Viessmann Vitomax LW M64 Installation Instructions Manual page 13

Boiler connections
Boiler size
Safety valve connector
For permiss. operating
pressure
M82A
Boiler size
Boiler flow and return
For permiss. operating pres-
sure
Safety valve
For permiss. operating pres-
sure
Drain outlet
For permiss. operating pres-
sure
Tab. 9
M84B
Boiler size
Boiler flow and return
For permiss. operating pressure 6,
10 bar
Temperature spread
For permiss. operating pressure 16
bar
Temperature spread
Safety valve connector
For permiss. operating
pressure
*3 4-hole version
(cont.)
20 K PN25 DN
6 bar PN16 DN
10 bar PN16 DN
16 bar PN40 DN
6 bar
10 bar
16 bar
16 bar
6 bar
10 bar
10 bar
16 bar
6 bar
10 bar
16 bar
40 K PN16 DN
30 K PN16 DN
20 K PN16 DN
40 K PN25 DN
30 K PN25 DN
20 K PN25 DN
6 bar PN16 DN
10 bar PN16 DN
16 bar PN40 DN
3 4
300 350
100 125
80 100
65 80
1
150 150
PN16 DN
PN16 DN 150 150
PN25 DN
–
PN40 DN 150 150
50 50
PN16 DN
PN16 DN
–
PN40 DN 40 40
PN40 DN 32 40
PN40 DN 40 40
PN40 DN 40 40
PN40 DN 40 40
3 4
200 250
250 250
300 300
200 250
250 250
300 350
100 125
80 100
65 80
5 6 7
350 400 400
125 150 150
100 100 125
80 100 100
2 3 4 5
200 200 200
200 200 200
200 200 200
–
– – –
65 *3 65 *3 65 *3
50 50 65
– *3
– – –
40 40 50
40 40 40
40 40 40
40 40 40
5 6 7
250 250 300
300 300 350
350 400 400
250 250 300
300 300 350
350 400 400
125 150 150
100 100 125
80 100 100
8 9
400 450
2 x 2 x 125
100
125 150
100 100
6 7
250 250
250 250
250 250
– –
80 80
65 65
*3 *3
– –
50 65
40 40
40 40
40 40
8 9
300 300
350 350
400 450
300 300
350 350
400 450
2 x 2 x 125
100
125 150
100 100
13