BHF1357
Outdoor unit multi connection piping kit
4PW38477-1
Installation manual
16
I
N
CASE
OF
BOTTOM
PIPING
1. E
XTERIOR
2. I
NSTALLATION
OF
SUCTION
GAS
AND
HP/LP
GAS
PIPES
Cutting the field supplied and unit suppled gas pipes
■
For suction gas pipes only
For L dimension of suction gas pipe 1, dimension B of the field
supplied angled joint as in table 25 on page 11 has been taken
into account. Further, connection of gas pipes and the field
supplied straight size joints are of the type without stoppers. If
dimension B of the angled joint you use is different from that
dimension B and/or if the straight size joints have stopppers,
adjust the L dimension of suction gas pipe 1 accordingly.
Table 35 (for outdoor unit C)
■
For HP/LP gas pipes only
For L dimension of HP/LP gas pipes 1~3, dimension B of the
field supplied angled joint as in table 27 on page 12 has been
taken into account. Further, connection of gas pipes and the
field supplied joints for same diameter are of the type without
stoppers. If dimension B of the angled joint you use is different
from that dimension B and/or if the joints for same diameter
pipes have stopppers, adjust the L dimension of HP/LP gas
pipes 1~3 accordingly.
Table 36
Cutting suction gas reducer (1), (2) and (3) and HP/LP
gas reducer (2) and (3)
Be sure to foresee enough space for brazing and piping
work under the unit.
1
Liquid pipe
3
Suction gas pipe
2
HP/LP gas pipe
4
Equalizer pipe
Suction gas accessory
pipe (3)
(delivered with the unit)
Suction gas pipe 1
(field supply)
Outdoor unit
B (mm)
L (mm)
34~38 Hp
0
(b)
137
40~46 Hp
0
(b)
102
48 Hp
41
98
a = cutting position
b = no cutting required
85
109
107
168
310
A
A
A
A
A
A
A
detail
A
A
A
A
A
A
A
49
4
4
4
4
4
B
a
L
Outdoor unit
Pipe 1
L (mm)
Pipe 2
L (mm)
Pipe 3
L (mm)
(field supply) (field supply) (field supply)
34~44 Hp
155
86
94
46+48 Hp
119
110
82
Suction gas
reducer (1)
Unit A
Suction gas
reducer (1)
Unit B
1
Connection to suction gas
accessory pipe 1
2
Connection to suction gas
joint
(1)
3
Cutting position
4
Connection to suction gas
accessory pipe 2
5
Connection to suction gas
joint (2)
6
Connection to suction gas pipe
(field supply)
7
Connection to suction gas
joint (2)
8
No cutting for 34~40 Hp
Suction gas
reducer (2)
Suction gas
reducer (3)
HP/LP gas
reducer (2)
Unit A
HP/LP gas
reducer (2)
Unit B
HP/LP gas
reducer (3)
1
Connection to HP/LP gas
pipe 1
2
Connection to HP/LP gas
reducer (1)
3
Cutting position
4
Connection to HP/LP gas
pipe 2
5
No cutting for 34~40 Hp
6
Connection to HP/LP gas
pipe (field supply)
7
Connection to HP/LP gas
joint (2)
8
No cutting for 34+36 Hp
L
34~48 Hp
1
2
3
34 Hp
36~48 Hp
4
5
3
42~48 Hp
6
7
34~38+42 Hp
40+44~48 Hp
6
3
3
8
7
4
3
5
42~48 Hp
2
5
6
3
38~42 Hp
44~48 Hp
1
3
34~48 Hp
2
7
