Samsung 018 Series User & Installation Manual page 15

After connecting the power cable between the indoor/outdoor unit,
attach the cover of component box securely and make sure it is not
loose.
For the power cable, use the grade of H07RN-F or H05RN-F materials.
The unbalanced power must be maintained within 10% of supply
rating among whole indoor units.
If the power is unbalanced greatly, it may shorten the life of the
condenser. If the unbalanced power is exceeded over 10% of supply
rating, the indoor unit is protected, stopped and an error code will
display.
To protect the product from water and possible shock, you should
keep the power cable and the connection cord of the indoor and
outdoor units in NEC approved conduit.
Connect the power cable to the auxiliary circuit breaker.
You must keep the cable in an NEC approved conduit.
Keep distances of 50 mm (2 inch) or more between power cable and
communication cable.
Maximum length of power cable is decided within 10% of power
drop. If it exceeds, you must consider another power supplying
method.
The circuit breaker (MCCB, ELB) should be sized for more capacity, if
many indoor units are connected from one breaker (verify national
electricalal codes).
Use solderless ring terminal to connect the power cable to the power
terminal block.
Use an appropriate screwdriver for tightening the terminal screws.
Over-tightening the terminal screws may break them.
The air conditioner should be used only for the applications for
which it has been designed: the indoor unit is not suitable to be
installed in areas used for laundry.
*NEC:National electrical code
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