New Harmon Accentra owner Help on temperture

[CTpellet]

Stove Insert set on "Room Temp" mode....setting between Low and High......Temp dial set on apporx 68 degrees during day.....my question?? Seems like stove starts up with auto ignitor around 65 degrees then runs steady till my living room thermoeter on oppossite wall says around 80 degress before it starts to shut down..then goes completely cold...till bottom around 68 degrees before starting up again.

My question is there a "finer" setting that will keep it more in line without the large temperature drops? Thanks

 

[jtakeman]

Where is your probe located? Can you measure the temp at that location??

jay

 

[TomPajak]

sounds like the probe might be placed too low or touching a cold wall...

 

[THE ROOSTER]

Mine did the same thing, probe was mounted underneath the bottom stove shroud out of sight and the heat of the room... I had to pull out my stove to get all the wire out... I have read you can add 18-2 wire to make it longer, you can add as much as 100' but don't get it more than 25' away from the stove... I also read that some recommend using 16-2 wire or even 14-2, I have yet to do anything else will wait until summer to do this...
Hope this helps...

 

[mark d fellows]

Where is your probe located? Can you measure the temp at that location??

jay

Yep, Extend the temp probe away from the stove as far as you can get it. Try running the temp wire along the floor and curling it up about 10 inches at the end so it is about 10" from the floor.

 

[timjk69]

I got some extra wire and mounted my sensor about 15' away at eye level. The probe is just peeking out at the top if a picture so you have to look close to see it. Works excellent that way. I'd say my room temp never varies more than a couple of degrees.

 

[bgnn]

I have a Harmon Accentra, ending my 4th year, no problems. I have a pole lamp behind the stove an ran the thermocouple wire up to eye level, works great. If you need to add wire be sure it's type j or K thermocouple wire. Regular wire will not work. Bought 4 ton of Maine Choice this morning paid $ 1,020.00

 

[charles u farley]

If you need to add wire be sure it's type j or K thermocouple wire. Regular wire will not work.

It does not need to be thermocouple wire. Thermostat wire is fine.

 

[bgnn]

Thermostat wire is thermocouple wire would you like to dicuss the ion constant of the wire and how it generates a milliamp voltage to send the signal to the processor controlling the stoves temperature??

 

[BDPVT]

If you need to add wire be sure it's type j or K thermocouple wire. Regular wire will not work.

It most definitely needs to be thermocouple wire. Wire that is used in a thermocouple from the point of sensing to the point of cold junction compensation (cjc end) where the signal is measured. A thermocouple is a sensor for measuring temperature, that consists of two dissimilar metals that are joined together at the sensing end. Different thermocouple types (e.g. J, K, T, E, etc) use different mixtures of metals in the wire. At the cjc end, the millivolt value provided by the thermocouple represents the difference in temperature of the sensing end as compared to the cjc end (also called the reference end).
It does not need to be thermocouple wire. Thermostat wire is fine.

 

[charles u farley]

If you need to add wire be sure it's type j or K thermocouple wire. Regular wire will not work.

It most definitely needs to be thermocouple wire. Wire that is used in a thermocouple from the point of sensing to the point of cold junction compensation (cjc end) where the signal is measured. A thermocouple is a sensor for measuring temperature, that consists of two dissimilar metals that are joined together at the sensing end. Different thermocouple types (e.g. J, K, T, E, etc) use different mixtures of metals in the wire. At the cjc end, the millivolt value provided by the thermocouple represents the difference in temperature of the sensing end as compared to the cjc end (also called the reference end).
It does not need to be thermocouple wire. Thermostat wire is fine.

Perhaps before trying to continue insisting on the correct wire to use, you two should first be aware that Harmon's design uses either an RTD or thermistor. If I could be bothered to shut down my stove I'd measure the temperature coefficient of the sensor to figure out just what it is, but as I said, I can't be bothered.
The factory lead wire is a generic stranded copper cable. NOT thermocouple wire. It is soldered to a epoxy dipped axial leaded device and covered with heat shrink. Sure doesn't sound like a thermocouple to me. The factory manual states to use up to 100' of THERMOSTAT wire for extending the probe. Please look here (broken link removed to http://www.harmanstoves.com/doc/accentram.pdf) specifically page 13 where the manufacturer states the wire type to use.

I guess since it's not a thermocouple there will be no need for a discussion of the law of intermediate metals.

 

[tjnamtiw]

I guess since it's not a thermocouple there will be no need for a discussion of the law of intermediate metals.[/quote]

Thank heavens for some sanity!! I was about to get sick.