Infinity® 19VS System matching
This air conditioner unit provides the most customer benefit and highest efficiency when
installed as a complete Infinity system including Infinity Touch Control.
Acceptable system combinations will be listed in the AHRI and in My Carrier Ratings
database on HVACpartners.
For increased system flexibility, and increased replacement opportunities, this outdoor
unit is also designed to work with standard non-communicating thermostat inputs.
Combination ratings are available with some non-communicating 2-stage indoor units
such as the FV4C fan coil and 2-stage furnace/coil combinations. When utilizing this
type of indoor unit, a standard non-communicating 2-stage thermostat is required, and
the system will operate with 2-stage functionality.
Compatibility with existing indoor equipment (also see attached flowchart)
Because this unit is designed to work with communicating or standard thermostat
inputs, it opens up opportunities for replacement applications. However, the indoor
components must be of suitable size and configuration.
Existing Infinity communicating indoor equipment
The 19VS is backward compatible with all Infinity communicating indoor
equipment. However, the old style Infinity wall control is not compatible with the
19VS unit in communicating mode (See Figures 1 and 2). The software in the old
style control will not recognize the outdoor unit. For full system capability with
older indoor equipment, the wall control must be upgraded to the Infinity Touch
control with appropriate software.
Figure 1. Old style control Figure 2. Touch control
Check ratings for system matches with FE fan coil. These ratings can be applied
to old and new FE fan coils units.
Old style control
Not compatible with 19VS
Touch Control
Compatible with 19VS
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