191VAN Evolution™ Extreme Variable Speed Air Conditioner: Installation Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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NOTE: Evolution™ Connex™ System Control indicates acceptable
conditions for subcool charging mode. Do not use subcooling charge
method if outside 65°F (18°C) and 105°F(40.6°C) outdoor temperature.
Subcool charging mode will not be available if conditions are not
acceptable.
Nominal subcooling targets are found in Table 3 for use as reference or
in specific applications with 25 ft. (7.6 m) lineset, 95°F outdoor
ambient, and 80°F/67°F indoor DB/WB.
Setup for Evolution™ Control Furnace or
FE Fan Coil (Communicating)
This system can only be installed with Evolution™ -capable indoor and
Evolution™ Connex™ System Control using the latest software version.
When using an Evolution™ Connex™ System Control, airflow is
automatically selected based on equipment size. The user has the option
of selecting Comfort, Efficiency and Max airflow for Cooling modes.
These should be selected based on balance between the homeowner's
comfort and energy consumption
expectations. Efficiency airflow is used to meet specified AHRI
performance ratings.
See Evolution™ Connex™System Control Installation Instructions for
additional available adjustments.
Due to using a communicating control with the fan coil or the furnace,
dip switch adjustments are not necessary. The outdoor unit configuration
and the indoor airflows are determined by communicating control setup.
Verify that the PCM, VFD and Evolution™ System Control are using
the latest software before proceeding with the next steps.
Follow these steps to properly start up the system:
1. After system is evacuated, close the disconnects to energize indoor
unit, outdoor unit, and Evolution™ Connex™ System Control. Do
not attempt to operate the system in heating or cooling mode at this
time. Mode: OFF. Vapor and liquid line service valves should be
fully closed.
2. If the outdoor ambient temperature is between 65°F and 105°F and
the indoor temperature is between 65°F and 80°F then the system
may be charged using the subcooling method. At this time, fully
open the liquid and vapor service valves if the subcooling method is
to be used.
3. The Evolution™ Connex™ System Control will proceed through a
series of setup screens. Follow these setup screens to correctly
configure the indoor unit, lineset configuration, climate zone, and
outdoor unit coil material (Fig. 8). Selecting a line in the system
configuration screen will take the user to the respective selection
screen for the line item (Fig. 9 and Fig. 10). "Press to select" in red
letters indicates the line must be pressed and the ODU material type
chosen before learning can continue.
A240369
Fig. 8 – System Configuration Screen
A240351
Fig. 9 – Select Environment and Material
A240350
Fig. 10 – Select Lineset Configuration
4. The Evolution™ Connex™ System Control will advance through
the remaining learning processes including the setup of accessories
such as filter type, UV light, and humidifier. Upon completion of
the setup screens, the equipment summary screen will be presented
(Fig. 11). Verify the correct equipment is shown on this screen.
Next an airflow verification test is executed before returning to the
main screen.
5. Navigate to the “Installation and Service menu” by performing a
long press on the service icon from the main screen (see Fig. 12).
Once in the “Installation and Service” menu, select “Refrigerant
Charging” (see Fig. 13).
Table 2 – Environment Type Guideline
Average Annual Relative Humidity (%) Type
<45 Arid
45 - 65 Semi-Arid
65+ Humid
Table 3 – Standard Subcooling Values
Model Number Subcooling Value
191VAN024 6
191VAN036 6
191VAN048 9
191VAN060 11.5
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