Wiring an A/C unit, making from in my panel

[Selfish]

I am looking to install an A/C unit. (3.5 ton York)
I believe I need a 30 amp breaker.
My panel is full but I have two beaker spots I will not use that are next to each other. My plan would be to pull those and replace them with the new 30 amp.
Do I need to pull a permit?
Location Edmonton, AB

 

[Megawatt]

I am looking to install an A/C unit. (3.5 ton York)
I believe I need a 30 amp breaker.
My panel is full but I have two beaker spots I will not use that are next to each other. My plan would be to pull those and replace them with the new 30 amp.
Do I need to pull a permit?
Location Edmonton, AB

The HVAC folks should draw the permit and he can add you to it. Yes you will need a 30 amp double pole breaker for the air. You didn’t mention that is it gas or electric heat, if it’s electric you will also need a 50 amp double pole breaker using # 6 wire. If there is not a GFCI receptacle within 25 feet you will need to install one