Amana MVC80 Installation Instructions Manual page 24

Dehumidification
Dehumidification allows the furnace's circulator blower to
operate at a reduced speed during a combined thermostat
call for cooling demand with a parallel humidistat. This
lower blower speed increases dehumidification of the
conditioned air as it passes through the indoor coil. The
control board is equipped with a 24 volt dehumidification
input (DH) located on the thermostat wiring connector. The
terminal can be configured to enable dehumidification when
the input is energized or de-energized. When using an
external dehumidistat, connect it between the R and DH
terminals. If the humidistat closes on humidity rise or the
thermostat energizes this terminal when dehumidification is
required, set the control board "" (Dehum Logic) menu
setting to "" using the push buttons or Cool Cloud HVAC
phone application. If the humidistat opens on humidity
rise or the thermostat de-energizes this terminal when
dehumidification is required, set the "" (Dehum Logic)
menu to "" using the push buttons or Cool Cloud HVAC
phone application.
Auxiliary Alarm Switch
The control is equipped with a 24VAC Aux Alarm to be used
for a condensate switch install (designated by CONDENSATE
IN/OUT on the control). By default, the connected AUX switch
is normally closed and opens when the water level in the
evaporator coil base pan reaches an undesirable level. The
control responds by displaying an  error code and turning
off the outdoor condensing unit. If the AUX switch is detected
to be in the closed position for 30 seconds, normal operation
resumes and the error message is no longer displayed.
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uSh utton enu
  
LEFT
The furnace includes three on-board push buttons allowing
users to navigate indoor and outdoor system menus. The
Right and Left buttons allow the user to scroll through the
main menus and to then scroll through available options
within specific menus. The Center button is used to enter into
a main menu and to then permanently select options within
those menus.
CENTER RIGHT
Figure 26
NOTE: After scrolling to the desired option within a menu,
that option may be flashing on the 7-segment displays. This
indicates the option has not been officially selected. Pressing
the Center button two times will select that option. The first
press will stop the flashing. The second will make the selection
official and return you to the main menu.
A
CCeSSorieS
Accessory Control (Humidifiers, Dehumidifiers, Ventilators)
If an external humidifier, dehumidifier or ventilator is installed, it
may require airflow from the HVAC system to function properly.
1) Make sure the installed 24VAC thermostat is capable
of controlling the accessory or accessories.
2) Connect the appropriate accessory control wires to the
accessory devices from the thermostat (see thermostat
manual for connection and setup instructions).
3) If the thermostat is capable of providing a continuous
fan call (G signal) during accessory operation:
Make sure to connect the thermostat G terminal to the G
terminal on the indoor unit. Setup thermostat to ensure
G signal is energized during accessory operation.
4) Select the appropriate fan only airflow for the accessory
using the indoor unit push button menus or the Cool
Cloud HVAC phone application.
5) Using the thermostat, independently test each
accessory in addition to independently testing
continuous fan mode.
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Amping rofileS
The variable-speed circulator offers four different ramping
profiles. These profiles may be used to enhance cooling per-
formance and increaqse comfort level. Select ramping profiles
on the user menu.
Profile A (1) provides only an OFF delay of one (1) minute
at 100% of the cooling demand airflow.
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Figure 27