CORE
The low-side test-pressure data-plate value should be used by a technician to determine a safe pressure for this.
What is leak testing?
After the refrigerant has been recovered, this can be used to flush the system.
What is Nitrogen?
A crankcase heater is often used to prevent refrigerant from mixing with compressor oil during these times.
What is Low Ambient?
This is the Standard for machine room safety.
What is ASHRAE-15?
Before shipping any used refrigerant cylinders, check that the cylinder meets these standards
What is the Department of Transportation?
Never do this when a system is in a deep vacuum.
What is Energize the Compressor?
When using a recovery unit on a system containing 100 lbs. of R-410A it must be evacuated to this level.
What is 0 inches of Mercury?
The owner must keep records of refrigerant added to a low-pressure system during service and maintenance if the system charge is greater than this.
What is 50lbs?
The chlorine in CFCs and HCFCs will not dissolve in this.
What is water?
This is an example of a non-condensible.
What is Air?
This rerigerant is classified as very high pressure?
What is R-744 (CO2)?
The rupture disk on a low-pressure chiller has this burst pressure.
What is 15 psi?
Silicone elastomers, for use in seals and gaskets, are not compatible with these refrigerants.
What are HFOs?
This certification type is required for persons handling refrigerant during maintenance, service, or repair of small appliances.
What is Type 1?
Refrigerant should be recovered from the condenser outlet if the condenser is here.
What is Below the Receiver?
If a strong odor is detected during the recovery process, this may have ocurred.
What is Compressor Burn-Out?
To process refrigerant to a level equal to new (virgin) product specifications as determined by chemical analysis defines this process.
What is Reclaiming?
On these types of units, the EPA does not require repair, but leaks should be repaired whenever possible.
What are Small Appliances?
Proper recovery techniques begin with the use of appropriate recovery equipment that has been certified by this place?
What is an EPA Approved Laboratory?
This can be used to pressurize a chiller system before opening the system for a non-major repair.
What is Controlled Hot Water?
An ozone molecule contains this many Oxygen atoms.
What is 3?
This type of recovery equipment captures refrigerant into a non-pressurized container.
What is System-Dependent or Passive Recovery Equipment?
When recovering refrigerant from a medium-pressure system with more than 200 lbs. of refrigerant, recover to this level.
What is 15 inches of Mercury (" Hg)?
This is where is the purge unit is located in a low-pressure system.
What is "on Top of the Condenser?"
What is the Condenser?
You should always charge through a pressure regulator and install a relief valve in the line downstream from the pressure regulator when doing this.
What is Pressurizing a System with Nitrogen?
A refrigerant sensor which will sound an alarm and automatically start a ventilation system in occupied equipment rooms falls under this ASHRAE Standard
What is 15?
When pressurizing a low-pressure system for leak-detection purposes, do not exceed this pressure.
What is 10 psig?
Recover any remaining refrigerant and then render the cylinder useless, then recycle the metal is the proper disposal method for this cylinder.
What are Disposable Cylinders?
Small appliances are equipped with a straight piece of tubing (process stub) that is used for this
What is The Installation Location for a Piercing-Type Access Valve?
Non-condensables will cause this.
What is High Discharge Pressure?
This is how long an equipment owner or operator would have to retrofit or retire an appliance that has exceeded the threshold leak rate if the replacement appliance uses 50 pounds or more of an exempt refrigerant?
What is 18 Months?
A person be fined this much per day per violation for knowingly releasing a regulated substance that violates the Clean Air Act?
What is $44,539?
If a strong odor is detected while performing a refrigerant recovery process this has likely occured.
What is a Compressor Burnout?
A comfort cooling system that contains 50 pounds or more of R-410A is leaking. This will be the new maximum allowable annual leak rate starting in 2019.
What is 10%?
This refrigerant has a safety classification of B-1.
What is HCFC-123 (R-123)?
HCFCs contain these elements.
What are Hydrogen, Chlorine, Fluorine, and Carbon?
Recovering multiple types of refrigerants into the same cylinder will make this impossible.
What is Reclaiming Refrigerant?
If a leaking appliance with a regulated refrigerant is not going to be repaired, this must be done.
What is "retrofitted or retired within 12 months?"
When charging a low-pressure system, refrigerant should be introduced to the system as a vapor to raise the system to this saturation temperature.
What is 36 degress F?
Crop loss, eye disease, and skin cancer have been attributed to this.
What is Depletion of Stratospheric Ozone?
Appliances manufactured, charged, and hermetically sealed in a factory that contain 5 lbs or less of refrigerant
What is a Small Appliance?
Refrigerants CFC-12, HCFC-22, and HFC-134a are all classified as this type of refrigerant.
What is A1?
This type of equipment can be worked on with Type III certification.
What is Low Pressure?