Healthy Climate Solutions HCWH-90 User manual

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READ AND SAVE THESE INSTRUCTIONS
FOR FUTURE REFERENCE
WARNING
Risk of property damage, injury or death.
Installation, adjustments, alterations, service and
maintenance must be performed by a qualified ser-
vice technician.
WARNING
Electric Shock Hazard.
Can cause injury or death.
Disconnect all remote electrical power supplies be-
fore servicing. Unit may have multiple power sup-
plies.
Unit must be connected to a grounded power sup-
ply in accordance with national and local codes.
Principle of Operation
The purpose of the Healthy Climate®Whole Home Dehu-
midifier is to keep humidity in the home at acceptable lim-
its, thus reducing the unwanted effects of high humidity.
The dehumidifier gathers data from the HVAC system, or
from the space it is controlling, and measures the condition
of the home air to decide 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.
OWNERS MANUAL
Model HCWH-90 & HCWH-135
Whole Home Dehumidifier
INDOOR AIR QUALITY
506242−01
03/09
Supersedes 02/09
Operating Instruction
The Whole Home Dehumidifier has three adjustable set-
tings: the dryness setting, the air cycle period and the air
cycle time within that period. The dehumidifier dryness can
be set from ˆ1˜ or ˆLESS˜ to ˆ7˜ or ˆMORE˜ based on de-
sired comfort level. Most installations should be initially set
between ˆ3˜ and ˆ5˜ or ˆNORMAL˜ setting; however this
can be adjusted to your individual needs.
Air cycle period is set using the DIP switches, and the po-
tentiometer 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 requirement ˘ 20 minutes
per hour in this example ˘ may be satisfied by a heating,
cooling, or fan call initiated by your thermostat, or if such
calls do not satisfy the air cycling requirement, from a blow-
er call initiated by the dehumidifier itself.
Y2188 Whole Home Dehumidistat (optional)
If your Whole Home Dehumidifier has the optional dehu-
midistat installed, refer to the Whole Home Dehumidistat
Owner’s manual for operation information.
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 ˆNORMAL˜
setting for most installations. Moving the knob clockwise to
ˆMORE˜ will make conditions drier. Moving the knob to-
ward ˆLESS˜ allows for higher moisture levels.
Litho U.S.A.

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Based on the indoor temperature, use the following table to
determine the control knob setting to reach the desired RH
value. The dehumidifier will work to achieve the values in
the following table:
%RH (± 5%) based on Control Knob Setting & Indoor Temp.
Control
Knob
Setting
Indoor Temperature (°F) EXAMPLE:
At an indoor
temperature
of 75°F with
a dehumidi-
fier control
knob setting
of 3, the de-
humidifier
will work to
achieve an
RH value of
53%.
65 70 75 80
1 Less 84% 71% 60%
286% 73% 61% 52%
3 Normal 74% 63% 53% 45%
4 Normal 64% 54% 45% 39%
5 Normal 55% 46% 39% 33%
647% 39% 33% 28%
7 More 40% 34% 28% 24%
NOTE − %RH values are ±5% and are to be used as a GUIDE ONLY
for initial set−up. Indoor Temperature is measured at the inlet to the
HCWH-90/HCWH-135.
Setting the Air Cycle Period and Cycle Time
The air cycle period and cycle time are set during installa-
tion to meet the individual needs of your home. Detailed in-
structions are laid out in the dehumidifier installation manu-
al.
Outdoor Ventilation Option
If a Normally-Closed, Power-Open Damper was installed
in the HVAC outside air intake, it will open whenever air
cycling is active. This allows outside ventilation air to be in-
cluded into the air cycling of your indoor air.
Ventilation Control Limits
In a standard installation, your Healthy Climate®Dehumi-
difier will use measurements of outdoor temperature along
with the user adjustable time settings to determine when to
ventilate with outdoor air. The ventilation damper will not
bring in outside air if the outside temperature is above
100°F or below 0°F.
The ventilation damper will allow outside air to be brought
in when the temperature is between 20°F and 0°F only dur-
ing a heat call. In timed mode, outdoor air is taken based on
the time setting only, regardless of temperature.
Maintenance
CAUTION
Potential equipment malfunction or damage.
May require repairs and/or void warranty.
Do not use solvents/cleaners on or near the circuit
boards.
Air Filter
Under normal circumstances, the filter in the dehumidifier
should be cleaned or replaced once a year. A clean filter is
necessary to prevent damage to the dehumidifier and al-
low it to function at full capacity. To remove the filter, first
unplug or disconnect power to the dehumidifier, then re-
move the air filter via the access panel on the side of the
dehumidifier. To clean, flush with warm water and deter-
gent solution. After a clean or new filter is reinstalled, re-
place the access panel and reconnect power to the dehu-
midifier. The replacement filter for the dehumidifier is
catalog number Y2181 and is available from your installing
contractor or from most other HVAC contractors in your
area.
Reinsert the air filter and access door (catalog number
Y2181). Access door has a tab at the bottom that must be
inserted in the slot below the filter chamber.
FILTER ACCESS
DOOR (Y2182)
FILTER
(Y2181)
TAB ON BOTTOM END OF ACCESS
DOOR MATES IN SLOT ON HOUSING
Drain
The drain trap or outlet should be checked and cleaned of
debris annually by a qualified service professional.
NOTE: The drain trap needs to be primed with water prior
to start−up and after extended periods of unit shut down
(winter months).
10008387 03/09
B2204741A