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What are the penalties for a for not following Section 609 of the clean air act?
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What are the penalties for a service technician who violates provisions of the clean air act?
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Motor Vehicle Aircon
EPA Section 609
| Question | Answer |
|---|---|
| What are the penalties for a for not following Section 609 of the clean air act? | -cost company as much as $27,500/day/violation -bounty up to $10,000 to lure competitors, customers, and workers to turn you in |
| What are the penalties for a service technician who violates provisions of the clean air act? | -fined 27,500 -lose certification -may be required to appear in Federal court |
| What does CFC stand for? | chlorine - flourine - carbon |
| Greatest effect of CFC is where | the stratosphere, conatining the ozone layer |
| Ozone is made of what type and number of atoms? | Three oxygen atoms (o3) |
| What breaks an ozone molecule down? | Chlorine. |
| How does Chlorine break down ozone? | It steals one of the oxygen atoms, creating Chlorine Monoxide (CIO) and Oxygen (O2). The Chlorine Monxoide molecule then attacks another ozone molecule. Creating a chain reation that leaves only the single Chlorine atom. |
| How much damage can the Chlorine atom do to ozone molecules? | The Chlorine atom can destroy as many as 100,000 ozone molecules. |
| What does Stratospheric Ozone protect us from? | -ultraviolet radiation -regulates the earth's temperature |
| The Montreal Protocol calls for? | A producation phase out of CFC's |
| checking cylinder of HFC-134a for non-condesable gases at 70 degree F - pressure should not exceed what? | 76 psi |
| Sec. 609 of Fed. Clean air act mandates all people servicing motor vehicle AC must | -use EPA approved Equip. -be certified in recovery procedures -never intentially vent refrigerant (oops!) |
| Recovery Cylinders must have what sort of certification | -UL or -DOT approved |
| After charging a system using manifold gauages, refrigerant in the hoses... | must be recovered |
| After initial recovery procedures, the technician should... | wait 5 minutes to determine if the system returns to a positive pressure |
| If additional recovery is required after the initial recovery procedure, | repeat the recovery process untile the A/C system vacuum remains stable for 2 min. |
| If retrofitting a MVAC system, the replacment refrigerant MUST be _ approved | EPA-SNAP approved |
| Prior to recharging a system with recycled refrigerant, the refrigerant should be checked for... | non-condensables |
| What must be located within 12" (30 cm) of the end of a service hose? | shut-off valves |
| What must you do when disposing of an empty/near empty DISPOSABLE cylinder? | -attach cylinder to the recovery unit -reduce the cylinder to a vacuum -mark the cylinder empty |
| Before transferring recycled refigerant into an empty storage cylinder, the cylinder should first be... | evacuated to at least 27" hg |
| To ensure that recovery cylinders are not filled above 80% of their capacity and the safe filling capacity...this can be controlled by | -mechanical float devices -electrong shut-offs or -weight (scales) |
| REFILLABLE cylinders used to transport recovered refigerants MUST... | -be DOT approved -be properly labeled and tagged -be hydrostatically tested every 5 years |
| Depletion of the ozone layer causes... | -increased eye disease -skin cancer -crop loss -deforestation -reduced marine life -increased ground level ozone |
| NEVER expose CFC-12 or CFC-22 to open flame because they may form... | -hydrocholoric acid -hydrofluoric acid -phosgene gas |
| Define RECOVER... | remove refrigerant in any condition from a system and store in it an external container |
| When operating recovery or recycling equipment you should... | -wear safety glasses -wear proective gloves -follow all safety precautions for the equpment |
| Define RECYCLE... | clean refigeratant for reuse by oil separation and passes through moisture absorption device. |
| Define RECLAIM... | process refrigerant to a level equal to new product specs as determined by chemical analysis |
| Under what conditions may you use a DISPOSABLE cylinder to recover refrigerant? | NEVER |
| HYGROSCOPIC refrigerant oil... | as a high affinity for water |
| How much can be a paid to a person supplying information that leads to a penalty against a technician who is intentionally venting? | $10,000 |
| Topping off is: | -not prohibited by FEDERAL law BUT -illegal in some STATES |
| The proper method of charging a blended refrigerant is | liquid phase |
| One chlorine atome in the stratospher can destroy up to how many ozone molecules | 100,000 ozone molecules |
| Is there a drop in for r-12 | no, there is not a drop in for r-12 |
| Diminimos release | the last 12" of freon left over in lines from shut off valve. |
| Leak repair is not mandated by the epa at this time but... | leaks should be repaired whenever possible |
| Leak Testing..what will a visual inspection find on the car if there is a leak | oil on the high side of system |
| What does MVAC stand for? | Motor Vehicle Air Conditioning System |
| to remove refigerant in any condition from a system and store it in an approved external container. May not be returned to a motor vehicle air conditioning system without first being recyceled or reclaimed | What is recover? |
| Recycle | to clean refrigerant for retuse by separating the oil and removing moisture by passing it through one or more filter driers. |
| Recycled Refrigerant May.. | be returned to a MVAC. |
| Contaminants in RECYCLED refigerant are limited to | -moisture -refrigerant oil -and non-condesable gases to the levels set by the Society of Automotive Engineers |
| To process refrigerant to a level EQUAL to NEW product specification as determined by chemical analysis | To RECLAIM |
| RECLAIMED Refrigerant | -must meet standards of ARI 700-93 (Air conditioning and Refrigeration institute -is intended for Sale and may be used in any application |
| RECOVERY Cylinders are designed to be? | refilled |
| What two ports must recovery cylinders have? | -one vapor -one liquid |
| To reduce chance of over pressuraization/heating/explosion of recovery cylinders it cannot be filled... | -above 80% of its capacity by weight &-the filling level be controlled by mechanical float devices, shut off or weight |
| To remove non-condesable gases A recovery cylinder must be emptied to what prior to transferring recycled refrigerant into an empty storage cyclinder. | must be evacuated to at least 27in. HG of vacuum. |
| 3 things required for refillable cylinders | -be UL or DOT approved -be hydrostatically tested -date stamped every 5 years |
| What does the Department of Transportations require you to attached to cylinders used for refrigerant when transporting them? | -attachd DOT classification tags on each cylinder -place a refrigerant label on each cylinder |
| refillable cylinders used for transporting RECOVERED pressurized refrigerant must be.. | DOT approved |
| All refrigerant recovery cylinders should be inspected for... | rust |
| If rust is found on refrigerant recovery cylinders... | -should be redueced to 0 psig -discarded |
| To see procedures for each state Check with the DOT and EPA for... | special shipping procedures to be followed in each state based on the CLASSIFICATION of used refrigerant. |
| When disposing of empty/near empty cylinders.. | -refrigerant MUST be recovered -attached to recovery unit & remove -once reduced from pressure to a vaccum, mark empty and ready for disposal |
| What gase can be used in an alternate method of leak testing? | Nitrogen (an inert gas) |
| How to use Nitrogen to leak test? | -use Nitrogen to pressurize the system -pin-point leaks with soap & water solution |
| If dry nitrogen from a cylinder is us in a service procedure what must you do? | -always charge through a pressure regulator -have a pressure relief valve installed downstream from the regulator |
| What must you NEVER pressurize a system with? | -Oxygen -Compressed air |
| Why must you never pressurize a system with oxygen or compressed air? | -if mixed with refrigerants & lubricants these can cause an explosion |
| What should you always review when working with solvents, chemicals or refrigerants | the material safety date sheets |
| What should you do in the even of a large release of refrigerant in a confined area? | IMMEDIATELY VACATE & VENTILATE the area |
| Inhaling refrigerants can cause... | -heart irregularities -unconsciousness -oxygen deprivation leading to DEATH!!!! |
| CFC-12 can NEVER be exposed to.. | -open flames or -hot glowing surfaces |
| At high temperatures R-12 will form | -hydrochloric acid -hydropfluoric acid -Phosgene gas (change from 12 to 22) |
| Hygroscopic oil has an affinity for... | moisture absorption. Therefore the use of XH-7 or XH-9 deciccant (drier) is necessary |
| Alternatives to CFC-12 some blends are ternary. How many parts does a ternary blend have | 3 |
| Most ternary blends use which lubricant? | alkylbenzene lubricant |
| What causes blended refrigerants to leak from a system in uneven amounts? | different vapor pressures. |
| Why must charging in the liquid phase be required with blends? | due to varying vapor pressures |
| If a blend contains HCFC-22 all hoses must be replaced with what type of hoses? | barrier type hoses |
| What program evaluates the substitutes? | EPA's Snap program |
| What does the SNAP program evaluate the substitures for? | their effect of human health and the enviornment. |
| Freeze 12 | Drop in replace r-12 |
| What refrigerant is in a home ac system? | R 22 |
| What refrig. is in 93 and older vehicles? | R 12 |
| What refrig. is in 93 and newer cars? | R 134a |
| Define A.C.? | Remove moisture (humidity) from the air |
| Name 2 pressure reducing devices: | captube exspansion valve |
| another name for low side of ac system? | suction side |
| in a res. ac system HIGH press GAS is found b/t what? | compress & condensor |
| In a res. ac system LOW press GAS is found b/t what? | evaporator (Acoil) & condensor |
| In a res. ac system HIGH press LIQUID is found b/t what? | condensor & evap or Acoil |
| What are the 3 things one needs to know to replace a systems drier? | 1)Type of freon 2)How big system is (tons) 3)direction of flow |
| Evap freeze up indicates what 3 factors? | 1)improper air flow (bad fan,filter) 2)low refrig. 3)stuck closed contactor |
| What is the job of the drier in a ac system? | remove non-conensables (air,moisture) |
| Should you run the compressor in a system when pulling a vaccum? | NO, never |
| Which freon is a CFC? | R-12 |
| Which freon is a HFC? | R-134A |
| Which freon is a HCFC? | R-22 |
| what readings are read on a compound pressure gauge? | PSIG (low)and inches of mercury (high) |
| Ozone Depletion Potental (ODP) is described as what? | A scale to measure the potential of chemical for destroying ozone |
| what are the 3 cfc refrigerants? | R-11,12,500 |
| what are the 2 hcfc refrig? | R-22,123 |
| What are the 2 types of recovery equipment systems? | System-dependant & Self-contained |
| How does a System-dependant recovery device work? | Captures refrig. with the assistance of components in the appliance |
| How does a self-contained recover system work? | has its own means of drawing refrig. out of appliance |
| When a free oxy. and a chlorine atom unite they form? | Chlorine monoxide |
| Type 1 cert. defines small appliances as products that are fully manufac.,charged,and hermetically sealed in a factory with _ pounds or less of ref.? | 5 pounds |
| What must a recover device made after nov. 15 1993 be capable of if compressor in system isnt working? | recover 80% of refrig. or reach a 4 inch vac. |
| What must a recover device made after nov. 15 1993 be capable of if compressor in system is working? | recover 90% of ref. or reach a 4 inch vac. |
| Type 1 tech can service a package unit a/c with a charge not to exceed _ pounds | 5 pounds |
| Which document calls for production controls on cfc and hcfc? | the montreal protocal |
| In order to service small appliances, a tech. must be cert. as what? | Type 1 or universal |
| when filling a dial-a-charge the ref. from the top must? | not be vented and must be recovered |
| If the compressor is NOT running in a passive recov. you are required to? | recover from both low and high side |
| Cfc's will no longer be manuf. after what year? | 1995 |
| In Passive Recovery how can you assist ref. to move fast? | add heat to the ref. |
| A passive recovery does not require a ? | operational compressor |
| all recov. machines must? | meet stand. set by epa |
| type 2 cert. applies to? | high and very high press. ref. |
| Epa regulations require that leaking industrial ref. system be repaired, when leak rate exceeds _% of total charge annually? | 35% |
| epa defines a major repair as? | replace compress.,condens.,evap. |
| air in a refrig.system results in? | high discharge press. |
| refrig should be recovered as? | liquid first |
| what colors is a recover tank? | yellow top gray bottom |
| what is the primary water source for recov. unit condens. coil? | local water supply |
| when evac. a vapor compression system, the vac. pump should be ablr to pull _ microns or _ hg of vac. | 500 micron/29.90 hg |
| hcfc 22 appl. contain less than 200 lbs. of refrig manuf. before 11-15-93 has _ inches hg? after the date? | 0 inch hg before and after |
| hcfc 22 app. contain more than 200 lbs. of refrig manuf. before 11-15-93 has _ inch hg? after the date? | before 4 inch hg/after 10 inch hg |
| high press appl. contain less than 200lbs of refrig. manuf. before 11-15-93 has _ inch hg and after the date? after the date? | before 4 inch hg/after 10 inch hg |
| high press appl. contain more than 200 lbs of refrig. manuf. before 11-15-93 has _ inch hg? after the date? | before 4 inch hg/after 15 inch hg |
| If a strong odor is detected during recov. process what has most likely occured? | compressor burn-out |
| What factors effect the speed of the recov. process? | length of hoses size of system size of pump ambient temp |
| Epa require that all comfort cooling appliances that have more than 50 lbs of refrig. must be repaired when annual leak rate exceeds _% | 15% |
| what are the 3 low loss fittings approved to minimize refrig release? | Quick coupler self-sealing hose hand valves |
| system depend recove equip cannot be used on appliances with more than_ pounds of refrig. | 15 lbs |
| ASHRAE standard 15 requires what? | refrig. sensor that will sound an alarm and auto start a ventilation system in equip rm. when leak of refrig. |
| Where is the purge compress. located on a cooling tower? | top of the condensing unit |
| When leak testing a low press. chillar the max test press. should be _psig | 10 psig |
| the rupture disk on a chiller is set for_ psig | 15 psig |
| when charging a low press. chiller ref. should be introduced as vapor to raise saturation temp above what temp? | 32 deg |
| epa required evac. level for a low press. appliance using equip manuf. BEFORE nov.15 93 | 25 hg inch vac. |
| epa required evac. level for a low press. appl. using equip manuf. AFTER nov. 15 93 is? | 25 mm hg |
| AIR ENTER THE REF. in a low press. chillar is always a concern because? | low press. chill. can operate at press. below atmosphere |
| water should br circulated through the chiller during recov.because it will? | prevent freeze up |
| what is the standard for machinery room safety? | ashrae 15 |
| 134a is group _ ref. 12,11 | A1 |
| 123 is group _ ref. | B1 |
| 3 places leaks occur in chillers? | gaskets filtering rotating shaft seals |
| A temp of _ should be attained when removing oil from low press. system? | 130 deg. |
| ashrae 3-1996 states that if the press. in system rises from _ mm hg to a level above _ mm during vac. test, the system should be leak test. | 1mm/2.5mm |
| when recover ref. in a chiller what 3 thing need to be on or running? | system water pump recov. compress. recov.condenser water |
| Where is the rupture disk location? | on evap. housing |
| How much ref. vapor is left in a 300 ton r-11 chiller at 0 psig, after the liquid has been removed?If at 350 it is 100 lbs. | 90 lbs |
| a accumulator is located in a _ ac system? | vehicle |
| a liquid receiver is located in a _ ac system? | commercial applications |
Created by:
dvehlewald