Carrier MMY-MAP1204FT9UL - Page 200

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<REFERENCE> An Example of Refrigerant Flow in FS Unit When Trouble Occurred
A B C D
• Incorrect wiring/incorrect mounting of coil (SVD ⇔ SVS) • SV11 ON • Control: SVS ON, Actually: SVD ON
•SVD leakage • SV11 ON • SVS ON
• Incorrect wiring/incorrect mounting of coil (SVD ⇔ SVS) • SV11 ON • Control: SVS ON, Actually: SVS ON
• Incorrect piping (Suction gas pipe ⇔ Discharge gas pipe) • SV11 ON • SVS ON
SVSS
SVDD
Suction gas pipe Discharge gas pipe Liquid pipe
Suction gas pipe Discharge gas pipe Liquid pipe
Suction gas pipe Discharge gas pipe Liquid pipe
Suction gas pipe Discharge gas pipe Liquid pipe
SDV
SVS
Cooling operation
Indoor unit
Cool/Heat FS unit
Not cooled
Cooling operation
Warm wind is out.
Heating operation
Cool wind is out.
Cooling operation
Warm wind is out.
SV
SV
SV
SV
SVSS
SVDD
SDV
SVS
SV
SV
SV
SV
SVSS
SVDD
SDV
SVS
SV
SV
SV
SV
SVSS
SVDD
TC2 TCJ
TC1
PMV
TC2 TCJ
TC1
PMV
TC2 TCJ
TC1
PMV
TC2 TCJ
TC1
PMV
SDV
SVS
SV
SV
SV
SV