Ariston Unvented Hot Water Storage Cylinders Water Heater User Manual


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7
RETURN
FLOW
SECONDARY
RETURN
COMBINATION
VAL
VE
EXPANSION RELIEF
PIPE
COLD
MAINS-IN
22mm
DRAIN
EXPANSION
VESSEL
PRESSURE + TEMPERATURE
RELIEF VALVE
ZONE
VALVE
HOT SUPPLY
22mm
TUNDISH
22mm
MAX. 100mm
FIG. 2.3
STI/STI PROTECH/ITI 125-150-210-300 INDIRECT
SECONDARY
RETURN
COMBINATION
VALVE
EXPANSION RELIEF
PIPE
COLD
MAINS-IN
28mm
DRAIN
EXPANSION
V
ESSEL
P
RESSURE + 
TEMPERATURE
RELIEF VALVE
HOT SUPPLY
2
8mm
TUNDISH
22mm
MAX. 100mm
FIG. 2.4
500 STD PR
O
TECH
RETURN
FLOW
SECONDARY
RETURN
C
OMBINATION
VALVE
EXPANSION RELIEF
PIPE
COLD
MAINS-IN
28mm
DRAIN
EXPANSION
V
ESSEL
PRESSURE + 
TEMPERATURE
RELIEF VALVE
ZONE
VALVE
HOT SUPPLY
28mm
TUNDISH
22mm
MAX. 100mm
FIG.
2.5
500 STI PROTECH
www.tradeplumbing.co.uk Call Sales On 08708034288
www.tradeplumbing.co.uk Call Sales On 08708034288
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