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Flushing and air-purging
When filling water, the following start-up procedure should be followed .
1 . All system components and pipes must be tested for the presence of leaks .
2 . Make-up water assembly or Flushing unit is recommended for installation and service .
3 . Before connecting pipes to the hydro unit, Flush water pipes clean to remove contaminants during 1 hours using a
flushing unit or tap water pressure if it is adequate (at 2 to 3 bar)
4 . Fill water into the hydro unit by opening service valves .
5 . Purge the air . (Fill with a flushing unit with sufficient capacity: avoid aerating the water)
6 . Circulate for long enough to ensure that all air has been bled from the complete water piping system .
After installations, Commissioning should be performed by qualified representatives .
Unless flushing and air-purging works are performed adequately, It might result in malfunctions .
Flushing unit (or purging cart)
• Check and clean strainer periodically .
• Replace strainer when necessary .
CAUTION
• Its recommended that you flush the system for 4 hours minimum once a per annum .
• Use chemical cleaning agents(Begin with acid , finish with alkali) .
• Install Air vents on the top of the system
• Pressure of entering water(over 2 . 0 bar)
Heater Vessel
Water Out
Service ports for flushing &
purging
ENGLISH-17
Hydro unit
Strainer
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