PREXTHERM
4
1. DIMENSIONS AND TECHNICAL DATA
A
B
C
D
E
F
G
H
L
M
a1 - a2
a3
a4
a5
100
970
760
1110
235
215
145 540
470
660
400
DN 50 1" 1/4
200
160
125
970
760
1260
235
365
145 540
470
810
400
DN 50 1" 1/4
200
160
150
970
760
1410
235
465
195 540
470
960
400
DN 50 1" 1/4
200
160
200
1060
850
1452
306
415
205 585
515
930
480
DN 65 1" 1/4
250
160
250
1060
850
1652
306
515
305 585
515
1130
480
DN 65 1" 1/4
250
160
300
1060
850
1852
306
615
405 585
515
1330
480
DN 65 1" 1/4
250
160
350
1230
1040
1832
484
405
395 670
600
1250
540
DN 80 1" 1/2
300
210
400
1230
1040
2032
484
605
395 670
600
1450
540
DN 80 1" 1/2
300
210
470
1230
1040
2232
484
805
395 670
600
1650
540
DN 80 1" 1/2
300
210
Output kW
Input kW
Water capac.
Pressure drop
Working press.
Weight
Min.
Max.
Min. Max.
m
3
dm
3
*Flue gas mbar **Water mbar
bar
kg
100
60
100
65
109
0,083
120
0,6
4
5
270
125
75
125
82
136
0,102
142
0,9
7
5
290
150
90
150
98
163
0,124
162
1,1
10
5
320
200
120
200
131
218
0,174
214
0,8
7
5
430
250
150
250
163
272
0,204
247
1,1
10
5
490
300
180
300
196
327
0,241
283
1,4
16
5
560
350
210
350
229
381
0,286
528
1,8
11
5
830
400
240
400
262
436
0,332
598
2,7
15
5
910
470
282
470
307
512
0,378
667
3,6
19
5
980
comb. chamber
volume
Legend
1
Boiler shell
2
Door
3
Burner mounting plate
4
Casing
5
Door insulation
6
Control panel
a1 Flow connection
a2 Return connection
a3 Safety valve tapping
a4 Flue outlet
a5 Burner flange
PREXTHERM 100-470
PREXTHERM
PREXTHERM
FERROLI
F
a4
a2
100
B
A
100
40
G
D
E
F
a1
a3
H
a5
C
FLUE CONDENSE
Ø 3/8
DRAIN OFF Ø 1
50
1
4
2
3
5
6
L
240
M
Fig. 1
*technical dates for oil-fired heating; for gas heating you must decrease of 15%
**
∆
t considered: 15
°
C
