Filling A Sealed Water System; Water Makeup - Saunier Duval Xeon 50ff Instructions For Use Installation And Servicing

3.16 Filling a Sealed Water System

Provision for filling the system at low level must be made. Three
methods are shown in diagram 3.6. There must be no permanent
connection to the mains water supply, even through a non-
return valve.

3.17 Water Makeup

Provision must be made for replacing water lost from the
system. A make up vessel mounted above the highest point of
the system and connected through a non-return valve to the
system on the return side of either the hot water cylinder or
heating system, see diagram 3.5.
Alternatively provision for make up can be made by a filling loop.
221658B
3 Water Systems
METHOD 1
TEMPORARY
HOSE
SUPPLY
PIPE
METHOD 2
TEMPORARY
HOSE
SUPPLY
PIPE
METHOD 3
CISTERN
SUPPLY
STOP VALVE
SUPPLY
PIPE
12
COMBINED
CHECK VALVE
AND VACUUM
BREAKER
SERVICING
HOSE
VALVE
UNIONS
SUPPLY STOP
VALVE
DOUBLE CHECK
VALVE ASSEMBLY
SERVICING
HOSE
VALVE
UNIONS
SUPPLY STOP
VALVE
OVERFLOW
PRESSURE
SERVICING
REDUCING
VALVE
VALVE
HOSE
DOUBLE CHECK
UNIONS
VALVE ASSEMBLY
0051M
HEATING
SYSTEM
HEATING
SYSTEM
HEATING
SYSTEM
Diagram 3.6