by ETI Staff | Jul 26, 2017 | SST-2 Heat Trace FAQs
The sensor wires are connected to the blue #18 awg wires in the low voltage section. The sensor is not polarized so it does not matter which sensor wire goes to which blue wire. Click here to view the SST-2 manual A representative diagram of a temperature sensor for...
by ETI Staff | Jul 26, 2017 | SST-2 Heat Trace FAQs
The #18 awg striped wires are to the SST-2 to an external alarm. The SST-2 uses a summary alarm, which will give an alarm for four different reasons: loss of power, failed temp sensor, ground fault test failure and a ground fault alarm. Before connecting the alarm...
by ETI Staff | Jul 26, 2017 | SST-2 Heat Trace FAQs
A flashing supply light means that the temperature sensor is either missing or bad. Ensure that the sensor is correctly wired to the two blue wires. The system will not function without a sensor. Click here to see more about the Temperature sensor. Click here to view...
by ETI Staff | Jul 26, 2017 | SST-2 Heat Trace FAQs
Supply Voltage The SST-2 fixed set point thermostat operates from 120, 208, 240 or 277 VAC at 50/60 Hz. For line supply and load connections, use 10 AWG or larger wires rated for at least 75°C (167°F) at 300 VAC. Contactor Rating The heater contactor provides two (2)...
by ETI Staff | Jul 26, 2017 | SST-2 Heat Trace FAQs
Ideally, the temperature sensor should be located on the pipe on the opposite side from the heater. If this is not possible the sensor can be used as an ambient temperature sensor although it will be less efficient. A representative diagram of a temperature sensor for...
