Atag iC 24, Инструкция по установке и обслуживанию

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Installation & Servicing instructions ATAG iC-Range
34
11 Filling system
The central heating installation needs to be fi lled with potable water according to the requirements in chapter
9.3 'Water quality'. For fi lling or topping up the installation use the fi lling loop according to the following
procedure (see fi gure 11.a):
1 Attach the fi lling loop pipe to the fi lling loop assembly (between position 1 and 2);
2 Open the fi lling loop valves A and B;
3 Slowly fi ll the central heating system up to 1.0 – 1.2 bar;
(at the bottom left a pressure gauge indicates the water pressure in the central heating system)
4 Close the fi lling loop valves A and B;
5 Vent the entire heating installation starting at the lowest point;
6 Check the water pressure and top up if necessary to 1.0 – 1.2 bar;
7 Check the fi lling loop valve is closed;
When powering up the boiler (described in chapter 13) an automatic de-aeration program will run to vent the
boiler. 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 fi lled installation. Certainly during
the fi rst week sounds may be audible that indicate air. The automatic air vent in the boiler will let this
air escape, causing the water pressure to drop during this period and water will need to be refi lled
again.
Always remove the fi lling loop pipe after fi lling or topping up the heating system and close the
connections with the cap nut (3).
11.1 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.
1
2
A
B
3
Figure 11.a