VENTING OF THE INSTALLATION
1. Put the boiler control to heat demand.
2. Open all the radiator valves.
3. Run the installation up to about 80°C.
4. Switch off the electrical supply to the boiler.
5. Wait for approximately 10 minutes.
6. First vent the installation on all the vent points (boil-
er, radiators, etc.).
7. Check the water pressure and, if necessary, fill up to
design system pressure; entirely fill the filling hose
before connecting it to the installation.
TROUBLE SHOOTING
Before calling in the installing engineer, first check if:
- the gas cock is open
- the maximum operating temperature setting is high
enough
- the boiler control has been correctly set
- the main switch is on
- a sufficient water flow is possible (the radiator valves
are entirely opened)
- the water pressure is sufficient (> 0.8 bar).
Note down the failure message before resetting (3
digits, blinking and dots included). Reset the failure by
pressing the reset-key on the instrument panel. If the
boiler failure is immediately repeated, contact the
installing engineer, stating the failure message.
All manuals and user guides at all-guides.com
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8. Put the boiler into service again.
Repeat venting procedure, if necessary.
g Attention!
A poorly vented installation may cause water flow prob-
lems and air noise in the boiler, the pipe work and the
radiators.
g
Important!!
Do not forget that your central heating installation needs
servicing once a year.
g
Be aware of gas escapes
If you smell gas, close the (main) gas cock and contact
the emergency gas leak telephone number for your
area. DO NOT ISOLATE THE POWER SUPPLY TO
THE BOILER OR ANY OTHER APPLIANCE.