CAC / BDP 76CR User manual

Model 76CR Dehumidifier Control
PLEASE LEAVE THIS MANUAL WITH THE HOMEOWNER
Installed by:_____________________________________________________________
Installer Phone: ___________________________ Date Installed:__________________
Model 76CR Dehumidifier Control
Owner’s Manual

Thank you for your purchase of the Model 76CR Dehumidifier Control. Your control allows you
to set the relative humidity level for your home and provides control of the dehumidifier from
a convenient living space location. The Model 76CR uses an onboard sensor to monitor the
relative humidity in the space in which it is located and displays the measured relative humidity
on the digital display.
The Model 76CR can also act as a remote control for your dehumidifier if it is located in an
inconvenient or hard to access area. For example, when the dehumidifier is located in and
dehumidifying a crawl space or a basement, the Model 76CR can be installed where you spend
most of your time, allowing you to make changes to the setting and to see what the humidity is
in these areas without having to access the dehumidifier.
SETTING THE DESIRED HUMIDITY LEVEL
The control will allow you to set the desired humidity level in your home and can be used to
turn dehumidification On or Off.
The materials in a home act like a sponge, so the moisture in the materials of your home is at
the same level as the air. After drying the air, the materials of the home will release moisture
back into the air until they are again at the same level. As a result, it is not uncommon for the
dehumidifier to operate for an extended period of time when first installed.
Begin by pressing the ON button and ON will be displayed on the LCD Screen (see LCD display
in Figure 1). Use the arrow buttons to set the control at 59% when first installed. Allow the
dehumidifier to run for 24 hours before deciding if you want to change the humidity setting.
Begin by pressing the ON button and ON
will be displayed on the LCD Screen (see
LCD display in Figure 1). Use the arrow
buttons to set the control to a dryness
level of 3 when first installed. Allow the
dehumidifier to run for 24 hours before
deciding if you want to change the dryness
level setting.
Increase the dryness level setting
if you prefer the air to be more dry;
this will increase the amount of time
that the dehumidifier runs.
Decrease the dryness level setting
if you prefer the air to be less dry;
this will reduce the amount of time
that the dehumidifier runs.
The dryness level settings can be approximated to relative humidity (%RH) using Table 1.
EXTERNAL CONTROL
REMOTE CONTROL
FIGURE 1 – Control Display and User Buttons
LCD Display
Mode Buttons – Use
to turn control On/Off. Buttons – Use to view and
set humidity or dryness level setting.
TABLE 1 – %RH (+/-5%) Based on Dryness
Level Setting & Indoor Temperature
Dryness
Level
Setting
Indoor Temperature (°F)
65 70 75 80
184% 71% 60%
286% 73% 61% 52%
374% 63% 53% 45%
464% 54% 45% 39%
555% 46% 39% 33%
647% 39% 33% 28%
740% 34% 28% 24%
Note: This table is for reference only.
Energy Savings Tip #1: To reduce dehumidifier run time, when using the Model 76CR
as an external control, adjust the setting to be as high as is comfortable and when
using the Model 76CR as a remote control, adjust the setting to be as low as is required
for the space. If it feels clammy or “smells damp”, change the setting to allow for drier
conditions.
Energy Savings Tip #2: When using the Model 76CR as an external control, turn
the dehumidifier control OFF when you open your windows, just as you would with air
conditioning.
Energy Savings Tip #3: When using the Model 76CR as an external control, and if
vacating your home for an extended period in the summer, set the RH at 59% and set your
thermostat to as high as you are comfortable setting it in the cooling mode. Consult with
appropriate professionals regarding the highest temperature that is safe for your pets or
possessions. This will keep the humidity at a controlled level to help prevent mold while
minimizing the amount of cooling energy used.
Raise the setting if you prefer the air to be less dry; this will reduce the amount of
time that the dehumidifier runs.
Lower the setting if you prefer the air to be more dry; this will increase the amount
of time that the dehumidifier runs.
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TURNING CONTROL ON/OFF
FIGURE 4 – ON/OFF Buttons
• Pressing the ON button will turn on the control.
• Pressing the OFF button will turn off the control.
• The control will continue to display the measured
humidity when OFF.
• The humidity or dryness level setting cannot be
changed when the control is OFF.
FIGURE 2 – External Control LCD Display
FIGURE 3 – Remote Control LCD Display
90-1636
90-1636
Blinking ON +*: Control Limit Exceeded.
See Control Limits, page 6.
Solid ON:
Control On
Blinking ON:
Dehumidifying
Solid ON:
Control On
Blinking ON:
Dehumidifying
Numbers show
current room humidity
OR humidity setting
Numbers show remote
location humidity OR
dryness level setting
SET is displayed
when or is
pressed. The value
displayed is the
humidity setting.
See Figure 5.
SET is displayed
when or is
pressed. The value
displayed is the
dryness level.
See Figure 7.
OFF: Control Off
OFF: Control Off
LCD DISPLAY
CHANGING THE HUMIDITY OR DRYNESS LEVEL SETTING
FIGURE 7 – Remote Dryness Level
Setting Screen
• The first press of either the or button will display the humidity or dryness level
setting on the LCD.
• Each subsequent push of the up or down
buttons will change the setting by 1% or 1
dryness level.
• If a button is held down, the setting will
continually change by 1% or 1 dryness level
every 1/2 second for as long as the button is
pressed.
• The control will exit the setting screen 5
seconds after the last button press/release.
FIGURE 6 – External Humidity
Setting Screen
90-1637 90-1636
FIGURE 5 – UP/DOWN Buttons
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HOW DOES THE CONTROL WORK?
• When the measured humidity is greater than the setting, the control will turn on the
dehumidifier and ON will blink on the LCD display.
• When the measured humidity falls 3% below the setting, the control will turn off the
dehumidifier and ON will stop blinking.
• The control sends the dryness level to the dehumidifier.
• Once per Cycle Period (set by your installer in the dehumidifier), the dehumidifier will sample
the air in the area served by the dehumidifier.
• If the dew point of the incoming air is above the dryness level, the dehumidifier will turn on
and ON will blink on the LCD display.
• When the dew point of the incoming air falls below the setting, the dehumidifier will turn
off and ON will stop blinking.
EXTERNAL CONTROL – SEQUENCE OF OPERATION
REMOTE CONTROL – SEQUENCE OF OPERATION
EXTERNAL CONTROL
REMOTE CONTROL
• The dehumidifier will turn off if one of the control limits has been exceeded.
• If the control measures a dew point below 40°F OR a temperature above 99°F, the control
will deactivate the dehumidifier output if actively dehumidifying, the dehumidifier will stop
dehumidifying, and ON and *will blink on the LCD screen (see Figure 2).
• The control will resume normal operation when conditions fall back within the control limits.
• The dehumidifier will turn off if one of the control limits has been exceeded.
• If the dehumidifier measures a temperature below 50°F or above 105°F, the dehumidifier
will stop dehumidifying.
• The control will resume normal operation when conditions in the remote space fall back
within the dehumidifier control limits.
CLEANING THE CONTROL
The surface of the Model 76CR Dehumidifier Control can be cleaned with water or a non-
abrasive household cleaner, including glass cleaner. Do not spray any liquid directly onto the
control. Spray water or a cleaner onto a soft cloth and gently wipe the surface of the control.
CONTROL LIMITS
The control limits are used to make sure the dehumidifier does not run when conditions are
outside of the operating limits. Dehumidifiers are not as effective when conditions are outside
of the operating limits. For example, the dehumidifier will not remove much moisture when
conditions are cool and dry. Control limits allow the dehumidifier to work efficiently within the
operating range and turn off when conditions are outside of these limits.
• Dew Point Lower Limit: 40°F External Control
• Temperature High Limit: 99°F External Control
105°F Remote Control
• Temperature Low Limit: 50°F Remote Control
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10012632 B2207788A 2.18
Copyright 2018 CAC / BDP • 7310 W. Morris St. • Indianapolis, IN 46231 Catalog No: OM-76CR-01
Edition Date: 02/18
Manufacturer reserves the right to change, at any time,
specifications and designs without notice and without obligations.