12/24/2023 0 Comments Roadtrek battery isolator![]() ![]() When running (or exercising) the generator. That it will allow the van battery to be charged by the Onan generator I also recall a discussion on this forum about wiring the isolator so Manual or wiring diagram for that isolator. Battery isolators do just what it sounds like: They isolate your RV house batteries from your vehicle’s SLI (starting-lighting-ignition) battery. I've just spent 30 minutes searching the internet for an instruction Standard Alternator Charger and Battery Isolator While driving, your Roadtrek will also charge the coach batteries from the vehicle alternator through an isolator. If I knew how to attach a picture to this message I have one or two of the blue replacement isolator. Battery Disconnect Switch The battery disconnect switch provides power to all 12 volt appliances, such as the water pump, the refrigerator, and so forth. A good presentation on electrical operat. Worth in October 2009 for around $125, but I believe they have gone up in price since then. Here is a great session on a variety of battery, charging, isolator and converter issues for your Class B Roadtrek. The Sprinter’s vehicle battery is under the driver’s floorboard. It is an issue with the RoadTrek design and if there is not power to the inverter you need to 'jump start' it so the charger in the inverter can get started. I picked up a replacement isolator 33-20 in Dallas/Ft. My point was that without 12v, the inverter wont work. It/they should all be rated at 130A and are built I believe for the Delco alternator application. BTW, the model 33-301 was a naming convention Hehr created for Roadtrek to identify the part they get from Hehr and then install or resell as an OEM Roadtrek part. It is also the same as the 33-20 (just the isolator) or I believe the 33-21/22 models which have the wiring kits. Yes, there a small metal box behind the battery box whi h contains a 50 amp self resetting circuit breaker and a large terminal stud where the charging wire from the isolator (through the circuit breaker), the wire from the coach battery, the hot lead to the TrippLite all come together. The 33-301 is the full isolator with wiring harness for the Chev model I (we?) have. With a Hehr-Powerline 33-301 battery isolator serial #3666.I have a 2002 190P which probably came with a cooked 33-301 Hehr-Powerline. The puzzling thing is that it has current (its hot) with the motor off (no alternator) while it is not connected to anything.Īnybody that has a older 90's Treck may be able to help me.According to the documentation that came with my 2007 C190-P, it came Protects main starting battery from auxiliary drain. ![]() This 120-amp battery isolator enhances your alternator performance for efficient charging, maximum power, longer battery life, and safer operation. I need to know what the green to black wire thats coming out of the firewall and where its supposed to be connected to. Deka Battery Isolator - 120 Amp - DW08771. My solenoid was mounted to the back wall of the battery compartment. Seems like there has to be a wire connected to the engine positive terminal side of the primary battery. They will typically run right to the solenoid - either in the same compartment, or through a hole in the wall to the adjacent compartment. I dont know if that green-to-black wire is supposed to be connected to the primary battery side of the isolator no1 terminal. That red one should be connected to the middle terminal on the isolater. The alternator output red wire is currently directly connected to the battery + connector. The problem is, I still don't know what the wire is thats comming out of the firewall that is green and turnes into black. RT's response was to tell me what the standard hookup is, which I already know. The 33-301 is the full isolator with wiring harness for the Chev model I (we) have. I recently sent a question on the battery isolator hookup on my 1991 Dodge B250 Trek. ![]() Below is question I sent to the techies at RT and I did'nt get the answer I was looking for. ![]()
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