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Old 06-19-2016, 10:38 PM   #1
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Direct Spark ignition

Hello. We have an Atwood DSI propane only water heater on our 2016 travel trailer. My question is whether I leave the switch in trailer in the " on "position or do I turn it off and turn it on again when I need hot water again. Thanks
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Old 06-19-2016, 10:45 PM   #2
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Welcome to iRV2.

The water heater will cycle back on when it's sensors detect a water temp lower that it's set point , if your not drawing hot water , it could be hours before it cycles back on . Depending on the model the red indicator may flash when it re-lights.

EDIT: On when set up in a park and off on the road.
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Old 06-19-2016, 11:45 PM   #3
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thanks for the welcome!. So I can leave the switch in the on position and it will ignite the burner when the thermostat detects a lower temperature in the water tank and start the cycle over again right? Do I need to be hooked into shore power for the DSI to operate? Does it do any harm to just shut off the DSI switch after bathing and dishes etc say when we retire for the night?
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Old 06-19-2016, 11:49 PM   #4
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Quote:
Originally Posted by nephi007 View Post
thanks for the welcome!. So I can leave the switch in the on position and it will ignite the burner when the thermostat detects a lower temperature in the water tank and start the cycle over again right?
Yes.
Do I need to be hooked into shore power for the DSI to operate?
No
Does it do any harm to just shut off the DSI switch after bathing and dishes etc say when we retire for the night?
No
Answers above.
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Old 06-19-2016, 11:54 PM   #5
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Water heater propane & DSI uses 12V DC for power.
Either via converter when plugged into AC Shore Power OR via trailer battery


Thermostat will OPEN when water temp reaches 140*F
Thermostat will CLOSE to reheat when water temp reaches 110*F

OR
You can turn it ON 20 minutes before (so water can heat up) you want hot water and turn it off afterwards.


Just be sure you have water in it before turning it ON.
Propane will fire with a dry tank-------will trip off w/o any harm PROVIDED you do not panic and fill it with water right afterwards (Hot aluminum tank and cold water ----can crack tank)
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Old 06-21-2016, 10:06 PM   #6
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hey guys didn't get a chance to thank you for your help on that DSI propane only and no hot water problem. The by pass was in the wrong position and the outside shower knobs were in the open position as well so I closed those and hot water showed up. Wife and daughter lovin' it. Thanks again!
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Old 06-22-2016, 05:55 AM   #7
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Don't forget that if your are on 30amp shore power ( Campground ) use your electric, and save your propane !!!
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Old 06-22-2016, 09:35 AM   #8
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Our's is gas only. We heat water for showers and leave the heater off the rest of the day/night.
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Old 06-22-2016, 09:40 AM   #9
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Gas only, That's a new one to me ! But the best of the 2 !
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