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modErnISatIon of oldEr bUIldIngS
Note
when modernising an oil heating
system with a heat pump, the older
oil boiler will frequently be used as
second heat source if the oil tank is
still quite full. this would represent
a dual-mode heat pump system,
making the flue gas inspection for the
oil boiler superfluous. However, in
such cases the dual-mode operation
is just a temporary solution. After
using up the stock of oil, the oil boiler
should be removed and replaced by
the electric booster heater integrated
into the heat pump (mono-energetic
operation). Apart from the space-
saving benefit arising from the
removal of the oil boiler system, the
heating operation would also be
more economical. the running costs
for maintaining the oil combustion
system and the sweeping of the
chimney frequently exceed the energy
costs of the heater rod.
Hydraulic connection
the hydraulic connection is made
as for a new build, if no dual-mode
system with an oil or gas boiler is
envisaged. Dual-mode systems in
which an oil or gas boiler should
be operated for a limited period are
connected hydraulically so that they
can later be dismantled without
having to drain the entire system.
After removal, the heat pump system
will be operated in mono-energetic
mode. the figure to the right shows
the layout of a dual-mode heat pump
system with oil or gas boiler.
Power connection
the power connection of the heat
pump requires two additional meter
spaces in the domestic distribution
board for the heat pump meter and
the ripple control receiver.
in most cases, since the existing
distribution panel lacks the required
space, allow for the panel to be
replaced with a larger one or
supplemented by an additional
distribution panel. this should be
applied for and agreed with your local
power supply utility.
Dual-mode air | water heat pump system
Dual-mode air | water heat pump system
Summary of Contents for Heat pumps
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