The warranty period of your replacement unit will follow the warranty period of your original product purchase, so it depends on when your original unit was first purchased.
For example, based on your proof of purchase, you originally purchased your Ionmax product in January 2021. It was then replaced in February 2021.
The original warranty for the replacement unit was for 1 year, i.e. until January 2022.
Because your Ionmax product was originally purchased in 2021, it is eligible for the updated 2-year warranty.
Therefore your replacement unit will have 2 years warranty starting from the original purchase date, and will be covered for warranty until January 2023.