16
●
Refrigerant pipe diameter is different according to indoor unit to be connected. When using extension pipes,refer to the
tables below.
●
When diameter of refrigerant pipe is different from that of outdoor unit union, use optional Different-diameter pipe.
For further information on Different-diameter pipe,see page 128.
●
Please connect the indoor unit and the outdoor unit as shown in the table below.
Indoor unit
Extension pipe diameter
class
Pipe diameter
Liquid
1/4
Liquid
1/4
09
Gas
3/8
Gas
3/8
Liquid
1/4
Liquid
1/4
12
Gas
1/2
Gas
1/2
Liquid
1/4
Liquid
1/4
15/17
Gas
5/8
Gas
5/8
Outdoor unit union diameter
For
Liquid
1/4
Indoor unit A
Gas
1/2
Liquid
1/4
Indoor unit B
Gas
3/8
Liquid
1/4
Indoor unit C
Gas
3/8
Unit : inch
Piping length each indoor unit (a, b, c)
82ft. MAX.
Total piping length (a+b+c)
200ft. MAX.
Height difference between units (H)
33ft. MAX.
Bending point for each unit
25 MAX.
Total bending point
60 MAX.
❋
It does not matter which unit is higher.
a
b
c
Outdoor
unit
Indoor
units
H
H
H
MAX. REFRIGERANT PIPING LENGTH & PIPE SIZE SELECTION
MXZ30TN MXZ30TN2
Liquid
{
1/4
Gas
{
3/8
Liquid
{
1/4
Gas
{
1/2
Liquid
{
1/4
Gas
{
5/8
Liquid
{
1/4
Gas
{
3/8
Liquid
{
1/4
Gas
{
1/2
Liquid
{
1/4
Gas
{
5/8
Use a different-diameter pipe of the option
MAC-455JP (
{
1/2
➔
{
3/8)
Use a different-diameter pipe of the option
MAC-456JP (
{
1/2
➔
{
5/8)
Indoor unit can be connected directly
Indoor unit can be connected directly
Use a different-diameter pipe of the option
MAC-454JP (
{
3/8
➔
{
1/2)
It is not possible to connect
09
12
15/17
09
12
15/17
Outdoor unit
A
Liquid
{
1/4
Gas
{
1/2
B, C
Liquid
{
1/4
Gas
{
3/8
Indoor unit
Connection method
Cooling
Heating
Maximum
Minimum
Maximum
Minimum
Indoor intake air temperature
95˚FDB, 71˚FWB
67˚FDB, 57˚FWB
80˚FDB, 67˚FWB
70˚FDB, 60˚FWB
Outdoor intake air temperature
115˚FDB
67˚FDB
75˚FDB, 65˚FWB
17˚FDB, 15˚FWB
Operating Range
MXZ30TN MXZ30TN2
OB275--1.qxp 03.12.2 16:49 Page 16