Seabreeze emergency boost solenoid

[Nutmeg]

I am helping a friend with his 2005 National Seabreeze, Ford chassis, v10 motor with a elecrical issue. The emergency boost solenoid will stay energizied when the chassis is off after the momentary switch is pushed. If the coach battery is disconected the solenoid will de-energize and stay de-energizied until pushed again when it will lock on. (Control circuit stays energizied) Momentary switch on dash, contacts are working correct making/breaking when dry checked.

It appears that the dash switch must operate a relay/circuit that in turn is powering the switch terminal on the solenoid.

Looking to find out the normal operation of the system to understand it.

How is the system supposed to work?

Where would this control relay be located?

Is this solenoid a dual purpose in that when the ign is on it energizes to allow charging of the coach batteries from the chassis when going down the road and as an energency boost?

Anyone dealt with this before and what did you find?

All insight welcome, Thanks

[Nutmeg]

Ok it looks like it has a RV Custom Products small distribution center I found the post below that looks like this is a normal condition. Comments?

Bill, it sounds like your system is working fine. It would be helpful to know about your rigs equipment when asking for diagnosis help such as photovoltaic panels and shore power status.

The BCC is quite a nice system in your rig which works bidirectionally to keep both house and chassis batteries charged. This is my understanding of how it works:
Which ever side or both sides is providing charging power be it the alternator, the shore power or gen or solar power, the BCC controls whether the chassis and house batterie share the charging source. This is based on the threshold voltage the BCC is set to. That voltage is factory setable on the BCC circuit board and is around 13.2 volts. When a charging systems' batteries reach that set voltage, the solenoid will energize and share to the other system. Conversely, the solenoid will de-energize when the two systems tied together lower to around 12.7 volts.

Apparently your batteries were well charged and it took at least the half hour you mentioned before the lower set point of about 12.7 volts was reached. Once the solenoid is un energized, The dash booster switch can be used to turn it back on.

Marty

[RJay]

The description above is accurate.

[floridaflash]

Quote:

Originally Posted by Nutmeg I am helping a friend with his 2005 National Seabreeze, Ford chassis, v10 motor with a elecrical issue. The emergency boost solenoid will stay energizied when the chassis is off after the momentary switch is pushed. If the coach battery is disconected the solenoid will de-energize and stay de-energizied until pushed again when it will lock on. (Control circuit stays energizied) Momentary switch on dash, contacts are working correct making/breaking when dry checked. It appears that the dash switch must operate a relay/circuit that in turn is powering the switch terminal on the solenoid. Looking to find out the normal operation of the system to understand it. How is the system supposed to work? Where would this control relay be located? Is this solenoid a dual purpose in that when the ign is on it energizes to allow charging of the coach batteries from the chassis when going down the road and as an energency boost? Anyone dealt with this before and what did you find? All insight welcome, Thanks

I have a 2000 SeaBreeze and it works this way: If your chassis battery is low hold it to the right while starting the engine. If your coach batteries are low, hold it too the left while starting the gen. Otherwise, I believe they are disconnected when it is in the neutral position. I don't believe it has any other function.
David

[Nutmeg]

Ok here's where I am at after the replies, reading searched posts and a phone call to RV Custom.
Looks like the rv custom board opens the Interconnect solenoid if the voltage of either battery bank falls below 12.6 volts and closes it if either bank goes above 13.6. Between the two volage points it stays in its previous state. ie will stay closed once voltage of either bank goes above 13.6 until one bank falls below 12.6 - then would stay open until one bank is above 13.6. Hense closed is can be a normal condition. The boost function has a one minute time out function after being depressed.

Need to confirm the board numbers to be sure, but I am guessing I found a normal condition. Thoughts?

[jlyon69]

I have a somewhat related question and I'm still learning about my '99 Dolphin. Occasionally I need to use the "boost" switch to start the coach. This seems to happen after the coach sits for an extended period. My question is, is it advisable to leave the boost switch open while being stored and on shore power to keep the chassis battery charged?

[Nutmeg]

Quote:

Originally Posted by jlyon69 I have a somewhat related question and I'm still learning about my '99 Dolphin. Occasionally I need to use the "boost" switch to start the coach. This seems to happen after the coach sits for an extended period. My question is, is it advisable to leave the boost switch open while being stored and on shore power to keep the chassis battery charged?

I am unsure if the 99 has the same system as the 2005. But in general batteries should be kept in a charged state as if they are allowed to discharge below 10 volts or so they tend to deteriorate. That said IMO your batteries in storage need to be maintained by the on board system or a seperate battery maintainer. Without knowing how your unit is setup exactly its hard to give info. Owners manual would be the best reading. Generally you can find out if the converter is charging the chassis battery by taking a volt reading on the chassis battery then pluging in the shore power and checking again. If the volts go from around say 12.2 to about 13.8 then the converter will charge your batteries. If the converter does not charge I would use a seperate battery mainainer/tricle charger to keep the chassis battery up myself.