User Guide

13
high and low balance points, then both the heat pump and auxiliary heat
source are allowed to run.
6. Safety Protection: Alerts you if the home gets too cold or hot. This is set
under this menu option on the setting for both low and high temperatures.
The system will automatically turn on either cooling or heating if the home’s
interior temperature reaches either the low or high setting. A notication is
also sent to the Home screen notication area and iComfort Thermostat
App.
Auxiliary Heat Overview
Auxiliary heat is the use of an additional heat source, when the heat pump
BTU capacity is not sufcient to keep up with the home’s heating demand;
sometimes it is also called supplemental heat. When used in a dual-fuel mode,
auxiliary heating is accomplished with a gas or oil red unit. In this mode of
operation, the heat pump must shut down and uses just the auxiliary heating
unit for heating.
If the system is an air handler with electric heat, the auxiliary heat will be in
conjunction with the heat pump when the home heating requires it. Another
use of auxiliary heat with heat pump systems includes a setting called balance
point. Balance point puts temperature limits on when the heat pump and
electric heat work together or independently.
• When the outdoor temperature is above the default high balance point of
50°F (10°C) (default), only the heat pump will be allowed to run (no auxiliary
heat).
• When the outdoor temperature is below the default low balance point of 25°F
(-4.0°C) (default), only the auxiliary heat is allowed to run (no mechanical
heat pump operation).
• When the outdoor temperature is between the low and high balance point
settings both heat sources are allowed to satisfy the heating demand.
Humidity
Some options that are available under this section are dependent on type of
equipment (indoor and outdoor units) and humidication accessory is installed.
Adjustment Slider Tools
• Dehumidication Set Point Percentage — The slide bar adjustment tool
allows desired humidity level in the home. Selection between 40% to 60%
are available. Default is 55% when dehumidify is enabled.
• Humidication Set Point Percentage- This adjustment tool is only visible
when dew point is set to OFF. Range is 15% to 45% humidity. Default is 40%.
• Overcooling — This adjustment allows selection between 0°F to 4°F (0°C
to -2°C). This adjustment is only available when Max or Climate IQ (Auto)
is selected. This selection will limit how much overcooling is allowed when
trying to achieve the dehumidication set point. Default is 2°F (1.0°C).
• Dew Point — This adjustment twill help reduce the amount condensation
that may build up on windows and other glass surfaces. A dew point slider
bar option will appear under the humidity menu. By default the dew point
slider is set to OFF. When dew point is set to ON, the slide bar adjustment
will appear with a range of -15% to 15%. Default is 0%.
NOTE: Dew Point - Adjustment requires an outdoor temperature sensor and
is automatically controlled by the outside temperature.
Humidity Control
The following options are available under humidity control:
• Off
• Humidify only option is available when a humidication accessory is
installed.
• Dehumidify only option is available with or without a dehumidication
accessory installed.
• Humidify + dehumidify option is only available when a humidication
accessory is installed.
Humidication Control Center
When a humidication accessory is installed and humidify is enabled, the
options are as follows:
• Normal — Recommended for moderate climates. This runs the humidier
when there is a call for heat and humidication.
• Max — Recommended for drier climates. This runs the humidier when
there is a call for humidication only.
» Dew Point percentage slider adjustment tool is available for both Normal
and Max settings.
» Humidication set point percentage slider adjustment tool is only visible
when Dew point is set to OFF.
Dehumidication Control Center
IMPORTANT
The following dehumidication settings are not applicable and ignored on
systems employing iHarmony Zoning.
No Dehumidication Accessory Installed
When dehumidify is enabled and no dehumidier accessory is installed, the
dehumidications options are as follows:
• Normal — Recommended for moderate climates. No dehumidication is
active. Dehumidication set point slider adjustment tool only is available.