1-58183. HOW TO INSTALL THE INDOOR UNIT■ 4-Way Cassette Type (Type U2)Preparation for SuspendingThis unit uses a drain pump. Use a carpenter’s level to checkthat the unit is level.Suspending the Indoor Unit(1) Fix the suspension bolts securely in the ceiling usingthe method shown in the diagrams, by attaching themto the ceiling support structure, or by any other methodthat ensures that the unit will be securely and safelysuspended.Note: For DC Fan Tap Change Procedure for 4-WayCassette, see page 1-348.Hole-in-anchorHole-in-plug Concrete InsertSuspension bolt(M10 or 3/8")(field supply)Drain outlet (other side)(VP25)Suspension lug* Over 20 mm * Over 20 mm340 mm840 mm950 mm272 mm 50 mmRefrigerant tubing joint (liquid side)Refrigerant tubing joint (gas side)184 mm134 mm33.5 mm177 mmType 100 ~ 140: 319 mmType 36 ~ 71: 256 mm127 mmIndoor UnitView from topA: 700 mmA: 780 mmB: 860 ~ 910 mmA: (suspension bolt pitch)B: (ceiling opening dimension)B: 860 ~ 910 mm(2) Follow the diagram to make the holes in the ceiling.(3) Determine the pitch of the suspension bolts using the supplied full-scale installation diagram (printed on container box).The diagram show the relationship between the positions of the suspension fitting, unit, and panel.Use the nut (field supply) and washer (supplied) for upper and lower position of the suspension lug.* The overlapping portion between the ceiling and panel for cassette should be kept over 20 mm.11. HOW TO INSTALL THE INDOOR UNIT4-Way Cassette Type (Type U2)AMP Air Conditioningwww.ampair.co.uk | sales@ampair.co.uk
