The difference of heat pump an AC is pretty much just a reversing valve, so as others have noted this is probably not an equivalent unit. One caveat to that is

The difference of heat pump an AC is pretty much just a reversing valve, so as others have noted this is probably not an equivalent unit. One caveat to that is if you have a furnace, they may have wanted to install a full new air handler and run electric emergency heat vs just swapping the coil and condenser. You can configure a heat pump coil with a furnace as the emergency heat but it might take some more thinking than an off the shelf AHU condenser pairing that maybe the contractor wasn't comfortable with doing that.