Starting Up The Unit And Sequence Of Operation; Using The Dehumidifier Control Only; Using A Model 76 As A Remote Control; Using An External Control - Aprilaire E080 Installation & Owner's Manual

STARTING UP THE UNIT
AND SEQUENCE OF OPERATION
Ensure unit is plugged in and if equipped use the ON/OFF
power switch near the power cord to apply power to the
dehumidifier.

USING THE DEHUMIDIFIER CONTROL ONLY

1. Press the ON/OFF button to turn the dehumidifier control ON.
The display will show the current humidity setting, and the
dehumidifier blower and HVAC blower (if wired to the HVAC
system) will turn on to start sampling
The setting will be replaced by the measured humidity and
the words AIR SAMPLING appear on the display
2. Use the
or button to adjust the humidity setting as
desired The recommended initial setting is between 55%
and 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 the words AIR SAMPLING will be
replaced by the word 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

USING A MODEL 76 AS A REMOTE CONTROL

1. Press the ON/OFF button to turn the dehumidifier control ON.
The display will show the word REMOTE to indicate that a
remote control is to be used to control 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 range 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 the word 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

USING AN EXTERNAL CONTROL

1. Press the ON/OFF button to turn the dehumidifier control ON.
The display will show the word EXTERNAL to indicate that an
external control is to be used to control the dehumidifier.
2. At the external control, initiate a dehumidification demand.
Refer to the literature provided with the external control
The dehumidifier fan and compressor, and the HVAC fan (if
wired to do so) will turn on and the word DEHUMIDIFYING will
appear on the display of the dehumidifier.
NOTE: When using an external control, there is a three-
minute delay after power-up (ie, ON/OFF power switch is
turned ON with unit plugged in) before the dehumidifier will
respond to an external control This prevents unanticipated,
early start-up after power is applied
3. Discontinue the demand at the external control; the
dehumidifier and HVAC fan will turn off.

TWO-ZONE OPERATION

The Primary Zone operates as listed for using the dehumidifier
control or an external control PRIMARY ZONE shows on the
display when operating
The Secondary Zone uses the humidity setting on the
dehumidifier control. During Secondary Zone operation, the
installed dampers are de-energized and the HVAC blower
(if on) stops SECONDARY ZONE shows on the display when
operating
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 an 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.
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