18
Pipe work
INS
TALLA
TION
English
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
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)
Hydro unit
Water Out
Strainer
Out of Indoor
Service ports for flushing
& purging
Heater Vessel
CAUTION
•
Check and clean strainer periodically.
•
Replace strainer when necessary.
•
It is 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)