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.
Energy Management Computer Interface
The EUR–5A provides three contact-closure outputs to the EMC to indicate operational status with indications of Supply Present, Snow Present, and Heat On. See Figure 11.
These floating relay contacts share a common connection (terminal 13).
• The SUPPLY PRESENT terminal (14) connects to the common terminal (13) when the EUR–5A is receiving 24-volt power.
• The SNOW PRESENT terminal (15) connects to the common terminal (13) when the sensors report the presence of ice or snow.
• The HEATER ON terminal (16) connects to the common terminal (13) while the heaters are on.
When connecting to ECM connect as follows:
• OVERRIDE ON: when the ECM connects terminals 10 and 11 this forces the heaters to be on.
• OVERRIDE OFF: when the ECM connects terminals 10 and 12 this forces the heaters to be off.
These functions are independent of weather conditions and the status of the hold-on timer. If both are engaged, OVERRIDE OFF prevails.