Logano G334X, Installation And Service Instructions Manual

Page: 27 / 40

7
Shutting down the heating system
Logano G334X – 6 720 811 237 (2014/05) 27
7 Shutting down the heating system
7.1 Normal system shutdown
Shutting down when using the aquastat
▶ Place the ON/OFF switch in the OFF position (

Fig. 36). This shuts
off power to the boiler and all of its components (e. g. burner,
temperature controller).
▶ Turn the gas valve ON/OFF knob clockwise to the OFF position
(

Fig. 31, page 23).
▶ Heed the aquastat documentation (

Shutting down).
▶ Shut off main gas supply.
Fig. 36 ON/OFF switch in OFF position
Shutting down when using the aquastat Logamatic 2107
▶ Switch OFF the ON/OFF switch on the controller ( 0 position). This
switches off the boiler with all its components(e. g. burner).
▶ Turn the gas valve ON/OFF knob clockwise to the OFF position.
▶ Heed the Logamatic 2107 documentation (

Shutting down).
▶ Shut off main gas supply.
Fig. 37 Shutting down heating system (with Logamatic 2107 control)
[1] ON/OFF switch
7.2 Emergency shutdown procedure
Inform the owner/operator of the procedure to follow in case of
emergency:
▶ Never put yourself at risk! Your own safety is paramount.
▶ Shut off gas supply!
▶ Shut off the heating system by means of the emergency shutoff
switch located outside the installation room or the appropriate
building fuse.
NOTICE: Risk of system damage due to freezing!
The heating system can freeze up in cold weather if it is
shut down for a longer period.
▶ Protect the heating system against frost when
temperatures below freezing are expected.
▶ With the controls switched OFF, drain the water from
the boiler, the DHW tank, the pipes of the heating
system and, as far as possible, from the DHW piping
at the lowest point of the system.
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Use the heating system emergency shutoff switch
located outside the installation room or the heating
system circuit breaker for emergency shutdown.
AU
T
190 160
140
1
2
0
1
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