Max. working pressure
Max. heating temperature
Heating water content
Pressure loss on fume side
Pressure loss on water side with Dt=10°C
Pressure loss on water side with Dt=20°C
Protection rating
Electrical power supply
Empty weight
Sizes
Firebox internal diameter
Firebox length
Nozzle max. diameter
Nozzle min. length
Heating delivery
High temperature heating return
Low temperature heating return
Expansion vessel connection
Boiler discharge connection
Flue connection
EN
58
65
Max.
61.3
Min.
18.4
Max.
59.5
Min.
18.0
Max.
65
Gas
Min.
19.7
Max.
62.9
Oil
Min.
19.1
Max.
97
Min.
98
Max.
106
Gas
Min.
107
Max.
102.5
Oil
Min.
104
Gas
Max.
107.5
Oil
Max.
104.5
Gas
4
Oil
3
Gas (G20)
m3/h
6.46
Oil
kg/h
5.17
bar
6
°C
95
liters
237
mbar
0.4
KPa
0,15
KPa
0,07
V/Hz
230/50
kg
377
A
mm
700
B
mm
1437
C
mm
1157
D
mm
650
E
mm
1275
G
mm
1335
H
mm
878
I
mm
123
J
mm
200
K
mm
200
L
mm
200
M
mm
155
N
mm
157
O
mm
122
P
mm
846
Q
mm
134
S
mm
80
V
mm
450
W
mm
905
L2
Ø mm
420
L1
mm
686
L3
Ø mm
155
mm
160
T1
DN 50
T2
DN 40
T3
DN 50
T4
DN 40
T5
1"
T6
Øe mm
160
cod. 30902840 - Rev. 00 - 02/2018
100
150
230
I2H (IT - ES)
94.3
141.5
217.0
28.3
42.5
65.1
91.5
137.3
210.5
27.7
41.6
63.8
100
150
230
30.3
45.4
69.7
96.7
145
222.4
29.4
44.2
67.7
97
97
97
98
98
98
106
106
106
107
107
107
102.5
102.5
102.5
104
104
104
107.5
107.5
107.5
104.5
104.5
104.5
4
5
5
1
1
1
9.98
14.97
22.96
7.95
11.93
18.3
6
6
6
95
95
95
296
349
571
0.65
1.7
1.7
0,2
3,0
3,4
0,13
1,7
1,3
IPX0D
230/50
230/50
230/50
436
490
645
700
700
800
1437
1437
1637
1377
1577
1777
650
650
750
1275
1275
1475
1335
1335
1535
1098
1298
1498
123
123
142
260
350
400
300
320
400
260
350
400
155
155
156
157
157
157
122
122
122
1066
1266
1467
134
134
134
80
80
80
443
435
500
905
905
1055
420
420
500
906
1106
1308
155
155
155
160
160
160
DN 50
DN 50
DN 65
DN 40
DN 40
DN 40
DN 50
DN 50
DN 65
DN 40
DN 40
DN 40
1"
1"
1"
160
160
200
PREX H 3 COND
370
500
650
349.1
471.7
613.2
104.7
141.5
184
338.6
457.5
594.8
P 80° - 60°
102.6
138.7
180.3
P 80° - 60°
370
500
650
P 50° - 30°
112
151.4
196.8
P 50° - 30°
357.8
483.5
628.5
P 50° - 30°
108.9
147.2
191.3
P 50° - 30°
97
97
97
98
98
98
106
106
106
107
107
107
102.5
102.5
102.5
104
104
104
107.5
107.5
107.5
104.5
104.5
104.5
5
4
4
1
1
1
36.94
49.92
64.9
29.43
39.77
51.7
6
6
6
95
95
95
881
1202
1327
2
3.5
4.2
2,4
2,6
3,2
1,8
0,8
0,9
230/50
230/50
230/50
1035
1338
1451
950
1050
1050
1462
1462
1462
1987
2187
2387
900
1000
1000
1655
1805
1805
1715
1860
1860
1698
1900
2100
172
179
179
450
500
600
450
500
600
450
500
500
176
221
221
167
167
167
122
120
120
1667
1867
2067
144
144
144
70
70
70
550
587
580
1200
1315
1315
550
610
610
1473
1672
1872
190
190
190
160
160
160
DN 80
DN 100
DN 100
DN 50
DN 65
DN 65
DN 80
DN 100
DN 100
DN 50
DN 65
DN 65
1"
1"
1"
250
300
300
Qn (Hi)
Qn (Hi)
NOx
NOx
PMW
tmax