Can a 17kW HeatSeeker heat pump go in a spacious Pump Room?

The 17kW Vertical HeatSeeker heat pump is designed with a large fan at the top, which draws air up through the entire unit, utilizing the side grills for air intake. Although it may seem suitable for a spacious pump room, the manufacturer's instructions specifically state that this heat pump is intended for outside installation only. Installing it inside could lead to the air around the unit cooling rapidly, causing the heat pump to malfunction and not operate correctly.