Commissioning The System; Shutting Down The System; Removing The Burner (If Required); Opening The Boiler Door(S) - Viessmann Vitomax HW Series Operating And Service Instructions

Commissioning the system

Tightening torques M *4
a
Cover Dimensions
Handhole 100 x 150 mm M16
Headhole 220 x 320 mm M20
Manhole 320 x 420 mm M24
Tab. 7

Shutting down the system

Danger
Risk of injury when opening pressurised boiler
flue connections.
Do not open boiler flue connections until they
are depressurised and have cooled down.
!
Please note
Draining hot water into the sewage system cau-
ses environmental pollution.
Therefore cool the water to < 35
If necessary, collect it in containers.
1. Shut down the burner.

Removing the burner (if required)

B
A
Fig. 1
1. Remove the fuel supply line.

Opening the boiler door(s)

B
A
Fig. 2
Under cold and hot conditions
*4
Commissioning, inspection, maintenance
(cont.)
M
a
100 Nm
200 Nm
350 Nm
2. Close the shut-off valves in the oil lines (at the tank
and filter) or the gas shut-off valve.
C beforehand. 3. Isolate the system from the power supply.
°
4. Close all valves.
2. Undo screws
burner plate
!
Undo screws
and remove the burner with
A
.
B
Please note
The flame tube may be damaged if it comes
into contact with the burner or door.
Ensure the burner and burner plate are not
canted on removal.
Use a suitable tool/lifting apparatus.
Installation information "Insulation for burner
entry point", burner installation and service
instructions
A and open boiler door(s) B .
17