Two independent circuits
One compressor for low temperature and one for medium: each with its own oil separator, liquid separator and control.
IMP-VM-01 · Commercial refrigeration · Greve in Chianti (FI) · for Benelli S.r.l.
Casa Caffè
Refrigeration you cannot see, in the heart of Chianti.
A custom-built refrigeration unit for the new bar at the Fattoria di Vignamaggio: two circuits in one machine, enclosed and quiet, hidden among the village’s stone walls.
1enclosed unit
LT + MTtwo circuits
20–90 Hzvariable-speed compressors
−30 °Clow-temperature circuit
25.10.25opening
The challenge
A historic village is not a plant room.
Casa Caffè needs refrigeration every day: low temperature (−30 °C) for frozen goods and medium temperature for counters, display cases and cold rooms. But the Fattoria di Vignamaggio is a historic estate of stone, terracotta roof tiles and courtyards where guests stroll.
It needed a single outdoor machine that could not be heard or noticed, weatherproof and easy to maintain. It did not exist on the market: so we designed and built it.
The solution
Two circuits, one machine
Variable speed
The compressors run from 20 to 90 Hz and follow the bar’s actual load: fewer starts, lower consumption, less noise.
Floating condensing
The on-board condenser has variable-speed fans: the pressure follows the outdoor temperature and at night the machine runs almost silently.
Enclosed and soundproofed
Anodised aluminium and polyurethane foam panels, lockable doors, condenser air grilles. The control panel has its own air-conditioned compartment.
PLC and our own software
Eliwell Advance series PLC with software written by us: automatic superheat and subcooling control, alarms with history, inverters driven over Modbus RTU.
Inside the unit
Tap the points to see what they do
- LT compressorVariable-speed semi-hermetic, serving the low-temperature loads down to −30 °C.
- MT compressorTwin of the first, it serves the medium-temperature counters, display cases and cold rooms.
- LT suction filterOn the low-temperature return line: it traps impurities before the gas re-enters the compressor. Replaceable cartridge with service port.
- Oil reserveSpare oil always ready: the level in the compressors is monitored and topped up automatically.
- Oil filtersOne per compressor, with shut-off valves and service port: the oil returns clean on every cycle and maintenance is done without emptying the system.
- Pressure gaugesPressures at a glance, even with the panel switched off.
- Pressure transducersThey measure the pressures for the PLC, which sets the speed of the compressors and fans.
- Safety pressure switchesThey stop the compressor if the pressure goes out of range, whatever happens to the software.
The site
From the workshop to the courtyard, in six months
Official Benelli S.r.l. partner · since 2024
A Benelli kitchen. We engineer the refrigeration.
Casa Caffè is a project by Benelli S.r.l. di Follonica, which designed the counter and the bar equipment. It entrusted us with all the refrigeration: sizing, building the unit in our workshop, PLC software, testing and commissioning.
Since 2024 we have been official partners of Benelli for the design and construction of the refrigeration systems serving their professional kitchens. For the customer, that means one project and one point of contact, from the kitchen to the refrigeration unit.
The method
Built and tested before it leaves
Every unit is born in the workshop: we assemble it, wire it and test the software on the bench. What arrives on site is an already verified machine that only needs connecting and commissioning.