Manufacturer of Quality Air Conditioning and Heating Products • www.islandaire.com • sales@islandaire.com • (800)-886-2759
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The Islandaire VTAC unit is equipped with an electronic system that runs smart control logic with associated sensors.
Built-in safety features protect the unit from the damaging effects of freezing temperatures and power interruptions.
Energy management functionality allows the unit performance to be customized to control its power consumption. Dis-
playing fault codes help personnel quickly diagnose and correct any problems if they occur.
Listed below are the built-in automatic features and a brief description of their functions. See Performance Specifications
section starting on page 40 for full details of all functions
The indoor freeze protection monitoring system prevents
unoccupied rooms from reaching freezing levels that can
damage plumbing and fixtures. This feature is automatic
regardless of mode and does not require any additional
settings. This feature can be turned on or off by adjusting
DIP switch settings on the main control board.
The life of the compressor is extended through built-in
temperature protection. The system will initiate a com-
pressor lockout if the compressor temperature exceeds
154 °F or if the outdoor air temperature falls below 35 °F.
An indoor frost sensor will disable the operation of the
compressor if freezing conditions exist. This protects
the compressor from damage due to airflow reduction
or low outdoor air temperature. When the coil tempera-
ture rises to a safe temperature the compressor resumes
normal operation.
The smart logic control performs self-diagnostic tests
that inform service personnel about possible problems.
Error codes are continuously displayed during trouble-
shooting and maintenance until the problem has been
resolved.
Custom Operation
and Continual Room
Temperature Monitoring
The smart logic control utilizes a built-in sensor for
measuring room temperature. When a pre-determined
(user-defined) set point is reached, smart logic controls
automatically adjusts the unit operation to maintain the
room temperature.
Auto Restart Feature
To prevent multiple units from powering up
simultaneously after a power outage, there will
be a random 5 to 15 second delay before the
unit turns on after power has been restored.
Compressor Short Cycle Protection
Built-in 3 minute timing delay: If cycle is
interrupted, the compressor will not restart for
3 minutes. On all initial power-ups, there is a
one-time, 3 minute time delay before the unit
will function.
System Controls and Management
(Cont.)
