Humidification & Dehumidification - York LX series Owner's Manual

Installer Setup
Humidity and Dehumidity (Setup Steps 40 -45, 70-71)
(This feature not available on all models)
Humidity Only With Heat (Setup Step 40) - When this step is set to ON, Humidity
will not run without a demand for Heat.
Fan With Humidity Demand (Setup Step 41) - Specifies if the fan should be turned
on with a demand for Humidity. (This step will only appear if step 40 is set to OFF.)
Humidity Setpoints (Setup Step 42) - Specifies whether the Humidity setpoint should
be entered by the user (MANUAL) or determined automatically by outdoor temperature
(AUTO). An outdoor temperature sensor is required for the AUTO setting. If the out-
door temperature sensor stops reading while this step is set to AUTO, the Humidity
setpoint will revert automatically to a setting of 15 percent.
Cool To Dehumidify (Setup Step 43) - Specifies if the cooling equipment is allowed to
turn on exclusively to lower room humidity. (If set to OFF. the following two steps will
not appear.)
Max Dehum Overcool (Setup Step 44) - Specifies how many degrees below the Cool
setpoint the air conditioning will run to satisfy a Cool to Dehumidify demand. (0 - 5 )
Reheat Operation With Cool To Dehumidify (Setup Step 45) - Specifies if electric
strip heat is allowed to turn on during a Cool to Dehumidify demand to help maintain
desired room temperature. This step is not available if Electric Heat is not present.
HUM Output Polarity (Setup Step 73)
Open (Normally Open) means no voltage is sent to the HUM output when there is no
demand for humidity.
Closed (Normally Closed) means voltage is sent to the HUM output when there is no
demand for humidity.
DEHUM Output Polarity (Setup Step 74)
Open (Normally Open) means no voltage is sent to the DEHUM output when there is
no demand to dehumidify.
Closed (Normally Closed) means voltage is sent to the DEHUM output when there is
no demand to dehumidify.
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