Straight Equivalent Length Of Joints; Additional Refrigerant Charge; System Limitations - Sanyo Mini ECO-i 85464359981002 Installation Instructions Manual

1-6. Straight Equivalent Length of Joints

Design the tubing system by referring to the following table for the straight equivalent length of joints.
Table 1-11 Straight Equivalent Length of Joints
Gas tubing size (in. (mm))
90° elbow
45° elbow
U-shape tube bend (R2-3/8" – 4" (60 – 100))
Trap bend
Y-branch distribution joint
Ball valve for service
Table 1-12 Required Copper Tubing Dimensions
Material
Outer diameter
Copper tube
Wall thickness

1-7. Additional Refrigerant Charge

Additional refrigerant charge amount is calculated from the liquid tubing total length as follows.
Table 1-13 Amount of Refrigerant Charge Per Meter, According to Liquid Tubing Size
Liquid tubing size
(in. (mm))
ø1/4" (ø6.35)
ø3/8" (ø9.52)
Table 1-14 Refrigerant Charge Amount at Shipment (for outdoor unit)
Heat pump unit
(Single-phase)
(oz)

1-8. System Limitations

Table 1-15 System Limitations
Outdoor units (Type)
Number of max. connectable indoor units
Max. allowable indoor/outdoor capacity ratio
1/2" (12.7)
1
0.8
3
7.5
Equivalent length conversion not needed.
Equivalent length conversion not needed.
1/4 (6.35) 3/8 (9.52)
1/32 (0.8) 1/32 (0.8)
Amount of refrigerant
charge (oz/ft.)
0.279
0.602
CHX03652 CHX06052
123
CHX03652
Unit: ft.
5/8" (15.88) 3/4" (19.05)
1.1 1.4
0.9 1
3.4 4.1
9.2 10.5
O
1/2 (12.7) 5/8 (15.88)
1/32 (0.8) 5/128 (1.0)
Required amount of charge = (Amount of refrigerant
charge per meter of each size of liquid tube × its tube
length) + (...) + (...)
*Always charge accurately using a scale for weighing.
123
CHX06052
6 9
50 – 130%
11
Unit: in. (mm)
3/4 (19.05)
over 5/128 (1.0)