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2.11.5 Balancing
Hydraulic balancing is very important because it will ensure the flow necessary to each
satellite. The system balancing valves shall be automatically adjusted and set by the two-
way valve on the ModuSat TP primary circuit according to the desired setting.
The same valve also stops primary circulation when there is no request for domestic hot
water or request for heating. Operation by closing the primary circulation circuit (in
particular in summer) results in energy saving by limiting the losses of the primary
education circuit
2.11.6 Maximising the performance of the ModuSat TP installation
The collective heating systems producing centralised hot water require the operation in
circulation, of the recycling loop all year long.
The ModuSat TP, which removes the domestic loop, nevertheless requires the operation
in circulation of the primary circulation loop in summer.
In order to reduce the energy consumption, the primary circuit will have to be perfectly
isolated and its temperature could be lowered to 70°C, for the summer period. The water
flow feeding each ModuSat cannot be lower than 800 l/h in order to satisfy the needs for a
bathroom.
The assembly on the ModuSat TP of the 230V energy cut off valve will also have the
advantage of reducing the thermal losses of the primary circuit particularly during the
summer and of thus improving the total efficiency. The energy cut off valve limits the
primary circulation of the horizontal distributions to the hours of use of hot water and
thermal maintenance of the PHE (i.e. a few hours per day).
The boiler room can profit from the systems of regulation and programming. Nevertheless,
the temperature of the primary circuit will not be lowered under 70°C, in order to ensure a
production of satisfactory domestic hot water on demand.
The small units will be able to satisfy an individual regulation of the boiler, which will
maintain the constant primary temperature.
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