I'd be pissed if they sent me a 722 NON-K to replace my K model. I've got the OTA module to receive/record 2 OTA's as well as get OTA on tuner 2.
Ed
A few years ago, I spoke with an elevated CSR (Executive Offices or whatever the name is today) and such an issue like your came up, and he said that if a customer CURRENTLY has a 722K--AND makes the point that they have invested in an OTA module and expect a 722K like they currently have (because if you aren't using the OTA feature, it seems Dish feels free to just send out the RMA on whatever they have 722 or K, that is the ONLY instance in which they can guarantee a 722K replacement as part of RMA, but you have to CURRENTLY have a 722K. However, if a customer currently has a 722, Dish may replace it with either a 722 or 722K. If one currently has a 722, he had no way of (in the system) of guaranteeing/forcing a 722K if that customer wanted that instead of the 722. I think he said a customer can do a Dish n' it up upgrade from 722 to a 722K and get the 722K status, as it were, but that would cost money, of course, the only way to guarantee a 722K to replace a 722, at least that was the case a few years ago.
Bottom line sounds like unless a customer CURRENTLY has a 722K, Dish views the 722 and 722K's as interchangeable for RMA's. It sounds like Dish wants/needs to send out WHATEVER they have when the RMA is approved, or at least it is EASIER for Dish that way, UNLESS the customer has a 722K already and it helps to inform Dish that you have paid for the module and expect to use it. Then in that case, Dish seems to go to the trouble of guaranteeing a 722K for the RMA. Make sense? I hope so.
I'll ad in my case some years ago, when I needed one of my 722K's replaced, I specifically pointed out to the CSR that I've invested in the OTA dual tuner module and use the OTA feature and that I EXPECT a 722K, not a 722, and the CSR said something like, "Oh, yes. We will send a 722K". She made it clear it would be a 722K, and they understood. True to their word, I got a 722K, and then I installed my OTA module and off to the races. It was a very pleasant experience. It was a 722K I owned, to boot.
OP, if you get sent a 722, I would contact DIRT here and point out that you have spent money on the OTA module (I hope you removed it before sending the box in) and that you expect to get a 722K just like you had and NOT a 722. DIRT can probably resolve that for you. Let us know what happens.