Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

EPA Type III

QuestionAnswer
The most efficient method of leak checking a charged low pressure refrigeration unit is to Pressurize the system using controlled hot water or heater blankets
Which of the following best describes the refrigerant recovery process from an R-123 system Start with the liquid removal and then switch over to liquid recovery
Under ASHRAE standard 34, R-134a is classified as A1
If a strong odor is detected during the recovery process A compressor burnout may have occurred
The owner must keep records of refrigerant added to a low pressure system during service and maintenance if the system charge is 50 pounds or greater
How long would an equipment owner or operator 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 18 months
The standard for machine room safety is ASHRAE-15
When pressurizing a low pressure system for leak detection purposes, do not exceed 10 psig
After all the liquid has been removed from an average 350 ton, low pressure appliance, approximately how much vapor refrigerant remains in the system 100 pounds
Where is refrigerant added to a low pressure system during the charging process The lowest access point on the system such as the evaporator charging valve
To repair a chiller operating with R-22, the technician Must have a Type II certification
When leak testing a low pressure chiller, the maximum pressure to use is 10 psig
Which organization establishes the refrigerant safety group standard ASHRAE
Because a low pressure system operates below atmospheric pressure (in vacuum) Leaks in gaskets or fittings will cause air and moisture to enter the system
In a low pressure chiller, air and other non condensables collect at the Top section of the condenser
When installing more than one, pressure relief valves must be installed In parallel with each other
A low pressure chiller used for comfort cooling must be repaired if it has an annual leak rate of ___ of the total charge 10 percent
During evacuation of systems with large amounts of water, it may be necessary to Increase pressure by introducing nitrogen to counteract freezing
Where is the purge unit located in a low pressure system The top of the condenser
The EPA required evacuation level for recovery or recycling equipment used on low pressure system is 25mm of Hg absolute
What type of equipment can be worked on with Type III certification Low pressure
What can be used to pressurize a chiller system before opening the system for a non major repair? Controlled hot water
When charging a low pressure system, refrigerant should be introduced to the system as a vapor to raise the systems saturation tempature to a minimum of 36 degrees
Which of the following refrigerants has a safety classification of B-1 HCFC-134a (R-134a)
The rupture disk on a low pressure chiller has a burst pressure of 15 psig
Created by: ABOMB79
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards