21
Torque settings M
a
*4
Closure
Dimensions
M
a
Handhole
100 x 150 mm M16
100 Nm
Headhole
220 x 320 mm M20
200 Nm
Manhole
320 x 420 mm M24
350 Nm
Tab. 8
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 waste water system
causes environmental damage.
Therefore cool the water to < 35
º
C beforehand.
If necessary, collect it in containers. If neces-
sary, consult the local environment authority.
1.
Shut down the burner.
2.
Close the shut-off valves in the oil lines (at the tank
and filter) or the gas shut-off valve.
3.
Isolate the system from the power supply.
4.
Close all valves.
Removing the burner (if required)
A
B
Fig. 1
1.
Remove the fuel supply line.
2.
If necessary, remove filler material.
3.
Undo screws
A
and remove the burner with
burner plate
B
.
!
Please note
The burner entry point or boiler doors can be
damaged by incorrect handling.
Ensure the burner and burner plate are not
canted on removal.
Use suitable aids/lifting gear.
Installation information "Insulation for burner
entry point", burner installation and service
instructions
*4
Under cold and hot conditions
Commissioning, inspection, maintenance
Commissioning the system
(cont.)
6152553
Summary of Contents for M22
Page 39: ...39 6152553 ...
