Demir Dokum Adonis B24, Instructions For Use Manual

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Depending on demand, water in the primary hydraulic circuit is diverted to either the central heating
system or internal circulation for heating the D.H.W. through the secondary heat exchanger via an electric
motor driven three port valve situated on the boilers hydraulic block.
6=)E*7
When hot water demand is requested the boiler will fire automatically. An integral pump is then energized
and hot water from the boiler’s primary circuit is circulated through the secondary heat exchanger,
allowing the instantaneous transfer of heat to the incoming cold water. The secondary heat exchanger is
protected against an internal build up of lime scale by limiting the hot water temperature at the tap to a
maximum 64°C. Hot water will continue to flow through the tap until no longer required. When the
demand for hot water ceases the integral pump may continue to run for a short while to dissipate any
excess heat within the boiler.
6=)E7;)5*7
When heating demand is requested the boiler will fire automatically. An integral pump is then energized
and hot water from the boiler’s primary circuit is circulated around the heating systems, pipe-work and
radiators. The heat output from the boiler is automatically adjusted by the boiler’s internal control unit to
match the heating demand. As the water temperature of the heating system increases the gas input to the
burner decreases, conserving energy and increasing efficiency. When the demand
for heating no longer exists either the room thermostat is satisfied or the heating period has ended, the
burner will shut down and the boiler will revert to stand-by, waiting to respond to the next heating
demand. The integral pump may continue to run after shut down for a short while to dissipate any excess
heat within the boiler.
Please Note. When domestic hot water is called for during the heating mode, the boiler will automati-
cally revert to domestic hot water mode until the demand for hot water ceases.