Allied 4DHV Mini-Split Series - Outdoor Unit Connections and Line Set Usage

508067-01 Issue 2016 Page 13 of 75
Outdoor Unit Connections and Line Set Usage
Description
Catalog
No.
Size
09 12 18 24 36
OUTDOOR UNIT
Line Sets
1/4 in. x 3/8 in. x 25 ft. 90X53 • N/A
1/4 in. x 3/8 in. x 50 ft. X0258 • N/A
1/4 in. x 1/2 in. x 25 ft. 90X52 N/A • • N/A
1/4 in. x 1/2 in. x 50 ft. X0259 N/A • • N/A
3/8 in. x 5/8 in. x 25 ft. X8406 N/A • •
3/8 in. x 5/8 in. x 50 ft. X8407 N/A • •
Table 2. Outdoor Unit Connections and Line Set Usage
Indoor Unit
Extension Pipe Diameter (mm/inches)
Model Pipe Diameter (mm/inches)
9K
Liquid 6.35 (1/4) Liquid 6.35 (1/4)
Gas 9.52 (3/8) Gas 9.52 (3/8)
12K and 18K
Liquid 6.35 (1/4) Liquid 6.35 (1/4)
Gas 12.7 (1/2) Gas 12.7 (1/2)
24K
Liquid 9.52 (3/8) Liquid 9.52 (3/8)
Gas 15.9 (5/8) Gas 15.9 (5/8)
36K
Liquid 9.52 (3/8) Liquid 9.52 (3/8)
Gas 15.9 (5/8) Gas 15.9 (5/8)
Table 3. Pipe Diameter - MM (Inches)
Refrigerant pipe diameter is di󰀨erent according to indoor unit to be connected. When using the extension pipe, refer to
Table 4.
When refrigerant pipe diameter is di󰀨erent from that of the outdoor unit connector (18K indoor unit) an additional adapter
is required.
CAUTION
Outside Diameter Torque Additional Tightening
MM Inches v.cm N.cm
Ф6.35 1/4 1500 (153kgf.cm) 1600 (163kgf.cm)
Ф9.52 3/8 2500 (255kgf.cm 2600 (265kgf.cm)
Ф12.7 1/2 3500 (357kgf.cm) 3600 (367kgf.cm)
Table 4. Torque Requirements