Installation manual

E-17
ENGLISH
Pipe work (Continued)
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. Preparation of a 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.
 Check and clean strainer periodically.
 Replace strainer when necessary.
 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)
Water Out Water In
Heater Vessel
Strainer
Hydro unit
Out of Indoor
Service ports
for flushing & purging
Flushing unit
(or purging cart)