Sealed System Symptoms 2010

1. Sealed System Symptoms 2010 Sandeep Gupta RTC HA North Videocon

2. REFRIGERATOR NOT COOLING NOT COOLING COMPRESSOR DEFECTS SEALED SYSTEM DEFECTS ELECTRICAL MECHANICAL RUNNING BUT NOT COOLING GROUND NOISE GAS LEAK WINDING OPEN CHOKE STARTING NOISE RUNING WINDING OPEN CAPILLARY CHOKE RUNNING NOISE STARTING WINDING OPEN DRIER CHOKE STOPPING NOISE INTERNAL SHORT NOT PUMPING POOR PUMPING OVER CHARGE ANY WINDING NOT PUMPING R OR S OIL TROUBLE JAMMED WHEN HOT BOTH WINDING MOISTURE TROUBLE R & S LESS COOLING MORE CURRENT WINDING INSULATION RESISTANCE LOW PARTIAL CHOKE SHORTAGE OF GAS POOR PUMPING

3. NORMAL SEALED SYSTEM EVAPORATOR - FULLY FROSTED {COLD } SUCTION PRESSURE - NORMAL SUCTION LINE - SLIGHTLY BELOW ROOM TEMP. DISCHARGE PRESSURE - NORMAL CONDENSER - HOT CAPILLARY TUBE - WARM COMPRESSOR DISCHARGE - VERY HOT WATTAGE - RATED CURRENT - NORMAL / RATED CONDENSER EVAPORATOR DRIER 140 -150 psig. CAPILLARY 5-7 psig. LOW PRESSURE LIQUID HIGH PRESSURE VAPOUR LOW PRESSURE VAPOUR HIGH PRESSURE LIQUID PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32  C

4. OVER CHARGED SEALED SYSTEM EVAPORATOR - FULLY FROSTED {COLD} SUCTION PRESSURE - HIGHER THAN NORMAL SUCTION LINE - VERY COLD OR MAY FROST HEAVILY DISCHARGE PRESSURE - NORMAL OR SLIGHTLY HIGHER CONDENSER - HOT CAPILLARY TUBE - COOL COMPRESSOR DISCHARGE - VERY HOT WATTAGE > RATED CURRENT > NORMAL / RATED CONDENSER EVAPORATOR 150 -170 psig. DRIER CAPILLARY 10-15 psig. LOW PRESSURE LIQUID HIGH PRESSURE VAPOUR LOW PRESSURE VAPOUR HIGH PRESSURE LIQUID PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32  C

5. UNDER CHARGED SEALED SYSTEM EVAPORATOR - PARTIALLY FROSTED {EXTREMLY COLD NEARINLET} OUTLET BELOW ROOM TEMP. SUCTION PRESSURE - LOWER THAN NORMAL SUCTION LINE - WARM / ROOM TEMP. DISCHARGE PRESSURE < NORMAL CONDENSER - WARM CAPILLARY TUBE - WARM COMPRESSOR DISCHARGE - HOT WATTAGE < RATED CURRENT < NORMAL / RATED CONDENSER EVAPORATOR DRIER 130 psig. CAPILLARY At / bellow 0 psig. LOW PRESSURE LIQUID HIGH PRESSURE VAPOUR LOW PRESSURE VAPOUR HIGH PRESSURE LIQUID PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32  C

6. COMPRESSOR POOR PUMPING EVAPORATOR - MAY BE FULLY FROSTED { COLD - BUT NOT SUFFICIENT} SUCTION PRESSURE - SLIGHTLY ABOVE NORMAL SUCTION LINE - AT ROOM TEMP. DISCHARGE PRESSURE - LESS THAN NORMAL CONDENSER - HOT [LESS INTENCITY] CAPILLARY TUBE - WARM COMPRESSOR DISCHARGE - HOT WATTAGE < RATED CURRENT < NORMAL / RATED CONDENSER EVAPORATOR DRIER 130-140 psig. CAPILLARY 10 -15 psig. LOW PRESSURE LIQUID HIGH PRESSURE VAPOUR LOW PRESSURE VAPOUR HIGH PRESSURE LIQUID PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32  C

7. COMPRESSOR NOT PUMPING EVAPORATOR -NO FROST SUCTION PRESSURE - ABOVE NORMAL SUCTION LINE -AT ROOM TEMP. DISCHARGE PRESSURE - LESS THAN NORMAL CONDENSER - AT ROOM TEMP. CAPILLARY TUBE - AT ROOM TEMP. COMPRESSOR DISCHARGE - AT ROOM TEMP. WATTAGE < RATED EVAPORATOR CONDENSER DRIER 40-50 psig. CAPILLARY 40-50 psig. LOW PRESSURE LIQUID HIGH PRESSURE VAPOUR LOW PRESSURE VAPOUR HIGH PRESSURE LIQUID PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32  C

8. GAS LEAKED SEALED SYSTEM EVAPORATOR - NO FROST SUCTION PRESSURE - NEAR ZERO PSIG SUCTION LINE - ROOM TEMP. DISCHARGE PRESSURE - NEAR ZERO PSIG CONDENSER - ROOM TEMP. CAPILLARY TUBE - ROOM TEMP. COMPRESSOR DISCHARGE - ROOM TEMP. WATTAGE < NORMAL CURRENT < NORMAL / RATED IF CHOKE AT ANY POIN & MOTOR RUN CONTINIOUSLY, CONDENSER EVAPORATOR DRIER >0 psig. (Ambient) CAPILLARY <0 psig. (Ambient) LOW PRESSURE LIQUID HIGH PRESSURE VAPOUR LOW PRESSURE VAPOUR HIGH PRESSURE LIQUID PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32  C

9. COMPLETELY RESTRICTED SEALED SYSTEM EVAPORATOR - NO FROST SUCTION PRESSURE - DEEP VACUUM SUCTION LINE - ROOM TEMP. DISCHARGE PRESSURE -LESS THAN NORMAL CONDENSER - INITIALLY HOT THEN DROPS TO ROOM TEMP CAPILLARY TUBE - ROOM TEMP. COMPRESSOR DISCHARGE - ROOM TEMP. WATTAGE < NORMAL CURRENT < NORMAL / RATED IF CHOKE AT ANY POINT & MOTOR RUNS CONTINIOUSLY OR CURRENT > NORMAL / RATED IF CHOKE ON DISCHARGE TUBE & MOTOR MAY TRIP. CONDENSER EVAPORATOR DRIER 80-90 psig. @ =60%NORMAL CAPILLARY 20”-25” vacuum. LOW PRESSURE LIQUID HIGH PRESSURE VAPOUR LOW PRESSURE VAPOUR HIGH PRESSURE LIQUID PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32  C

10. PARTIALLY RESTRICTED SEALED SYSTEM EVAPORATOR - PARTIALLY FROSTED {EXTREMLY COLD NEARINLET} OUTLET BELOW ROOM TEMP. SUCTION PRESSURE < NORMAL/ IN VACUUM SUCTION LINE - WARM / ROOM TEMP. DISCHARGE PRESSURE < NORMAL CAPILLARY TUBE - AT ROOM TEMP. / COLDER. CONDENSER - TOP COILS VERY HOT LOWER COILS AT ROOM TEMP / BELOW ROOM TEMP. COMPRESSOR DISCHARGE - VERY HOT WATTAGE < RATED CURRENT < NORMAL / RATED CONDENSER EVAPORATOR DRIER 90-100 psig. CAPILLARY 5” - 20” vac LOW PRESSURE LIQUID HIGH PRESSURE VAPOUR LOW PRESSURE VAPOUR HIGH PRESSURE LIQUID PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32  C

11. OIL TROUBLE EVAPORATOR - FULLY FROSTED {PATCHES OF ICE FORMATION} SUCTION PRESSURE -SLIGHTLY ABOVE NORMAL SUCTION LINE - HIGHER THAN ROOM TEMP. DISCHARGE PRESSURE - SLIGHTLY ABOVE NORMAL. CONDENSER - HOT CAPILLARY TUBE - WARM COMPRESSOR DISCHARGE - VERY HOT WATTAGE > RATED CURRENT > NORMAL / RATED CONDENSER EVAPORATOR DRIER 150 -160 psig. CAPILLARY 5 -10 psig. LOW PRESSURE LIQUID HIGH PRESSURE VAPOUR LOW PRESSURE VAPOUR HIGH PRESSURE LIQUID PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32  C

12. SEALED SYSTEM RESTRICTED WITH MOISTURE EVAPORATOR - NO FROST { OR INTERMITANT FROST} SUCTION PRESSURE - DEEP VACUUM SUCTION LINE - ROOM TEMP. DISCHARGE PRESSURE -LESS THAN NORMAL CONDENSER - ROOM TEMP. CAPILLARY TUBE - ROOM TEMP. COMPRESSOR DISCHARGE - ROOM TEMP. WATTAGE > RATED CURRENT > NORMAL / RATED CONDENSER EVAPORATOR DRIER 140-150 psig. CAPILLARY 5-7 psig. 90-100 psig. 5” - 18” VACUUM When any moisture reaches to capillary tube's mouth gets freeze up there after the system behaves like choke till it melts move ahead 80-90 psig. LOW PRESSURE LIQUID HIGH PRESSURE VAPOUR 20”-25” vac. LOW PRESSURE VAPOUR HIGH PRESSURE LIQUID PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32  C

13. Thank you