Compact hydraulic module for the management of a direct circuit, a mixed circuit and the production of domestic hot water (DHW)
"Logico" is an innovative hydraulic module that allows to manage a direct heating circuit and mixed heating circuit as well as the production of domestic hot water. |
 |
The particular circulation of the hydraulic fluid inside the module ensures its return to the source of energy at very low temperatures: "Logico", combined with a condensing boiler, heat pump or solar thermal system, ensures in a simple way the immediate maximum energy efficiency of the complete system.
Logico is easy to install: it is fully assembled and the control unit is already pre-wired. A connecting box facilitates the electrical connections of the external components to the module. The functions of each circuit can be set-up from the room, using a stylish programmable room thermostat (optional) equipped with a capacitive touchscreen.
The heat generator is directly connected to "Logico" neither the distribution manifold nor the hydraulic separators or additional circulators is necessary.
"Logico" works with a single circulating pump.
Further benefits:
- Specific isolating valve between primary and secondary allows an easy maintenance for all the components of the group without having to empty the circuit;
- Overpressure balancing valve integrated in the direct circuit;
- High efficiency circulating pump with variable ∆p to control the differential pressure or progressive control for the constant speed;
- Logico is installed vertically with hydraulic fluid circulation from bottom to top or vice versa; in this case, the control unit can be rotated by 180°.
Centre distance: 90 mm to the circuits; 125 mm to the generator.
EPP insulation box (Dimensions: 400x516x180 mm).
A special back plate allows a quick fitting to the wall.
PN 6, max temperature 95°C.
External connections: 1” Female.
FIELD OF UTILIZATION:
Maximum total power: 35 kW.
Direct circuit:
Maximum power of 35 kW (with ∆t 20 K) and a maximum flow of 1510 l/h.
Kvs value: 5,0
Mixed circuit:
Maximum power of 12 kW (with ∆t 8 K) and a maximum flow of 1300 l/h.
Kvs value: 4,0
DHW circuit:
Maximum power of 35 kW (with ∆t 15 K) and a maximum flow of 2010 l/h.
Kvs value: 10,0
Hydrulic scheme and components
Requirements: the source of heat must be equipped with circulating pump. Otherwise, the "Logico" controller can manage an external circulator, with the support of an additional sensor.
Mixing valve with servomotor
3-way mixing valve with double admission, "Logico" type
Main advantages:
- Efficient use of return energy from the direct circuit (first admission) or, when needed, directly from the power source (second admission);
- Linear mixing over the entire adjustment range;
- Internal by-pass;
- Very small pressure loss: Kvs 7,0;
Proportional actuator with 90° working angle. Manual operation selector. A special connector allows the servomotor to be replaced in the case of failure or malfunction, without work on the electrical wiring.
|
 |
Circolating pump Wilo Yonos Para RS 15/6 RKC
High efficiency circulating pump with variable ∆p to control the differential pressure or progressive control for the constant speed. In compliance with European Directive 2009/125/CE. Low energy consumption from 3 W to 45 W.
"Logico" Climatic Controller
Climate control with a large LCD screen to manage the selected hydraulic system.
- Pictogram of the selected hydraulic system with proof of the state of the relay's activities: circulating pump, mixing valve in opening or closing, diverting valve for the DHW and energy demand at source. Two selectable hydraulic systems: with or without DHW management;
- Display sensor temperatures: external, supply calculated and detected for each circuit, room temperature (when °Caleon optional room units are installed). Day or night operation;
- Possibility of controlling a circulator, if not available in the heat generator (with an additional sensor, not included: Code TT/P4);
- Adjustment of the temperature curve with a linear or broken slope and related day-night correctors for each circuit;
- Protective function: anti-lock for the circulator, anti-freeze control, and minimum or maximum temperature of the supply;
- Up to 3 slots can be set on a daily basis: active heating circuit in day mode or night reduction;
- Optional room unit °Caleon (for one or two circuits)

Hydraulic scheme with DHW |

Displaying the temperature of the sensors |
The control unit is supplied pre-wired with the following sensors (Pt1000):
- Power supply with Schuko plug;
- Circulator control cable with Molex connector;
- Servo motor control cables with automat connectors;
- Supply and mixed circuit temperature sensor TR/S0,5;
- Cable with external connecting box for: outside sensor TA/55, DHW water tank sensor TT/P4, boiler contact 0-10V or dry contact;
- °Caleon room unit (optional), power supply 24 VDC (output).
|
 |
Schematic layout of a system controlled by Logico pump unit with DHW

Code: 2031052ACS-Y6-LH
Code without DHW: 2031052-Y6-LH