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I want to replace a Drayton Thermostat with a Honeywell CM707, I have a Red, live, Yellow, heat and a Blue, neutral wire. The heating operates via a diverter valve.

I want to replace a Drayton thermostat with a Honeywell CM707 thermostat. It operates via a British Gas UP2 controller, I will leave the heating permanently on so that it is controlled by the thermostat. The CH system has a diverter valve which can supply heat to the water tank, the radiators or both. The wiring to the old thermostat was red, live, yellow, live for heat, and blue, neutral. The CM707 has A, live, B, live for heat, and neutral terminals, do I connect to the neutral terminal?

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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elias_sgr
  • 163 Answers

SOURCE: Installing a Honeywell Programmable Thermostat with my Bryant Puron HVAC System

i hope this helps

http://www.instructionsmanuals.com/u2/pdf/termostato/Honeywell-RTH7000-fr.pdf

Posted on Aug 18, 2008

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SOURCE: Hunter 44100A programmable thermostat

Sorry Iasumed you had a heat pump t-stat. You will need to exchange to a heat pump t-stat

Posted on Sep 28, 2008

  • 415 Answers

SOURCE: Upgrade Baystat 239 to a Honeywell RTH7600D controller

For Trane sytems, B is your "Common" wire. O is your reversing valve relay, G is your fan, Y is your compressor contactor, R is Hot, Brown will not be used on your electronic tstat. X2 is your backup electric heaters. Without knowing what terminals are on your new tstat, I cannot offer more information than this. The installation manual may indicate what each terminal is controlling. I strongly suggest to write down ALL of the terminals and colors from your old t-stat and be sure to turn off the power to your air handler. Put the fan switch on your tstat to ON before turning off the power. Make sure the fan is running. Then turn the power off to your Air Handler. If your fan stops running, you have turned the power off to your tstat and are ready to start replacing it with your new tstat. I hope you find this helpful. Good Luck!!!

Posted on Feb 07, 2010

SOURCE: Replaced Bryant T-stat model TSTATBBNB001 with Honeywell t-stat

Hello,You forgot to wire the O terminal w1 witch is the reversing valve.It is important to check if old stat is using O or B in witch case B terminal=w1 leaving O unused.

Posted on Apr 21, 2010

jgwhomeequip
  • 1902 Answers

SOURCE: I am replacing a white-rodgers thermostat with a

Blue just goes to B

Posted on May 18, 2010

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Hi,

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