Installing Distribution Joint - Sanyo 3-WAY ECO-i SPW-C0705DZH8 Instructions D'installation

WARNING
Always check the gas density limit for the room in which
the unit is installed.
1-11. Check of Limit Density
When installing an air conditioner in a room, it is necessary to
ensure that even if the refrigerant gas accidentally leaks out, its
density does not exceed the limit level for that room.
If the density could exceed the limit level, it is necessary to
provide an opening between the unit and the adjacent room,
or to install mechanical ventilation which is interlocked with the
leak detector.
(Total refrigerant charged amount: kg)
(Min. indoor volume where indoor unit is installed: m
< Limit density 0.3 (kg/m
The limit density of refrigerant which is used in this unit is
0.3 kg/m 3 (ISO 5149).
The shipped outdoor unit comes charged with the amount of
refrigerant fixed for each type, so add it to the amount that
is charged at the field. (For the refrigerant charge amount at
shipment, refer to the unit's nameplate.)
Minimum indoor volume & floor area as against the amount of
refrigerant is roughly as given in the following table.
2 3
m m
100 270.0
95 256.5
90 243.0
85 229.5
Range below the
80 216.0
density limit of
75 202.5
0.3 kg/m
70 189.0 (Countermeasures
not needed)
65 175.5
60 162.0
55 148.5
50 135.0
45 121.5
40 108.0
35 94.5
30 81.0
25 67.5
20 54.0
15 40.5
20
CAUTION
Pay special attention to any location, such as a basement,
etc. where leaking refrigerant can accumulate, since
refrigerant gas is heavier than air.

1-12. Installing Distribution Joint

(1) Refer to "HOW TO ATTACH DISTRIBUTION JOINT"
enclosed with the optional distribution joint kit (APR-
CHRZP680BGB, CHRZP1350BGB, RZP224BGB,
RZP680BGB, RZP1350BGB).
(2) When creating a branch using a commercially available
T-joint (header joint system), orient the main tubing so that
it is either horizontal (level) or vertical. In order to prevent
accumulation of refrigerant oil in stopped units, if the main
tubing is horizontal then each branch tubing length "B"
should be at an angle that is greater than horizontal. If the
main tubing is vertical, provide a raised starting portion for
each branch.
When only one indoor unit is connected to the side of "A",
install part "A" at a positive angle (15-30º) for the field
tubing as shown in the figure.
3 )
3
Range above
the density limit
of 0.3 kg/m 3
(Countermeasures
needed)
30 40 50 60 70
Total amount of refrigerant
[Header joint system]
● Be sure to solidly weld shut the T-joint end (marked
by "X" in the figure). In addition, pay attention to the
insertion depth of each connected tube so that the flow
of refrigerant within the T-joint is not impeded.
● When using the header joint system, do not make
further branches in the tubing.
● Do not use the header joint system on the outdoor unit side.
(3) If there are height differences between indoor units or if
branch tubing that follows a distribution joint is connected
to only 1 unit, a trap or ball valve must be added to that
distribution joint. (When adding the ball valve, locate it
within 40 cm of the distribution joint.)
(Consult with SANYO separately concerning the ball valve.)
If a trap or ball valve is not added, do not operate the
system before repairs to a malfunctioning unit are
3 )
completed. (The refrigerant oil sent through the tubing
to the malfunctioning unit will accumulate and may
damage the compressor.)
Tube branching methods (horizontal use)
Arrow view D
B
view D
Outdoor
80 kg
Ball valve
(BV: purchased
separately)
Main tubing
Indoor unit is directed downward
12
A
B
Arrow view C
A
Header joint system (Indoor)
Install at a positive angle
Indoor
Indoor
Horizontal
line
Indoor
L3 < 2 m
Horizontal
line
Types of vertical trap specifications
(When using ball valve)
Main tubing
Indoor unit (more than 2 units)
(If only 1 unit is connected, a ball
valve is also needed on this side.)
Indoor unit (1)
(When not using ball valve)
Horizontal
Indoor unit
Branch tubing is
directed upward.
More than
20 cm
B
A
Horizontal
line
View as seen
from arrow
view C
Install at a
positive angle
(15 – 30°)
Solidly welded
shut (X)
(Each unit is connected
to tubing that is either
level or is directed
downward.)