Refrigerant System Diagram - Mitsubishi Electric MSZ-HM09NA-U1 Service Manual

6

REFRIGERANT SYSTEM DIAGRAM

MSZ-HM09NA MSZ-HM12NA MSZ-HM15NA
Indoor coil
Indoor
thermistor
heat
RT12 (main)
exchanger
Indoor coil
thermistor
RT13 (sub)
Room temperature
thermistor
RT11
MSZ-HM18NA MSZ-HM24NA
Indoor coil
Indoor
thermistor
heat
RT12 (main)
exchanger
Indoor coil
thermistor
RT13 (sub)
Room temperature
thermistor
RT11
OBH746B
Refrigerant pipe ø3/8 (ø9.52) (MSZ-HM09/12NA)
ø1/2 (ø12.7) (MSZ-HM15NA)
(with heat insulator)
Flared connection
Flared connection
Refrigerant pipe ø1/4 (ø6.35)
(with heat insulator)
Refrigerant flow in cooling
Refrigerant flow in heating
Refrigerant pipe ø1/2 (ø12.7) (MSZ-HM18NA)
ø5/8 (ø15.88) (MSZ-HM24NA)
(with heat insulator)
Flared connection
Flared connection
Refrigerant pipe ø1/4 (ø6.35) (MSZ-HM18NA)
ø3/8 (ø9.52) (MSZ-HM24NA)
(with heat insulator)
Refrigerant flow in cooling
Refrigerant flow in heating
9
Unit: inch (mm)