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July 1, 1992.
- Venting CFC or HCFC.
- Faucify or fail to keep required records
- Fail to reach required evacuation rates prior to opening or disposing of appliances.
- Venting CFC's HCFC's or HFC while repairing appliances, with the exception of de-minimus release.
November 14, 1994
- Service, maintain, or dispose of appliances designed to contain refrigerants without being appropriately certified.
- the sale of cfc and hcfc refrigerant. where restricted to certified technicians
November 15, 1995
- Venting HFC's
- Fail to recover CFC's, HCFC's, or HFC's before opening or disposing of appliances.
- Fail to have an EPA approved recovery device, equipped with low loss fittings, and register the device with the EPA.
- Add nitrogen to a fully charged system, for the purpose of leak detection and there by cause a release of the mixture.
- Dispose of a disposable cylinder without first recovering any remaining refrigerant to zero PSIG and then rendering the cylinder useless, then recycling the metal.
Clean Air Act. Failure to comply could cost you and your company as much as_____ per day, per violation.
The bounty to lour your competitors, customers, and co-workers and turn them in.
$10,000 if convicted
December 31, 1995
- CFC's were fazed out of production.
- The Montreal Protocol
To remove refrigerant in any condition from appliance and appliance and store it, in an external container or isolate it in a portion of the system.
Recover and Reuse
Uncontaminated recovered refrigerant may be reused in a unit from which it was removed or another unit that is owned by the same owner.
To clean refrigerant for reuse by separating oil from the refrigerant and removing moisture by passing it through one or more filter dryers.
To process refrigerant to a level equal to new product standards as determined by chemical analysis and must meet standards set forth in ARI-700.
November 15, 1993
Recovery and recycling equipment must be certified and labeled by EPA standards.
Recovery System Dependent
Captures refrigerant with the assistance of a pump from the appliance.
Recovery Self Contained
Draws the refrigerant out of the appliance using the appliances compressor.
evacuation essentials for accurate readings & speed
- vacuum lines should be equal or larger than the pump intake connection
- the piping conn. to the pump should be as short as possible and as large as diameter as poss.
- the system vacuum gauge should be connected as far as possible from the vacuum pump
the 4 compo-nits of the refrigeration system?
- metering device
ozone, o3 is made up approximately of what?
78% nitrogen 21% oxygen 1% other gasses
what is the weight / pressure of atmosphere at sea level?
14.696 lbs per square inch
what is the measurment in (HG) mercury at atmospheric pressure
29.92 (HG) inches
effects of vacuum pressure
increase in pressure
lowering the pressure
- increase boiling point of the liquid
- lowering the boiling point of the liquid
vacuum is read in inches of mercury to 29.92 (HG)
after that it is read in mm of microns 1/1000
how far is stratosphere
10 to 30 miles above sea level
before you dispose of any appliance containg cfc or hcfc ref. you must do what
recover the refrigerant
hcfc refrigerants are
less harmful to the stratosphere than cfc
which compounds have the highest depletion potential (ODP)
each chlorine atom in the stratosphere can destroy how many ozone molecules
10,000 ozone molecules
what characteristics of cfc make them more likely to reach the stratosphere than most other compounds containing chlorine
cfc neihter dissolve in water, nor break down into compounds, so they do not rain out of the atmosphere
refrigerant entering the compressor is a
there are no drop in replacement for r-12
r-134A is the preferred retrofit replacement
proper charging method of a blended refrigerant with the system off
weigh in the high side as a liquid
ternary blends are
three-part blends that use alkylbenzene oil
has a range of boiling points and or condensing temp.
- do not have a temp glide
- is a blended refrigerant that acts like a single blend
- easily absorbs oil
- used in most refrigerant oi