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4. Heating DHWT with oil or gas boiler.
Boiler control:
5. Heating DHWT with electrical heater.
Legend:
DTC
Differential thermostat
DTC 100/2 TDG
T1, T2
Sensors
T1 - colector sensor
T2 - DHWT sensor
P
Pump
Non return valve
Electrical connection
Electrical connection
Electric motor actuated ball valve
EMV 110 .. series 602, 603
Electrical heater
Safety thermostat of electric heater
Relay
DTC 100/2 TDG
53
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