Led Display - Mars Comfort-Aire Century VCD24 SA Series Installation Manual

Installation and Operation Manual - VCDxxSA
Dehumidification control wiring
Dehumidification control requires external
Humidistat at DH and R. Set S4-2 as OFF. When
the humidity rises and exceeds the set value of
the Humidistat, the 24V signal of DH changes
to 0V, the cooling system starts the
dehumidification operation, and the air volume
drops to 80% of the nominal cooling air volume.
UV,fresh air or ion generator wiring
The WORK port is linked with the fan. When the
fan is running, the relay is closed; if an active 24V
signal is required, it can be directly connected to
the G and C ports.
Control logic
Indoor unit connector
Connector

LED display

The control displays unit status as well as any
active fault codes on the LED display. If the unit
is functioning normally, the LED will display
current temperature setpoint. When a fault code
is active, the display will flash quickly the active
fault code. Please refer to the fault code table
located in the troubleshooting section of the
manual for detailed fault code information.
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Purpose