Shutting Down The System; Switching Off The Control Panel And The Burner; Shutting Down The System In An Emergency - Bosch Buderus SB625WS Operating Instructions Manual

8 | Shutting down the system

4 Shutting down the system
This chapter explains how you shut down your boiler and switch off the
control panel and the burner. Furthermore, it contains details on how to
shut down your heating system in an emergency.
NOTICE: Risk of system damage from freezing.
▶ The system can freeze up if it is out of service, e.g.
from a shutdown because of fault(s).
▶ Protect your system against frost damage where
temperatures below freezing are expected.
▶ Drain the heating water at the lowest point in the
system, using the boiler drain valve. To do this, open
a purge valve at the highest point in the system.
Contact the Technical Assistance Service if you
encounter any problems in completing the following
procedure.
▶ Shut off the fuel supply at the main fuel shut-off valve.
4.1

Switching off the control panel and the burner

Shut down your boiler via the control panel ( Fig. 3). The burner is
automatically shut down when the control panel is switched off.
▶ Set the ON/OFF switch ( Fig. 3, [2]) to "0" (OFF).
For further details on this subject, see the operating
instructions for the relevant control panel.
4.2

Shutting down the system in an emergency

Only in emergencies, switch off the system using the
emergency shutoff switch or by disengaging the heating
system circuit breaker.
In other dangerous situations, immediately close the main fuel shut-off
valve and the power supply of the heating system using the emergency
shutoff switch or by disengaging the heating system circuit breaker
( Chapter 1.2, page 3).
6 720 805 220 (2012/10) Stainless Steel Condensing Boiler - SB625WS / SB745WS