Saunier Duval Themaclassic F30E Instructions For Use Installation And Servicing page 28

To Drain the Domestic hot water circuit (F30E Only)
• Close boiler isolating valve (c).
• Turn on one or more hot water taps.
To Drain the boiler
• Close isolating screws on the isolating valves (b), (c) and (d) turn from vertical
to horizontal to close.
• Open the boiler drain valve (a).
• (F30E Only) Turn on one or more hot water taps.
(b)
HEATING
RETURN
Note: Isolating cocks water and gas are shown in the: OFF position
F30E shown
4000122704-1
17 Routine Cleaning and Inspection
(c)
COLD WATER
IN (F30E Only)
Diagram 17.3
BOILER DRAIN VALVE
(d) DOMESTIC HOT
WATER OUT
HEATING
(F30E Only)
FLOW
28
(a)
GAS SERVICE
COCK
Diagram 17.2
F30E shown Diagram 17.4