Preparing For The Control Unit Installation; Equipment For Control And Limitation; Connections On The Flue Gas Side; Mounting The Flue Pipe - Viessmann Vitomax LW M64 Installation Instructions Manual

Fitting the measuring and control equipment

Preparing for the control unit installation

Vitocontrol boiler control unit as accessory:

Equipment for control and limitation

For boilers with Vitocontrol control panel:

Connections on the flue gas side

Danger
Leaks can result in poisoning through escaping
gas.
Check unused boiler apertures and gas lines for
tightness. Reseal if required.

Mounting the flue pipe

Ø10
Ø D
Fig. 13
1. Connect the flue outlet to the flue system using a
flue pipe, ensuring favourable flow characteristics.
2. Position the test port (approx. 10 mm
stream of the flue outlet, at a distance of 2 to 3
times the flue pipe diameter.
Flue pipe external diameter
Boiler size
M148 mm
*4
M62C mm
*5
M64B mm
*6
M82A mm
*7
M84B mm
*6
External 7 internal 7
*4 =
*5 External 7 internal 7
=
External 7 internal 7
*6 =
*7 External 7 internal 7
=
) down-
7
1 2 3
192 242 242
392 392 440
790
–
346 392 392
790
–
8 mm, for sizes 6 - B internal 7
+
8 mm, for sizes 3 - C internal 7
+
10 mm
+
8 mm, for sizes 4 - 7 internal 7
+
(cont.)
"Vitocontrol" technical documentation
"Vitocontrol" technical documentation
3. Seal the flue pipe.
Note
Connect all flue pipes free of load and torque
stress. The flue pipe connections must be made
gas-tight.
4. Insulate the flue pipe.
Note
A flue gas flange with mating flange is optionally
available.
4 5 6
272 346 400 450
440 490 490 550
790 890 990 990
440 490 550 620
790 890 990 990
10 mm
+
10 mm
+
10 mm
+
7 8 9 A
500 550 600
550 620 620
1110 1110
–
1110 1110
B C
650
–
700 700
–
–
15