Due to our policy of continuous product innovation, some specifications may change without notification.
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Note:
• Make sure that the terminal numbers of master outdoor unit and slave outdoor unit(s) match (A to A, B to B). The system will
malfunction if not properly wired.
• Maintain polarity throughout the communication network. The system will malfunction if not properly wired
• If the system operates in reversed phase, it may break the compressors and other components
• If there is a possibility of reversed phase, phase loss, momentary blackout, or the power goes on and off while the system is
operating, install a field-supplied phase loss protection circuit. Operating the system in reverse phase may break the
compressor and other unit components
WARNING
• Ground wiring is required to prevent accidental electrical shock during current leakage, communication problems from electrical
noise, and motor current leakage.
physical injury or death.
• Install a main shutoff switch that interrupts all power sources simultaneously. There is risk of fire, electric shock explosion,
physical injury or death.
• Communication cable between Master ODU to Slave ODU(s), and Master ODU to DOAS to be 18AWG, 2-conductor, twisted,
stranded, shielded/ Ensure the communication cable shield is properly grounded to the Master ODU chassis only.
ground the ODU to DOAS communication cable at any other point/ Wiring must comply with all applicable local and national
codes. Inadequate connections may generate heat, cause a fire, and physical injury or death
Do not connect the ground line to the pipes. There is risk of fire, electric shock explosion,
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