The lights flash when the heater tape is cold and the unit is turned on for the first time. The heat tape draws higher initial or inrush current when it is cold and this sags the internal processors power supply causing it to reset.
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.
When wiring the SST-2 the white and red wires of the controller must be wired together for the unit to have power. This is regardless of the voltage applied to the unit. The white wire powers the controller and the red wire goes to the contact of...
Yes, the length of the sensor wire can be shortened or extended as long as:
This depends on what you are calling heater cable. Most heat cable has two segments the heat tape and the cold wire. These are usually spliced together in either a high-temperature box or as an in line splice.
Yes, to test the system by simulating a sensor call for heat, connect a short jumper wire between terminal block terminals 25 (sensor signal) and 24 (sensor ground). Now the Heat LED should turn on within 10 seconds and the control relay should...
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Yes. The sensor wire can be extended up to 500 feet with #18 awg wire and 2000 feet with #12 awg wire.