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RTC 6i - www.regulus.eu
2. CONNECTION VARIANTS
The heat pump is part of the energy system of the house. The correct design of a heat pump
depends on the energy needs of the building and should be carried out by a specialist. These
methods of connection are the most commonly used and serve as a basis for the project. If project
documentation exists, follow it.
For system control, it is necessary to use an
IR 14 RTC
smart controller which controls the
entire heating and hot water system. It is equipped with an integrated web server permitting
control through a web browser, or via a smartphone or tablet with the IR Client application
(for Android and iOS).
2.1.
Direct connection to a heating system, DHW heating in a hot water storage tank
The accessory is represented by RegulusBOX or an
additional heat source in the form of an in line heater
(code 16166) equipped with an electric heating element
of up to 7.5 kW output and an optional indirect heated
hot water storage tank with a heat exchanger surface of
min. 1.0 m
2
(e.g. Regulus RDC 200 – code 12758). The
larger the heat exchange area of the HW storage tank,
the faster the DHW heating will be and the heat pump
will be able to prepare hot water more economically, or it
will be able to heat DHW to a higher temperature. In this
direct connection to the heating system, it is necessary
to keep the minimum flow through the heat pump at the level of
min. 680 l/h
with sufficient heat
supply for defrosting, i.e. it is necessary to have a part of the heating system without shut-off valves
installed, e.g. thermostatic valves. Approximately it is at least 5 radiators of normal size (e.g. 0.6 x
0.9 m), or at least 30 m
2
of underfloor heating without the possibility to be shut off.
2.2. Connection with a thermal store (combination with other renewable heat sources)
The accessories consist of a thermal store for heating only
(Regulus PS series), or a combination thermal store with
immersed DHW tank (Regulus DUO series), or a thermal store
with continuous hot water heating in a stainless steel DHW heat
exchanger (Regulus HSK serie
This connection is suitable for combining a heat pump with other
heat sources, such as biomass boilers, fireplace inserts and
stoves with a hydronic heat exchanger, solar thermal systems,
solar photovoltaic systems, etc. The thermal store shall be sized
depending on the selected type and output of the combined heat
source, e.g. for combination with PV panels, the total volume of
the thermal store can be calculated using the relationship 180 l / 1 kWp PV output. For example, for
an array of PV panels with a peak output of 5 kWp, the tank volume shall be 900 litres. Always have
the size and type of the thermal store determined by a specialist!
2.3. Heating system used for cooling
RTC 6i heat pumps also allow cooling of buildings. If cooling operation is used, all tanks and chilled
water distribution systems must be vapor-insulated. If there are also space heating elements in the
building that are not suitable for cooling (radiators, heated towel rails, etc.), it is necessary to ensure
that these circuits are shut off to prevent undesired condensation.
