Does the sale of VIESSMANN’s air conditioning division fall under investment control?

Heating manu­fac­tu­rer Viess­mann sold its air-condi­­tio­­ning divi­sion, inclu­ding the lucra­tive heat pumps, to US inves­tor Carrier for 12 billion euros. Does this tran­sac­tion fall under the 2017 Foreign Trade and Payments Regu­la­tion, which is inten­ded to better protect German “key technologies.”