Lennox iComfort S30 Installation And Setup Manual page 21

OUTDOOR TEMPERATURE READING CALIBRATION
Range is -10 to 10°F. Default is 0°F. Adjustments are in increments of 1°F. This will
allow for adjustment to the outdoor temperature display when the display
temperature is off. Outdoor sensor is required.
HP HEATING MODE (XP25 ONLY)
Options are Normal and Comfort. Default is Normal. The normal setting heats the
home to the desired temperature setting. Modify the heating comfort mode to limit
minimum compressor speed to 60 – 70 percent range and/or adjust comfort mode
CFM.
AUTO DEHUMIDIFICATION OVERCOOLING THRESHOLD
Range is 0 - 10°F. Default is 4°F. Adjustments are in increments of 4°F.
SEVERE WEATHER PROTECTION
Options are enabled or disabled. Default is enabled. When enabled both the heat
and freezing alert temperature settings will cool or heat the home based on the
setting of both parameters.
HEAT ALERT TEMPERATURE
This will turn on the cooling system when the indoor temperature reaches the
setting defined for this parameter. Range is 80°F to 120°F with a factory default of
100°F.
FREEZING ALERT TEMPERATURE
This will turn on the heating system when the indoor temperature reaches the
setting defined for this parameter. Range is 20°F to 60°F with a factory default of
40°F.
ZONING GAS HEATING DAT COOLDOWN TARGET
At the end of a gas cycle, the Heat Blower Off-Delay may not be long enough to
completely cool the heat exchanger. This may result in a primary limit trip then, or at
the beginning of the next heat demand. This parameter allows the blower to run
after a gas heat call ends until the discharge air temperature sensor (DATS) cools
to the temperature set in the parameter. If the temperature is set too low this will
cause the temperature in the room to overshoot.
Range is 80 to 90°F. Default is 85°F. Adjustments are in increments of 1°F.
ZONING ANTICIPATED DISCHARGE AIR TEMPERATURE ADJUSTMENT
This parameter setting compensates for a rapid change of the discharge air
temperature due to fast changing conditions. It examines the change in the
discharge air temperature for the previous 2 minutes and extrapolates or looks
forward by the number of seconds set in the parameter and uses this as the DATS
value for staging. This parameter setting helps prevent limit trip/frozen coil from
occurring.
Range is 0 to 120 seconds. Default is 60 seconds. Adjustments are in increments of
5 seconds.
ZONING TARGET SUPPLY AIR TEMP FOR COOLING
In cooling mode, this setting sets the target discharge air temperature.
Range is 40 to 60°F. Default is 45°F. Adjustments are in increments of 1°F.
ZONING TARGET SUPPLY AIR TEMP FOR HP HEATING
In heat pump heating mode, this setting sets the target discharge air temperature.
Range is 85 to 110°F. Default is 90°F. Adjustments are in increments of 1°F.
ZONING SUPPLY AIR TEMP LIMIT FOR COOLING
In cooling mode, this setting sets the discharge air temperature low limit. Below this
temperature, the cooling is turned off.
Range is 35 to 45°F. Default is 40°F. Adjustments are in increments of 1°F.
ZONING SUPPLY AIR TEMP LIMIT FOR GAS/ELECTRIC HEATING
In heating mode, this setting sets the target discharge air temperature.
Range is 140 to 160°F. Default is 140°F. Adjustments are in increments of 5°F.
HP HEATING LOCKOUT TIME
The HP could not get a zone to progress 0.5°F towards the set point in 120 minutes
(Code 40 - Minor alert). System will switch to secondary heat source. (Electric heat
or furnace in dual fuel applications). Transition back to Heat Pump normal
operation when termination setting times out.
Range is 60 to 240 minutes. Default is 120 minutes. Adjustments are in increments
of 30 minutes.
ZONING MINIMUM ZONE RUN TIME
Range is 90 to 600 seconds. Default is 120 seconds. Adjustments are in
increments of 30 seconds.
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