4.3.4
Back-to-back configuration - RG
Sample configuration drawing with 3 RG boilers; 2 x MCA 160
and 1 x MCA 45-115.
Fig.28
3 RG boilers
AD-4100022-01
C
325
630
630
A
B
125
6
0
2
5
0
0
500
6
0
2
30
600
1230
1310
226
676
1278
305
192
1
7
3
6
2
0
0
3
,5
2
6
7
,5
1260
3
1
2
1 System water supply; connection DN 65/DIN 2631 (4
holes)
2 System return; connection DN 65/DIN 2631 (4 holes)
3 Gas supply connection DN 65/DIN 2633 (4 holes)
Air supply 150 mm
Flue gas outlet 150 mm
A System flow centre line = 330 mm up to 350 kW and
560 mm above 350 kW
B System return centre line = 210 mm to 350 kW and
200 mm above 350 kW
C Low-loss header; DN 65 connection with adapter to
DIN 100 = 361 mm to 350 kW and 701 mm above
350 kW
4 Before installation
30
MCA
7680446 - v.01 - 14082017
