ENGLISH-24
Pipe work
Flushing and air-purging
When lling 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 ushing 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 ushing unit with sucient 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 qualied representatives.
Unless ushing 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 ush the system for 4 hours minimum once a per annum.
• Use chemical cleaning agents(Begin with acid , nish 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