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Shutting down the heating system
6 720 648 162 (2011/08)
8
Shutting down the heating system
8.1
Shutting down normally
B
When using ext. aquastat/control: Shut off main
heating system by turning off the emergency shut-off
switch (position "OFF"). This switches off the boiler
with all its components.
B
Further shut-down procedure
Æ
refer to aquastat/
control documentation.
Fig. 60 Heating system emergency shut-off switch
B
Shut off fuel supply by closing main valve.
8.2
Shutting down the heating system in
an emergency
What to do in an emergency
Explain to the customer what to do in an emergency, e.g.
a fire.
B
Never put yourself at risk of fatal injury. Your own
safety must always take the highest priority.
B
Shut off fuel supply by closing main valve.
B
Disconnect the heating system from the electrical
power supply by means of the emergency shutoff
switch or the heating system circuit-breaker.
CAUTION:
Risk of system damage from
freezing.
If the heating system has been switched off,
it may freeze up in cold weather conditions.
B
Leave the heating system switched on as
long as possible.
B
Protect a disabled heating system from
freezing by draining the heating system
and hot water pipes at the lowest point.
7 747 019 141-35.1RS
Use the heating system emergency shut-off
switch located outside the boiler room or
the heating system circuit-breaker for
emergency shutdown.