IVT C7 - Page 19

Technical information
6 720 643 409 (2010/03)
19
Fig. 16 Two heat pumps (cascade connection), non-shunted and shunted heating circuit with buffer tank and external hot
water heating
6 720 641 855-14.1I
For explanations for the system solutions
(Æ 7.2.1).
For circuit E12 the accessory IVT mixing
valve module 1000 is required