Refrigerant System Diagram - Mitsubishi Electric MXZ-2D33VA Service Manual

REFRIGERANT SYSTEM DIAGRAM

7
MXZ-2D33VA
R.V. coil
Refrigerant flow in cooling
OFF
ON Refrigerant flow in heating
Indoor unit
B
Stop valve
(with service port)
Indoor unit
A
Stop valve
(with service port)
Indoor unit
A
Indoor unit
B
MAX REFRIGERANT PIPING LENGTH
Piping length each indoor unit (a, b)
Total piping length (a+b)
Bending point for each unit
Total bending point
It is irrelevant which unit is higher.
ADDITIONAL REFRIGERANT CHARGE
Outdoor unit
Refrigerant piping length (one way, 2 unit total)
precharged
(g)
1,150
WHEN CONNECTING TO MFZ-KJ SERIES INDOOR UNIT
MXZ-2D33VA - / /
E2 ER2 ET2
No. of
Refrigerant piping length (L)
MFZ-KJ
indoor units
None Charge-less (1,150 g)
1 unit 100 g additional charge (1,250 g)
2 units Not available
Refrigerant pipe diameter is different according to indoor unit to be connected. When using extension pipes, refer to the
table below.
OBH626F
Sub muffler
Capillary tube
LEV A
Stop valve
(with strainer #100)
Capillary tube
LEV B
Stop valve
(with strainer #100)
15 m
20 m
15
20
20 m
0
Maximum amount
of refrigerant
~ 20 m
Compressor
Discharge
temperature
thermistor RT62
Muffler
4-way valve
Indoor
units
1,150 g
1,250 g
-
50
Outdoor heat
exchanger
temperature
thermistor
RT68
Defrost
thermistor
RT61
Strainer
#100
a
Outdoor
unit
b
Outdoor unit union diameter
For
Liquid
Indoor unit A
Gas
Liquid
Indoor unit B
Gas
UNIT: mm
FAN-OUT
Ambient
temperature
thermistor
RT65
Max.
Height
difference
10 m
10 m
10 m
UNIT: mm (inch)
6.35(1/4)
9.52(3/8)
6.35(1/4)
9.52(3/8)