6
REFRIGERANT SYSTEM DIAGRAM
MSZ-FD09NA MSZ-FD12NA
Indoor coil
Indoor
thermistor
heat
RT12 (main)
exchanger
Indoor coil
thermistor
RT13 (sub)
Room temperature
thermistor
RT11
Refrigerant pipe
3/8
(with heat insulator)
Flared connection
Flared connection
Refrigerant pipe
1/4
(with heat insulator)
9
Unit:inch
Refrigerant flow in cooling
Refrigerant flow in heating