Amana VXC20 Series, Инструкция по установке и обслуживанию, Страница: 14 / 60

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Dehumidification
Dehumidification requires a thermostat capable of reading
the indoor humidity level and allowing the user to set a
dehumidification target.
The thermostat controls the humidity level of
the conditioned space using the cooling system.
Dehumidification is engaged whenever a cooling demand
is present and humidity levels are above the target level.
When this condition exists, the circulating fan output is
reduced, increasing system run time, over cooling the
evaporator coil and ultimately removing more humidity from
the structure than if only in cooling mode.
The thermostat may also allow for an additional
overcooling limit setting depending on the thermostat
utilized. This allows the cooling system to further reduce
humidity by lowering the temperature below the cooling
setpoint in an attempt to better achieve desired humidity
levels.
Dehumidification Tips
For effective dehumidification operation:
• Ensure “Dehumidification selection” is NOT set to
“OFF”.
• Verify the cooling airflow profile is set to “Profile D”.
- See the Cool Set-up section of the Installation Manual for
complete airflow profile details.
- By default, “Dehumidification selection” is standard and
the cooling airflow profile is set to “Profile D”.
• For additional dehumidification control, airflow settings
are field adjustable and can be fine-tuned to a value
that is comfortable for the application from a range of
Cool Airflow Trim.
• In addition, the system can have Enhanced
Dehumidification operation in setting “A”, “B”,
or “C” of “Dehumidification Selection” based on
dehumidification demand.
- See the DEHUMIDIFICATION SELECT section of the
Installation Manual for more detail.
COMFORTBRIDGE™ SYSTEM
Overview
The ComfortBridge based inverter heating and air
conditioning system uses an indoor unit and outdoor unit
digitally communicating with one another via a two-way
communications path. ComfortBridge is compatible with
any 24 VAC single stage thermostat which sends inputs to
the indoor unit.
Comfortbridge System Advanced Features
The ComfortBridge system permits access to system
information, advanced set-up features, and advanced
diagnostic/troubleshooting features via the control board
push buttons or the CoolCloud HVAC app.
(If using a CTK04 thermostat, please see the addendum
for further instructions.)
Fault Code History
The air conditioner’s diagnostics menu provides access
to the most recent faults. The six most recent faults can
be accessed through the control board seven segment
displays or the CoolCloud mobile app. Any consecutively
repeated fault is stored a maximum of three times.
Example: A leak in the system, low refrigerant charge or an
incompletely open stop valve can cause the unit to flash
error code E15. This error code suggests that the unit is
experiencing operation at low pressure. The control will
only store this fault the first three consecutive times the
fault occurs.
NOTE: The fault list can be cleared after
performing maintenance or servicing the system
to assist in the troubleshooting process.
Device Status
This menu displays information about the systems current
status. This menu can be utilized to confirm correct
functionality of the equipment and for troubleshooting
purposes.
The following items will be displayed:
• Heat Capacity Request Percentage
• Cool Capacity Request Percentage
• Heat Capacity Request During Defrost Percentage
• Dehumidification Request Percentage
• Reversing Valve Status
• Reported Airflow by Indoor Unit
• Boost Mode
• Previous Defrost Run Time
* Information specific to the heat pump is not
displayed.