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8
REFRIGERANT SYSTEM DIAGRAM
MXZ-24UV -
E1
Unit C gas pipe temperature thermistor
Indoor unit
C
Unit B gas pipe temperature
thermistor
[12
Indoor unit
B
Unit A gas pipe
temperature thermistor
[12
Indoor unit
A
Capillary tube
[3.0 [2.0 200
Indoor unit
A
Strainer
Capillary tube
[3.0 [2.0 200
Indoor unit
B
Strainer
Capillary tube
[3.0 [2.0 200
Indoor unit
C
Strainer
Piping length each indoor unit (a, b, c)
Total piping length (a+b+c)
Height difference between units (H)
Bending point for each unit
Total bending point
It does not matter which unit is higher.
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 BACK COVER.
Indoor unit
class
Pipe diameter
Liquid
6.35(1/4)
07/09
Gas
9.52(3/8)
Liquid
6.35(1/4)
12
Gas
12.7(1/2)
Liquid
6.35(1/4)
18
Gas
15.88(5/8)
Compressor
High pressure
Discharge
switch 1
temperature
High pressure
thermistor
switch 2
Oil
separator
[2.5 [0.6 1000
Ball valve with
service port
[9.52
Reversing valve
Muffler
[16
Ball valve with
[6
service port
LEV
[6
LEV
[6
Distributor
LEV
Extension pipe diameter
Liquid
6.35(1/4)
Gas
9.52(3/8)
Liquid
6.35(1/4)
Gas
12.7(1/2)
Liquid
6.35(1/4)
Gas
15.88(5/8)
[16
Capillary tube
[16
Evaporation
temperature
thermistor
(RT67)
Capillary tube
[2.5 [0.6 750
Defrost
thermistor
[9.52
Strainer
Indoor
units
25m
50m
10m
25
50
c
Indoor unit A
Indoor unit B
Indoor unit C
10
Refrigerant flow in cooling
Refrigerant flow in heating
Reversing valve coil
Accumulator
heating ON
cooling OFF
Strainer
a
b
Outdoor
unit
Outdoor unit union diameter
For
Liquid
Gas
Liquid
Gas
Liquid
Gas
Unit:mm
Outdoor
heat
exchanger
Capillary tube
[4.0 [2.4 400
Distributor
H
H
H
Unit : mm (inch)
6.35(1/4)
12.7(1/2)
6.35(1/4)
12.7(1/2)
6.35(1/4)
9.52(3/8)
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