Industrial process and refrigeration units with a 50 pound charge or more with an annualized
leak rate of _____ or more must have leaks repaired. - ANS35
Unless plans are made to replace a system exceeding the maximum leak, repairs must be
made in; - ANS30 days
Refrigerants CFC R-12, HCFC R-22, and HFC 134a are all classified as; - ANSa 1
All Refrigeration & HVAC systems are protected by a; - ANSpressure relief valve
A refrigerant sensor which will sound an alarm and automatically start a ventilation system in
occupied equipment rooms fall under; - ANSASHRAE Standard 15
Non-condensables will cause; - ANSHigh discharge pressure
A crankcase heater is often used to prevent refrigerant from migrating to the oil during periods
of: - ANSLow ambient temperature
EPA regulations state that maintenance, service or repair involving the removal of the following
component is a "major repair" - ANSPressure switch
Which of the following refrigerants is an HCFC? - ANSR-22
What can be done with the refrigerant trace gas and nitrogen after the leak is found? -
ANSRelease to the atmosphere.
High pressure appliances can be evacuated to atmospheric pressure (O psig) when; -
ANSThere is a leak
If a high pressure appliance containing 100 lbs. of an HCFC OTHER THAN R-22 refrigerant
Recovery and/or Recycling equipment manufactured after November 15, 1993 must be
evacuated to a level of; - ANS10 inches of vacuum
When dehydrating a system it should be evacuated to a level of; - ANS500 Microns
When recovering from a system with a refrigerant leak, recover to a level of; - ANS0 Psig
When using a recovery system manufactured after November 15, 1993 on a system containing
100 lbs. of R-502 must be evacuated to; - ANS10 inches of Mercury
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Ashley96. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.