Refrigerant System Diagram; Max - Toshiba MXZ-2DM40VA Service Manual

REFRIGERANT SYSTEM DIAGRAM

7
MXZ-2DM40VA
Refrigerant flow in cooling
Refrigerant flow in heating
Indoor unit
B
Stop valve
(with service port)
Indoor unit
A
Stop valve
(with service port)
Indoor unit
A
Stop valve
(with strainer #100)
Indoor unit
B
Stop valve
(with strainer #100)
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)
950
Calculation: Xg = 20 g/m x (Refrigerant piping length (m) - 20)
Refrigerant pipe diameter is different according to indoor unit to be
connected. When using extension pipes, refer to the right table.
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".
OBH739A
Sub muffler
Capillary tube
LEV A
Capillary tube
LEV B
20 m
30 m
20
30
20 m 30 m
0 200
Compressor
Discharge
temperature
thermistor RT62
Muffler
4-way valve
Indoor
a
units
b
For
Indoor unit A
Indoor unit B
10
Outdoor heat
exchanger
temperature
thermistor
RT68
Defrost
thermistor
RT61
Strainer
#100
Outdoor
unit
UNIT: mm (inch)
Outdoor unit union diameter
Liquid
Gas
Liquid
Gas
UNIT: mm
FAN-OUT
Ambient
temperature
thermistor
RT65

Max.

Height
difference
15 m
15 m
10 m
6.35(1/4)
9.52(3/8)
6.35(1/4)
9.52(3/8)