20
COSMOGAS
Ecotwin
5 - OPERATION
Figure 5-8 - Hydraulic diagram with one heating/cooling circuit, DHW, buffer tank and a boiler
LEGEND of Figure 5-8 e 5-9:
1 - Main electrical supply
2 - Internal electrical resistance (3 kW)
6 - Pump P1
9 - DHW electrical resistance
10 - Outdoor unit
13 - Modbus communication
17 - Cooling demand
18 - Heating demand
20 - Circuit 1 temperature sensor (TV1)
22 - Room temperature sensor (Tr)
23 - Heating/Cooling thermoregulation sensor (Tc)
24 - DHW temperature sensor (Tw)
25 - Jumper
26 - Connect to terminals “TA” of the boiler
27 - Filter
29 - Solar (optional)
30 - Domestic cold water
31 - Heating/Cooling system
32 - DHW buffer tank
33 - Auxiliary heat exchanger for solar or other
34 - Boiler
36 - Heating/cooling buffer tank
37 - Boiler sensor for buffer tank
40 - Electrical supply of outdoor unit
43 - Drain valve
53 - Indoor unit
5.5 - Ecotwin with one heating/cooling circuit, DHW, a buffer tank and a boiler
