Final answer:
The exact number of air-conditioned units that Windsor Resort opened with is unknown without additional context. The question seems related to a case study or business fact that would require reference to the specific material it pertains to.
Step-by-step explanation:
The question about Windsor Resort and its number of air-conditioned units upon opening on June 1 is related to business facts, possibly for a case study or a practical business situation in a homework exercise. Without additional context or a provided source, the exact number of air-conditioned units Windsor Resort opened with cannot be determined. If there is a specific passage, book, or case study that this question relates to, you would need to refer to that text to find the correct answer.