sealed system symptoms 2010
DESCRIPTION
Sealed System Symptoms 2010. Sandeep Gupta RTC HA North Videocon. 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. - PowerPoint PPT PresentationTRANSCRIPT
Sealed System Symptoms2010
Sealed System Symptoms2010
Sandeep Gupta RTC HA North Videocon
Sandeep Gupta RTC HA North Videocon
REFRIGERATOR NOT COOLING
GROUND
RUNING WINDING OPEN
STARTING WINDING OPEN
WINDING OPEN
ANY WINDINGR OR S
BOTH WINDINGR & S
INTERNAL SHORT
MORE CURRENT
WINDING INSULATION RESISTANCE LOW
ELECTRICAL
STARTING NOISE
RUNNING NOISE
STOPPING NOISE
NOISE
POOR PUMPING
NOT PUMPING
JAMMED WHEN HOT
MECHANICAL
COMPRESSOR DEFECTS
GAS LEAK
CAPILLARY CHOKE
DRIER CHOKE
CHOKE
NOT PUMPING
RUNNING BUT NOT COOLING
OVER CHARGE
OIL TROUBLE
MOISTURE TROUBLE
PARTIAL CHOKE
SHORTAGE OF GAS
POOR PUMPING
LESS COOLING
SEALED SYSTEM DEFECTS
NOT COOLING
LOW PRESSURE VAPOUR
LOW PRESSURE LIQUID HIGH 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
EVAPORATORCONDENSER
DRIER
CAPILLARY
NORMAL SEALED SYSTEM
140 -150 psig.
5-7 psig.
PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32 C
OVER CHARGED SEALED SYSTEM
EVAPORATORCONDENSER
DRIER
CAPILLARY
150 -170 psig.
10-15 psig.
LOW PRESSURE VAPOUR
LOW PRESSURE LIQUID HIGH 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
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
CAPILLARY130 psig.
At / bellow 0 psig.
LOW PRESSURE VAPOUR
LOW PRESSURE LIQUID HIGH PRESSURE VAPOUR
HIGH PRESSURE LIQUID
PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32 C
COMPRESSOR POOR PUMPING
130-140 psig.
10 -15 psig.
LOW PRESSURE VAPOUR
LOW PRESSURE LIQUID HIGH 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
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
40-50 psig.
40-50 psig.
LOW PRESSURE VAPOUR
LOW PRESSURE LIQUID HIGH PRESSURE VAPOUR
HIGH PRESSURE LIQUID
PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32 C
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
EVAPORATORCONDENSER
DRIER
CAPILLARY
>0 psig.(Ambient)
<0 psig. (Ambient)
LOW PRESSURE VAPOUR
LOW PRESSURE LIQUID HIGH PRESSURE VAPOUR
HIGH PRESSURE LIQUID
PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32 C
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
EVAPORATORCONDENSER
DRIER
CAPILLARY
80-90 psig.@ =60%NORMAL
20”-25” vacuum.
LOW PRESSURE VAPOUR
LOW PRESSURE LIQUID HIGH PRESSURE VAPOUR
HIGH PRESSURE LIQUID
PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32 C
PARTIALLY RESTRICTED SEALED SYSTEM
EVAPORATOR CONDENSER
DRIER
CAPILLARY
90-100 psig.
5” - 20” vac
LOW PRESSURE VAPOUR
LOW PRESSURE LIQUID HIGH 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
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
EVAPORATORCONDENSER
DRIER
CAPILLARY
OIL TROUBLE
150 -160 psig.
5 -10 psig.
LOW PRESSURE VAPOUR
LOW PRESSURE LIQUID HIGH PRESSURE VAPOUR
HIGH PRESSURE LIQUID
PRESSURES SHOWN ARE AT NORMAL AMBIENT TEMP. OF 32 C
EVAPORATORCONDENSER
DRIER
CAPILLARY
140-150 psig.
5-7 psig.
SEALED SYSTEM RESTRICTED WITH MOISTURE
80-90 psig.
20”-25” vac.
90-100 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 LIQUID HIGH 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
