Rules and procedures for servicing small appliances containing 5 pounds or less of refrigerant, tested on the Type I certification.
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- What is the maximum refrigerant charge for an appliance to be classified as EPA 608 Type I?
- 5 pounds or less
- Before opening a sealed small appliance system for service, what must you do first?
- Recover the refrigerant using approved recovery equipment
- What is the maximum pressure (in PSIG) at which recovered refrigerant can be stored in a recovery cylinder?
- 245 PSIG (or 10 percent of the cylinder's service pressure rating, whichever is lower)
- When recovering refrigerant from a Type I appliance, what must you do with the oil?
- Return it to the appliance or properly dispose of it as hazardous waste
- What is prohibited when servicing small appliances under EPA 608 regulations?
- Venting refrigerant directly to the atmosphere
- How must recovery cylinders be labeled when filled with mixed or used refrigerant?
- With a yellow label identifying the contents as contaminated or mixed refrigerant
- What certification must a technician hold to legally service EPA 608 Type I appliances?
- EPA Section 608 certification (Type I, Universal, or Core certification)
- When a recovery cylinder is received damaged or leaking, what should you do?
- Do not open it; contact the supplier and follow their disposal procedures
- What document must be kept on record when servicing a Type I appliance?
- Service documentation showing the date, appliance, refrigerant recovered, amount recovered, and technician name
- What is the definition of a double evacuation procedure?
- Evacuating, breaking the vacuum with nitrogen, and evacuating again to remove moisture and air
- When purging a small appliance system with nitrogen, what must you never do?
- Never vent the nitrogen and refrigerant mixture directly to the atmosphere
- What is the difference between refrigerant recovery and refrigerant recycling?
- Recovery removes refrigerant from the system; recycling cleans and reuses it or sends it for reclamation
- What must you do to a large cylindrical compressor before it can be shipped or stored after a burnout?
- Evacuate it to remove moisture and acid, then seal it with caps on all openings
- Before you can legally purchase and use recovery equipment for Type I work, what must happen?
- It must be certified as meeting EPA standards for recovery efficiency
- When replacing a filter-drier in a small appliance, why must you use a new one?
- Used filter-driers contain moisture from previous service and cannot protect the system effectively
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