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7.4 Typical CU Split System Installation
Fig. 7-2
1. Outdoor Unit (Condenser). 6. Return Air Door Grill.
2. Indoor Unit (Evaporator). 7. Return Air Intake Grill.
3. Duct System. 8. Control Unit.
4. Wall Air Diffusers. 9. Inter-Unit Piping and Wiring.
5. Ceiling Air Diffusers.
7.4.1 Indoor and Outdoor Unit Location
The indoor and outdoor units should be installed as close to each other as possible. Do not
exceed the tubing length and height differences as shown in the accompanying table. See
Fig.7-3 for additional information.
Fig. 7-3
Model Maximum Tubing Length Maximum Height Difference Between Units
CU150 30 m 10 m
CU200-CU350 30 m 12 m
CU400-CU500 35 m 13 m
CU600-CU1000 40 m 15 m
CU1200-CU1400 40 m 15 m