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CIRCULATION PUMP OPTION
Optional Circulating Pump Package comprising of:
•
A 25mm in-line circulating pump in cast bronze designed for secondary hot water circulation.
240V/1Ph/50Hz; IP44 canned motor with three speed setting option.
•
Pump is provided with unions, in-line strainer, isolation ball valves, check valve and integrated into
the system with required plumbing fittings.
TECHNICAL NOTES:
1.
Heaters must have 60
o
C or greater temperature setting with this option to prevent proliferation of
‘Legionella Bacteria’.
2.
Return piping sizing shall be sized in accordance to AS3500.4.
3.
No pressure limiting and other such pipe friction devices shall be installed in this return piping.
4.
If such devices are installed return water flow will be restricted and pump will starve of water resulting
in premature failure of the pump and is not covered under warranty.
5.
Dry running of the pump will cause irreparable damage to the pump and is not covered under
warranty.
6.
Power supply timer is required to turn off pump automatically at least four (4) times daily for five (5)
minutes minimum.
