Sanyo CHDZR14053, XMHX1252, XMHX1852, CHDZR09053 Refrigerant tubing Existing tubing can be used

Table 1-13 Indoor Unit Tubing Connection Size ( 1 – 40)									in. (mm)
Indoor unit type		7	9		12	18	24	36	48
Total system horsepower		0.8	1		1.3	2	3	4	5
Distribution	Suction tubing					ø5/8"
						(ø15.88)
joint –
	Discharge tubing					ø1/2"
solenoid valve						(ø12.70)
kit tubing	Liquid tubing					ø3/8"
						(ø9.52)
Solenoid valve	Gas tubing			ø1/2"				ø5/8"
kit – Indoor			(ø12.70)					(ø15.88)
unit tubing
	Liquid tubing			ø1/4"				ø3/8"
connection
				(ø6.35)				(ø9.52)

*1: For the solenoid valve kits, use type 160 with parallel specifications. Branch the tubing before and after the solenoid valve kits.

1-7. Straight Equivalent Length of Joints

Design the tubing system by referring to the following table for the straight equivalent length of joints.

Table 1-14 Straight Equivalent Length of Joints

Gas tubing size (in.(mm))	1/2"		5/8"	3/4"	7/8"	1"	1-1/8"	1-1/4"	1-1/2"
	(12.7)		(15.88)	(19.05)	(22.22)	(25.4)	(28.58)	(31.8)	(38.1)
90ooelbow		1 ft.	1.1 ft.	1.4 ft.	1.6 ft.	1.7 ft.	1.9 ft.	2.3 ft.	2.6 ft.
		(0.30 m)	(0.35 m)	(0.42 m)	(0.48 m)	(0.52 m)	(0.57 m)	(0.70m)	(0.79 m)
45ooelbow		0.8 ft.	0.9 ft.	1 ft.	1.2 ft.	1.3 ft.	1.4 ft.	1.7 ft.	1.9 ft.
		(0.23 m)	(0.26 m)	(0.32 m)	(0.36 m)	(0.39 m)	(0.43 m)	(0.53 m)	(0.59 m)
U-shape tube bent		3 ft.	3.4 ft.	4.1 ft.	4.7 ft.	5.1 ft.	5.6 ft.	6.9 ft.	7.8 ft.
(R2–23/64–3–15/16 in.)		(0.90 m)	(1.05 m)	(1.26 m)	(1.44 m)	(1.56 m)	(1.71 m)	(2.10 m)	(2.37 m)
Trap bend		7.5 ft.	9.2 ft.	10.5 ft.	12.5 ft.	14.1 ft.	15.4 ft.	16.4 ft.	14.0 ft.
		(2.30 m)	(2.80 m)	(3.20 m)	(3.80 m)	(4.30 m)	(4.70 m)	(5.00 m)	(5.80 m)
Y-branch distribution joint				Equivalent length conversion not needed.

Ball valve for service

Equivalent length conversion not needed.

Table 1-15 Refrigerant tubing (Existing tubing can be used.)

Tubing size (in. (mm))

Material O			Material 1/2H • H
ø1/4" (ø6.35)		t1/32 (t0.8)
ø3/8" (ø9.52)		t1/32 (t0.8)	ø1-1/8" (ø28.58)	t5/128 (t1.0)
ø1/2" (ø12.7)		t1/32 (t0.8)	ø1-1/4" (ø31.75)	t3/64 (t1.1)
ø5/8" (ø15.88)		t5/128 (t1.0)	ø1-1/2" (ø38.10)	over t3/64 (t1.15)
ø3/4" (ø19.05)	over t5/128 (t1.0)		ø1-5/8" (ø41.28)	over t3/64 (t1.20)
ø7/8" (ø22.22)		t5/128 (t1.0)

*When bending the tubes, use a bending radius that is at least 4 times the outer diameter of the tubes.

In addition, take sufficient care to avoid crushing or damaging the tubes when bending them.

1-8. Additional Refrigerant Charge

Additional refrigerant charge amount is calculated from the liquid tubing total length as follows.

Table 1-16-1 Amount of Refrigerant Charge Per ft., According to Liquid Tubing Size

Liquid tubing	ø1/4"	ø3/8"	ø1/2"	ø5/8"	ø3/4"	ø7/8"
size	(ø6.35)	(ø9.52)	(ø12.7)	(ø15.88)	(ø19.05)	(ø22.22)
Amount of
refrigerant	0.279	0.602	1.38	1.99	2.78	3.93
charge (oz/ft.)

Required amount of charge = Necessary Amount of Refrigerant Charge Per Unit (14053 Type) + (Amount of refrigerant charge per ft. of each size of liquid tube

⋅its tube length) + (...) + (...)

*Always charge accurately using a scale for weighing.

Table 1-16-2 Necessary Amount of Refrigerant Charge Per Unit

CHDZ09053	CHDZ14053
CHDZR09053	CHDZR14053
—	113 oz/unit

13

W-3WAY_ECO-i_US.indd 13 2008/02/15 12:29:03