22
REFRIGERANT SYSTEM DIAGRAM
7
Strainer
#100
Power
receiver
LEV A
LEV B
LEV C
Oil separator
Compressor
Defrost
thermistor
RT61
Distributor
Muffler
4-way valve
LEV E
Indoor unit
C
Indoor unit
B
Indoor unit
A
Indoor unit
A
Indoor unit
B
Indoor unit
C
Capillary tube
Capillary tube
Capillary tube
Capillary tube
Capillary tube
Discharge
temperature
thermistor RT62
Strainer
#100
Strainer
#100
Strainer
#100
R.V. coil
OFF
ON
Refrigerant flow in cooling
Refrigerant flow in heating
Ambient
temperature
thermistor
RT65
Outdoor heat
exchanger
temperature
thermistor
RT68
FAN-OUT
HEX-OUT
Strainer
#100
Stop valve with
service port
Stop valve
High-pressure switch
(MXZ-3B68VA only)
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, refer to "PARTS CATALOG".
UNIT: mm (inch)
UNIT: mm
MXZ-3C54VA
MXZ-3C68VA
MAX REFRIGERANT PIPING LENGTH
Indoor unit
Extension pipe diameter
class
Pipe diameter
15/20/22/
25/35/42
Liquid
6.35(1/4)
Liquid
6.35(1/4)
Gas
9.52(3/8)
Gas
9.52(3/8)
50
Liquid
6.35(1/4)
Liquid
6.35(1/4)
Gas
12.7(1/2)
Gas
12.7(1/2)
60
(MXZ-3C68VA)
Liquid
6.35(1/4)
Liquid
6.35(1/4)
Gas
15.88(5/8)
Gas
15.88(5/8)
Outdoor unit union diameter
For
Indoor unit A
Liquid
6.35(1/4)
Gas
9.52(3/8)
Indoor unit B
Liquid
6.35(1/4)
Gas
9.52(3/8)
Indoor unit C
Liquid
6.35(1/4)
Gas
9.52(3/8)
a
b
c
Outdoor
unit
Indoor
units
15m
10m
15m
Refrigerant piping length (one way, 3 unit total)
Calculation : Xg = 20 g/m x (Refrigerant piping length (m) - 40)
Max.
Height
difference
Outdoor unit
precharged
(g)
50m
200
60m
400
40m
0
2,700
It is irrelevant which unit is higher.
ADDITIONAL REFRIGERANT CHARGE
3C54
3C68
Piping length each indoor unit (a, b, c)
25m
25m
Total piping length (a+b+c)
50m
60m
Bending point for each unit
25
25
Total bending point
50
50
Содержание MXZ-3C54VA
Страница 16: ...16 WIRING DIAGRAM 6 MXZ 3C54VA ...
Страница 17: ...17 MXZ 3C68VA ...
Страница 18: ...18 MXZ 4C71VA ...
Страница 19: ...19 MXZ 4C80VA ...
Страница 20: ...20 MXZ 5C100VA ...
Страница 21: ...21 MXZ 6C120VA ...