A) Is converter/charging system the same as my (2) 3000W Xantrex inverters?
Your coach does not have a converter/charger. Your Xantrex inverters are equipped with a charger. The converter converts AC voltage to DC voltage. Inverters change DC voltage to AC voltage
B) When people talk about checking the BIRD system, is that the same is the ATS (Transfer Switch system)?
No. A transfer switch is a means to either apply shore power to the coach or apply generator power to the coach. To be on the safe side, you should not have the coach on shore power and then start the generator of vice versa. In theory you can run run both at the same time but...........there is alwys the possibility something will go wrong. Better safe than sorry. If you do have shore power hooked up and start the generator, the trnsfer switch will default to the generator.
Here is what a BIRD does:
The BIRD (BI-DIRECTIONAL ISOLATOR RELAY DELAY) performs two important functions. It provides a
method of charging the coach battery from the engine alternator and charges the chassis battery from the
converter when the coach is plugged into shore power. When neither battery is being charged, the batteries
are isolated from each other to prevent the loads of one battery from inadvertently discharging the other battery.
If the generator is running, the isolator is prevented from pulling in to prevent the generator and converter from
operating the chassis functions which might over-load the converter.
Country Coach used the Echo Charger which does the same thing but is a lot simpler
2002 Country Coach Intrigue