Ariston ST 100 ProTech - Page 10

SECONDARY
RETURN
COMBINATION
VALVE
EXPANSION RELIEF
PIPE
COLD
MAINS-IN
28mm
DRAIN
EXPANSION
VESSEL
PRESSURE + 
TEMPERATURE
RELIEF VALVE
HOT SUPPLY
28mm
TUNDISH
22mm
MAX. 100mm
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10
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SECONDARY
RETURN
COMBINATION
VALVE
EXPANSION RELIEF
PIPE
COLD
MAINS-IN
22mm
DRAIN
EXPANSION
VESSEL
PRESSURE + TEMPERATURE
RELIEF VALVE
HOT SUPPLY
22mm
TUNDISH
22mm
MAX. 100mm

%&
$&
COMBINATION
VALVE
EXPANSION
RELIEF
PIPE
COLD
MAINS-IN
15/22mm
EXPANSION
VESSEL
PRESSURE + TEMPERATURE
RELIEF VALVE
HOT SUPPLY
15/22mm
TUNDISH
15mm
22mm
MAX. 100mm
DRAIN
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RETURN
FLOW
SECONDARY
RETURN
COMBINAT IO N
VALVE
EXPANSION RELIEF
PIPE
COLD
MAINS-IN
22mm
DRAIN
EXPANSION
VESSEL
PRESSURE + TEMPERATU RE
RELIEF VALVE
ZONE
VALVE
HOT SUPPLY
22mm
TUNDISH
22mm
MAX. 100mm

%& 
$&
NOTE: FLOW AND RETURN PIPES MAY BE CONNECTED IN REVERSE
TO THAT SHOWN IN THE DIAGRAMS FOR INDIRECT CYLINDERS
.