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

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Presentation on theme: "Sealed System Symptoms 2010 Sealed System Symptoms 2010 Sandeep Gupta RTC HA North Videocon Sandeep Gupta RTC HA North Videocon."— Presentation transcript:

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

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3 LOW PRESSURE VAPOUR LOW PRESSURE LIQUIDHIGH PRESSURE VAPOUR HIGH PRESSURE LIQUID 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 EVAPORATOR CONDENSER DRIER CAPILLARY NORMAL SEALED SYSTEM psig. 5-7 psig. PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32  C

4 OVER CHARGED SEALED SYSTEM EVAPORATOR CONDENSER DRIER CAPILLARY psig psig. LOW PRESSURE VAPOUR LOW PRESSURE LIQUIDHIGH PRESSURE VAPOUR HIGH PRESSURE LIQUID PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32  C 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

5 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 UNDER CHARGED SEALED SYSTEM EVAPORATOR CONDENSER DRIER CAPILLARY 130 psig. At / bellow 0 psig. LOW PRESSURE VAPOUR LOW PRESSURE LIQUIDHIGH PRESSURE VAPOUR HIGH PRESSURE LIQUID PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32  C

6 COMPRESSOR POOR PUMPING psig psig. LOW PRESSURE VAPOUR LOW PRESSURE LIQUIDHIGH PRESSURE VAPOUR HIGH PRESSURE LIQUID PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32  C EVAPORATOR CONDENSER DRIER CAPILLARY 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

7 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 CAPILLARY COMPRESSOR NOT PUMPING psig. LOW PRESSURE VAPOUR LOW PRESSURE LIQUIDHIGH PRESSURE VAPOUR HIGH PRESSURE LIQUID PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32  C

8 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, GAS LEAKED SEALED SYSTEM EVAPORATOR CONDENSER DRIER CAPILLARY >0 psig. (Ambient) <0 psig. (Ambient) LOW PRESSURE VAPOUR LOW PRESSURE LIQUIDHIGH PRESSURE VAPOUR HIGH PRESSURE LIQUID PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32  C

9 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. COMPLETELY RESTRICTED SEALED SYSTEM EVAPORATOR CONDENSER DRIER CAPILLARY =60%NORMAL 20”-25” vacuum. LOW PRESSURE VAPOUR LOW PRESSURE LIQUIDHIGH PRESSURE VAPOUR HIGH PRESSURE LIQUID PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32  C

10 PARTIALLY RESTRICTED SEALED SYSTEM EVAPORATOR CONDENSER DRIER CAPILLARY psig. 5” - 20” vac LOW PRESSURE VAPOUR LOW PRESSURE LIQUIDHIGH PRESSURE VAPOUR HIGH PRESSURE LIQUID PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32  C 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

11 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 EVAPORATOR CONDENSER DRIER CAPILLARY OIL TROUBLE psig psig. LOW PRESSURE VAPOUR LOW PRESSURE LIQUIDHIGH PRESSURE VAPOUR HIGH PRESSURE LIQUID PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32  C

12 EVAPORATOR CONDENSER DRIER CAPILLARY psig. 5-7 psig. SEALED SYSTEM RESTRICTED WITH MOISTURE psig. 20”-25” vac psig. 5” - 18” VACUUM 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 LOW PRESSURE VAPOUR LOW PRESSURE LIQUIDHIGH PRESSURE VAPOUR HIGH PRESSURE LIQUID When any moisture reaches to capillary tube's mouth gets freeze up there after the system behaves like choke till it melts move ahead PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32  C

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