22
COSMOGAS
Ecotower
5 - OPERATION
Figure 5-10 - ECOTOWER Hydraulic diagram with double heating/cooling circuit, DHW, buffer
tank and boiler
5.6 - Ecotower with double heating/cooling circuit, DHW, a buffer tank and a boiler
LEGEND of Figure 5-10 and 5-11:
1 - Main electrical supply
2 - Power supply of the DHW electrical heater (1,5kW) (item
“20”)
3 - Pump P1
4 - Pump P2
6 - Power supply of the heating electrical heater (3kW) and
the integrative electrical heater (3kW) (item “33”)
7 - Outdoor unit
8 - Modbus communication
10 - Enable mixing valve (M51) circuit 2
14 - Double setpoint demand
15 - Circuit 1 sensor (TV1)
16 - Circuit 2 sensor (TV2)
17 - Room temperature sensor (Tr). It must always be
connected and must be left inside the appliance.
18 - Heating/Cooling thermoregulation sensor (Tc)
19 - Indoor unit
20 - DHW integrative electrical heater (1,5kW)
21 - Outdoor unit power supply
22 - Safety kit (hydrometer, safety valve and automatic air vent
valve) (supplied with accessories)
23 - Domestic hot water outlet
24 - Cold water inlet
25 - Heating/cooling system filling
28 - Non-return valve
33 - Heating electrical heater (3 kW) and electrical heater
(3kW) inside the heat pump (section 8.2.10.1)
34 - Filter
35 - Heating/cooling system
36 - Expansion tank
37 - Drain valve
39 - Heating/cooling Buffer tank
40 - Connect to terminals “TA” of the boiler
41 - Boiler
42 - Heating/Cooling manual selector
43 - Reversible heating/cooling room thermostat
44 - Pressure safety relief valve (supplied with accessories)
