R2107 and DHW

Rich_29 · May 2006

Is the R2107 capable of 160* DHW. I would like to run it high and mix it down. Looking at the operating instructions for the R2107, I found the following - The factory setting is 140* and the range is from 86-140*F. Are there any techs/H.O.'s using the R2107 for 160* dhw? Thanks.

ScottMP · May 2006

of course

I use mune for Domestic and shoot up to 160.

Scott

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Ray Landry_2 · May 2006

I think if I remember right you need to get a diferent 10K ohm sensor to bump up to 160

Rich_32 · May 2006

Scott, How do you get the R2107 to produce 160* dhw? Thanks.

S Ebels · May 2006

Weak point

I have been unable to use that control on a couple Buderus installs when I really wanted to just for that reason. Both were small commercial applications and needed 160+ for sanitizing equipment. I wish they would do something that would enable higher DHW temps with the 2107.

I've heard of installing the extra/different resistor but I'm leary of modifying factory controls that way.

D107 · May 2006

high dhw temp partially defeat mod-con benefit?

hi--excuse my layman ignorance on this side point to your discussion. Does not having to maintain DHW to 160 deg. let's say in the shoulder season when a mod-con might otherwise be maintaining supply temps let's say 120-140 deg or lower negate those lower supply temps? (I know the 160 deg. DHW temp could be set to only be during high usage times, but still...)

Thanks,

David

ScottMP · May 2006

I jumped to quick

Sorry Rich, I mis-understood the your question. You are correct in that the high limit is set at 140.

Scott

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Ray Landry_2 · May 2006

All the mod/cons that I've seen fire up to there high limit regardless of what hte tank temp is, whenever there is a call for hot water, it fires at 100 percent capacity.

TGO_54 · May 2006

Contact Buderus

They will tell you how to do this and provide you with a factory drawing.

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R2107 and DHW

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