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Rinnai 2520 problem

I have a wood boiler and use the rennai as a back up but when the boiler goes out the is no sensor in the heat exchange to tell the rennai to kick in to maintain the temp for the heat system. I think I need some kind of aquastat that will sense when the water goes below 120 the rennai will kick in . Any ideas

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  • 83 Answers

Yes but do not think you will find the solution here and not sure you would be able to accomplish this either
I would contact the mfg of both pieces and as well look for DIY sites that may be of some help and more detailed
It would take a l t of time to walk you thru this
This being more of a it is broke I need to fix it not modify website I would not attempt to do here
Be cautious taking help on the net just because it sounds right does not mean it is

Posted on Oct 20, 2013

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SOURCE: I want to increase the boiler temp by using the your aquastat

Warning! Can cause electrical shock! Here is the instruction manual
for L7248c
http://customer.honeywell.com/techlit/pdf/PackedLit/68-0281.pdf

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SOURCE: My Rinnai R94 LSi stops sending hot water

II would think that the unit is going out on hil imit because there is not enough psi on the water coming in.Is this unit on well water or city?If it on well water you have run some cleaner in it every six months.L on the side of the heat or inside and there a toll free number to call talk to a tech.

Posted on Mar 15, 2009

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SOURCE: No central heating back boiler

back boiler run from a gas fire? check the instructions to operate the gas heat to the back boiler not just the fire
I presume that this a fully pumped system - air lock doubtful There maybe on/off valves on the pipes to and from the back boiler [situate close to cylinder] make sure they are on - anticlockwise turn
or there could be a blockage in the outlet from header tank usually in the loft. or If there is no water in it maybe the mains cold feed it is off.
Note if no water in it DO NOT USE the back boiler

Posted on May 03, 2009

gary1121
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SOURCE: Our rinnai water tankless thing is beeping, saying

hit the priority button, this will reset it, the go thru and reset the temp again, turn the unit off and on again waiting atleast 30 sec. the filters might be clogged on the shut off valves and not letting the right amoutn of water flow thru, they are behind the cap screws turn off the water on both sides take out the screens and clean them then reinstall and turn the water and unit back on,you might want to fluch out the system while you have the screens out

Posted on May 29, 2009

gary1121
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SOURCE: I need the manual for a Rinnai Infinity 26 hot water system

you can get it off the rinnai web site they have a spot on there to get the internet manuel,, but from what you are saying you may need to adjust the thermostat, or the temp, remember even though you will have endless hot water it still takes the smae amount of timed for the hot water to get to your faucet,, not only that make sure your shower heads aren't holding back to much water pressure, if you don't have enough water going thru the unit it will not stay lit, if will come on and go off, judt to dstisfy the unit,, make sure the filter is clear, on the cold side there is a cap screw if you take it off there is a screen in side you just pull it out and clean it and reinstal it,,

Posted on Jun 27, 2009

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