THIS PROCEDURE MUST BE PERFORMED BY A QUALIFIED TECHNICIAN.
If you have not done so already, please review the generic installation steps here.
NOTE: If installing a Transceiver indoors, only one outdoor temperature sensor is required for automatic charge control. If installing a Transceiver outdoors, an outdoor temperature sensor may be utilized but is not required as the Transceiver comes equipped with a built-in thermistor for sensing outdoor temperature.
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Disconnect power and route low voltage wire from the outdoor sensor through the control's low voltage raceway to the low voltage terminal strip.
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Connect the outdoor temperature sensor wires to the two "OS" terminals (Figure 7) or the OS and TC terminals (Figure 8).
NOTE: If connecting an outdoor sensor, the built-in temperature sensing thermistor MUST be removed.
The TC (thermistor common) terminal is shared by the outdoor and indoor sensors.
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Conduct a pull test to determine connections are secure.
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Restore power and verify proper outdoor temperature information is received by the Steffes heating system (L46 on 2000-Series, HELP Menu on 2100/3100/4100/5100 and Quantum units)
NOTE: Refer to Owner’s and Installer’s Manual for additional information.