Field Wiring - Samsung AM072BXV Series Service Manual

Wiring Diagram

6-6 Field Wiring

Electrical wiring work
• Connect a power cable of the outdoor unit after checking that R-S-T (3 phase 3 wire) is properly connected.
• Malfunction may occur if one or more of the wires among R-S-T phases (3 Phases-3 Wires) are not connected properly.
(*Malfunction: Turning on/off, occurrence of error, consecutive reset)
• Communication cable between indoor and outdoor units and communication cable between outdoor units has no polarity.
• Arrange the cables with a cable tie.
※ ELCB and ELB must be installed since there is risk of electric shock or fire when they are not installed.
• Caution for electrical work
– You must install ELCB or MCCB + ELB
– ELCB: Earth leakage breaker
– MCCB: Molded case circuit breaker
– ELB: Earth leakage breaker
– Do not operate the outdoor unit before completing the refrigerant pipe work.
– Do not disconnect or change the cable inside the product. It may cause damage to the product.
– Specification of the power cable is selected based on following installation condition; culvert installation/ ambient temperature 30℃
(86 ℉ )/ single multi conductor cables. If the condition is different from the ones stated, please consult an electrical installation
expert and re-select the power cable.
– If the length of power cable exceed 50m (164.04ft), re-select the power cable considering the voltage drop.
– Use a power cable made out of incombustible material for the insulator (inner cover) and the sheath (outer cover).
– Do not use the power cable with the core wire exposed due to insulator damage occurred during removal of the sheath. When the
core wire is exposed, it may cause fire.
Samsung Electronics
Exposed wire core
<The example of exposed core wire>
Insulator (inner cover)
Sheath (outer cover)
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