Mitsubishi MUY-A15NA - Max Refrigerant Piping Lengths and Height Differences

16
Max. length
A
Max. Height
difference
B
Indoor
unit
Outdoor unit
MAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFFERENCE
Max. length
A
Max. Height difference
B
Model
Gas
Liquid
3/8
1/4
1/2
1/4
5/8
40
50
65
100
1/4
Piping size O.D : in
Refrigerant piping : ft
MUZ-A09NA
MUZ-A12NA
MUZ-A15NA
MUY-A15NA
MUZ-A17NA
MUY-A17NA
MUZ-A24NA
MUY-A24NA
Unit:inch
MUY-A24NA
Outdoor
heat
exchanger
Flared connection
Discharge
temperature
thermistor
RT62
Flared connection
Stop valve
Stop valve
(with service port)
Capillary tube
Refrigerant flow in cooling
Compressor
Service
port
Service
port
4-way valve
Refrigerant pipe [5/8
(with heat insulator)
Refrigerant pipe [1/4
(with heat insulator)
LEV
Muffler
#100
Strainer
#100
Receiver
Outdoor heat
exchanger
temperature
thermistor
RT68
Ambient
temperature
thermistor
RT65
Strainer
#100
O.D. 0.142 o I.D. 0.094
o 1-31/32
( [3.6 o [2.4 o 50 )
ADDITIONAL REFRIGERANT CHARGE (R410A:oz.)
Outdoor unit
precharged
3025 50
Model
Refrigerant piping length (one way) : ft
40
60 65
2lb.5oz.
2lb.7oz.
0 1.62 4.86 11.34 12.968.10
MUZ-A09NA
MUZ-A12NA
MUZ-A15NA
MUY-A15NA
MUZ-A17NA
MUY-A17NA
Calculation : Xoz. = 1.62/ 5oz./ ft o (Refrigerant piping length (ft)-25)
Refrigerant piping exceeding 25ft. requires additional refrigterant charge according to the calculation.
OB451--1.qxp 06.3.29 9:52 AM Page 16