34 MS-SVN056C-EN
Outdoor Unit Installation
Connecting piping installation
Preparation
Before installing all piping, ensure that refrigerant lines report the height, the length and the
amount of turns specified between the indoor unit and the outdoor unit to comply with the
following pipe diameter requirements:
The unit is factory charged with the appropriate amount of refrigerant. If additional charge is
required, refer to the following table:
Note: The previous table refers to the liquid line.
Note: The amount of turns depends upon the length of maximum height. Normally a
turn is required at each 10m/32.8 pies.
Condensing unit Liquid line (mm/inch) Gas line (mm(inch)
One stage outdoor units
4TTK0512D1000AL Φ6.35 (1/4”) Φ12.7 (1/2”)
4TTK0518D1000AL Φ6.35 (1/4”) Φ12.7 (1/2”)
4TTK0524D1000AL Φ9.52 (3/8”) Φ15.9 (5/8”)
4TTK0536D1000AL
Φ9.52 (3/8”) Φ19 (3/4”)
4TTK0548D1000AL Φ9.52 (3/8”) Φ22 (7/8”)
4TTK0560D1000AL
Φ9.52 (3/8”) Φ22 (7/8”)
4TWK0512D1000AL Φ6.35 (1/4”) Φ12.7 (1/2”)
4TWK0518D1000AL Φ6.35 (1/4”) Φ12.7 (1/2”)
4TWK0524D1000AL Φ9.52 (3/8”) Φ15.9 (5/8”)
4TWK0536D1000AL Φ9.52 (3/8”) Φ19 (3/4”)
4TWK0548D1000AL
Φ9.52 (3/8”)
Φ22 (7/8”)
4TWK0560D1000AL Φ9.52 (3/8”) Φ22 (7/8”)
Three stage outdoor units
4TTK0536D6000AL Φ9.52 (3/8”) Φ19.(3/4”)
4TTK0548D6000AL Φ9.52 (3/8”) Φ22 (7/8”)
4TTK0560D6000AL Φ9.52 (3/8”) Φ22 (7/8”)
4TWK0536D6000AL
Φ9.52 (3/8”)
Φ19 (3/4”)
4TWK0548D6000AL Φ9.52 (3/8”) Φ22 (7/8”)
4TWK0560D6000AL Φ9.52 (3/8”) Φ22 (7/8”)
Liquid line diameter
(mm)
Φ6.35 Φ9.52 Φ12.7
Formula V = 15g/m x (L-5) V = 30g/m x (L-5) V = 65g/m x (L-5)
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