79ECY-303 Preloaded Applications
IO Assignments
The IO assignments can easily be found by looking at the ENVYSION application configuration menu
or from an Allure EC-Smart-Vue Sensor.
Figure6: ENVYSION Application Configuration Menu.
To define which IO will be used prior to the installation, the following table must be taken into account.
FAN DO1 is always the fan.
COOL1 DO2 is always Cool1 (Compressor 1).
COOLING STAGE2 TO
COOLING STAGE4
Cool2 to Cool4 are wired from DO3 to DUO5.
REVERSING VALVE
The reversing valve is always wired to the 1st available output after the cooling stages. It can be
wired from DO3 to DUO6 depending on the amount of cooling stages (1 to 4).
HEATING STAGE1 TO
HEATING STAGE3
Heating stages are wired to the next available output after the cooling stages and the reversing valve.
If proportional heating is configured, it will use the last heating stages (1 to 3) and will be wired to the
first available output between DUO6, UO7 and UO8.
DAMPERS The 0-10V or 2-10V dampers will be wired to the first available output between DUO6, UO7 and UO8.
POWER EXHAUST
The power exhaust will be wired to the first available output between DO4, DUO5, DUO6, UO7 and
UO8.
ECONOMISER
ENABLE
The economiser enable will be wired to the first available output between DO4, DUO5, DUO6, UO7
and UO8.
MIN POSITION
ENABLE
The min position enable will be wired to the first available output between DO4, DUO5, DUO6, UO7
and UO8.
HUMIDIFIER
If the humidifier is set to digital, it will be wired to the first available output between DUO5, DUO6,
UO7 and UO8.
If the humidifier is set to 0-10V, 2-10V, or PWM, it will always output on UO8.
The following table can be used to help design the output configuration.
IO Assignments
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