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Old 11-21-2019, 08:25 PM   #1
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Aqua hot ?

19 Discovery with aqua hot 400D.
The system has front and rear zone heating. Which one keeps the tanks heated and under belly?
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Old 11-21-2019, 08:36 PM   #2
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Location: Rogers, AR
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I think itís the rear zone pump. It would make the most sense, the pump would be pumping liquid to the rear of the coach through all the radiators in the rear part. The thermostats would determine which fans would be turned on.
2019 Fleetwood Discovery LXE 40M w/2012 CRV toad
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Old 11-22-2019, 02:38 PM   #3
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I believe that my 400D has it's own thermostat in my service bay. I believe if the electric element is on the 400D, regardless of the main thermostat's setting, the heat exchanger and the fan that is in my utility bay will come on if the thermostat in that bay calls for heat.

If I'm mistaken, please let me know.

2013 Providence 42P

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Old 11-22-2019, 02:40 PM   #4
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Tuscany 42GX have two thermostats and exchangers in the basement

Others may also
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aqua hot

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