elco TRIGON L PLUS - Page 50

50
Filling the system
The central heating installation needs
tobelledwithpotablewateraccording
to the requirements in chapter ‘Water
quality’.Whentheboilerhasbeen
electrically commissioned, then the
heatingsystemcanbelled.Forlling
or topping up the installation use the
following procedure:
1. Connectallingtaptothereturn
of the hydraulic circuit and open it.
2. Connect a hose on the manual
deaerator (A) and open it to
remove the air.
3. Close the manual deaerator
when water is constantly coming
out from it.
4. Slowlyllthecentralheating
systemupto1.5–2bar,Digital
pressure reading is shown in the
middle of the Home screen.
5. Closethellingtap.
6. Vent the entire heating installation
starting at the lowest point.
7. Check the water pressure and top
upifnecessaryto1.5–2bar.
8. Disconnectthellingtapfromthe
hydraulic circuit.
Whenpoweringuptheboileran
automatic air purge program will run
toventtheboiler(‘Airpurgeactive’).
This will last for approximately 7
minutes. During this program the
pressure in the central heating needs
tobechecked,andwhennecessary,
topped up again.
It may take some time before all the
air has disappeared from a lled
installation. Certainly during the
rst week sounds may be audible
that indicate air. The automatic air
vent (B) in the boiler will let this air
escape, causing the water pressure
to drop during this period and water
will need to be relled again.
Hot water supply
Fillthehotwatersupplybyopeningthe
cold mains isolation valve.
Bleedthehotwaterinstallationby
opening all hot water taps one at a
time. Leave each tap to run until all air
has disappeared from the supply.
Flush with a minimum of 10 litres to
rinse any residual contaminants from
thehotsupplyandboiler.
Installation
Filling the system
25/03/19 09:00
–10
°
1.5 bar
CH Pump Overrun
1 2
T10
BMS
32
°
A
B