Amana VXC20 Series, Installation & Service Reference

Page: 15 / 60

15
Sensor Data
The following sensor values will be displayed:
• Outdoor Temperature
• Coil Temperature
• Liquid Line Temperature
• Discharge Temperature
• Defrost Sensor
• Suction Pressure
Pump Down / Charge Mode
This function can be enabled in this menu.
* Information specific to the heat pump is not displayed.
Cool Set-up
The system allows for the adjustment of several cooling
performance variables. Cool Airflow Trim (*1), Cool Airflow
Profiles, Cool Fan ON Delay, Cool Fan OFF Delay and
Dehumidification Select (some enable option or off) can
be adjusted in this menu. You can also reset this entire
menu to factory default settings. See the following images
showing the four cooling airflow profiles.
Cooling Airflow Profile
• Profile A provides only an OFF delay of one (1)
minute at 100% of the cooling demand airflow.
• Profile B ramps up to full cooling demand airflow
by first stepping up to 50% of the full demand for
30 seconds. The motor then ramps to 100% of the
required airflow. A one (1) minute OFF delay at 100%
of the cooling airflow.
50% CFM
1/2 min
100% CFM 100% CFM
1 min
OFF
OFF
•
Profile C
ramps up to 82% of the full cooling demand
airflow and operates there for approximately 7 1/2
minutes. The motor then steps up to the full demand
airflow. Profile C also has a one (1) minute 100% OFF
delay.
100% CFM
OFF
OFF
• Profile D (default) ramps up to 50% of the demand
for 1/2 minute, then ramps to 82% of the full cooling
demand airflow and operates there for approximately
7 1/2 minutes. The motor then steps up to the full
demand airflow. Profile D has a 1/2 minute at 50%
airflow OFF delay.
OFF
OFF
Airflow Tables
*1
1. At Cool and Heat Hi speed trim, *VXC200601* with
**VC960804C, **VM970804C and *MVC800804C
combination trim more than 5% settings are invalid.
Trimmed up CFM makes miss matching error.
2. At Cool Hi speed trim, Other than the above,
depending on the connected indoor unit, there are
restrictions on the positive side Trim setting.
If you want to change the Cool Airflow Trim to positive
side, be sure to confirm the Airflow Trim restrictions
in the latest indoor unit installation manual. The
latest manual can be obtained from the website
“PartnerLink(InfoFinderPlus/Literature)”.
[PartnerLink URL]
https://partnerlinkmarketing.goodmanmfg.com/
goodman/info-finder-plus
3. The Inverter system uses lower compressor speed
and lower indoor unit CFM to optimize system
performance. To obtain 100% CFM for home
circulation, use full Trim setting instead of Int/
Low speed. This is recommended for applications
with unusually cold return temperatures such as
basements.
Dehumidification Select
When Dehumidification mode 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 system can have Dehumidification operation in setting
“Standard”, “A”, “B” or “C” of “dehumidify with cooling”
menu based on dehumidification demand.
Setting “Standard” allows for the widest compressor
operation range with lower CFM than Cooling mode.
In the Enhanced Dehumidification (setting A, B and C)
the indoor airflow is lower than Standard Dehumidification
(Standard).
Setting “A” allows for the same compressor operation
range as standard Dehumidification with lower CFM than
standard dehumidification (Standard).
Setting “B” limits compressor operation range and keeps
high dehumidification capacity.