BHF1357
Outdoor unit multi connection piping kit
4PW38477-1
Installation manual
14
3. I
NSTALLATION
OF
SUCTION
GAS
AND
HP/LP
GAS
PIPES
Cutting the field supplied gas pipes
Use the following tables for standard installation (refer to
"Dimensions for installation" on page 13
If the dimensions exceed these of the standard installation, extend
the L dimension of the suction gas pipes 1~6 and HP/LP gas pipes
1~7 accordingly.
■
For suction gas pipes only
For L dimension of suction gas pipes 1~6 dimension B of the
field supplied angled joint as in table 31 on page 14 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
suction gas pipes 1~6 accordingly.
Table 30
Table 31
■
For HP/LP gas pipes only
For L dimension of HP/LP gas pipes 1~7 dimension B of the field
supplied angled joint as in table 33 on page 14 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 1~7 accordingly.
Table 32
Table 33
Cutting suction gas reducer (1) and HP/LP gas
reducer (2)
Connection piping
■
Connect the suction gas and HP/LP 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 reducer (1) and (2).
■
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.
■
Refer to
"Pipe size selection and cutting position of joints." on
for the cutting requirements.
Outdoor
unit (Hp)
Pipe 1
L(mm)
Pipe 2
L(mm)
Pipe 3
L(mm)
Pipe 4
L(mm)
Pipe 5
L(mm)
Pipe 6
L(mm)
34
212
199
164
168
102
244
36+38 212
195
164
168
168
244
40
212
195
160
168
168
232
42
212
195
164
168
168
244
44~48
212
195
160
168
168
232
Outdoor unit
Joint (angle of 90°) (field supply)
Joint 1
B (mm)
Joint 2
B (mm)
Joint 3
B (mm)
34 Hp
29
23
23
36+38
Hp
29 29 23
40 Hp
29
29
29
42 Hp
29
29
23
44~48
Hp
29 29 29
Outdoor
unit (Hp)
Pipe 1
L (mm)
Pipe 2
L (mm)
Pipe 3
L (mm)
Pipe 4
L (mm)
Pipe 5
L (mm)
Pipe 6
L (mm)
Pipe 7
L (mm)
34~40
217
206
176
97
73
233
64
42+44
217
200
176
97
97
233
64
46+48
217
200
170
97
97
221
52
Outdoor unit
Joint (angle of 90°) (field supply)
Joint 4
B (mm)
Joint 5
B (mm)
Joint 6
B (mm)
34~40
Hp
23 17 17
42+44
Hp
23 23 17
46+48
Hp
23 23 23
L
B
B
L
B
B
Suction gas
reducer (1)
Unit A
Suction gas
reducer (1)
Unit B
1
Connection to suction gas pipe 4
(field supply)
2
Connection to suction gas
joint (1)
3
Cutting position
4
Connection to suction gas pipe 5
(field supply)
5
Connection to suction gas
joint (2)
6
Connection to HP/LP gas pipe 4
(field supply)
7
Connection to HP/LP gas
reducer (1)
8
Connection to HP/LP gas pipe 5
(field supply)
9
No cutting for 34~40 Hp
HP/LP gas
reducer (2)
Unit A
HP/LP gas
reducer (2)
Unit B
1
Suction gas joint (1)
2
HP/LP gas joint (1)
3
Joint 1 (angle of 90°) (field supply) refer to table 31 on page 14
4
Suction gas pipe (4) (field supply) refer to table 30 on page 14
5
Suction gas reducer (1)
6
HP/LP gas reducer (2)
7
Suction gas pipe (field supply) (select the pipe length on site)
8
Joint (4) (angle of 90°) (field supply) refer to table 33 on page 14
9
Suction gas pipe (1) (field supply) refer to table 30 on page 14
10
HP/LP gas pipe (1) (field supply) refer to table 32 on page 14
11
Suction gas accessory pipe (1) supplied with the outdoor unit
12
HP/LP gas accessory pipe (1) supplied with the outdoor unit
13
HP/LP gas pipe (4) (field supply) refer to table 32 on page 14
14
HP/LP gas reducer (1)
15
HP/LP gas pipe (field supply) (select the pipe length on site)
16
Joint (2) (angle of 90°) (field supply) refer to table 31 on page 14
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
40
°
2
1
A
29 28
34
33
32
31
28
30 28
26
27
27
15
7
5 6
18
17
19
14
20
25
24
23
22
21
16
15
5
2
6
1
4
3
7
12
11
10
9
8
14
13
A
0
°±
15
view
0
°±
15
