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HVAC NATE Heat Pump Questions and answers | Latest 2024/25
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HVAC NATE Heat Pump Questions and answers | Latest 2024/25
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HVAC NATE Heat Pump Questions and answers | Latest 2024/25 On IIan IIR-22 IIsystem, IIline IIdiameters IIand IIlengths IIare IItypically IIspecified IIfor IIa IIvapor IIpressure IIdrop IIthat IIdoes IInot IIexceed IIwhat? II- II II6-7PSI IIor II6F IIWhat IIis IIthe IIprimary IIpurpose IIof IIusing IIflux IIwhen IIsoldering IIcopper IIor IIbrass IIparts? II- II IIPrevent IIOxidation IIThe IIwater IIthat IIresults IIfrom IIa IIdefrost IIcycle IIof IIan IIair IIto IIair IIheat IIpump(runoff) IImust? II- II IIDrain IIoff IIand IIaway IIfrom IIthe IIoutdoor IIcoil. IIWhy IImust IIthe IIrunoff IIbe IIdrained IIoff IIand IIaway IIfrom IIthe IIoutdoor IIcoil? II- II IIExcessive IIice IIcan IIbuild IIup IIon IIthe IIbottom IIof IIthe IIcoil IIand IIcan IIreduce IIcapacity. IIWhat IIis IIthe IIcomponent IIthat IIreduces IIsound IItransmission IIand IIprevents IIwater IIleaks IIof IIa IIpackage IIheat IIpump IIinstalled IIon IIa IIroof? II- II IICurb IIGasket IIWhy IIdo IIyou IIneed IIto IIadd IIa IIcontrol IIfor IIa IIheat IIpump IIindoor IIcoil IIthat IIis IIinstalled IIon IIa IIfossil IIfuel IIfurnace? II- II IISo IIthe IIheat IIpump IIand IIfurnace IIdo IInot IIoperate IIat IIthe IIsame IItime IIin IInormal IIheating. IIWhat IIhappens IIwhen IIyou IIenergize IIa IIhermetic IIrefrigeration IIcompressor IIand IIthe IIsystem IIis IIin IIa IIdeep IIvacuum? II- II IIMotor IIwindings IIcould IIbecome IIdamaged. IIWhat IIneeds IIto IIhappen IIin IIorder IIto IIconsider IIan IIevacuation IIto IIbe IIcomplete? II- II IISystem IIshould IIbe IIevacuated IIto IIa IIvacuum IIof II500 IIMicrons IIor IIbelow. IIA IIsystem IIis IIsupplied IIfrom IIthe IIfactory IIwith IIcharge IIfor IIa II15 IIfoot IIline IIset. IIThe IIdata IIplate IIshows IIthe IIrequired IIsystem IIcharge IIto IIbe II5 IIpounds II10 IIounces. IIThe IIline IIset IIuses IIa II3/8 IIinch IIliquid IIline IIand IIis II25 IIfeet IIlong. IIThe IImanufacturer's IIinstruction IIsheet IIspecifies II0.6 IIounces IIof IIrefrigerant IIto IIbe IIadded IIfor IIeach IIadded IIfoot IIof IIrefrigerant IIline IIlength. IIHow IImuch IIrefrigerant IIis IIneeded IIto IIcompl etely IIcharge IIthe IIsystem? II- II II6lbs IIWhere IIare IIdrive IIslips IItypically IIinstalled? II- II IIOn IIthe IIshorter IIsides IIof IIrectangular IIduct. IIWhat IIis IIa IInecessary IIcheck IIto IIproperly IIset IIa IIheat IIanticipator? II- II IIHeating IIcontrol IIcircuit IIamperage II draw. IIA IIheat IIpump IIoperating IIin IInormal IIice IIfree IIconditions IImaintains IIa IIcertain IItemperature IIdifference IIbetween IIthe IIoutdoor IIcoil IItemperature IIand IIthe IIsurrounding IIoutdoor IIambient. IIWhat IIis IIthis IItemperature IIreferred IIto IIas? II- II IICoil IITD. IIWhat IIis IIthe IIsmallest IIrefrigerant IIleak IIthat IIan IIelectronic IIleak IIdetector IIshould IIbe IIcapable IIof IIsensing? II- II II.o5oz IIper IIyear. IIWhen IIchecking IIthe IIpressures IIin IIan IIoperating IIsystem IIwith IIa IImanifold IIgauge IIset, IIwill IIrefrigerant IIoil IIin IIa IIhose IIwill IIhave IIan IIeffect IIon IIthe IIgauge? II- II IINo IIWhat IIis IIthe IIabsolute IIpressure IIat IIsea IIlevel IIif IIa IIgauge IIpressure IIis II35 IIpsig? II- II II49.7psia II100,000 IIBTUH IIoutput IIfurnace. Return IIair IItemp IIis II65F. Supply IIair IIis II135F. What IIis IIthe IICFM? II- II II1323CFM IIWhat IIis IIthe IIbest IImethod IIof IIrepair IIwhen IIa IIresidential IIsupply IIdiffuser IIis IInoisy IIbecause IIof IIa IIloose IIvane? II- II IIReplace IIthe IIdiffuser. IIWhen IIperforming IIpreventive IImaintenance IIon IIa IIheat IIpump IIwhat IIshould IIthe IItechnician IIcheck IIand IIwhy? II- II IIOutdoor IIfan. IITo IIbe IIcertain IIit IIruns IIfreely IIwith IIno IIbinding. IIWhat IIis IIthe IIeffect IIof II170 IIvolts IIsupplied IIto IIa II208/230 IIvolt IIcompressor? II- II IIWould IIcause IIthe IIcurrent IIto IIincrease IIand IIthe IImotor IImay IItrip IIon IIoverload. IIOn IIa IIservice IIcall IIfor IIa IIcooling IIproblem IIwith IIa IIheat IIpump, IIyour IIinspections IIfind IIa IIliquid IIline IIthat IIhas IIcondensation IIon IIit. IIWhat IIis IImost IIlikely IIto IIcause IIthis? II- II IIRestriction IIin IIthe IIliquid IIline. IIWhat IIis IIa IIreason IIfor IIcool IIair IIcomplaints IIwhen IIa IIheat IIpump IIis IIoperating IIin IIthe IIheating IIcycle? II- II IIExcessive IIsupply IIair IIvelocities. IIThe IIfollowing IImeasurements IIare IIrecorded IIon IIan IIoperating IIheat IIpump IIsystem. IIThe IIheat IIpump IIis IIoperating IIwith IIthe IIcompressor IIonly IIwith IIno IIauxiliary IIheat: • IIHeat IIpump IIonly IIsupply IIair IItemperature II92°F • IIHeat IIpump IIonly IIreturn IIair IItemperature II70°F • IIOutdoor IItemperature II54°F • IISupply IIair IItemp. II/auxiliary IIheat IION II115°F • IIReturn IIair IItemp. II/auxiliary IIheat IION II70°F • IICFM II1228 What IIis IIthe IIheating IIcapacity IIin IIBTUH? II- II II29,177 IIBTU/HThe benefits of buying summaries with Stuvia:
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