Sanyo XMHX1852, XMHX1252, CHDZR09053, CHDZR14053, 85464369098000 Tubing Length, H3 C

1-5. Tubing Length

Select the installation location so that the length and size of refrigerant tubing are within the allowable range shown

in the figure below.	1.	Main tubing length LM = LA + LB … b 262 ft.
	2.	Main distribution tubes LC – LH are selected according to the capacity after the
		distribution joint.
	3.	Sizes of indoor unit connection tubing 1 – 40 are determined by the connection tubing
		sizes on the indoor units.

H3 C		L2
	LM	L1

	B				T-joint tubing
Balance tubing	LB	LC	LD	LE	(header joint system)
(ø9.52)					L3
	LA
			4	5	6	7	40	H1
Explanation of symbols	LF	For
		extension

Max. 1.3 ft.

Distribution joint

For

extension

(APR: purchased separately)

Max. 1.3 ft.

Solenoid valve kit

H2

LH

Ball valve (field supply)

2

3

T-joint (field supply)

LG

1

Solidly welded shut

L4

R410A distribution joint

(pinch weld)

APR-CHRZP900BAB (for outdoor unit)

Note: Do not use commercially available T-joints for the liquid tubing

and  parts.

APR-RZP224BAB (for indoor unit)

APR-RZP680BAB (for indoor unit)

* Be sure to use special R410A distribution joints (APR: purchased separately) for outdoor

APR-RZP1350BAB (for indoor unit)

unit connections and tubing branches.

Table 1-9 Ranges that Apply to Refrigerant Tubing Lengths and to Differences in Installation Heights

Item	Mark		Contents
	L1		Max. tubing length	Actual length
				Equivalent length
	∃∃L (L2 – L4)		Difference between max. length and min.
			length from the No. 1 distribution joint
Allowable tubing	LM		Max. length of main tubing (at max. diameter)
length
	1, 2... 40		Max. length of each distribution tube
	L1+ 1+ 2 ... 39	+	Total max. tubing length including length of

A+B+LF+LG+LH each distribution tube (only liquid tubing)

	L5	Distance between outdoor units
	H1	When outdoor unit is installed higher than indoor unit
Allowable elevation		When outdoor unit is installed lower than indoor unit
difference	H2	Max. difference between indoor units
	H3	Max. difference between outdoor units
Allowable length of	L3	T-joint tubing (field-supply); Max. tubing length between
joint tubing		the first T-joint and solidly welded-shut end point

L = Length, H = Height

NOTE

Length (ft.)

>	492
>	574
>	131
>	262*2
>	98
>	984
>	32
>	164
>
	131
>	49
>
	13
>	6.6

1:If the longest tubing length (L1) exceeds 295 ft. (equivalent length), increase the sizes of the main tubes (LM) by 1 rank for the discharge tubes, suction tubes, and liquid tubes. (Use a field supply reducer.)

2:If the longest main tube length (LM) exceeds 164 ft., increase the main tube size at the portion before 164 ft. by 1 rank for the suction tubes and discharge tubes. (Use a field supply reducer.)

(For the portion that exceeds 164 ft., set based on the main tube sizes (LA) listed in the table on the following page.)

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W-3WAY_ECO-i_US.indd 11 2008/02/07 10:55:39