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Accordingly, what acids can CFC and HCFC refrigerants decompose?
What acids can CFC and HCFC refrigerants decompose into at excessive temperatures (e.g. open flames, glowing metallic surfaces, and so on.)? hydrochloric and hydrofluric acids.
Equally, what attribute of HFC refrigerants make them damaging to the setting? Ozone depletion Man-made compounds equivalent to chlorofluorocarbons (CFCs), hydrofluorocarbons (HCFCs) and halons destroy ozone within the higher ambiance (stratosphere). The stratospheric ozone layer makes life potential by shielding the earth from dangerous ultraviolet (UV-B) rays generated from the solar.
Folks additionally ask, what refrigerant doesn’t must be recovered?
A unit licensed for restoration of R-12 or -134a isn’t appropriate for recovering R-503, -13, -23, or SUVA-95. Utilizing a restoration unit that isn’t ARI licensed for the kind of refrigerant being serviced is a violation of EPA rules.
What sort of certification is required for individuals recovering CFCs HCFCs or HFCs throughout upkeep service or restore of small home equipment?
17 Playing cards on this Set
|EPA rules embody which of the next within the definition of small home equipment||Each A and B|
|Individuals recovering refrigerant throughout upkeep service or restore of small home equipment should be licensed as||A sort 1 technician or Common technician|
Which refrigerants may be combined?
Why is it essential to not combine completely different refrigerants in the identical container?
What is going to non condensables in a refrigeration system lead to?
What’s the approximate stress of a storage cylinder of recovered R 410a?
For R–410A, a working stress functionality of no less than 400 psi is really useful (this contains restoration cylinders). Customary DOT restoration cylinders rated for 350 psi shouldn’t be used.
What’s being completed within the US to cease injury to the stratospheric ozone layer?
The place should you join a hose with a view to get well liquid refrigerant?
|6. When restoration is first began, at what section is the refrigerant eliminated to avoid wasting restoration time,||C. Liquid section|
|7. The place should you join the hose with a view to get well liquid refrigerant,||C. Liquid line|
Why do EPA rules require home equipment to have a service aperture or course of stub?
What steps needs to be taken earlier than utilizing a restoration unit to take away a cost?
Who should certify restoration gear?
Does 134a must be recovered?
For those who use something aside from R134a, you may probably create a state of affairs the place you should be the one servicing the system. Even when you’re OK with that, if the system wants work, any refrigerant in it’s going to must be recovered.
What is taken into account a excessive stress refrigerant?
What sort of tank should be used to switch refrigerant?
How usually do refrigerant cylinders must be examined?
How lengthy does it take to get well refrigerant?
Can outlets can combine refrigerants?
What’s the approximate stress of a storage cylinder of recovered R 134a at 80 levels?
What have been CFCs changed with?