Sanyo 85464359982001 installation instructions Example, Main tubing Distribution joint tubing

= 3.93 ⋅ (a) + 2.78 ⋅ (b) + 1.99 ⋅ (c) + 1.38 ⋅ (d) + 0.602 ⋅ (e) + 0.279 ⋅ (f)

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1-13. Example of Tubing Size Selection and Refrigerant Charge Amount

Additional refrigerant charging

Based on the values in Tables 1-9, 10, 11, 12 and 15, use the liquid tubing size and length, and calculate the amount of additional refrigerant charge using the formula below.

Required additional refrigerant charge (oz)

(a) : Liquid tubing	Total length of ø7/8" (ft.)	(d) : Liquid tubing	Total length of ø1/2" (ft.)
(b) : Liquid tubing	Total length of ø3/4" (ft.)	(e) : Liquid tubing	Total length of ø3/8" (ft.)
(c) : Liquid tubing	Total length of ø5/8" (ft.)	( f ) : Liquid tubing	Total length of ø1/4" (ft.)

●Charging procedure

Be sure to charge with R410A refrigerant in liquid form.

1.After performing a vacuum, charge with refrigerant from the liquid tubing side. At this time, all valves must be in the “fully closed” position.

2.If it was not possible to charge the designated amount, operate the system in Cooling mode while charging with refrigerant from the gas tubing side. (This is performed at the time of the test run. For this, all valves must be in the “fully open” position. However if only one outdoor unit is installed, a balance tube is not used. Therefore, leave the valves fully closed.)

Charge with R410A refrigerant in liquid form.

With R410A refrigerant, charge while adjusting the amount being fed a little at a time in order to prevent liquid refrigerant from backing up.

●After charging is completed, turn all valves to the “fully open” position.

●Replace the tubing covers as they were before.

CAUTION

Example:

Outdoor unit

1.R410A additional charging absolutely must be done through liquid charging.

2.The R410A refrigerant cylinder has a gray base color, and the top part is pink.

3.The R410A refrigerant cylinder includes a siphon tube. Check that the siphon tube is present. (This is indicated on the label at the top of the cylinder.)

4.Due to differences in the refrigerant, pres- sure, and refrigerant oil involved in installa- tion, it is not possible in some cases to use the same tools for R22 and for R410A.

Balance tube

Use a flathead screwdriver and open by turning the part with the screw groove to the right, from “–” to “”.

Liquid tube

Use a hex wrench (width 5/32 inch) and turn to the left to open.

Gas tube

Use a flathead screwdriver and open by turning the part with the

09053 09053

model model

B A

LB	LC
LA	2	3	4
1

screw groove to the right, from “–” to “”.

● Example of each tubing length	48 model 48 model 48 model	36 model
Main tubing	Distribution joint tubing
LA = 131 ft.	Outdoor side	Indoor side
LB = 16 ft.	A = 7 ft.	1 = 98 ft.
LC = 16 ft.	B = 7 ft.	2 = 16 ft.
		3 = 16 ft.
		4 = 65 ft.

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