Install Instructions

SINGLE ZONE WHOLE HOUSE OR STAND ALONE USING
THE DEHUMIDIFIER CONTROL
1. Press the ON/OFF button to turn the dehumidifier control ON� The
display will show the current setting, and the dehumidifier blower
and HVAC blower (if wired to the HVAC system) will turn on to
start sampling the air�
The setting will be replaced by the measured humidity and AIR
SAMPLING will show on the display�
2. Use the
or button to adjust the humidity setting as
desired� The recommended initial setting is 59%�
3. After three (3) minutes of sampling, the measured humidity will be
compared to the setting:
a. If the humidity is above the setting, the dehumidifier
compressor turns on and AIR SAMPLING will be replaced
by DEHUMIDIFYING� The compressor remains on until the
measured humidity falls 3% RH below the setting�
b. If the measured humidity is below the setting, the blowers turn
off and the display returns to showing the RH setting�
4. The dehumidifier will sample again every 60 minutes, or at any
time if the humidity setting is lowered�
SINGLE ZONE WHOLE HOUSE OR STAND ALONE USING
MODEL 76 EXTERNAL CONTROL
1. Press the ON/OFF button to turn the dehumidifier control ON�
EXTERNAL will show on the display to indicate that an external
control is wired to the dehumidifier�
2. At the Model 76, press the ON button; the Model 76 will display the
measured RH�
3. Use the
or button on the Model 76 to adjust the humidity
setting as desired� The recommended initial setting is 59%�
4. If the RH measured by the Model 76 rises above the setting,
the dehumidifier will turn on as will the HVAC blower (if wired
to the HVAC system)� DEHUMIDIFYING will appear on the
dehumidifier control display to show that the Model 76 is calling
for dehumidification� The dehumidifier and HVAC blower (if on)
will turn off when the RH measured by the Model 76 drops 3% RH
below the setting�
CRAWL SPACE OR SEALED ATTIC (REMOTE) CONTROL
USING MODEL 76
1. Press the ON/OFF button to turn the dehumidifier control ON�
REMOTE will show on the display to indicate that a remote control
is wired to the dehumidifier�
2. At the Model 76, press the ON button; the Model 76 will display the
RH measured at the dehumidifier, and the dehumidifier blower will
turn on to start sampling the air�
3. Use the
or button on the Model 76 to adjust the dryness
level as desired� The dryness levels are from 1 to 7, with 1 being
least dry and 7 being most dry; the recommended initial setting
is3�
4. After three (3) minutes of sampling, the measured humidity will be
compared to the setting:
a. If the humidity is above the setting, the dehumidifier
compressor turns on and ON flashes on the Model 76 display�
b. If the measured humidity is below the setting, the dehumidifier
blower turns off�
5. The dehumidifier will sample again every 60 minutes, or at any
time if the dryness level is increased�
TWO ZONE – PRIMARY AND SECONDARY
1. Press the ON/OFF button to turn the dehumidifier control ON�
Dehumidification of the Primary Zone follows the same sequence
as described to the left for Single Zone, with or without a Model
76 external control installed in the Primary Zone� The dehumidifier
control display will show PRIMARY ZONE in addition to that
described to the left when sampling or dehumidifying the
Primary Zone� The zone dampers are energized when sampling or
dehumidifying the Primary Zone�
2. The Secondary Zone uses the humidity setting on the dehumidifier
control� During Secondary Zone sampling or dehumidification, the
zone dampers are de-energized and the HVAC blower (if on) stops�
SECONDARY ZONE will show on the dehumidifier control display
when the Secondary Zone is either sampling or dehumidifying� If
the Primary Zone had just finished a dehumidification demand, the
compressor will continue to run during Secondary Zone sampling
to prevent short cycling of the compressor�
The Secondary Zone is sampled immediately after the Primary
Zone has finished sampling, or if there is a call for dehumidification
from the Primary Zone, immediately after the call has been
satisfied� When a Model 76 external control is installed, the
Secondary Zone will be sampled once per hour if there has not
been a call for dehumidification from the Primary Zone� Secondary
Zone sampling will also occur whenever the setting on the
dehumidifier control is lowered�
START UP AND SEQUENCE OF OPERATION
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