1-9. 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.

LA

 

 

 

 

 

L1

 

 

 

 

 

 

 

L2

 

 

 

 

 

 

 

 

 

 

Main tube of unit

 

LB

 

LC

 

LD

 

n

 

 

 

 

 

 

 

 

 

1st branch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L3 1

2

 

3

 

n-1

Unit distribution tube

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

H1

H2

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

R410A distribution joint

unit connections and tubing branches.

APR-P160BA (for indoor unit)

Table 1-16 Ranges that Apply to Refrigerant Tubing Lengths and to Differences in Installation Heights

Items

Marks

 

Contents

 

L1

 

Max. tubing length

 

Actual length

 

 

 

 

 

 

Equivalent length

 

 

 

 

 

Allowable tubing

L (L2 – L3)

Difference between max. length and min.

length from the No.1 distribution joint

length

 

 

 

 

 

 

 

 

1, 2... n

 

Max. length of each distribution tube

 

1+ 2 +... n–1

+L1

Total max. tubing length including length of

 

each distribution tube (only narrow tubing)

 

 

 

 

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

 

 

 

 

 

 

 

 

L = Length, H = Height

Length (ft.)

>

 

492

>

574

 

>

131

 

>

98

 

>

656

 

>

164

 

>

131

 

>

49

 

12

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Sanyo 85464359981002 installation instructions Tubing Length, Items Marks Contents

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