Energy efficient electronic controls and variable speed controllers used as component parts of heating, ventilating and air conditioning equipment

'air':17 'compon':11 'condit':18 'control':4,8 'effici':2 'electron':3 'energi':1 'equip':19 'heat':14 'part':12 'speed':7 'use':9 'variabl':6 'ventil':15

Energy efficient electric motors and variable frequency drives, all used as component parts of heating, ventilating and air conditioning equipment

'air':18 'compon':12 'condit':19 'drive':8 'effici':2 'electr':3 'energi':1 'equip':20 'frequenc':7 'heat':15 'motor':4 'part':13 'use':10 'variabl':6 'ventil':16

VARI-GREEN

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