Toshiba MMY-MAP0726FT2P-UL - Leakage;Clogging of Refrigerating Cycle Circuit

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9-9. Leakage/Clogging of Refrigerating Cycle Circuit
List of Check Codes Generated upon Occurrence of Leakage/Clogging in Outdoor Cycle
or Oil Circuit Part
(MMY-MAP0726*)
Clogging
Part
Outdoor PMV1, PMV3, 4
Outdoor PMV4 circuit check valve
SV14 valve
SV14 valve circuit check valve
Corresponding unit
A
Activation of high-pressure protection
Activation of low-pressure protection
Discharge temp. trouble (TD1)
Discharge temp. trouble (TD2)
P20
H06
P03
P17
Rise of abnormal pressure
Fall of pressure
Rise of discharge temp.
(compressor 1)
Rise of discharge temp.
(compressor 2)
Detected fault and check code
Site of fault
(see next page)
Check target unit Symptom
Part Detected fault and check code
Site of fault
(see next page)
Check target unit Symptom
Check valve in discharge pipe
convergent section
SV11 valve
SV11 valve circuit check valve
Corresponding unit
B
High-pressure protection operation
High-pressure SW system trouble
P20
P04-XX
Abnormal rise of pressure
Check valve in discharge pipe C Corresponding unit
High-pressure SW system trouble
P04-XX Abnormal rise of pressure
Check valve in oil-equalization circuit
Capillary
Strainer
Corresponding unit
D
Oil level detection circuit trouble
Oil level low detection and protection
H16-XX
H07-XX
Oil circuit trouble or oil
shortage judgment
SV3A valve E
SV3B valve F
Other connected unit Oil level low detection and protection H07-XX Oil level low
Corresponding unit Oil level low detection and protection H07-XX Oil level low
SV3C valve G Other connected unit Oil level low detection and protection H07-XX Oil level low
Oil return distributor J Corresponding unit Oil level low detection and protection H07-XX Oil level low
K Corresponding unit
Oil level detection circuit trouble
H16-04
Oil circuit trouble
SV3A valve E Corresponding unit Oil level low detection and protection H07-XX Oil level low
G Corresponding unit Oil level low detection and protection H07-XX Oil level low
Check valve in discharge pipe
convergent section
Corresponding unit
B
Oil level low detection and protection
Compressor breakdown
Compressor trouble (lockup)
H07-XX
H01-XX
H02-XX
Refrigerant entrapment
Check valve in discharge pipe Corresponding unit
C
Oil level low detection and protection
Compressor breakdown
Compressor trouble (lockup)
H07-XX
H01-XX
H02-XX
Refrigerant entrapment
Outdoor PMV1 Corresponding unit
A
Outdoor liquid backflow trouble
Oil level low detection and protection
P13
H07-XX
Refrigerant entrapment
Other connected unit
Discharge temp. trouble (TD1)
Discharge temp. trouble (TD2)
P03
P17
Rise of discharge temp.
(compressor 1)
Rise of discharge temp.
(compressor 2)
Corresponding unitCheck valve in oil-equalization
circuit
D
Oil level low detection and protection H07-XX Excessive amount of oil
(Leaking side)
Insufficient amount of oil
(Normal side)
SV3E valve Corresponding unit
I
Oil level detection circuit trouble
Oil level low detection and protection
H16-05
H07-XX
Oil circuit trouble
Oil level low
Oil level low
SV3D valve
SV3D valve circuit capillary
Strainer
Corresponding unit
H
Oil level low detection and protection H07-XX Oil level low
SV3C bypass capillary
Leakage
SV3C valve
Note: “XX” represents sub-code
SV15 valve Corresponding unit
Activation of high-pressure protection
Discharge temp. trouble (TD1)
Discharge temp. trouble (TD2)
Corresponding unit
Check valve in main
sub bypass
Activation of high-pressure protection
Discharge temp. trouble (TD1)
Discharge temp. trouble (TD2)
L
M
P20
P03
P17
P20
P03
P17
Rise of abnormal pressure
Fall of pressure
Rise of discharge temp.
(compressor 1)
Rise of discharge temp.
(compressor 2)
Rise of abnormal pressure
Fall of pressure
Rise of discharge temp.
(compressor 1)
Rise of discharge temp.
(compressor 2)
Corresponding unit
Rise of TE2 temp.
Cooling capacity is lower than
noumal indoorunit
L
-
SV15 valve