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Tommy’s Tips • Non-Refillable Refrigerant Cylinders ©Tom Schaefer Upstate Systems 5/21/2010
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Tommy’s Tips
• Non-Refillable Refrigerant Cylinders
©Tom SchaeferUpstate Systems5/21/2010
Non-Refillable Refrigerant Cylinders
©Tom SchaeferUpstate Systems5/21/2010
Air conditioning and refrigeration service technicians carry refrigerant cylinders in their service trucks every day.
©Tom SchaeferUpstate Systems5/21/2010
While these cylinders are relatively safe there are several hazards that need to be understood.
©Tom SchaeferUpstate Systems5/21/2010
Service techs need to be aware of proper transportation procedures, storage of cylinders and correct procedures when using them to charge systems.
©Tom SchaeferUpstate Systems5/21/2010
One of the major concerns is
TEMPERATURE!
©Tom SchaeferUpstate Systems5/21/2010
Most refrigerant cylinder labels advise that they should
not exceed
120 – 130 degrees F.
©Tom SchaeferUpstate Systems5/21/2010
Service techs have used different ways to warm up a cold cylinder:
Warm blanket
Torch
Hot Water
Hair Dryer
©Tom SchaeferUpstate Systems5/21/2010
It is strongly recommended to NOT use a torch to heat a cylinder!
©Tom SchaeferUpstate Systems5/21/2010
OL
©Tom SchaeferUpstate Systems5/21/2010
Warm water is a good way
to increase cylinder temperature.
©Tom SchaeferUpstate Systems5/21/2010
Remember that the cylinder cannot exceed approx. 125 degrees F.
Some commercial and residential locations may have hot water setting at
greater than 125 degrees.
140°
©Tom SchaeferUpstate Systems5/21/2010
If you are not sure,
measure the temperature
before putting the cylinder in it.110°
©Tom SchaeferUpstate Systems5/21/2010
Another safety concern is that the pressure inside the cylinder is the same whether it has only a small amount of liquid or if it were full of refrigerant.
201 PSI 201 PSI
Almost empty
Almost full
Same pressure!
70°
70°©Tom SchaeferUpstate Systems5/21/2010
Never leave “empty?” cylinders on the roof or anywhere. Cylinders can rust and become weak and could burst with just a small quantity of refrigerant remaining. Any residual refrigerant should be recovered and then, with the valve open, puncture the cylinder and break off the valve handle.
©Tom SchaeferUpstate Systems5/21/2010
Remember, refrigerant cylinders are to be respected for their potential to do harm to people
and nearby objects.©Tom SchaeferUpstate Systems5/21/2010
