AUX EL Series Instructions d'exploitation télécharger pdf (Page 24)

09/11/2014 22 NI401

Utility Load Control

Bottom 2-screw terminal block marked blue and blu/wht. Remove the jumper and extend the two wires to the

utility furnished control device. For electric energy operation (off-peak) the two blue wires represent contact

closure as shipped. Do not apply external voltage or external power to the blue wires, they are simply

looking for a closed contact during off-peak.

• The maximum “AC noise” on the blue wire is 5 volts, peak to peak. The blue/white wire is actually

common and if grounding is proper as suggested in the next paragraph, this should dampen any effect. But

it is always good practice to run these wires separate from any current carrying line voltage Romex or other

conductors.

• One load control wire pair handles both winter and summer interrupt.

• If load control reverse logic is required, a “closed to interrupt contact” can be connected to SB SW to

COM. Another way to resolve this issue is through the use of an interposing relay. Consult factory if an

interposing relay is required.

• If load management interrupt does not apply, simply leave the blue wires jumpered.

Grounding

The 24-volt transformer and EZGEO board common are grounded at the compressor contactor coil common

side.

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AUX EL Series Instructions d'exploitation Page 24