Heat Source; Brine Surfaces Collector; Description; Application Range - IDM-Energiesysteme TERRA 5 S/W H Technical Documentation And Installation Instructions

5. Heat source

5. Allgemeine Informationen
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5 .1 . B r i ne S u r fa ce s C o l l e c to r
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5 .1 . 1. D e sc r ip t io n
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With this system, plastic pipes, Ø25 x 2.3 mm, are
laid in the soil with a length of 100 m each for heat
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absorption. Multiple pipework circuits may be required
depending on the heat pump size. The brine medium
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circulates through these pipes. The heat exchange
between the brine medium and the refrigerant takes
place in the evaporator set (stainless steel plate heat
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exchanger).
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The following is required to connect the brine circuit:
brass distributors with shut-off valves, safety valve,
8 pressure gauge, expansion vessel, thermometer and
brine circulation pump. The fl exible connection hoses
provided must be installed to prevent the transmission
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of noise. The connection lines between the distributor
and heat pump must be set up on-site however no
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zinc-plated pipes may be used.
The mixing ratio of the brine medium must be selected
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up to -15°C (= 30% proportion of antifreeze). If too
much antifreeze is added the specifi c heat content of
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the brine medium drops.
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Caution! In the case of the circulation pump, the elec-
trical conduit box must not be positioned downwards.
The pump head (Motor) must not be insulated.
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Brine/groundwater
inlet
Brine/groundwater
outlet
Installation TERRA S/W
5 . 1 .2 . A pp l i ca ti on r an ge
Suitable for all heat pumps type TERRA .. S/W(H).
In many countries, geothermal utilisation
must be approved by the water authori-
ties. The relevant application should be
made on time.
5 . 1 .3 . Sc op e of de l i v e r y
- Plastic piping Ø 25 x 2.3 mm in rings for each
100 m, number of rings depends on the heat pump
performance.
- Connection unit with
• Flow and return distributor with shut-off valve for
each circuit
• Safety valve
• Pressure gauge
• 2 thermometers
• Expansion vessel
• Brine circulation pump
Notes:
- Only antifreeze approved by IDM-Energiesysteme
GmbH may be used.
- Brine circuit lines must be provided with steam
diffusion-tight insulation in the event of the forma-
tion of condensation and the accumulation of ice
(e.g. Armafl ex).
- Brine circuit pump and brine circuit expansion ves-
sel must be positioned on the heat pump inlet side
(warm side).
- The brine circuit expansion vessel must be con-
nected from the brine line upwards.
- When fi lling the brine circuit with antifreeze mix, the
expansion vessel must be fi lled (due to a reduction
in volume during cooling when in operation).
T
H E P O W E R F A M I L Y
(C) IDM ENERGIESYSTEME GMBH