Lampoassa ELI 60-90, User Manual

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6
USER MANUAL
100% GEOTHERMAL HEAT
peratures lower than those of domestic hot water. The storage tank
temperature levels are controlled by an adjustment curve – thus, at ordi-
nary heating circumstances, the temperature varies depending on the
heating need. In such cases, the system operates in so-called ‘floating
condensing’ mode. Heat distribution can be arranged using water circu-
lation-based floor heating, hot water radiators or air heating. The best
coefficient of performance is achieved by floor heating, since the lower is
the temperature of heat release, the better is the coefficient. Domestic water is heated within a COIL (7) inside the storage tank,
which is divided into two parts. The domestic water is pre-heated in the
coil located at the storage tank’s lower part, while final heating takes
place inside the coil located at the tank’s upper part. In general, domes-
tic water temperature must exceed that of the heating water. Owing to
the two-stage heat release of the superheating technology, the larger
storage tank section heating the supply water can be kept at a lower
temperature, since final heating of the domestic water takes place using
the upper storage tank section of higher temperature. In such a case, the
Solution with separate storage tank with intermediate floor:
Solution with separate storage tank:
Condenser Superheater
Evaporator
6a.Upper storage tank
6b. Lower storage tank
7.DHW
coils
Heating circulation
Separate storage tank Ground source heat pump
2. Compressor
5. Expansion
valve
Brine
circuit out
Brine
circuit in
4.
3.
1.
Heating circulation
Ground source heat pump
Brine
circuit out
2. Compressor
5. Expansion
valve
Separate storage tank
Brine
circuit in
Condenser Superheater
Evaporator
6. Storage tank
7.DHW
coils
4. 3.
1.