44 Installing the System Piping
3.6.9 Wiring Diagram - Optional Supply/Return Temperature Sensors
System Pump
(max. 2.5 A)
Temperature Sensor
Thermal Insulation
Heating Return
Sensor (optional)
Heating
Supply Sensor
(recommended)
<NFB>
Cable Tie
Pressure
Relief Valve
Air Vent
Air Vent
Bushing
Note
Ɣ
To control the boiler supply or return water temperature using the external temperature sensors, configure the system
accordingly.
Ɣ
On the front panel, tap the Control button ( ) > SH Control, and select one of the SH Control Method options.
Ɣ
Additional universal temperature sensors are available for purchase where Navien products are sold.
Ɣ
Refer to “11.5.2 Setting the Space Heating Operation” on Page 93 for details.
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