BHF1357
Outdoor unit multi connection piping kit
4PW38477-1
Installation manual
12
■
For HP/LP gas pipes only
For L dimension of HP/LP gas pipes 1, 2, 3 and 4, dimension B
of the field supplied angled joint as in table 27 on page 12 has
been taken into account. If dimension B of the angled joint you
use is different from that dimension B, adjust the L dimension of
HP/LP gas pipes 1, 2, 3 and 4 accordingly.
Table 26
Table 27
Cutting suction gas reducer (1) and HP/LP gas
reducer (2)
Connection piping
■
Connect the suction gas and HP/LP gas pipes as shown in the
figure below.
Before connecting the pipes, first connect the suction gas joint
and the suction gas reducer (1), the HP/LP gas joint and the
HP/LP gas reducers (1) and
(2).
■
See
"Dimensions for installation" on page 11
(height) of the joint.
■
Refer to the installation manual delivered with the outdoor unit for
cautions on brazing pipes .
■
Keep the joint in a horizontal position, see view
A
in the figure
below.
■
Connect the HP/LP gas reducer (1) by tilting it ±50° and connect
the HP/LP gas reducer (2), see view
A
in the figure below.
■
Refer to
"Pipe size selection and cutting position of joints." on
for the cutting requirements.
4. I
NSTALLATION
OF
LIQUID
PIPES
AND
EQUALIZER
PIPES
Cutting the field supplied equalizer pipes
Use the following tables in case dimension A is 318 mm (refer to
"Dimensions for installation" on page 11
If dimension A exceeds 318 mm, extend the L dimension of the
equalizer pipes 1 and 2 accordingly.
For L dimension of equalizer pipes 1 and 2, dimension B of the field
supplied angled joint as in table 29 on page 12 has been taken into
account. If dimension B of the angled joint you use is different from
that dimension B, adjust the L dimension of the equalizer pipes 1 and
2 accordingly.
Table 28
Table 29
Outdoor unit
Pipe 1
L (mm)
Pipe 2
L (mm)
Pipe 3
L (mm)
Pipe 4
L (mm)
34~40 Hp
80
67
262
59
42+44 Hp
80
97
262
59
46+48 Hp
80
97
256
47
Outdoor unit
Joint (angle of 90°) (field supply)
B (mm)
34~44 Hp
17
46+48 Hp
23
Suction gas
reducer (1)
Unit A
Suction gas
reducer (1)
Unit B
1
Connection to suction gas pipe 1
(field supply)
2
Connection to suction gas
joint (1)
3
Cutting position
4
Connection to suction gas pipe 2
(field supply)
5
Connection to suction gas
joint
(2)
6
Connection to HP/LP gas pipe 1
(field supply)
7
Connection to HP/LP gas
reducer (1)
8
Connection to HP/LP gas pipe 2
(field supply)
9
No cutting for 34~40 Hp
HP/LP gas
reducer (2)
Unit A
HP/LP gas
reducer (2)
Unit B
L
B
B
34~48 Hp
1
2
3
34 Hp
36~48 Hp
4
5
3
8
3
9
42~48 Hp
7
6
3
34~48 Hp
7
1
Suction gas joint (1)
2
HP/LP gas joint (1)
3
Suction gas pipe (field supply) (select the pipe length on site)
4
HP/LP gas reducer (1)
5
HP/LP gas pipe (field supply) (select the pipe length on site)
6
Suction gas pipe (1) (field supply) refer to table 24 on page 11
7
HP/LP gas reducer (2)
8
Suction gas reducer (1)
9
HP/LP gas pipe (1) (field supply) refer to table 26 on page 12
10
Suction gas accessory pipe (1) supplied with the outdoor unit
11
HP/LP gas accessory pipe (1) supplied with the outdoor unit
12
Suction gas joint (2)
13
HP/LP gas joint (2)
14
Suction gas pipe (2) (field supply) refer to table 24 on page 11
15
HP/LP gas pipe (2) (field supply) refer to table 26 on page 12
16
Suction gas accessory pipe (2) supplied with the outdoor unit
17
HP/LP gas accessory pipe (2) supplied with the outdoor unit
18
Joint (1) (angle of 90°) (field supply) refer to table 25 on page 11
19
HP/LP gas pipe (4) (field supply) refer to table 26 on page 12
20
Joint (2) (angle of 90°) (field supply) refer to table 27 on page 12
21
HP/LP gas pipe (3) (field supply) refer to table 26 on page 12
22
Suction gas accessory pipe (3) supplied with the outdoor unit
23
HP/LP gas accessory pipe (3) supplied with the outdoor unit
24
Suction gas pipe (3) (field supply) refer to table 24 on page 11
Equalizer pipe
Joint (angle of 90°)
Pipe 1 (L mm) Pipe 2 (L mm)
B (mm)
95
60
17
A
50
°
1
2
24
20 21
4 7
13
23
22
19
18
6
5
3
8
12
14 15 16 17
9 10 11
4 5
2 3
7
1
8
A
0
°±
15
0
°±
15
view
L
B
B