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ecobee M5A Smart Wi-Fi Thermostat User Guide

Label  
Description  
This wire or pair of wires controls your whole-home humidification system.  
H or HUM or  
HUM1 and H2  
or HUM2  
ecobee SmartThermostat with voice control, ecobee4 and ecobee3 are compatible with accessories,  
including humidification equipment. When you are setting up your thermostat for the first time, you can  
add one compatible 1- or 2-wire accessory such as a humidifier, dehumidifier or HRV/ERV.  
View the wiring diagrams for your ecobee to learn how to wire an indoor air-quality accessory.  
This wire or pair of wires controls your whole-home dehumidification system.  
D or DH or  
DHUM or  
ecobee SmartThermostat with voice control, ecobee4 and ecobee3 are compatible with accessories,  
including dehumidification equipment. When you are setting up your thermostat for the first time, you  
can add one compatible 1- or 2-wire accessory such as a humidifier, dehumidifier or HRV/ERV.  
DEHUM1 and  
DH2 or DHUM2  
or DEHUM2  
View the wiring diagrams for your ecobee to learn how to wire an indoor air-quality accessory.  
If you see a wire(s) labelled V or VR (or both) or Vg and V+ plugged into your current thermostat, you’ll  
need to take a closer look to ensure your HVAC system is compatible with ecobee thermostats. If your  
HVAC system has terminals labelled R, C, W, Y, G, etc. the ecobee will be compatible.  
V, VR, Vg, V+  
Incompatible thermostat wires:  
Unfortunately, if you see any of the following wires attached to your current thermostat, your  
system is not compatible with ecobee.  
Label  
1 2 3 4  
Description  
These wire labels indicate a proprietary system that is not compatible with ecobee thermostats. You’ll  
need to take a closer look to ensure your HVAC system is compatible with ecobee thermostats. If your  
HVAC system has terminals labelled R, C, W, Y, G, etc. the ecobee will be compatible but may lose some  
proprietary features.  
These wire labels indicate a proprietary system that is not compatible with ecobee thermostats. You’ll  
need to take a closer look to ensure your HVAC system is compatible with ecobee thermostats. If your  
HVAC system has terminals labelled R, C, W, Y, G, etc. the ecobee will be compatible but may lose some  
proprietary features.  
A B C D  
ecobee thermostats are not compatible with these types of wires  
Water or H2O  
L1 and L2, or  
110, 120 or 240  
volts  
These wire labels and terminal blocks indicate a high-voltage system and are accompanied by a  
Danger, Warning or Caution symbol. ecobee thermostats are not compatible with high-voltage systems.  
25 Dockside Drive, Suite 700  
Toronto, ON M5A 0B5  
ecobee.com  
GeneralDetails
Nameecobee M5A Smart Wi-Fi Thermostat User Guide
MakeEcobee
LanguageEnglish
FiletypePDF (Download)
File size2.48 MB
Download PDF
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ecobee M5A Smart Wi-Fi Thermostat User Guide