What is a changeover valve on a heat pump?
The changeover valve is a device which reverses the flow of refrigerant in the heat pump. This will allow the freon to reverse and heat the home or cool the...
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What is a changeover valve on a heat pump?
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What internet browsers are supported by My Total Connect Comfort?
The internet browsers supported by Total Connect Comfort are Internet Explorer 8, Firefox 4, Safari 5, and Chrome 9.
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Where is the MAC ID and MAC CRC located?
Each thermostat has a unique MAC ID and MAC CRC which is unique to your device. You’ll need to know these numbers in order to register your thermostat or to...
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I am unable to register my thermostat on the Total Connect Comfort website
Total Connect Comfort is an online portal alternative to the Honeywell Total Connect Comfort app (available for iOS and Android devices). To register your thermostat on the Total Connect Comfort website,...
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I registered for an account on My Total Connect Comfort but the confirmation email never arrived?
It may take several minutes for your confirmation email to arrive from My Total Connect Comfort. Check your junk or spam mailbox for the activation email. The activation email will...
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I have additional wires in my wall that were not connected to my old thermostat. Do I need them to install my new thermostat?
An extra unused wire in the wall can be used as the C wire for your new thermostat. The extra wire will also need to be connected to the C...
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I am not sure whether my new thermostat is wired correctly?
The best guide for correct wiring instructions is always the installation manual for your thermostat. The manual or quick start guide will have come inside your thermostat’s packaging. If you...
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What is a cycle rate?
A Cycle rate is the maximum number of times a system will run, in an hour, when using 50% of its capacity to maintain a given temperature. For a high...
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My heating and cooling system has a terminal labeled "COM". What is a COM terminal and what do I do with it?
A COM terminal is often used as another name for the C terminal and issued to provide power to your thermostat. COM can also refer to a communication circuit and...
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I am having difficulty removing my old thermostat?
Often times, the thermostat will snap off of the wallplate with moderate pressure. Other times, there might be small screws holding the device in place. If you are unable to...
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Why do I have to verify that the heating and cooling system door is firmly secured?
Most heating and cooling systems have a built in safety switch, which stops power to the heating and cooling system if the door is not secured.
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How do I find the password to my router?
Check the back or bottom of the router or the operating manual for the password. If you are still unable to find the password contact the router manufacturer.
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What size screwdriver do I need to install my Honeywell thermostat?
A small flat edge pocket screwdriver and a No. 2 Phillips screwdriver are recommended.
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How do I know if my old thermostat contains mercury?
The thermostat will have a glass tube with a silver liquid inside of the tube. Mercury is typically found in older mechanical thermostats like the Honeywell Round T87 and rectangular...
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