Lampoassa VMI 6-17 Instructions For Use, Installation And Maintenance Download

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100% GEOTHERMAL HEAT

USER MANUAL

Use the button in the bottom left corner to return to the home screen. Use the arrow button in the bottom right corner to return to previous screen.

For instructions screen, press the ‘i’ button in the top right corner. In case of operation faults, an alarm button is displayed on the top bar.

heated by using superheat removal heat exchanger (superheater 3) by
the extremely high thermal energy acquired from the compressor. Hot
superheating energy is stored for final heating of domestic hot water. If
required, the high thermal energy can also be transferred to the heating
system from the top storage tank.

The LOWER STORAGE TANK (6b) stores the thermal energy required for
central heating from the condenser (4) at heating network-adjusted tem

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 (7a and 7b). The domestic water is pre-
heated in the coil located at the storage tank’s lower part (7b), while final
heating takes place inside the coil located at the tank’s upper part (7a).
In general, domestic water temperature must exceed that of the heating
water. Owing to the two-stage heat release of the superheating technol

ogy, 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 process operation temperatures remain as low as possible,
which improves the system’s annual efficiency. Division of the coil into
two parts allows heating of the domestic water circulation only using the
upper storage tank coil, so that blending of the storage tank temperature
stratifications is avoided.

2.2 ÄssäCooling cooling system

A passive cooling system can be installed into the heat collection circuit,
in which case the fluid in the circuit is circulated through an additional
heat exchanger. The heat exchanger releases cooling energy to indoor air.
Such exchangers include radiant cooling units provided within the venti

lation system or fan coils installed indoor. The Lämpöässä product family
includes wall and ceiling-mounted fan units for cooling, complete with
installation set. Passive cooling is a favourable approach to cooling, since
the only running costs are associated with water circulation pump and
cooling fan operation. Vmi series heat pumps are equipped with factory

installed cooling connections rendering installation effortless. The cool

ing connections are equipped with plugs; one of them is provided with a
connector for the pump included under the installation set.

2.3. ÄssäSolar solar heating system

There are pre-installed additional heating connections located in the top
section of Vmi series hot water storage tanks. These allow easy connec

tion of a solar heating system directly
to the heat pump’s storage tank.

The

ÄssäSolar

collectors

Lämpöässä operate at excellent effi

ciency. This allows efficient conver

sion of free solar energy for heating of
the building and domestic water alike.

3. How to use the equipment

3.1. Control system functioning

ÄssäControl by Lämpöässä is a logic-based control system. It considers
the conditions prevailing in the premises and the surrounding environ

ment with improved precision. ÄssäControl control system adjusts the
heating network supply water temperature proceeding from the storage
tank and outdoor temperature based on a seven-point adjustment curve,
so that the room temperature remains pleasantly even regardless of out

door temperature variations.

Depending on the connections, the control system controls 1-3 heat
distribution circuits or 1-2 heat distribution circuits and domestic hot
water temperature. With the help of the ÄssäControl control system, it is
also possible to control a heat source external to the geothermal heat
pump unit.