37
Indoor unit type
Pipe size (mm)
(kW)
Liquid
Gas
22
[
6.35
[
9.52
25
[
6.35
[
9.52
35
[
6.35
[
9.52
50
[
6.35
[
12.7
60
[
6.35
[
15.88
71
[
9.52
[
15.88
15
[
6.35
[
9.52
18
[
6.35
[
9.52
20
[
6.35
[
9.52
42
[
6.35
[
9.52
■ Pipe size (Branch box-Indoor unit) For M or S series Indoor unit
Indoor unit type
Pipe size
(mm)
(kW)
Liquid
Gas
35
[
6.35
[
12.7
50
[
6.35
[
12.7
60
[
9.52
[
15.88
71
[
9.52
[
15.88
100
[
9.52
[
15.88
■ Pipe size (Branch box-Indoor unit) For P series Indoor unit
Pipe size
(mm)
Liquid
Gas
[
9.52
[
15.88
■ Pipe size (Branch box-Indoor unit) For Cylinder unit and Hydrobox
When using 35, 50 type indoor unit of P series, use the flare nut (for R410A) attached to the indoor unit.
Do not use the flare nut (for R407C) in the indoor unit accessory. If it is used, a gas leakage or even a pipe extraction may occur.
For liquid
For gas
[
9.52 mm
[
15.88 mm
A
UNIT
B
UNIT
C
UNIT
D
UNIT
E
UNIT
Liquid pipe
Gas pipe
Liquid pipe
Gas pipe
Liquid pipe
Gas pipe
Liquid pipe
Gas pipe
Liquid pipe
Gas pipe
[
6.35 mm
[
9.52 mm
[
6.35 mm
[
9.52 mm
[
6.35 mm
[
9.52 mm
[
6.35 mm
[
9.52 mm
[
6.35 mm
[
12.7 mm
* 3- branch type is only for
A
,
B
, and
C
unit.
*
*
*
[
6.35mm
[
9.52mm
[
12.7mm
[
15.88mm
[
19.05mm
Conversion formula
1/4 inch
3/8 inch
1/2 inch
5/8 inch
3/4 inch
(1) Valve size for outdoor unit
(2) Valve size for branch unit
Different-diameter joint (optional parts)
Fig.7-1
Fig.7-2
MAC-A454JP
MAC-A455JP
MAC-A456JP
PAC-493PI
PAC-SG76RJ-E
PAC-SG78RJB-E
PAC-SG79RJB-E
PAC-SG80RJB-E
PAC-SG77RJB-E
PAC-SG76RJB-E
{
9.52
→
{
12.7
{
12.7
→
{
9.52
{
12.7
→
{
15.88
{
6.35
→
{
9.52
{
9.52
→
{
15.88
{
9.52
→
{
12.7
{
12.7
→
{
9.52
{
12.7
→
{
15.88
{
6.35
→
{
9.52
{
9.52
→
{
15.88
{
9.52
{
12.7
{
12.7
{
6.35
{
9.52
{
9.52
{
12.7
{
12.7
{
6.35
{
9.52
{
12.7
{
9.52
{
15.88
{
9.52
{
15.88
{
12.7
{
9.52
{
15.88
{
9.52
{
15.88
Connected pipes diameter
mm
Diameter A
mm
Diameter B
mm
Model name
A
B
Type
Flare
(Fig.7-1)
Braze
(Fig.7-2)
A (Outside)
B (Inside)
OCH632A
