co2 training
TRANSCRIPT
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 1/38
The CommercialRefrigeration Company™
Since 1986
®
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 2/38
Co2 Cooler Training
Co2 Cooler gas charging training by coca cola.
Under guidance of
Chandan samanta(CCI)
&
Mr. Yukio yamaguchi
Mr. Mitsuhiko kuroda( sanden corp Japan)
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 3/38
Prototype
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 4/38
• We are using a D96ET model as prototype
• Specifications of D96ET are
4 case chest cooler
Net volume as per ANSIAHAM standard
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 5/38
Co2 Unit Assembly
• Fix the all components on base plate of D96ET
prototype machine.
• The components are compressor, condenser,
Fan, Capacitor stand and etc
on it for unit assembly
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 6/38
Compressor
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 7/38
• There is three connections for compressor
• They are Suction line, Process line and
Discharge Line
• While removing these line seals we have to
fallow a order for safe and prevent of leakage
of oil.
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 8/38
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 9/38
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 10/38
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 11/38
• Initially we have to remove discharge line seal,
suction line and finally remove process line.
• Take a copper tube as per required length to
join the compressor discharge line and
condenser inlet and make T-Joint on between
this line for charging.
• Connect the heat-Exchanger of one line to thecondenser outlet which is going to the
capillary tube.
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 12/38
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 13/38
• Connect the heat exchanger of line to the
condenser out let(discharge) which is going to
the capillary tube.
• Add one more line to the process line.
• Breaze all joints which are connected.
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 14/38
• Prepare capillary tube 0.031inch dia and 8ft
length.
• Connect the ball valves to the process line and
discharge line T connector for charging
applications.• Connect the capillary tube with the heat
exchanger out let by brazing operation.
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 15/38
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 16/38
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 17/38
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 18/38
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 19/38
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 20/38
• Place the base plate in to cooler body for
braze the suction and discharge line to thebody.
• Check all connections and charge N2 gas for
flesh out and leak test with pressure 300psi.
• After charging the gas, close charging valve
and check all connections with soap test
carefully for detect leak, if any leak we getbubbles on joints.
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 21/38
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 22/38
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 23/38
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 24/38
• After check remove the gas from system by
using ball valve.• Connect the vacuum pump to the charging
ports to evacuate the system.
• Evacuate the system till 0.05m.bar or50microns.
• Stop the ball valves when required evacuation
is achieved.• Remove vacuum pump connections.
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 25/38
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 26/38
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 27/38
Gas charging
• Measure weight of the cylinder .
• Connect the crown make type pressure gauge
to the Co2 cylinder.
• Initially release the crown knob and release
main knob.
• Adjust the crown knob for 5Mpa pressure in
second gauge.
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 28/38
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 29/38
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 30/38
• First gauge is 8.5Mpa shows that pressure
inside the cylinder.• Connect the charging hoses to the compressor
process port line.
•
Set the weight machine to the ‘0’ state. • Connect the charging line and slowly release
the gas in to the system till 150gms, the
weight machine shows.• Shut off the ball valves and remove the
charging connections.
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 31/38
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 32/38
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 33/38
• Measure the Co2 cylinder weight for
conformation.• Close all the valves at cylinder.
• Connect the electrical wirings to the system as
per diagram.• Close the charging lines by tube pinching with
pinch of player and braze the tube ends.
• Test for refrigerant leak.
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 34/38
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 35/38
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 36/38
• Switch in card plug and give power supply.
• Check the system is working proper or not.• Wait some time for cooling inside the
chamber.
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 37/38
8/22/2019 Co2 Training
http://slidepdf.com/reader/full/co2-training 38/38
Thank YouFor
your Time