2B

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

Primary loop through the boiler. A standard system, suitable for the majority of private houses with a small number of contours (heating zones). DHW can be connected through a 3-way mixing valve, as well as through a separate pump group (secondary loop).

3 groups with interaxal of 125mm