Dear Chou san,
Thanks.
According to information from sales engineer who is person in charge for Adeka Japan, their test profile requires +25C/45%RH continuous operation.
As you may know, in case of +25oC/45%RH continuous operation, frost on refrigerating circuit is created, which caused malfunction of the refrigerating circuit.
Depends on the continuous time, it may necessary applying particular option, called non-frost mechanism.
Please let me recommend their test profile for safety sake.
Best regards K. Ichihara