Refrigerant System Diagram - Mitsubishi Electric MCFH-13NV-E3 Service Manual

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REFRIGERANT SYSTEM DIAGRAM

MCFH-13NV -
E3
INDOOR UNIT
Indoor
heat
Distributor
exchanger
Coil temperature
thermistor
RT12
Room temperature
thermistor
RT11
MAX. REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE
Model
MCFH-13NV -
E3
MAX. HEIGHT DIFFERENCE
Height difference should be within
5m regardless of which unit,
indoor or outdoor position is high.
ADDITIONAL REFRIGERANT CHARGE (R-22 : g)
Model
MCFH-13NV -
E3
Refrigerant pipe [12.7
(Option)
(with heat insulator)
Stop valve
(with service port)
Flared connection
Flared connection
Stop valve
Refrigerant pipe
(Option) [6.35
(with heat insulator)
Length : m (ft)
A
15(49)
A: Refrigerant piping
Max.length
15m(49ft)
Outdoor unit precharged
1,350
Reversing valve
Muffler
Accumulator
Strainer
Piping size O.D : mm(in.)
Gas
[12.7(1/2)
Refrigerant piping length (one way)
7m 8m 9m 10m
0 100
50 150
8
MUCFH-13NV -
OUTDOOR UNIT
Outdoor
heat
Strainer
exchanger
Compressor
Capillary tube
[3.0 o [1.4 o 500o2
Capillary tube
[3.0 o [1.8 o 200
Refrigerant flow in cooling
Refrigerant flow in heating
Liquid
[6.35(1/4)
11m 12m 13m
200 250 300
Calculation : Xg=50g/mx(A-7)m
E3
Defrost
thermistor
RT61
14m 15m
350 400