Installation guide

Ascari MA12 -p. 3 -
1 - INSTALLATION & CONFIGURATION
1.1 - Quick reference Guide
1. It is recommended that the boiler be connected to a 10hour or similar off-peak tariff that provides some
daytime off-peak hours.
2. Where the off-peak tariff is restricted a changeover relay should be used to switch power to the boiler
when the off-peak supply is not available.
3. Fill the system with water prior to turning on the electrical supply to the boiler.
4. Ensure the system is flushed thoroughly before letting any air/water exit through the pressure relief valve
(dirt can prevent the valve closing).
5. Check the system is full by turning the pressure relief valve cap, and check water exits correctly through
the discharge pipe.
6. A manual pressure gauge should be used to check the system pressure when cold. The pressure should
be set between 1 bar & 1.5bar. Note all air should be removed from the system before measuring the
system pressure.
6a Alternative with the electric supply off, the yellow bridge between terminals 10 and 11 may be removed
before filling the system for the final time ( this prevents the elements turning on) and the boiler pressure
gauge used to set the cold system pressure. Once set to 1-1.5bar, the boiler should be switched off and
the yellow bridge returned to its position between terminals 10 & 11.