Sanyo SPW-C1155DXHN8 Technical Data & Service Manual page 14

1. Model Selecting and Capacity Calculator
1-3. 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.
H3
Balance tubing
( 6.35)
Explanation of symbols
Distribution joint
1
(APR: optional parts)
Ball valve (field supply)
T-joint (field supply)
Solidly welded shut
2
(pinch weld)
Note: Do not use commercially available T-joints for the liquid tubing
* Be sure to use special R410A distribution joints (APR: optional parts)
for outdoor unit connections and tubing branches.
3
Table 1-1 Ranges that Apply to Refrigerant Tubing Lengths and to Differences in Installation Heights
Item
4
Allowable tubing
length
5
Allowable elevation
difference
6
Allowable length of
joint tubing
L = Length, H = Height
NOTE
1: The outdoor connection main tubing (LO portion) is determined by the total capacity of the outdoor units that are connected
7
to the tube ends.
2: If the longest tubing length (L1) exceeds 90 m (equivalent length), increase the sizes of the main tubes (LM) by 1 rank for
gas tubes and liquid tubes. (Use a field supply reducer.) (Select the tube size from the table of main tube sizes (Table 1-3) on
the following page (LA table), and from the table of refrigerant tubing sizes (Table 1-8) on the second following page.)
8
1. Main tubing length LM = LA + LB ...
2. Main distribution tubes LC – LH are selected according to the capacity after the distri-
bution joint.
3. The outdoor connection main tubing (LO portion) is determined by the total capacity of the
outdoor units that are connected to the tube ends.
4. Sizes of indoor unit connection tubing L1 – L40 are determined by the connection tub-
ing sizes on the indoor units.
L5
C
LM
B A
LO
LB
LA
LF
Max. 40cm
Max. 40cm
LG
L4
Mark
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)
1, 2~ 40 Max. length of each distribution tube
L1 + 1 + 2~ 39 + A Total max. tubing length including length of each distribution
+ B + LF + LG + LH tube (only liquid tubing)
L5 Distance between outdoor units
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 the
L3
first T-joint and solidly welded-shut end point
Design of W-2WAY ECO-i SYSTEM Unit Specifications
L1
L2
LC LD
4 5
For
extension
For
extension
LH
3
2
1
and
Contents
2-4
80 m
L3
H1
40
39
38
H2
parts.
Length(m)
Actual length 150
Equivalent length 175
40
80*³
30
300
10
50
40
15
4
2