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276 276 January 2020 Jaunluyua2r0y 2020 July 2020 TABLE OF CONTENTS TTAABBLLEEOOFFCCOONNTTEENNTTSS 5 Introduction 5 Introduction 5 Introduction 58 Design Cdreotsasil-slinfokreadirP-tol-ywetahtyeylrehneattupbuinmgp(PEX) LowC-treomspse-lriantkueredfPiPno-tluybeethbyalesenbeotaurbdbing (PEX) 2-Stage setpoint control Low-temperature fin-tube baseboard 2-Stage setpoint control 12 12 3. Strong interest and impressive market 3. 3S.trSontrgoningteinretesrteasntdanimdpimrepsrseisvseivmeamrkaertket 3. Strong interest and impressive market natural gas: natnuartaulrgaal gs:as: natural gas: TABLE OF CONTENTS TABLE OF CONTENTS What is a heat pump? Cold climate air-source heat What is a heat pump? Cold climate air-source heat Cold climate air-source heat What is a heat pump? History of heat pumps pumps 5 PeIrnftotrromdauncteiolinmitations 5 IPnetrofodrmucatniocnen limitations Performance limitations History of heat pumps pumps pumps History of heat pumps Modern air-to-water heat pumps 10 Heat pump operating fundamentals 10 Heat pump operating fundamentals 10 7HePaitippeu&mfpittoinpgernaotimngenfcuclnladtuarmeentals Modern air-to-water heat pumps Modern air-to-water heat pumps 7 Pipe & fitting nomenclature Non-reversible vs. Reversible heat Energy efficiency ratio Non-reversible vs. Reversible heat NonPnP-irpeevevrs.i.i.btluebves. Reversible heat Energy efficiency ratio Pipe vs. tube pumps Energy efficiency ratio pumps What does “tons” mean? pPumippessize HeatinPgipmeosdiezethermal performance What does “tons” mean? Heating mode thermal performance Heating mode thermal performance Enhanced vapor injection Pipe fitting terminology CoolinPgipmeofditetitnhgertmeraml pineorflorgmyance Enhanced vapor injection CooPlinpgemfitotdinegthtermainl opelorfgoyrmance Cooling mode thermal performance Defrosting Biomass boilers Biomass boilers Defrosting Defrosting 20EnEenrgeyrgtyretnrednsd&s t&hethireeirffefcfet cotnohnyhdyrodnroicnihcehaet astosuorcuercses 2020 EnergCyoturepnlindgss& their effect on hydronic heat sources 20 Couplings Couplings 1. Government policy supporting 5. Lack of suitable combustion-based heat 1. 1G.oGveorvnemrnemntenptoplicoylicsyupsuppoprtoinrgting 5. 5L.acLkacokf osuf istaubitalebcleomcobmubstuiosntio-bna-bseadsehdeahteat 1. GEolbvoerwnsmsent policy supporting 5. Lackofsuitablecombustion-basedheat Elbows decarbonization: sources: dedcaercbaorbnoiznaitzioatnio:n: sousorcuersc:es: decarbonization: sources: 2. Financial incentives: 2. 2F.inFaincainacl iianlcienncteivnetisv:es: 2. Financial incentives: 6. Basic service charges & pricing for 6. 6B.aBsiacssicersveicrveicehacrhgaergs e&s p&ripcirnicginfgorfor 6. Basic service charges & pricing for Megtroawl pthipfoer “joneint-iznegrom” beutihldoindgs:& materials MgMroegwtrtroathwl pfptohirpfo“oenre“joton-eizintet-irznznoeg”grobm”ubibeledutiinhldgoisnd:gs:& materials 7. Safety issues: 7. 7S.aSfeatfyetitsysiusesusu:es: 4. DSetcereal spinipgeheating and cooling loads: 4. 4D.eDcrecarseiansginhgeahteinagtinagndancdoocolinoglinlogaldosa:ds: 4. DSetcereal spinipgeheating and cooling loads: 8. Moratoriums on natural gas expansion: 8. 8M.oMraotroartiourmiusmosnonatnuartaulrgaal gsaesxpexapnsainosnio: n: 8. Moratoriums on natural gas expansion: Stainless steel pipe Stainless steel pipe Advantages of air-to-water heat pumps AdAvdavnatangtaegseosf oafira-tior--two-awteartehrehaet aptupmupmsps Advantages of air-to-water heat pumps Wrought iron pipe 1. SWigrnoifuicgahntliyrolonwpeirpienstallation cost: 4. Independent of incentives: 4. 4In.dInepdenpdenendteontf ionfcienncteivnetisv:es: 4. Independent of incentives: 1. 1S.igSnigifinciafinctalyntloywloewr einrsitnaslltatliloatniocnocsto:st: 1. Significantly lower installation cost: Black iron pipe 2. NBolnaicnkvairsroivne pinispteallation: 5. Higher net COP: 5. H5.igHhigerhenretneCtOCPO: P: 5. Higher net COP: 2. 2N.oNnBoinlanvicanksviavirseoivninespitniapsllteatliloatnio: n: 2. Noninvasive installation: 3. GCroausntdirwoantepripreotection: 3. 3G.roGCurnoadusnwtdiarwtoeanrtpeproiptereoctteiocnti:on: 3. GCroausntdirwoantepripreotection: 6. Savings decrease as loads decrease: 6. Savings decrease as loads decrease: 28 Brass Brass Copper water tube Copper water tube 6. Savings decrease as loads decrease: 28AirA-tiror--towo-awteartehrehaet aptupmupmcpocnofingfuigrautriaotniosns 2828 Air-to-water heat pump configurations Other air-to-water heat pump system 7.7In.fIluneflnuceencoefogflogbloablmalamrkaertkse:ts: OthOetrhearir-atior-two-awteartehreahteaptupmupmspystyesmtem 7. InBfluroenzce of global markets: Other air-to-water heat pump system 7. Influence of global markets: Bronze Monobloc air-to-water heat pumps configurations MoMnonbolobcloacir-atior-two-awteartehreahteaptupmupmsps cocnofignufigrautrioatniosns Monobloc air-to-water heat pumps configurations Metallurgical joining methods FreeMzeptarollutuercgticoanlojopitnioinsgfmoremthoondosbloc Integrated systems FreFerzeezperoptreoctteioctnioonpotipotniosnfosrfomromnonbolobcloc IntIengteragtreadtesdystyesmtesms Freeze protection options for monobloc Integrated systems Soft soldering heSaotfptusmolpdsering Balancepoint heahteaptupmupmsps BaBlaanlcaencpeopinotint heat pumps Balance point AntiBfreraezein-gbgased freeze protection Climate considerations AnAtifnrteiBferzereae-zbeina-gbgseadsefdreferzeezperoptreoctteioctnion CliCmlaimteatceocnosindseidraetrioatniosns AntiBfreraezein-gbased freeze protection Climate considerations Split system air-to-water heat pumps Spr SpSlitpsliytsWtyesemtledamiinr-agtior-two-awtearthereahtepatupmupmsps SpSrpr Split sWysetledminagir-to-water heat pumps Spr Welding interior air-to-water heat pumps inteinrtioerioarir-atior-two-awteartehreahteaptupmupmsps interior air-to-water heat pumps 46 Heat emitter options for air-to-water heat pump systems 46HeHaet aetmeimtteitrteorpotipotniosnfsorfoarira-tiro--tow-awteartehrehaet aptupmupmspysytesmtesms 46 29 SPeoalsyomnealrapviepreagjoeincoinpg methods & materials Radiant wall panels 29 SPeoalsyomneaealrlrapviepreagjoeincncoinpg methods & materials Radiant wall panels Seasonal average cop Radiant wall panels HeaPteodlyflvoionrysl lcahblsoride tubing (PVC) Radiant ceiling panels HeaPteodlyflvoionrysl lcahblslsoride tubing (PVC) Radiant ceiling panels Heated floor slabs Radiant ceiling panels Underfloor tube & plate radiant panels Panel radiators UndCerhfloorirntautbed&PpolalyteVirnaydliaCnht lpoarnideelstubing (CPVanCe)l radiators UnderfCloholrotruinbaete&edplPatoelyrVaVdiniaynl tCphalnoerlisde tubing (PCaPnVelCra) diators Chlorinated PolyVinyl Chloride tubing (CPVC) High-Density Polyethylene tubing (HDPE) 58 DesigHnigdhe-tDaieielsnsfoitryry aPiro-ltyoe-twhaytltlenr ehetuabt ipnugm(HpDPE) 58 Design details for air-to-water heat pump Low-temperature fin-tube baseboard 2-Stage setpoint control CasOt ixroyngreandidaitfofurssion 2-Stage outdoor reset control CasOtixrxroyngrereandidaititfofurursion 2-Stageoutdoorresetcontrol Cast iron radiators 2-Stage outdoor reset control Reducing water temperature in existing Auxiliary heat source control logic within RedCucoinmnmgpwoastieter tPemEmEXp-eAraLt-u-uPreEiXn etuxbibisitning Auxiliary heat source control logic within Composite PEX-AL-PEX tubing Reducing water temperature in existing Auxiliary heat source control logic within systems the heat pump sPysotleymetshylene-raised temperature tubing (PEth-eRe The)eat pump sysPteomlysethylene-raised temperature tubing (tPhEeE-hReTat) pump Mounting outdoor heat pumps piping Mounting outdoor heat pumps piping Monitoring heat pump performance PolyPropylene-random tubing (PP-R) MountinPgololyuPtdropoyrylheenaet-praunmndposmpiptuinbging (PP-R) Monitoring heat pump performance Monitoring heat pump performance connections Domestic water heating options connections connFeucstiions joining methods Domestic water heating options Domestic water heating options BuffeFrutsainokns joining methods desuperheater option Buffer tanks Buffer tanks desuperheater option desuperheater option Indirect tank option Buffer tank piping Indirect tank option Indirect tank option Buffer tank piping Buffer tank piping Dirt separation 41 DSiurtmsemparaytion 41 DSirutmsemparaytion Reverse indirect tank option Reverse indirect tank option Reverse indirect tank option Dirt separation Auxiliary heating provisions Auxiliary heating provisions Reverse indirect tank option On-demand external heat exchanger option On-demand external heat exchanger option Auxiliary heating provisions Controlling auxiliary heat Controlling auxiliary heat On-demand external heat exchanger option chilled water cooling details chilled water chilled water cooling details chilled water Controlling auxiliary heat 2-Stage room thermostat 2-Stage room thermostat chilled water cooling details chilled water terminal units terminal units 2-Stage room thermostat 73 System examples terminal units 73 System examples 73 System examples Preventing unwanted condensation System #4 System #4 Preventing unwanted condensation PreSvyesntetimng#u1nwanted condensation System #1 SysSteymste#m4 #5 System #5 SySstyesmtem#1#2 SySstyesmtem#5#6 System #2 System #6 SySstyesmtem#2#3 SySstuemm#a6ry System #3 Summary System #3 Summary 82 Appendix A: component symbol legend 82 Appendix A: component symbol legend 82 Appendix A: component symbol legend Disclaimer: Caleffi makes no warranty that the information presented in idronics meets the mechanical, electrical or other code requirements Disclaimer: Caleffi makes no warranty that the information presented in idronics meets the mechanical, electrical or other code requirements applicable within a given jurisdiction. The diagrams presented in idronics are conceptual, and do not represent complete schematics for any applicable within a given jurisdiction. The diagrams presented in idronics are conceptual, and do not represent complete schematics for any specific installation. Local codes may require differences in design, or safety devices relative to those shown in idronics. It is the responsibility specific installation. Local codes may require differences in design, or safety devices relative to those shown in idronics. It is the responsibility N° 55 giugno 2019 N° 55 giugno 2019 What does “tons” mean? Enhanced vapor injection A Technical Journal A Technical Journal from from CALEFFI NORTH AMERICA, INC CALEFFI NORTH AMERICA, INC 3883 W. Milwaukee Rd 3883 W. Milwaukee Rd Milwaukee, Wisconsin 53208 Milwaukee, Wisconsin 53208 Tel: 414-238-2360 Tel: 414-238-2360 FAX: 414-238-2366 FAX: 414-238-2366 E-mail: idronics@caleffi.com E-mail: idronics@caleffi.com Website: www.caleffi.us Website: www.caleffi.us To receive future idronics issues To receive future idronics issues FREE, register online FREE, register online www.caleffi.us www.caleffi.us © Copyright 2019 © Copyright 201290 Caleffi North America, Inc. Caleffi North America, Inc. Printed: Milwaukee, Wisconsin Printed: Milwaukee, Wisconsin USA USA USA USA 4 4 4 4PDF Image | Heat Pump Systems 2020
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