4 200 191 / 01
8
Check the neutralisation system (where
installed, see page 1)
Before commissioning the granulate
container is to be filled with the neutralising
granulate NEUTRALAT, as described.
Once a year or after consumption (dissolving) the
neutralisation system should be thoroughly cleaned,
i.e. rinsed with water. To clean the neutralisation
system please follow the instruction below.
Maintenance and checks
Maintenance and checks
The work operations described below are
normally carried out by the specialist at
the time of the annual maintenance.
However, carry out the following checks
in the course of the year and where
necessary, carry out the work described.
Checking the water level
If the system water pressure is low (read
from the pressure gauge), notify your
installer or refill with water.
Refilling the heating system
• Set the main SYSTEM switch to ”0”.
• The shut-off valves for the heating feed and return
must be open.
• The boiler filling and draining cock is accessible after
removing the front cover at the front of the boiler.
• Connect the filling cock to the water tap by a hose;
unscrew this after filling, to safely break the
connection.
• Note the water quality: Drinking water quality; the pH
value must not exceed 9.5.
• Fill with water slowly, check the water level at the
hydrometer or pressure gauge.
• Keep the bleed valves on the radiators open until air-
free water flows out.
• No chemical additives (inhibitors) or anti-freeze
agents are to be used in the boiler circuit.
Attention:
Never add cold water to the hot
heating system.
1. Take off the bottom front boiler cover (remove 2
screws) (on the UG-AM-c (200-350) take off the
bottom cover at the side.
2. Disconnect any condensate connectors (see page
1 for model without condensate lifting pump)
3. Pull out the granulate container.
4. Dispose of any residual granulate with the domestic
waste.
5. Clean the neutralisation system carefully, i.e. flush
out with water.
6. Fill up with new granulate.
The following quantities are required:
- For the UG-AM-c (50-150) – 9 kg of granulate
(3 bags)
- For the UG-AM-c (200-350) – 12 kg of granulate
(bags)
After removing the first wrapper, shake out the fine
dust resulting from transport. Then place the
granulate on the grid, respectively on the filter mat
of the granulate container and distribute it evenly.
7. Push the granulate container back in.
8. Reconnect the condensate connection.
9. Replace the boiler front cover (UG-AM-c (200-350)
bottom cover at the side).
