14.LEAKAGE/CLOGGING OF OIL-EQUALIZATION CIRCUIT

Check code list for leakage, clogging of outdoor refrigerant circuit and oil circuit parts Trouble by clogging

Part name

Position with trouble

Unit issuing

Check code to be detected

 

Phenomena

(See next page.)

check code

 

(Corresponding unit)

 

 

 

 

 

 

 

 

 

 

Outdoor PMV

A

Corresponding unit

High-pressure protective operation

 

P20

High-pressure up

 

 

 

Low-pressure protective operation

 

H06

Low-pressure down

 

 

 

Discharge temp. error

 

P03

Discharge temp. up

 

 

 

 

 

P17

 

 

 

 

 

 

 

 

Check valve of main discharge pipe

B

Corresponding unit

High-pressure protective operation

 

P20

Abnormal high-pressure up

collective section

 

 

High-pressure SW system error

 

P04-XX

 

 

 

 

 

 

 

 

Check valve of discharge pipe

C

Corresponding unit

High-pressure SW system error

 

P04-XX

Abnormal high-pressure up

 

 

 

 

 

 

 

Check valve of oil-equalization circuit

D

Corresponding unit

Oil level detective circuit error

 

H16-XX

Oil-equalization circuit error or

Capillary

 

 

Oil level down error

 

H07

oil-shortage judgment

Strainer

 

 

 

 

 

 

 

 

 

 

 

 

 

SV3A valve

E

Other connected unit

Oil level down error

 

H07

Excessive oil amount

 

 

 

 

 

 

 

SV3B valve

F

Corresponding unit

Oil level down error

 

H07

Shortage of oil amount

 

 

 

 

 

 

 

SV3C valve

G

Other connected unit

Oil level down error

 

H07

Excessive oil amount

 

 

 

 

 

 

 

SV3D valve

H

Corresponding unit

Oil level down error

 

H07

Shortage of oil amount

SV3D valve circuit capillary

 

 

 

 

 

 

Strainer

 

 

 

 

 

 

 

 

 

 

 

 

 

SV3E valve

I

Corresponding unit

Oil level detective circuit error

 

H16-04

Oil-equalization circuit error

 

 

 

Oil level down error

 

H07

Judgment of shortage

 

 

 

 

 

 

Shortage of oil amount

 

 

 

 

 

 

 

Oil return capillary

J

Corresponding unit

Oil level down error

 

H07

Shortage of oil amount

 

 

 

 

 

 

 

SV3C bypass capillary

K

Corresponding unit

Oil level detective circuit error

 

H16-03

Oil-equalization circuit error

 

 

 

 

 

 

 

Trouble by leakage

Part name

Position with trouble

Unit issuing

Check code to be detected

 

Phenomena

(See next page.)

check code

 

(Corresponding unit)

 

 

 

 

 

 

 

 

 

 

Outdoor PMV

A

Corresponding unit

Outdoor liquid back error

 

P13

Refrigerant stagnation

 

 

 

Oil level down error

 

H07

 

 

 

 

 

 

 

 

Check valve of main discharge pipe

B

Corresponding unit

Oil level down error

 

H07

Refrigerant stagnation

collective section

 

 

Compressor breakdown

 

H01-XX

 

 

 

 

Compressor error (Lock)

 

H02-XX

 

 

 

 

 

 

 

 

Check valve of discharge pipe

C

Corresponding unit

Oil level down error

 

H07

Refrigerant stagnation

 

 

 

Compressor breakdown

 

H01-XX

 

 

 

 

Compressor error (Lock)

 

H02-XX

 

 

 

 

 

 

 

 

Check valve of oil-equalization circuit

D

Corresponding unit

Oil level down error

 

H07

Excessive oil amount

 

 

 

 

 

 

(Leaked side)

 

 

 

 

 

 

Shortage of oil amount

 

 

 

 

 

 

(Normal side)

 

 

 

 

 

 

 

SV3A valve

E

Corresponding unit

Oil level down error

 

H07

Shortage of oil amount

 

 

 

 

 

 

 

SV3C valve

G

Corresponding unit

Oil level down error

 

H07

Judgment of oil shortage

 

 

 

 

 

 

 

NOTE) XX: Error on sub-code

197

Page 197
Image 197
Toshiba MMU-AP0091H service manual Trouble by leakage, 197, Unit issuing Check code to be detected Phenomena