How do I change the orientation of a block using a button?

So I have a model with a primary part. I can change the CFrame perfectly. But I'm trying to figure out how to change Orientation, Here is the script I have.

local float = workspace:WaitForChild("Float1")
local targetcframeup = CFrame.new(67.761, 11.58, -12.985)

script.Parent.ClickDetector.MouseClick:Connect(function()
	for i = 0,800,.01 do
    	local cf = float.PrimaryPart.CFrame:Lerp(targetcframeup,i)
    	float:SetPrimaryPartCFrame(cf)
    	wait(.01)
	end
end)