Siemens TUTORbit POL687 Instructions For Installation, Use And Maintenance Manual page 19

4 - INSTALLATION
Figure 4-10 - "Distributed power" DHW diagram
Key to Figures 4-9 and 4-10
1 - Module
2 - Modbus communication connection (optional)
3 - 0-10V connection
4 - Heating zones (maximum of 3 zones)
8 - 230Vac - 24Vac transformer
9 - Thermoregulator's outdoor temperature sensor (Outdoor Temp.)
10 - Thermoregulator
31 - Pump to load the hot water tank (Tank pump)
34 - Hot water tank temperature sensor (DHW tank sens.)
47 - Thermoregulator supply sensor (Water Heater T.)
56 - Heating zone 1 room thermostat (Zone 1 RT)
COSMOGAS
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TUTORBIT