Mitsubishi Electric Mr. SLIM MSZ-FA25VA Technical Manual página 416

Esquemas frigorífi cos
MXZ-2A40VA -
E1
R.V. coil
OFF
ON
Indoor unit
B
Indoor unit
A
Indoor unit
Indoor unit
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 does not matter which unit is higher.
Outdoor unit
Refrigerant piping length (one way, 2 unit total)
precharged
(g)
1,300
Calculation : Xg=20g/mx(Refrigerant piping length(m)-20)
● Refrigerant pipe diameter is different according to indoor unit to be connected. When using extension pipes,refer to the
tables below.
Indoor unit
class Pipe diameter
Liquid
22/25/35
Gas
416
MXZ-2A52VA
Refrigerant flow in cooling
Refrigerant flow in heating
ø 9.52
Stop valve
(with service port)
ø 9.52
Stop valve
(with service port)
Capillary tube
ø 3.0✕ø 2.0✕ 200
A ø 6
LEV A
Stop valve
(with strainer #100)
Capillary tube
ø 3.0✕ø 2.0✕ 200
ø 6
B
LEV B
Stop valve
(with strainer #100)
20m 30m
200
0
Extension pipe diameter
6.35(1/4) Liquid
9.52(3/8) Gas
Compressor
Discharge
temperature
thermistor RT62
Muffler
4-way valve
ø 12
ø 12
Indoor
units
20m
30m
20
30
6.35(1/4)
9.52(3/8)
ø 12
ø 12
Outdoor heat
exchanger
temperature
thermistor
RT68
ø 3.0✕ø 1.4✕600 (4 pcs)
Strainer
#100
Distributor
ø 9.52
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
Defrost
thermistor
RT61
Capillary tube
15m
15m
10m
Unit : mm (inch)
6.35(1/4)
9.52(3/8)
6.35(1/4)
9.52(3/8)