Refrigerant System Diagram - Mitsubishi Electric Mr.Slim MUZ-FD09NA Service Manual

6

REFRIGERANT SYSTEM DIAGRAM

MUZ-FD09NA MUZ-FD12NA
Refrigerant pipe ø3/8
(with heat insulator)
Flared connection
Flared connection
Refrigerant pipe 1/4
(with heat insulator)
MAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFFERENCE
Model
MUZ-FD09NA
MUZ-FD12NA
ADDITIONAL REFRIGERANT CHARGE (R410A : oz.)
NOTE : Refrigerant piping exceeding 25 ft. requires additional refrigerant charge according to the calculation.
Model Outdoor unit precharged
MUZ-FD09NA
MUZ-FD12NA
NOTE : Refrigerant piping exceeding 25 ft. requires additional refrigerant charge according to the calculation.
Muffler
Stop valve
(with service port)
Stop valve
(with strainer)
Capillary tube
O.D. 0.118
× 9-7/16
(ø3.0 × ø2.0
Refrigerant piping : ft.
Max. Length Max. Height difference
A
65
Indoor
unit
Max. Height
difference
B
2 lb. 9 oz.
4-way valve
Muffler
Discharge
temperature
Service
thermistor
port
RT62
Compressor
Service
port
Defrost
thermistor
RT61
Capillary tube
O.D. 0.118 × I.D. 0.071
× 23-5/8
(ø3.0 × ø1.8 × 600)
Expansion
valve
× I.D. 0.079
× 240)
B
40
Max. Length
A
Outdoor unit
Refrigerant piping length (one way) : ft.
25 30
0 1.62
Calculation : X oz. = 1.62 / 5 oz. / ft. × (Refrigerant piping length (ft.) - 25)
8
Outdoor heat
exchanger
temperature
thermistor
RT68
Outdoor
heat
exchanger
Ambient
temperature
thermistor
RT65
Strainer
#100
R.V. coil
heating ON
cooling OFF
Refrigerant flow in cooling
Refrigerant flow in heating
Piping size O.D : in.
Gas
3/8
40 50 60
4.86 8.10 11.34
Unit:inch
Liquid
1/4
65
12.96