Design Of Tubing Length - Sanyo SPW-C0705DZH8 Technical Data Manual

1. Model Selecting and Capacity Calculator

1-3. Design of 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.
Balance tubing
(ø9.52)
1
Explanation of symbols
Distribution joint
(APR: purchased separately)
2
Ball valve (field supply)
T-joint (field supply)
Solidly welded shut
(pinch weld)
Note: Do not use commercially available T-joints for the liquid tubing
3
* Be sure to use special R410A distribution joints (APR: purchased separately) for outdoor unit connections and tubing branches
*1 The connection between the indoor unit(s) and the solenoid valve kit(s) has three (3) types of methods. For further details,
refer to the Section 2. 3-4. "Connecting Multiple Indoor Units to a Single Solenoid Valve Kit".
Ranges that Apply to Refrigerant Tubing Lengths and to Differences in Installation Heights
Items
4
Allowable tubing
5
length
6
Allowable elevation
difference
7
Allowable length of
joint tubing
L = Length, H = Height
8
1.
2.
The outdoor connection main tubing (LO portion) is determined by the total capacity of the outdoor
3.
units that are connected to the tube ends.
4.
Max. 40cm
Max. 40cm
Marks
L1 Max. tubing length
Difference between max. length and min.
L (L2 – L4)
length from the No.1 distribution joint
LM Max. length of main tubing (at max. diameter)
, ~
Max. length of each distribution tube
1 2 40
+ +~
L1+ Total max. tubing length including length of
2
1 40
each distribution tube (only narrow tubing)
+ +
+LF+LG+LH
A B
Distance between outdoor units
L5
When outdoor unit is installed higher than indoor unit
H1
When outdoor unit is installed lower than indoor unit
H2 Max. difference between indoor units
H3 Max. difference between outdoor units
T-joint tubing (field-supply); Max. tubing length between
L3
the first T-joint and solidly welded-shut end point
>
Main tubing length LM = LA + LB ...
Main distribution tubes LC – LH are selected according to the capacity after the
distribution joint.
Sizes of indoor unit connection tubing 1 – 40 are determined by the connection
tubing sizes on the indoor units.
For
extension
For
extension
and parts.
Contents
Actual length
Equivalent length
2-4
Design of 3-WAY ECO-i SYSTEM
80 m
T-joint tubing
(header joint system)
*1
Solenoid valve kit
R410A distribution joint
Length (m)
>
150
>
175
> 40
> *3
80
>
30
>
300
>
10
>
50
>
40
>
15
>
4
>
2
.