Ambient Operating Temperature

Hi everyone, I bought an 2.2kw 220v ER20 80mm 2-pole 400Hz Air-Cooled Spindle for my Onefinity Elite. I was in the middle of insulating my garage doors when I noticed that non of my drywalled garage had any insulation in the walls or ceiling (which I payed for).

My question is what’s the ambient operating temperature I should be running at. I live in San Antonio TX so it gets extremely hot in the summer and It might be awhile until I can garage insulated.