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21
Technical Support / Re: Does generator charge house or starting battery?
« Last post by Fred Brooks on May 19, 2019, 02:04:02 PM »
Greetings Jason,
  Your 91 Contessa has a basic charging system that was common for that era. If you look upward on the ceiling of the battery compartment you will find the wiring and components that charge your batteries. The inverter/converter just charges the house batteries. I believe your 91 was before the installation of the Echo Chargers. The device was made by Heart Interface and is still made by Xantrex. Here is how that works: When on shore power or generator the inverter/ converter starts to charge the house batteries. When the echo charger senses the house batteries are above 13.2 volts it then latches onto the chassis batteries and starts to charge them. Most common problem with that device is the inline 20amp fuse going to the chassis battery is blown.
Hope this helps, Blessings & Joy Fred Brooks
22
Technical Support / Re: wider front tires?
« Last post by Mike Shumack on May 19, 2019, 11:47:48 AM »
Yes.  We replaced the 295/80R22.5 steering tires with 315/80R22.5 tires because the coach's weight was right at the upper limit of the 295's weight bearing capacity and the 295s were showing stress cracks.  The weight bearing capacity of the 295s is about 8,250 pounds; the 315s just over 9,000 pounds - both at maximum pressure.


Note that Michelin has reduced the load capacity for the 315/80R if it is mounted on a 8.25" wide tire. Our wheels are 8.25" wide (at least on my '05 Patriot).
 
My coach has the 315s on front and the 295s on the rear - but I have considered switching back to the 295s in front when the next tire change is due. Reason - to have all matching sizes so my (295/80R) spare will fit any position and because the 295 size is less expensive. I don't see a big difference in load capacity at the 7,000 lb rating (our front axles are rated for 15,300) and the difference in air pressure at that weight is only 5 psi.

Is there a compelling reason the stay with the 315s on the front?

EDIT: correction on typo - our stock rims are 8.25" wide
23
Technical Support / Re: Heat exchanger for Aqua Hot
« Last post by Keith Moffett on May 19, 2019, 10:52:16 AM »
https://www.parts.rvhydronicheaterrepair.com/Heat-Exchangers_c13.htm;jsessionid=A130B750428898CBD7E303CC38E090F1.p3plqscsfapp002

Not sure I saw any there that matched your exact parameters though.

Joel
all kinds of places for heat exchangers but none like ours.  Went and looked again at Roger Burke and that Kozy one is close just turned on its side.  Thanks for mentioning it.  Don't know why I missed it before.  This is a possibility if space allows.
24
Technical Support / Re: wider front tires?
« Last post by Dwight Lakusta on May 19, 2019, 05:44:20 AM »
Yes.  We replaced the 295/80R22.5 steering tires with 315/80R22.5 tires because the coach's weight was right at the upper limit of the 295's weight bearing capacity and the 295s were showing stress cracks.  The weight bearing capacity of the 295s is about 8,250 pounds; the 315s just over 9,000 pounds - both at maximum pressure.

Oh wow. No rubbing issues at all? Is that tire wider?
25
General Discussion / Re: 06 Patriot Thunder lighting Question
« Last post by Joel Ashley on May 19, 2019, 05:42:34 AM »
Some may have a separate rocker switch along the entryway, to the right of the passenger seat, or by the driver, but try turning the headlight switch knob;  for decades on most autos that was how courtesy lamps came on and off, and over the entryway could be considered a courtesy area.

Joel
26
General Discussion / 06 Patriot Thunder lighting Question
« Last post by Robin Goffrier on May 19, 2019, 05:30:26 AM »
Over the entry door, in the ceiling, there are to round white lights that shine down on the inside steps. What turns them off and on.  Mine are on and I can't find a switch to turn them off.

Thanks.

Robin G.
27
Technical Support / Re: wider front tires?
« Last post by David T. Richelderfer on May 19, 2019, 03:49:15 AM »
Yes.  We replaced the 295/80R22.5 steering tires with 315/80R22.5 tires because the coach's weight was right at the upper limit of the 295's weight bearing capacity and the 295s were showing stress cracks.  The weight bearing capacity of the 295s is about 8,250 pounds; the 315s just over 9,000 pounds - both at maximum pressure.
28
Technical Support / wider front tires?
« Last post by Dwight Lakusta on May 19, 2019, 03:38:41 AM »
Has anyone ever put wider front tires to get more weight capacity and more weight displacement in soft areas?
29
Technical Support / Re: Heat exchanger for Aqua Hot
« Last post by Keith Moffett on May 19, 2019, 03:20:09 AM »
So I was finaly able to pull out the heat exchanger unit.  I took it apart and tested the core.  It was leaking pretty badly.  So much for hoping it was a simple bad connection.
The core measures 2 x 6 x 16 and has the in and out connections on one end.
I am trying to stay with OEM because the original fan is three speed and the wiring is set up that way.
A part number from BCS Google's out to a transformer.
Looking for suggestions since Burke and Carillo dont have anything .
Thanks
30
In more detail, the generator and shore power supply 120v to the transfer switch.  The transfer switch transfers 110v to the inverter/charger.  The charger unit internal to the inverter converts the 110v to 12+v and sends 12+v power to the house batteries, and that same 12+v power is sent on to the chassis (starter) batteries through the Big Boy/BIRD system after the house batteries have been sufficiently charged.

So... yes, both the generator and shore power will charge both the house and chassis batteries IF the transfer switch, inverter/charger, AND Big Boy/BIRD system are ALL working properly.

From the engine, the engine's alternator sends 12+v to the chassis batteries, and that same 12+v power is sent through the Big Boy/BIRD system after the chassis batteries have been sufficiently charged.

The Big Boy/BIRD system is an important system used to keep both the house and chassis batteries charged.  Note:  Some coaches have an ECHO charger or some similar bi-directional device instead of a Big Boy/BIRD system.

BIRD means Bi-directional Isolator Relay Delay.
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