READ AND SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE
WARNING
Risk of property damage, injury or death.
Installation, adjustments, alterations, service and mainte-
nance must be performed by a qualified service technician.
Principle of Operation
INDOOR AIR QUALITY
KITS AND ACCESSORIES
506242-01
03/2012
Supersedes 05/2011
HEALTHY CLIMATE
®
WHOLE HOME DEHUMIDIFIER
OWNER’S MANUAL FOR HEALTHY CLIMATE
®
WHOLE HOME DEHUMIDIFIER
MODELS HCWH-090-01 (Y1841) & HCWH-135-01 (Y1842)
WARNING
Electric Shock Hazard. Can cause injury or death.
Disconnect all remote electrical power supplies before
servicing. Unit may have multiple power supplies.
Unit must be connected to a grounded power supply in
accordance with national and local codes.
The purpose of the Healthy Climate
®
Whole Home Dehumidifier is to keep humidity in the home at acceptable limits, thus reducing the
unwanted effects of high humidity. The dehumidifier gathers data from the HVAC system or from the space it is controlling, measures the
condition of the air in the home and decides when to run. An integrated air cycling feature can activate the HVAC blower to cycle air through the
home to balance the indoor conditions. The dehumidifier can also operate an optional ventilation damper to bring in outside air.
Operating Instructions
The Whole Home Dehumidifier has three adjustable settings: the dryness setting, the air cycle period and the air cycle time within that period.
The dehumidifier dryness can be set from “1” or “LESS” to “7” or “MORE” based on desired comfort level. Most installations should be initially
set between “3” and “5” or “NORMAL” setting; however this can be adjusted to your individual needs.
The air cycle period is set using the DIP switches, and the potentiometer is used to set the air cycle time which are both located on the control
board under the knob and are set during installation. If the cycle period is set to 1 hour and the cycle time potentiometer is set to 20 minutes,
you will get 20 minutes of air cycling every hour. It is important to understand that the air cycling time requirement, 20 minutes per hour in this
example, may be satisfied by a heating, cooling, or fan call initiated by your thermostat. If such calls do not satisfy the air cycling requirement,
the dehumidifier will initiate a blower call.
Adjusting Dehumidifier Main Control Set Point
Use the main control knob on the outside of the unit to set the dehumidifier dryness setting.
Start with a “NORMAL” setting for most installations. Moving the knob clockwise to “MORE”
will make conditions drier. Moving the knob toward “LESS” allows for higher moisture levels.
Lennox icomfort Touch
®
Control (optional)
Refer to the icomfort Touch
®
Owner’s Manual for operation information.
Y2188 Whole Home Dehumidistat (optional)
Refer to the Whole Home Dehumidistat Owner’s Manual for operation information.
Figure 1. Control Knob Setpoint
90-1327
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