Viessmann AC-Box - Upkeep

21
Fig.15
A
2-way valve V1
B
Plate heat exchanger 1
C
2-way valve V2
D
2-way valve V5
E
2-way valve V7
F
2-way valve V3
G
High efficiency circulation pump M1
H
Plate heat exchanger 2
K
2-way valve V6
L
High efficiency circulation pump M2
M
3-way diverter valve V4
N
Frost stat
Upkeep
Internal components
5675 895 GB
Maintenance