ENGLISH-24
Pipe work
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)
3
G3 KIT
3-Way V/V
Backup
heater(2kW)
PWM
Pump
HX_PHE
Expansion Vessel(8L)
Flow
sensor
Pressure
Relief v/v
Air Vent
Manometer
Water in
Water out
Temperature &
pressure relief valve
Service ports for
flushing & purging
(Field supply parts)
Service ports for
flushing & purging
T_tank
Drain(Tundish)
T_w3
T_w2
T_w1
T_eva out
T_eva in
Booster
heater(3kW)
• 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 quality must be according to EN directive 98/83 EC .
CAUTION
