Section 608 Type I Certification Review

108 vocabulary flashcards covering EPA Section 608 Type I Certification topics including refrigerant recovery procedures, equipment standards, and legal requirements for small appliances.

Type I Appliance Maximum Charge

A maximum allowable factory charge of $5\,pounds$ of refrigerant.

Small Appliance (EPA Definition)

Products manufactured, fully charged, and hermetically sealed in a factory containing $5\,lbs$ or less of refrigerant.

Self-Contained Recovery (Operating Compressor)

Requirement to recover at least $90\%$ of the nameplate charge or achieve $4\,inches$ of mercury vacuum.

Refrigerant Mixing Policy

Refrigerants cannot be mixed in any appliance or recovery cylinder.

Passive System-Dependent Recovery

A process for small appliances that captures refrigerant in a non-pressurized container.

Defrost Heater

Used to speed recovery from a frost-free refrigerator by vaporizing liquid refrigerant.

Mixed Refrigerant Handling

Reclamation facilities may refuse to accept a tank or charge extra for processing it.

Refrigerator Access Valves

Installed on both high and low sides to improve the speed of recovery.

Process Stub

A straight piece of tubing on small appliances typically used for piercing access valves.

HCFC or HFC System-Dependent Limit

The maximum normal charge allowed to use system dependent recovery equipment is $15\,pounds$.

Restricted Capillary Tube Recovery

Requires only one access valve on the high side of the system if the compressor is operating.

Passive Recovery Permissibility

Permissible for recovery from domestic refrigerators.

R-600a

An approved hydrocarbon refrigerant for new household refrigerators, freezers, and combination refrigeration/freezers.

Hydrocarbon Retrofitting

Hydrocarbons are not approved for retrofit applications into existing household refrigerators.

Releasing Trapped Refrigerant from Oil

Essential when using passive recovery devices on small appliances with non-operating compressors.

Access Fitting Testing

Fittings should be leak tested after installation and before proceeding with recovery.

Zero psig System Pressure

Indicates that refrigerant recovery is not required.

System-Dependent Recovery Limit

Applicable only to appliances containing $15\,pounds$ of refrigerant or less.

Charging Cylinder Venting

Vapor vented off the top of the cylinder must be recovered.

Non-condensable Example

Air is a primary example found in refrigeration systems.

Small Appliance Leak Repair

EPA does not require repair, but recommends doing so whenever possible.

Recovery (Non-Operating Compressor)

Equipment must recover $80\%$ of the refrigerant or achieve $4\,inches$ of vacuum.

System Flushing Agent

Nitrogen can be used to flush the system after refrigerant has been recovered.

Type I Certification

Required for persons handling refrigerant during maintenance, service, or repair of small appliances.

New Domestic Small Appliance HC

$R-600a$ is an approved hydrocarbon for use in these NEW systems.

Passive Recovery (Non-Operating Compressor)

Technicians should place access fittings on both the low and high sides of the system.

Passive Recovery (Operating Compressor)

Technicians should run the compressor and recover from the high side only.

RV Refrigerants

Ammonia, Hydrogen, and water; these should not be recovered.

Recovery Equipment Certification

Must be certified by an EPA-approved testing laboratory.

Compressor Heat Gun Application

Used to help vaporize trapped liquid refrigerant during the recovery process.

Active Recovery Equipment

Equipment that has its own independent means to recover refrigerant.

Small Appliance Service Certification

Personnel must hold Type I or Universal certification.

Technician Regulation Responsibility

The technician is responsible for complying with any future changes to EPA regulations.

Reclaiming Mixed Refrigerants

Mixing multiple refrigerants in the same cylinder makes them unreclaimable.

Recovery Odor (Strong)

A strong odor detected during recovery usually indicates a compressor burnout.

Deep Vacuum Precaution

The compressor should never be energized while the system is in this state.

R-12/R-22 Thermal Decomposition

Exposure to open flames or hot surfaces can form phosgene gas.

R-134a

The most common replacement for $R-12$ in new household refrigerators.

Certification Manufacturing Date

Recovery equipment manufactured after November 15, 1993 must be certified by an EPA laboratory.

Type I Charge Threshold

$5\,pounds$ is the maximum factory charge for appliances classified as Type I.

Solderless Piercing Valves

Should not remain on systems after repairs because they tend to leak over time.

Nitrogen Usage Rule

Only nitrogen vapor should be used for pressurizing or clearing debris.

Cylinder Pressure Reading Accuracy

Important to ensure the refrigerant is stable at room temperature for an accurate reading.

ARI 740-1993

The standard that recovery devices manufactured after November 15, 1993 must meet.

Shipping Standards

Refillable tanks for recovered refrigerants must meet Department of Transportation standards.

R-22 Pressure at $75\,^\circ F$

Pressurized to $130\,psig$ in the absence of non-condensables.

Refrigerant Type Determination

The necessary first step before beginning any refrigerant recovery procedure.

Section 608 Regulated Refrigerants

Refrigerants such as $R-12$ must be recovered using certified equipment.

Large Refrigerant Release Action

Requires leaving the area or using self-contained breathing apparatus (SCUBA).

Maintenance (Recovery Device)

Regularly checking for refrigerant leaks.

Pungent Odor

Detectable during recovery when a compressor burnout has occurred.

Recovery Aid (Inoperative Compressor)

It is necessary to heat and strike the compressor with a rubber mallet.

Refrigerant Suffocation Hazard

Refrigerants are heavier than air and displace oxygen in contained areas.

Non-Type I MVAC systems

An MVAC-like system holding $3\,pounds$ of $R-12$ is not a Type I appliance.

R-500 Recovery

Must be recovered into its own dedicated vessel or one already containing $R-500$.

Service Manifold Practices

Use hand valves or self-sealing hoses to minimize refrigerant release.

Certification Renewal

EPA Section 608 certification has no expiration date.

R-12 Drop-In Substitute

There is no direct service drop-in substitute available for small appliances.

Piercing Valve Material Limit

Should only be used on copper or aluminum tubing.

PTAC

Packaged terminal air conditioners with $5\,pounds$ or less of refrigerant, certified under Type I.

R-500 Pressure at $75\,^\circ F$

Pressurized to $95\,psig$ in the absence of non-condensables.

Very-High-Pressure Appliance

Liquid phase saturation pressure above $355\,psia$ at $104\,^\circ F$.

R-22 Drop-In Substitute

There is no direct service drop-in substitute for $R-22$ in small appliances.

Enclosed Spill Procedure

Technicians should vacate and ventilate the spill area.

R-12 Pressure at $75\,^\circ F$

Pressurized to $75\,psig$ in the absence of non-condensables.

Nitrogen Tank Accessory

Must always be equipped with a regulator.

Active Recovery Vapor Draw

Draw from the high side to avoid accidental liquid removal from a vapor-only device.

Nitrogen Venting

Venting is allowed when nitrogen is used for pressurizing or blowing debris.

Low Loss Fittings

Used to prevent refrigerant loss from hoses when they are disconnected.

Sale of Refrigerants

Restricted to technicians who are EPA certified in refrigerant recovery.

R-410A Pressure at $90\,^\circ F$

Pressurized to $300\,psig$ in the absence of non-condensables.

DOT Regulation 49 CFR

Requires number of cylinders of each gas recorded for hazard class 2.2 shipping papers.

Process Tube

A service aperture consisting of a straight piece of tubing on small appliances.

Appliance Service Port

Required on all appliances for adding or removing refrigerant.

Phosgene Gas Formation

Gas formed when $R-12$ and $R-22$ decompose at high temperatures.

Hydrochloric Acid

One of the acids formed from thermal decomposition of $R-12$ or $R-22$.

Hydrofluoric Acid

An acid product resulting from the decomposition of refrigerants at high temperatures.

Active Recovery High Side Pressure

Caused by non-condensables in the recovery cylinder or an un-opened inlet valve.

Small Appliance Exception (Self-Contained)

Persons working only on small appliances are exempt from keeping a self-contained machine at the shop.

System Flushing

Using nitrogen after recovery to clean the refrigeration cycle.

Type I Recovery Personal Scope

Applicable for maintenance, service, or repair of small appliances.

CFC Recovery Standard

Requires certification by an EPA-approved testing laboratory for equipment.

Vaporization (Frost-free Fridge)

Turning on the defrost heater to vaporize any trapped liquid refrigerant.

Cylinder Stabilization

The procedure of allowing cylinder temperature to reach room temperature before pressure checks.

Vacuum Pump Limit

Can only be used as a recovery device with a non-pressurized container.

Reclamation Mix Management

Options include refusing the mix or charging extra for special processing.

Self-Sealing Hoses

Equipment used to minimize refrigerant release during manifold connection.

Safe Work Practices (EPA)

Standard safety measures like wearing gloves and safety glasses during service.

Copper and Aluminum Tubing

The only materials on which piercing-type valves should be used.

Passive Recovery Side Access

Required on both the high and low side if the system compressor does not run.

Vented Vapor Recovery

Compulsory recovery of vapor from charging cylinders.

EPA Disposal Rule (Post-93)

Disposal recovery for small appliances requires using ARI 740-1993 certified equipment.

Hazard Class 2.2

Category for Non Flammable Compressed Gases on DOT shipping papers.

Mercury Vacuum (Standard)

$4\,inches$ is the target for both operating and non-operating compressor recovery.

Nameplate Charge (Target)

$90\%$ is the recovery objective when the compressor is operating.

Liquid Pressure Saturation (VHP)

Pressure above $355\,psia$ at $104\,^\circ F$ defines a Very-High-Pressure appliance.

Refrigerant Displacement

The process by which leaking refrigerant displaces oxygen, leading to suffocation.

Burnout detection method

Detection of a pungent or strong odor during a system recovery.

Process Stub Access

The location where a piercing-type access valve is installed.

80 percent capture

The minimum recovery standard for small appliances with an inoperative compressor.