8
Installation / maintenance
Connections
Venting
Safety flow
Flue pipe connection
Draining, filling
Boiler flow
Boiler return
Connect the heating flow and return to the respective boiler fittings. For connections,
see above.
Install a check valve behind the boiler circuit pump(s) to prevent incorrect circulation.
Install a safety equipment assembly.
The pipework between the boiler and the safety valve must not be able to be shut off.
Connect underfloor heating via a four-way mixer.
Provide system separation by means of a heat exchanger, when using pipes which are
not impermeable to oxygen.
The boiler and central heating system may only be filled, if a type-tested safety valve
(opening pressure max. 3 bar) has been installed at the "ventilation“ connection of the
boiler.
Install a filling/drain valve to fill the central heating system at the "drain, filling“
connection, and connect a water hose.
Observe the pressure gauge in the safety equipment assembly when filling the system
with water.
Check the safety valve function.
Ventilate the boiler (automatic air-vent valve).
Shut down the heating system and let it cool down.
Open the drain valve on the boiler.
Open the radiator bleed valves.
Pipework
Central heating boiler
Filling the heating system
Draining the heating system
Please note:
Summary of Contents for MKS 140
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