Installing The Pipework - Viessmann Vitomax HW Series Installation Instructions Manual

Boiler connections
Boiler size
Tab. 11

Installing the pipework

Danger
Risk of injury when opening pressurised boiler
flue connections.
Do not open boiler flue connections until they
are depressurised and have cooled down.
Fig. 3 Illustrative example. Standard delivery may
vary subject to order.
Boiler return connector
A
Boiler flow connector
B
Safety valve connector
C
High limit safety cut-out – sleeve R
D
Temperature controller – sleeve R
E
Control equipment – sleeve R
F
Drain connector
G
Hole for equipotential bonding
H
(cont.)
13 bar PN 40 DN
16 bar PN 40 DN
18 bar PN 40 DN
20 bar PN 40 DN
½
½
(additional)
½
13 mm
7
1 2 3
40 50 50 50
40 40 50 50
40 40 40 50
32 40 40 50
!
Please note
Unsuitable water quality can damage the boiler
shell.
Only fill the boiler with water that complies with
the "Standard values for water quality" (see
service instructions).
4 5 6 7
65 65 80
65 65 65
50 65 65
50 65 65
8 9
80 100
80 80
80 80
65 80
11