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Topic: AquaHot Bay Heat (Read 668 times) previous topic - next topic

AquaHot Bay Heat

We didn't have cold enough weather at GrandVention to worry about bay heat, but Susan & I returned to 29-30 degree temps overnight last night.  So, a couple of questions.

First, despite the knob that controls (I think?) the bay temps being set to at 40+ degrees, last night the bay temperatures were 70+.  What am I missing about this process?

Second, that temp was measured by a sensor for an indoor/outdoor thermometer placed in the water manifold bay — thinking that would be one of the most critical areas, the utility bay being the other.  But how uniform are the bay temperatures?  Our 48" storage bay right behind the fuel/propane bay stays warm as a result of the inverter.  What about the bays farther back, or water lines running through the coach?

Thanks in advance for any thoughts.

Susan & I want to post a couple of other notes to the Forum about GrandVention, with thanks to everyone for the friendships, info, and help!  We also saw a gorgeous 1985 Foretravel on our way to GV, but just haven't had time to post the photo yet.  However, today was spent catching up, reprovisioning the coach and answering emails that sat in our Inboxes while driving back.  More soon!

Richard & Susan

The selected media item is not currently available.Richard & Susan Peck
____________________
1999 40' U320 "Bob Patrick"
(2000 4010 U320 WTFE Floor Plan, Single Slide)
Build #5567  |  MC #17522

Re: AquaHot Bay Heat

Reply #1 –
Richard,

Any time the bay thermostat calls for heat, the number two pump runs, the utility bay fan coil gets hot AND the bay fan runs.

Anytime the bathroom thermostat calls for heat, the number two pump runs and the utility bay fan coil gets hot.

Anytime the diesel burner runs, the number two pump runs and the utility bay fan coil gets hot.

The first way the bay gets warm air circulated.  The other two ways, the bay is warmed by convection.
Rudy Legett
2003 U320 4010 ISM 450 hp
2001 U320 4220 ISM 450 hp
1995 U320 M11 400 hp
1990 Granvilla 300 hp 3208T
Aqua Hot Service Houston and Southeast Texas

Re: AquaHot Bay Heat

Reply #2 –
Rudy, to get heat to the basement compartments must both zone one and zone two furnace be activated at the 5 button control panel? Then there is that bathroom square control box to heat the bathroom area- must that be turned on too?
ED
Ed Pan, M.D.
2002 U320 40'

Re: AquaHot Bay Heat

Reply #3 –
Ed the bathroom has to be on in most cases to get heat down below.
2025 Wanderbox Outpost 32 on F600 Expedition Motorhome
2015 Born Free Royal Splendor on Ford 550 nonslide version  for sale
Former Coaches  covering. 360,000 miles
1999 34 U270
2000 36 U320
2001 42' double slide U320
2018 Jeep Rubicon

Re: AquaHot Bay Heat

Reply #4 –
Ed,

To get heat to any zone, the electric heating and/or the diesel burner switches must be on long enough to get the heater up to temp.  The electric element will go from ambient to set point in 2 to 3 hours.  The diesel burner will do that in 20 to 30 minutes.

The electric element will provide heat down to 50 maybe 45 degrees F.  The diesel burner will work in frigid conditions.

With all interior thermostats OFF, the basement thermostat is on and will function all by itself.

John, remember the bathroom comes on to keep room temp at 70ish degrees while the basement lags behind because it is set between 40 and 50 degrees.  But the basement fan coil gets hot anytime the bathroom is calling for heat.
Rudy Legett
2003 U320 4010 ISM 450 hp
2001 U320 4220 ISM 450 hp
1995 U320 M11 400 hp
1990 Granvilla 300 hp 3208T
Aqua Hot Service Houston and Southeast Texas

Re: AquaHot Bay Heat

Reply #5 –
Thanks for all the clarifications. We are at Hershey Thousand Trails and temp can drop to 39 - 40d- and with some wind, can drop lower. Only have 50 Amp plugged in. No water hoses out- using tanks. Leaving for Florida on Thursday  after visiting with son in Reading Pa.
ED
Ed Pan, M.D.
2002 U320 40'

Re: AquaHot Bay Heat

Reply #6 –
Rudy,
Addition to the drama concerning the dual electric operation on the 600 AH, after Tenn RV solved the issue of miss wiring at control panel, I now find another issue, only 1 element works at a time, both are on the same leg, so need to move one line to the other leg.  Easy to notice with the voltage monitor.  Still feel there is a gremlin in thare.  The Diesel  works very well.
Not a biggie, but interesting, yes have it hooked up to the 50 amp 120/240 v source.
Dave

Re: AquaHot Bay Heat

Reply #7 –
Leaving both the 110v and diesel switches on will lessen the amount of diesel used.

Both are seperate in the unit.

If the 110 cannot completely keep the heat in the boiler up by itself the diesel comes on in addition to it.

Different low temp  come on points.  Electric is 185.  Diesel is 175 allowing the electric to work as much as possible.

New coaches have much larger electric heating elements in their aquahot or I think the oasis also.

Or dual electric elements I think I read

Does not sound correct to have a dual element on one leg and only one work at a time does it?
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4

Re: AquaHot Bay Heat

Reply #8 –
Dave, A factory new install of the AHE 600D, two 120 vac electric element heater would include two 20 amp circuits and breakers, each on a different leg.  There would be a LOW and HIGH switch for the two electric elements in the coach.  Low on 30 amp shore power would run one element only.  High on 50 amp shore power or generator would run both elements.  Each element is a 2000 watt 120 vac element, one element per leg.  Choosing high on 30 amp single leg shore power would put a 28 amp load on the 30 amp power source.

Bob,  The older stainless steel case heaters that do NOT have an electronic control board operate as you described.  A set of thermostats for diesel and a set for the electric element.  Electric comes on sooner than the diesel and then the diesel if the electric can not keep up.

The newer heaters with electronic control panels have one control thermostat that tells the board the tank needs heating.  Then the board starts what ever heat source that is turned on.  If both diesel and electric are turned on, both start and stop at the same time.
Rudy Legett
2003 U320 4010 ISM 450 hp
2001 U320 4220 ISM 450 hp
1995 U320 M11 400 hp
1990 Granvilla 300 hp 3208T
Aqua Hot Service Houston and Southeast Texas

Re: AquaHot Bay Heat

Reply #9 –
Rudy,
Very true what you say, BUT that AIN'T how mine is working, I ONLY get one ELEMENT on at a time, can turn on 1, turning on the HI does not draw any current OR perhaps the HI switch is only repeating the circuit to the same element.  No idea why this is so COMPLICATED, the sad part, I can not crawl into the compartment to figure out such a simple circuit.  Sure not an EMERGENCY on my part yet.
Joy to the World.

Re: AquaHot Bay Heat

Reply #10 –
Quote from: Dave M –
Rudy,
Very true what you say, BUT that AIN'T how mine is working, I ONLY get one ELEMENT on at a time, can turn on 1, turning on the HI does not draw any current OR perhaps the HI switch is only repeating the circuit to the same element.  No idea why this is so COMPLICATED, the sad part, I can not crawl into the compartment to figure out such a simple circuit.  Sure not an EMERGENCY on my part yet.
Joy to the World.

Possible that your board is bad? 
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4
 

Re: AquaHot Bay Heat

Reply #11 –
Rudy, all,

First apologies for being slow to reply to the helpful posts in this thread.  I was bitten by some kind of respiratory bug around GrandVention time and have been pretty much off the Forum for two weeks. 

Thankfully, the AquaHot (bay heat included) has been working great, because we've had nights that have reached 26-27F in the mountains.

Second, however, and MUCH more important, thanks for the great help — yours particularly, Rudy. 

Susan & I are very grateful!  You and others on the Forum have been wonderful.  We hope someday we'll either be knowledgeable enough to begin helping others, or that we'll at least run into you somewhere and be able to buy you a cup of coffee or the beverage of your choice.

With much appreciation. 
The selected media item is not currently available.Richard & Susan Peck
____________________
1999 40' U320 "Bob Patrick"
(2000 4010 U320 WTFE Floor Plan, Single Slide)
Build #5567  |  MC #17522