Incorporating a refrigerating unit and a valve for reversal of the cooling/heat cycle (reversible heat pumps)

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Free (A,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)

Parent HS6

841581 Air conditioning machines; containing a motor driven fan, other than window or wall types, incorporating a refrigerating unit and a valve for reversal of the cooling/heat cycle (reversible heat pumps)