3B

Formula:
2b+4m+p+HW
Hydrocollectors:
2x(2A, 2B, 2G, 3A, 3B)
(to see the description of a collector, click on the link)
Regulation:
634

Two-boiler scheme with two primary half-loops. Convenient for a large number of contours with high input temperature requirements. Overall contour power of the left and the right wing should not differ significiantly. Boiler pumps should be approximately of the same power. This requirement is not necessary for the C scheme.

1 group with the interaxal of 160mm for the 3-way MUT mixing groups, 2 groups with interaxal of 120mm for the UNT mixing groups