Hi jojo.
Thank you for reaching out regarding your Samsung - 7.2 Cu. Ft. Electric Dryer with 8 Cycles if this is compatible with a 220 wiring. Regarding your concern, Most U.S. dryers require a 120 / 240 volt, 60 Hz AC-approved electrical service. Some require 120 / 208 volt, 60 Hz approved electrical service. The electric service requirements can be found on the data label located behind the door. A 30-ampere fuse or circuit breaker on both sides of the line is required.
• If a power cord is used, the cord should be plugged into a 30-ampere receptacle.
• The power cord is NOT provided with U.S. electric model dryers.
• Grounding through the neutral conductor is prohibited for
(1) new branch-circuit installations,
(2) mobile homes,
(3) recreational vehicles, and (4) areas where local codes prohibit grounding through the neutral conductor. (Use a 4-prong plug for a 4-wire receptacle, NEMA type 14-30R.)
I suggest you check this link to your user manual for assistance. Please go to page 13.
https://downloadcenter.samsung.com/content/UM/201909/20190913052051286/DV3000J_DC68-03170N-10_EN_CFR_MES.pdf
Should you need more assistance, please feel free to get back to us via the following options:
1. Facebook Messenger: http://m.me/samsungsupport
2. Twitter: https://twitter.com/messages/compose?recipient_id 18768513
3. Samsung Community: https://us.community.samsung.com/t5/Samsung-Community/ct-p/us
Reference Ticket Number: 1144643129
Thank you for being a valued customer of Samsung. Have a great day.
^Camille