Technicians who perform sealed system service on small appliances must have;
Type I or universal certification
A small appliance is defined by EPA
... [Show More] as;
Appliances manufactured, charged, and hermetically sealed in a factory with 5 lbs or less of refrigerant
Type I Certification is required for;
Persons handling refrigerant during maintenance, service, or repair of small appliances.
If regulations change after the technician becomes certified;
The technician is responsible for complying with any future changes in the regulations.
Recovery equipment manufactured after November 15, 1993 must be;
Certified by an EPA approved testing laboratory.
Which of the following is true of small appliances refrigerant leaks;
EPA does not require repair, but leaks should be repaired whenever possible.
Recovery equipment manufactured after November 15, 1993 must be capable of recovering;
90% of the refrigerant or achieving 5 inches of vacuum.
Recovering multiple types of refrigerants in the same cylinder;
Will make the reclaimed refrigerants non reclaimable and a charge for disposal may be levied.
Self-contained or active recovery equipment;
Has its own means of recovery.
System-dependant or passive recovery equipment;
Captures refrigerant into a non-pressurized container with assistance of the appliance compressor.
What is defined as a non-condensible?
Air
When using a system-dependent recovery system on an appliance that has an operating compressor, the technician should;
Run the compressor and recover from the high side of the system.
When using a system-dependent recovery system on an appliance that has a non-operating compressor, the technician should;
Place access fittings on both the low and high side of the system.
System-dependant devices may only be used on appliances containing;
15 lbs of refrigerant or less.
Small appliances are equipped with a straight piece of tubing (process stub) used to;
Install a piercing type access valve fitting.
If a strong odor is detected while performing the recovery process,
A compressor burnout has likely occurred.
After the refrigerant has been recovered, which of the following can be used to flush the system?
Nitrogen.
When filling a charging cylinder with a regulated refrigerant;
The refrigerant vapor that is vented off the top of the cylinder must be recovered.
If after installing a fitting for the purpose of recovering the appliances refrigerant, you find that the system pressure is 0 psig;
Recovery is not required. [Show Less]