by ETI Staff | Jul 26, 2017 | EUR-5A FAQs
A flashing supply light on any APS or EUR-5A control indicates a missing or broken High Temperature Limit sensor. This sensor is required to make the EUR-5A controller to work. The sensor is not polarized and must be connected to pins 1 and 2. Refer to figure 9 in the...
by ETI Staff | Jul 26, 2017 | EUR-5A FAQs
Install a 100K Ohm resistor in-line with the Equipment Ground terminal (19). Disconnect Equipment Ground terminal (18). Grounding The EUR–5A sensor circuits and the EMC inputs are referenced to a common circuit ground. In most situations, this part of the system can...
by ETI Staff | Jul 26, 2017 | EUR-5A FAQs
BEMC stands for Building Energy Management Computer, which can be used to remotely monitor and control the EUR-5A controller. These connections are made to pins 10 through 16. The following diagram will aid in making these connections. See page 9 of EUR-5A manual....
by ETI Staff | Jul 21, 2017 | EUR-5A FAQs
The EUR-5A is designed to turn on and off, as the weather requires heat to deal with snow or icing conditions. Although a thermostatic dry contact switch can be used to override the system on for temperature alone, is not recommended since it will reduce the...
by ETI Staff | Jul 21, 2017 | EUR-5A FAQs
There can be several reasons for this. First start by checking the sensor supply voltage between pins 2 and 3 of the class two terminal blocks. It should be close to 24 VDC (the label on some unit incorrectly say 24VAC). If there is no voltage then check the fuse on...