![]() Remove the wire at the BIRD and re-measure the voltage at the big relay. Look on the BIRD and find the terminal marked Relay. If you read 13.3+ on each (the same voltage), the BIRD has activated the relay and the charger is charging both banks. You should read House voltage all the time on one stud and the chassis bank on the other. To check this, use a multimeter to read from ground to each terminal on the big relay. With the coach plugged in, you would assume that both battery banks are charging. The resultant flickering of lights would alert the owner of the system overload.It's easy for you to test. If the chassis voltage goes above 13.3 volts again, the relay will again close in about two (2) seconds to re-try and charge the battery. This might happen when the alternator is not able to supply sufficient current to all of the loads. If the voltage should drop below 12 volts for more than two seconds while running, the relay will drop out. When the ignition switch is turned off, the relay will open immediately. The controller engages the relay at full voltage, and then reduces it allowing an intermittent duty cycle relay to be used continuously. When this voltage goes above 13.3 volts for approximately 12 seconds, as happens when the engine is running normally (normal alternator output voltage is approximately 14.4 volts), it will close the isolator relay providing charging current to the coach battery. ![]() ![]() It operates by sensing the level of voltage on the chassis 12 volt system. There are three (3) wires to connect to the delay unit, one from an ignition switched 12 volt source, a ground and the isolator relay coil. It operates in combination with an intermittent duty cycle isolator relay, similar to ones used as diesel starter solenoids. The unit is packaged in a plastic enclosure for mounting in the engine compartment with four flathead screws. A remote (dash mounted) switch can be added for a coach battery Jump Start feature. This system also ensures equal charging voltages on both batteries, regardless of current draw, preventing overcharging of the coach battery when heavy chassis current is being supplied. This allows the use of self-exciting alternators and lets the engine briefly warm up prior to placing the load of a heavily discharged coach battery on the alternator. Unlike conventional diode isolators, this system provided the engine driven alternator with the opportunity to begin charging the chassis battery before connecting the coach battery. INTELLITEC'S Battery Isolator Relay Delay - Diesel offers a new approach to charging, isolating and jump starting dual batteries in an RV which has a diesel engine requiring up to 800 amps of starting current. You can file for a return by going to our returns page.We offer a 15 day returns or exhchange policy.If you have any issues with your order, please contact us first so we can make your order right!.Once your item arrives, be excited and have fun!.You can track your order any time from our tracking system included in your shipment confirmation email. ![]()
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