Installer reference guide / Mono tank integrated type 69
Flushing
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 outdoor unit, flush water pipes clean to remove contaminants during hours using a
flushing unit or tap water pressure if it is adequate (at 2 to 3 bar).
3
3WAY VALVE
Backup
heater(2kW)
PWM
Pump
Expansion Vessel(8L)
Flow
sensor
Pressure
Relief
valve
Air Vent
Manometer
Water in Water out
Temperature & pressure
relief valve
Drain(Tundish)
T_tank
T_w3
Booster
heater(3kW)
Service ports for
flushing&purging
(Field supply parts)
S
ervice ports for
flushing&purging
Flushing unit
(or purging cart)
CAUTION
• Check and clean strainer periodically.
• Replace strainer when necessary.
• It's recommended that you flush the system for 4 hours minimum once 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.
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