16
COSMOGAS
Ecotwin
Figure 5-4 - Hydraulic diagram with one heating/cooling circuit and DHW
LEGEND of Figure 5-4 and 5-5:
1 - Main electrical supply
2 - Internal electrical resistance (3 kW)
3 - Electrical supply (Max 10A)
9 - DHW electrical resistance
10 - Outdoor unit
13 - Modbus communication
17 - Cooling demand
18 - Heating demand
20 - Circuit 1 sensor (TV1)
22 - Room temperature sensor (Tr)
23 - Heating/Cooling thermoregulation sensor (Tc)
24 - DHW temperature sensor (Tw)
27 - Filter
28 - Differential by-pass valve
29 - Solar (optional)
30 - Domestic cold water
31 - Heating/Cooling system
32 - Buffer tank
33 - Auxiliary heat exchanger for solar or other
40 - Outdoor power supply
43 - Drain valve
53 - Indoor unit
5.3 - Ecotwin with one heating/cooling circuit and DHW
5 - OPERATION