Installing Distribution Joint; Optional Distribution Joint Kits - Technibel DSAVM93R5TA Series Installation Manual

WARNING
I 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 outside,
its density does not exceed the limit level.
If the density might exceed the limit level, it is
EG
necessary to set up an opening between it and the adjacent
room, or to install a mechanical ventilation which is interlocked
with the leak detector.
(Total refrigerant charged amount : kg)
Min indoor volume where the
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, please refer
to the unit's nameplate.)
5-3.

Installing Distribution Joint

(1) Refer to "HOW TO ATTACH DISTRIBUTION JOINT"
enclosed with the optional distribution joint kit (DDV
1912, DQV 1910).
(2) G The T-joint (not provided) installation direction should
be either horizontal or vertical. The direction of the
connection port to each indoor must be slanted
slightly upward (15° to 30°) when the main tube is
horizontal and can be any direction but the branch
tube must be slightly upward when the tube is
vertical (L3 shows the length between the first T-joint and
the tube welded end (1 meter or less)).
G Make sure that the end point is solidly welded shut
and that the connection tube, inside the T-joint, doesn't
block the refrigerant flow.
G Never diverge a branch tube again after the T-joint
(that is, there can only be 1 branch in a line)

5-4.Optional Distribution Joint Kits

G
DDV 1912: Cooling capacity after distribution is 16.0 kW (54,600 BTU/h) or less
G
DQV 1910: Cooling capacity after distribution is 16.0 kW (54,600 BTU/h) or less
Distribution Branch Size (l l 1, l l 2, l l 3, l l 4)
Indoor unit type
Wide tube
Narrow tube
NOTE
* In case of 25 type, use the "Tube connector" (accessory supplied with the indoor unit) for sizing up narrow tube from 6.35 to 9.52.
Always check the gas
density for the room in
which the unit is installed.
3
3 )
9 type 12 type
12.7 (1/2)
Minimum indoor volume & floor area as against the amount
of refrigerant is roughly as given in the following table.
2 3
m m
50 135
45 121.5
40 108
35 94.5
30 81.0
25 67.5
20 54.0
15 40.5
10 27.0
5 13.5
CAUTION
Indoor
Slant
15° to 30°
Outdoor
Main tube
≤
Indoor L3 1m
Horizontal
When in horizontal use
18 type 25 type
15.88 (5/8)
9.52 (3/8) *
9
Range below the
density limit of
0,3 kg/m 3
(Contermeasures
not needed
Range above the
density limit of
0,3 kg/m
(Contermeasures
needed
10 20 30 40 kg
Total amount of refrigerant
Pay a special attention to
the place, such as a
basement, etc. where
refrigerant can stay, since
refrigerant is heavier than
air.
Solidly welded shut
Indoor
L3 1 m < –
Indoor
Slant
15° to 30°
Solidly
welded shut
Outdoor
When in vertical use
36 type 48 type
19.05 (3/4)
3
1169_M_I
Can be at
any angle
Indoor
Indoor