Vaillant GA100CS SERIES Installation And Service Manual page 6

ZONE VALVE
IIIIIII1
HEATING cl_curr GATE
DRAIN VALVES
CIRCUITS VALVES
* ZONE VALVE
© __
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t
vE_, _
VALVE
EXPANSION
TANK
AIR SCOOP
ASME PRESS.
_-_ REUEF VALVE
I
BOILER
t
t
'._ to.,_. _.
TO FAUCETS
& SHOWERS
ASMET&P
REUEFVALVE
DOMESTIC "-_
COLD WATER . - ..-
vALVE
DR/UN
VALVE
t
STORAGE TANK
* NOTE:- Zone valves
should be located in
the supply side of the
heating circuit as close
as is possible to the
three way valve. This
will minimize the chance
of waterhammePoocuring.
CAUTION: When storage tank is above 125°F a mixing valve should be installed
to minimize the chance of scalding.
F, i g. 2 - Typical Piping Arrangements