Quoting: sensibleguy
You keep leaning towards the negative. Why would the Senators invite Logan Brown to camp? That would necessitate putting him on waivers and losing him.
NHL teams usually invite everyone under contract to the main camp, so they all get placed on waivers at some point unless they make the team. Not being invited to camp means the player wasn't recalled, which means he doesn't need waivers. Unless you can find specific CBA language that states otherwise, then that would be the rule that would be followed.
If a team has decided to trade a player, then they would take the same approach as pulling him from games to make sure he didn't get injured. Every other GM would understand why he wasn't invited to camp, and his value would not be affected whatsoever.
Article 13.2
The playing season waiver period begins 12 days prior to the start of the regular season and ends on the day following the last day of a club's playing season.
A player may be loaned upon fulfilling the following conditions:
a) Regular waivers were requested and cleared during the playing season waiver period
b) (The games/days requirement that resets waiver eligibility)
There's no such thing as "recalling" a player in the off-season. Every player is under contract with the NHL team. They are only loaned to other leagues. In order to be loaned for the season, they must clear waivers after they open for the new playing season.
Logan Brown is not currently under contract, so he's in limbo. Like I said, when he does sign, he would have to be placed on waivers in order to be loaned to the AHL (sent down).