Carrier MMY-MAP0724FT9UL Service Manual page 50

Configuration of outdoor unit heat exchanger
Wind
direction
MMY-MAP0724FT
Left side
RBM-Y0383FUL
Liquid
pipe
Capillary
Check
valve
To indoor
liquid side
RBM-Y0963FUL
Liquid
pipe
Check valve
Capillary
To indoor
liquid side
Functional parts name
Solenoid valve
Propeller fan
Fan motor
Main heat
exchanger
Sub heat
exchanger
∗
Right side
Suction
Discharge
gas pipe gas pipe
Check valve
Strainer
Strainer
Capillary
Capillary
Strainer
To indoor
gas side
Discharge Suction
gas pipe gas pipe
Strainer
Strainer
Capillary
Capillary
(SVS)
Strainer
To indoor
gas side
SVD (Discharge gas block valve)
1) High-pressure gas circuit at heating operation
SVS (Suction gas block valve)
1) Low-pressure gas circuit at cooling operation
SVDD (Pressure valve)
1) To increase pressure when No. of indoor heating units are increased
SVSS (Regulator valve)
1) To recover refrigerant in the stopped cooling thermo-OFF indoor unit
2) To decrease pressure when No. of indoor heating units are decreased
Wind Wind
direction direction
Left side
RBM-Y0613FUL
(SVS)
liquid side
Function outline
– 50 –
Propeller fan
Fan motor
Main heat
exchanger
Sub heat
exchanger
MMY-MAP0964FT
MMY-MAP1204FT
Discharge
Liquid
pipe gas pipe
Check valve
Strainer
Capillary
Capillary
Check
valve
To indoor
Wind
direction
∗
∗
Right side
Suction
gas pipe
Strainer
Capillary
(SVS)
Strainer
To indoor
gas side