6 
REFRIGERANT SYSTEM DIAGRAM
MSZ-A09NA
Refrigerant pipe ø3/8 (with heat insulator)
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Refrigerant pipe ø1/2 (with heat insulator)
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| Indoor coil | ||||
Indoor | |||||||||||||||
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heat |
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| RT12(main) | ||||||||||||||
exchanger |
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Flared connection
Indoor coil thermistor RT13(sub)
Room temperature thermistor
RT11
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| Indoor coil | ||
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Indoor |
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| thermistor | ||||||||||||||
heat |
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| RT12(main) | ||||||||||||||
exchanger |
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| Distributor | ||||||||||||||
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Indoor coil thermistor RT13(sub)
Room temperature thermistor
RT11
Flared connection
Flared connection
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| Refrigerant pipe ø1/4 | |
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| Refrigerant pipe ø5/8 | |||||||||||||||||||||
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| Indoor coil |
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| Indoor |
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| thermistor |
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| heat |
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| exchanger |
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| Distributor |
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| Flared connection | ||||||||||||||||||
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Indoor coil thermistor RT13(sub)
Room temperature thermistor
RT11
Flared connection
Refrigerant pipe ø1/4 (with heat insulator)
Flared connection
Refrigerant pipe ø1/4 (with heat insulator)
Refrigerant flow in cooling 
Refrigerant flow in heating
9
