Refrigerant System Diagram - Mitsubishi Electric SUZ-KA09NA2 Service Manual

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REFRIGERANT SYSTEM DIAGRAM

SUZ-KA09NA(H)2.MX SUZ-KA12NA(H)2.MX SUZ-KA15NA(H)2.MX
Refrigerant pipe ø3/8 (ø9.52) (KA09/12)
ø1/2 (ø12.7) (KA15)
(with heat insulator)
Flared connection
Flared connection
Refrigerant pipe ø1/4 (ø6.35)
(with heat insulator)
MAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFFERENCE
Model
SUZ-KA
09/12/15NA(H)2
ADDITIONAL REFRIGERANT CHARGE (R410A: oz)
Refrigerant piping exceeding 25 ft requires additional refrigerant charge according to the calculation.
Outdoor unit
Model
precharged
SUZ-KA09NA(H)2
2 lb 5 oz
SUZ-KA12NA(H)2
2 lb 9 oz
SUZ-KA15NA(H)2
OCH699A
4-way valve
Muffler
Stop valve
(with service port)
Discharge
temperature
Service
thermistor
port
RT62
Capillary tube
O.D. 0.118 ×
I.D. 0.079 × 9-7/16
(ø3.0 × ø2.0 × 240)
(KA09)
Capillary tube
O.D. 0.157 ×
I.D. 0.094 × 9-7/16
LEV
(ø4.0 × ø2.4 × 240)
(KA12/15 )
Stop valve
(with strainer)
Refrigerant piping: ft
Max. Length Max. Height difference
A
65
Indoor
unit
Max. Height
difference
B
25
0
Outdoor
Muffler
heat
exchanger
Service
port
Compressor
Defrost
thermistor
RT61
Capillary tube
O.D. 0.118 ×
I.D. 0.079 × 8-9/32
(ø3.0 × ø2.0 × 210)
Refrigerant flow in cooling
Refrigerant flow in heating
B
3/8 (KA09/12)
40
Max. Length
A
Refrigerant piping length (one way): ft
30 40
1.08 2.16
Calculation: X oz = 1.08/5 oz / ft × (Refrigerant piping length (ft) - 25)
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Outdoor heat
exchanger
temperature
thermistor
RT68
Ambient
temperature
thermistor
RT65
Strainer
#100
R.V. coil
heating ON
cooling OFF
Piping size O.D: in
Gas
1/2 (KA15)
Outdoor unit
50 60
3.24 4.32
Unit: Inch (mm)
Liquid
1/4
65
5.4