Sanyo 85464359981002 installation instructions Straight Equivalent Length of Joints

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			Unit: ft.
Gas tubing size (in. (mm))	1/2" (12.7)	5/8" (15.88)	3/4" (19.05)
90° elbow	1	1.1	1.4
45° elbow	0.8	0.9	1
U-shape tube bend (R2-3/8" – 4" (60 – 100))	3	3.4	4.1
Trap bend	7.5	9.2	10.5
Y-branch distribution joint	Equivalent length conversion not needed.
Ball valve for service	Equivalent length conversion not needed.

Table 1-12 Required Copper Tubing Dimensions						Unit: in. (mm)
Material				O
Copper tube	Outer diameter	1/4 (6.35)	3/8 (9.52)	1/2 (12.7)	5/8 (15.88)	3/4 (19.05)
	Wall thickness	1/32 (0.8)	1/32 (0.8)	1/32 (0.8)	5/128 (1.0)	over 5/128 (1.0)

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	Amount of refrigerant
(in. (mm))	charge (oz/ft.)
ø1/4" (ø6.35)	0.279
ø3/8" (ø9.52)	0.602

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.

Table 1-14 Refrigerant Charge Amount at Shipment (for outdoor unit)

Heat pump unit (Single-phase)

(oz)

CHX03652	CHX06052
123	123

1-8. System Limitations

Table 1-15 System Limitations

Outdoor units (Type)	CHX03652	CHX06052
Number of max. connectable indoor units	6	9
Max. allowable indoor/outdoor capacity ratio	50 – 130%

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