Ecobee Smart Thermostat
Allows you to use auto mode on the ecobee; useful in the Spring or Fall when you may want to heat or cool your home without having to manually switch between modes.
Heat/Cool Min Delta
Used in auto mode only, this is the minimum difference in your heat/cool setpoints. When set to 5°F, if you set your heat to 65°F then you must have your cool set to at least 70°F. The lower this value the faster your system will switch modes. For example, if your home is in cool mode during the day in the Spring and the temperature begins to drop in the evening, your system will be able to enter heat mode faster (depending on your setpoints) the lower this value is.
Compressor Min Cycle Off Time
This enforces a minimum time that the compressor must be off between cycles. This ensures the compressor does not short cycle (which could negatively affect the operating life of the system). This time is adjustable from 240–900 seconds.
In general, higher values are better for your system but will give you larger temperature swings. Lower values are worse for your system (and more expensive) but provide more comfort.
Compressor Min Outdoor Temperature
This is the outdoor temperature where your compressor will no longer be allowed to run. Even though a heat pump becomes much less efficient and useful at temperatures below 20°F, it still works. This feature is typically used for air-to-air source heat pumps. For cool-only units, you may need to set this value higher to avoid damage; check your model's recommended minimum temperature before changing this.
AC Overcool Max
Uses the air conditioning to reduce the humidity by cooling beyond the current set point by the configured amount. Note that cooling is still determined by the set point, and the system will not resume cooling until the temperature rises above the current set point. For example, if your cooling set point is 75°F, and this value is set to 2°F, it will allow the AC to overcool to 73°F if the humidity set point has not been met.
Aux Heat Max Outdoor Temperature
This is the maximum outdoor temperature above which the auxiliary heat will not be engaged.
Heat Differential Temperature
The minimum difference between the current temperature and set temperature before the system calls for heat. If your setpoint is to 72°F and this value is 2°F, then the heat will not engage until the temperature is 70°F.
Heat Dissipation Time
The amount of time the fan will run after the heat set point has been reached and the call for heat has been turned off. Running the fan for a period of time allows for any heated air left in the ducts to circulate throughout the home.
Aux Min On Time
The amount of time the aux heat is required to be on in any cycle. This prevents putting unnecessary stress on the system.
Cool Differential Temperature
The minimum difference between the current temperature and set temperature before the system calls for cool. If your setpoint is is 72°F and this value is 2°F, then the air conditioning will not engage until the temperature is 74°F.
Cool Dissipation Time
The amount of time the fan will run after the cool has been turned off. Running the fan for a period of time allows for any cooled air left in the ducts to circulate throughout the home.
Compressor Min On Time
The amount of time the compressor is required to be on in any cycle. This prevents putting unnecessary stress on the system.
Compressor Reverse Staging
If this option is enabled, the thermostat will cycle down from the higher stages so that as it approaches set point it will only be running in stage 1. The HVAC equipment will start in stage 1. As the stage 1 temperature delta is exceeded, the second stage will engage. Once the equipment has brought the current temperature back to within the temperature delta, stage 2 will disengage and stage 1 remain running until the set point is meet.
Compressor Stage 2 Temperature Delta
The minimum difference between the current temperature and set temperature that will activate the auxiliary heat (regardless if the maximum run time of the previous stage was reached).
Compressor Stage 1 Max Runtime
The maximum amount of time stage 1 will run before engaging the next stage.
Compressor to Aux Temperature Delta
The minimum difference between the current temperature and the set temperature that will activate this stage (regardless if the maximum run time of the previous stage was reached).
Compressor to Aux Runtime
The maximum amount of time this stage will run before engaging the next stage.
Aux Reverse Staging
When enabled, the aux heat will be disabled when the thermostat determines that it is possible for a lower stage to finish heating to the desired setpoint.
If the temperature where your thermostat is located does not represent the actual temperature, use this to compensate.
If the humidity where your thermostat is located does not represent the actual humidity, use this to compensate.
If enabled, your thermostat will ignore sensor readings that deviate from the average home temperature by this value. This prevents your home from heating or cooling excessively if sensors are placed in sub-optimal locations like near cold windows or a heat source.
To prevent accidental modifications to the installation settings, you can enable a 4-digit installer code. This code is preprogrammed to 3262.