How to Read Lennox Harmony 2 Codes
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demand help - lennox harmony zone organization
Customer of ours has a harmony zone system. fault code tells the states temp sensor bad, changed sensor, still non working, mistake code says if still a problem change controller. Does anyone know if there would exist a trouble with putting on a honeywell zone system in its place. I wouldn't think in that location would exist but there is ane terminal labeled DS, not sure what this is. Any tips would be welcome. The reason I want to change to honeywell board is to save customer lots of money plus I'thousand frustrated with Lennox board! Thank you for the help in advance.
- Stay with the Lennox board, the Honeywell has no way of ajusting variable
Originally Posted by falkenater 
Customer of ours has a harmony zone system. mistake code tells us temp sensor bad, changed sensor, still not working, fault code says if still a problem change controller. Does anyone know if there would be a problem with putting on a honeywell zone organisation in its place. I wouldn't call back there would be but there is i terminal labeled DS, not sure what this is. Any tips would be welcome. The reason I want to change to honeywell lath is to salve client lots of coin plus I'1000 frustrated with Lennox board! Cheers for the help in advance.
speed blower every bit the Harmony lath does. if yous accept an older board the new Lennox board is an easy conversion.
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The board is non the problem, the trouble shooting guide says its the controler thats located at the side of the board. With other two stage systems I have been fine with using Honeywell or Arzel boards and if my zones are big enough as in this case I have it set upwards for majority zones to call for 2nd stage and so when 1 zone is calling it volition only ran on 1st phase. Is this posible with Lennox organisation?
- If your talking about a Harmony two organisation and its Control console (not the command center) its not used on a Harmony iii organization, and so your trouble goes abroad. Originally Posted by falkenater
The lath is not the problem, the trouble shooting guide says its the controler thats located at the side of the lath. With other 2 stage systems I have been fine with using Honeywell or Arzel boards and if my zones are large plenty as in this case I have it prepare for majority zones to call for 2nd stage and then when one zone is calling information technology will only ran on 1st stage. Is this posible with Lennox organization?
- Ok so you have a lawmaking that says the sensor is bad, yous change the sensor, withal non working. Originally Posted by falkenater
Customer of ours has a harmony zone organization. fault code tells us temp sensor bad, changed sensor, still not working, fault code says if even so a problem change controller. Does anyone know if there would be a trouble with putting on a honeywell zone system in its place. I wouldn't recall there would exist merely there is one terminal labeled DS, not sure what this is. Any tips would exist welcome. The reason I want to change to honeywell lath is to salve client lots of money plus I'm frustrated with Lennox lath! Thanks for the assistance in advance.
Now you ask what the terminal marked DS is for? It for the Discharge air Sensor, yea the sensor you've been changing.
Looks similar you need to read upward a fleck more than or post a question thats more articulate equally to what y'all're doing.If you're swapping out sensors where the hell are you connecting them? Should exist the DS terminals.
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Excuse me truck! And FYI I hooked it up to the same wires information technology was hooked up to at the supply can. I assume that is right. Wires ohm out ok. And in the trouble shooting guide that is what information technology says, if problems persists modify control panel! Nice fault code!
- Originally Posted past falkenater
Excuse me truck! And FYI I hooked it upwardly to the same wires it was hooked up to at the supply tin can. I assume that is correct. Wires ohm out ok. And in the trouble shooting guide that is what it says, if problems persists change control panel! Nice mistake code!
Well it is hard doing this over the internet Merely...Some things don't make sense.
1. you hooked information technology upwardly to the same wires at the supply can? SOOOO what wires is it connected to at the lath. Should be at the DS last cake.2. Supply can? it'south supposed to be in the supply duct.
I'm thinking the trouble IS going to persist if you change a DS and don't know what the DS terminals on the board are for!
They should add together a fault code that reads send unlike tech
ps don't take this too seriously, I've pulled the pilus out of my head several times working on these damn things. You might have it set upwardly correct and your diagnoses is correct but it'southward hard to see from here
- Originally Posted by truck12
Ok so you accept a code that says the sensor is bad, you change the sensor, all the same not working.
Now you ask what the terminal marked DS is for? Information technology for the Discharge air Sensor, yea the sensor you've been changing.
Looks similar you lot demand to read up a chip more or post a question thats more clear as to what yous're doing.If you're swapping out sensors where the hell are you connecting them? Should be the DS terminals.
ds is the signal last to the five bulldoze blower in the furnace or air handler Non the discharge sensor.....
if you change out the control system and do not use the harmony panel you will lose ability to control airflow to each zone indepenantly.
- The D and S terminals in the airhandler do vary the speed of the blower motor when connected to a thermostat with D and S terminals. For humidity control. Originally Posted by t527ed
ds is the signal concluding to the 5 bulldoze blower in the furnace or air handler NOT the discharge sensor.....
The board does not command humidity. The DS terminals in the board are for the sensor.
- Originally Posted by truck12
The D and Southward terminals in the airhandler practice vary the speed of the blower motor when connected to a thermostat with D and S terminals. For humidity command.
The board does non control humidity. The DS terminals in the lath are for the sensor.
DS terminal on the harnII is to control the cfm on the v-drive blower. Set up your cfm acording to what you want on each zone. This command doesnt do well on a conventional blower eitherthe senser controls the high and lowspeed of the condenser. deppending on weather you have a 2 speed or single speed condenser connected to the control
if the senser isnt being picked upwards by the board so you volition need to supersede the board. sorry
the controls y'all desire to use will not piece of work likewise and you will run into cfm and static problems
cheque all your connections and yous pivot settings and your wiring making certain it is all correct and making contact
if yous connect the senser to the DS terminal the lath will do some wacky thigs or burn out
- The supply tin can is the supply duct! Don't bother trying to reply my question you are no help at all! I'yard sure you lot are bald by now! Originally Posted by truck12
Well it is hard doing this over the cyberspace BUT...
Some things don't make sense.
1. you hooked information technology up to the same wires at the supply can? SOOOO what wires is information technology connected to at the board. Should be at the DS terminal block.2. Supply can? it's supposed to exist in the supply duct.
I'yard thinking the problem IS going to persist if you lot change a DS and don't know what the DS terminals on the lath are for!
They should add a error code that reads send different tech
ps don't have this too seriously, I've pulled the pilus out of my head several times working on these damn things. You might have it fix upwardly right and your diagnoses is correct only it'south hard to see from hither
- Thanks tinknocker yous have been very helpful Originally Posted by tinknocker service tech
DS terminal on the harnII is to control the cfm on the v-drive blower. Set your cfm acording to what you want on each zone. This control doesnt practice well on a conventional blower either
the senser controls the high and lowspeed of the condenser. deppending on weather you have a ii speed or single speed condenser connected to the control
if the senser isnt beingness picked up by the board then yous will need to supersede the board. sorry
the controls you want to employ volition non work as well and you will meet cfm and static problems
cheque all your connections and you pivot settings and your wiring making sure it is all right and making contact
if you connect the senser to the DS terminal the board will do some wacky thigs or burn out
- LOL gee mister you seem upset. Originally Posted by falkenater
The supply tin can is the supply duct! Don't bother trying to answer my question you are no assist at all! I'm sure you are bald past now!
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Here'south some harmony stuff to chew
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Originally Posted by truck12 The D and S terminals in the airhandler do vary the speed of the blower motor when continued to a thermostat with D and South terminals. For humidity control.
The lath does not control humidity. The DS terminals in the board are for the sensor.
if you wire it that style information technology explains why you are pulling your hair out..... das terminal = Discharge Air Sensor.
ds terminal = variable signal to vary speed of blower depending on which zones and how many of them are calling.
- Thank you for your support! And a message to "truck" if you don't know the subject field possibly its better not to comment, just a idea. Originally Posted by t527ed
if you wire information technology that way information technology explains why yous are pulling your hair out.....
das last = Belch Air Sensor.
ds terminal = variable indicate to vary speed of blower depending on which zones and how many of them are calling.
- Yea thats what I meant Originally Posted by t527ed
if y'all wire it that way it explains why yous are pulling your pilus out.....
das terminal = Discharge Air Sensor.
ds terminal = variable bespeak to vary speed of blower depending on which zones and how many of them are calling.
- Originally Posted by truck12
Yea thats what I meant
thats what i idea...
Source: https://hvac-talk.com/vbb/threads/148033-need-help-lennox-harmony-zone-system
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