Mitsubishi Electric Mr. SLIM MSZ-FA25VA Technical Manual página 417

MXZ-2A40VA -
E2
R.V. coil
Refrigerant flow in cooling
OFF
ON Refrigerant flow in heating
ø 9.52
Indoor unit
B
Stop valve
(with service port)
ø 9.52
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 does not matter which unit is higher.
Outdoor unit
Refrigerant piping length (one way, 2 unit total)
precharged
(g)
1,150
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 6.35(1/4)
22/25/35
Gas 9.52(3/8)
ø 9.52
Capillary tube
ø 3.0✕ø 2.0✕ 200
ø 6
LEV A
Capillary tube
ø 3.0✕ø 2.0✕ 200
ø 6
LEV B
30m
20m
0 200
Extension pipe diameter
Liquid 6.35(1/4)
Gas 9.52(3/8)
ø 9.52
Compressor
Discharge
temperature
thermistor RT62
Muffler
4-way valve
ø 9.52
ø 9.52
Outdoor heat
exchanger
temperature
thermistor
RT68
ø 9.52
Indoor
a
units
20m
30m
20
30
b
For
Indoor unit A
Indoor unit B
Esquemas frigorífi cos
FAN-OUT
Ambient
temperature
thermistor
RT65
Defrost
thermistor
RT61
Strainer
#100
Outdoor
unit
15m
10m
Unit : mm (inch)
Outdoor unit union diameter
Liquid 6.35(1/4)
Gas 9.52(3/8)
Liquid 6.35(1/4)
Gas 9.52(3/8)
Unit:mm
15m
417