I have just brought a new honeywell digital thermostat T6620B1008(DT200) and i am having trouble wiring it up.
all i have on the new stat is A.B.C.conections
I HAVE 3 WIRES RED BLUE AND YELLOW WITH A RED COLLAR ON THE YELLOW CAN YOU HELP ??????
An expert who has achieved level 3 by getting 1000 points
An expert that got 10 achievements.
An expert that got 5 achievements.
An expert whose answer got voted for 100 times.
Re: wiring honeywell digital stat
The way you wire it will depend on how the other end of your three wires are wired into your heating system. This link http://www51.honeywell.com/pacific/common/documents/DT200_Specifications.pdf
shows the various methods for wiring it and take into account the type of setup you are dealing with. You'll need to find the wiring detail ( last page) that corresponds to your setup..
Hope this helps..
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Try jumping the "R" and "W" terminals on the back of the stat or its sub-base of the thermostat. If the heat comes on, its not the stat that is bad. Or, the thermostat may not have been wired correctly if it is a new installation. Let me know if you need more information. Roger
Possibles are: 1. Heating system not powerful enough to get temp to 21 C. How high does it get if you set it to 23 C? 2. Hysteresis in DT200 set too wide? Adjust it to 0.5 or 1 C and retry. 3. Calibration error (ie you're using an independant thermometer to read the actual temperature, whereas the DT200 "thinks" it has reached 21 C. Is there a symbol on the DT200 which corresponds to a 'call for heat'?
The model number is going to be on the thermostat. It is not unusual for the number to be on the back of the stat, meaning you may have to take it off the wall. It could also be found betweenthe base ans the stat.
Once you have the model number googel "Honeywell XXX" with XXX being the stat model number. If you can't find the stat, you can go to the Honeywell web site and do a search, matching your stat, by the pictures and functions. It is a bit tedious, but it works.
The red and white wires go to the R and W terminals on the thermostat. Disconnect what you have now and hook the red wire to the R terminal and the white wire to the W terminal on the new thermostat and see what happens.
Go to honeywell.com
Under red welcome sign
Bottom red highlighted box literature/image search
Type in thermostat model number
Click on arrow to right
Then click on the PDF files owners manual / installation instructions
it is always advisable to shut down the main swith to avoid further issues in replacing thermostat, if you follow the right color coding this should be no prob, unless otherwise it cannot detect the right temp then it will not stop until it reaches and senses the right temp.