Back Figure 4-7. Block Off Assembly Installation | Up TM-5-4120-377-14 Air Conditioner Horizontal Compact 36 000 BTU/HR Cooling 31 000 BTU/HR Heating 208 Volt 3 Phase 50/60 Hertz Manual | Next Figure 4-9. Remove grille. Alternate Cable Connections Through Return (Intake) Duct |