AU2015268630A1 - Residential heat pump water heater - Google Patents

Abstract

Abstract A heat pump water heater and systems and methods for its control are disclosed. The systems are configured to heat water within a water storage tank of a heat pump water heater wherein a controller within the system is operatively connected to a plurality of heat sources including at least one electric heating element and a heat pump and sensors in order to selectively energize one of the plurality of heat sources. The controller is configured to process data representative of the temperature of water within the tank near the top of the water storage tank, and rate of water flowing out of the water storage tank, in order to automatically selectively energize the heat sources. The selection of heat sources by the controller is determined by a mode of operation selected by the user and the data processed by the controller in view of the selected mode of operation.

Description

RESIDENTIAL HEAT PUMP WATER HEATER FIELD OF INVENTION [0001] The present application is a divisional application from Australian Patent Application No. 2010214030, the entire disclosure of which is incorporated herein by reference. [0001a] Embodiments of the present invention relate to water heaters. More specifically, embodiments of the present invention relate to heat pump water heaters. BACKGROUND OF THE INVENTION [0002] A widely accepted and used water heater for residential hot water production and storage is the electric resistance water heater and storage tank. Water heaters typically include a tank defining a chamber for retention of water. A water inlet pipe that is provided with a first connection for interconnection with a cold water supply line that conveys fresh relatively cold water into the chamber. Within the tank there are electric resistance elements that heat the water in the tank. In current embodiments, there are at least two electric resistance elements. A first electric resistance element positioned near the bottom of the tank and a second electric resistance element positioned near the top of the tank. There are also two sensors positioned on the exterior of the tank that measure the temperature of the tank near the top and bottom of the tank in proximity to the location of the electric resistance elements. When the temperature sensed by such sensors drops below a certain temperature level, these sensors close the contacts associated with the corresponding electric resistance elements causing the electric resistance elements to energize. [0003] When water is supplied to the tank, it is supplied through a dip tube that pushes the cold water to the bottom of the tank and thereby pushes the hot water out of the top through the outlet pipe where water is the hottest. One of the problems with this configuration is that the sensor near the top of the tank can't detect that hot water is exiting and cold water is entering the tank near the bottom. The lower sensor detects that cold water is entering the tank when it detects a temperature drop at the thermostat, which is the primary purpose for having two sensors. When the lower sensor detects a temperature drop below a certain level, it closes the contact and energizes the lower electric resistance element until the temperature reaches a specified level. But, each time the lower electric resistance element heats the water, the heated water is buoyant and goes up to the top of the tank. For example, if the tank is holds 50 gallons of water, and three gallons of water flow into the tank, it may cause the lower electric resistance element to 1 be energized for a few minutes in order to recover the temperature. If a few minutes later, there is a draw of another three gallons of water, the lower electric resistance element is energized again for another few minutes in order to recover the temperature. This causes the heated water to rise to the top creating a problem called stacking. Under sequential small draws of water, the lower electric resistance element is energized each time and runs until the lower sensor is satisfied that the lower part of the tank is sufficiently, warm. When this is occurring, the top part of the tank continues to get a little bit hotter each time which causes over heating of water in the top of the tank, which can potentially lead to undesirably hot water being drawn from the tank. So there is a need for a configuration that solves the problem associated with attacking resulting from small sequential water draws made on current water heaters. A reference herein to a patent document or other matter which is given as prior art is not to be taken as an admission that the document or matter was known or that the information it contains was part of the common general knowledge as at the priority date of any the claims. BRIEF DESCRIPTION OF THE INVENTION Still consistent with embodiments of the present invention, methods of heating water within a water storage tank of a heat pump water heater including a controller operatively connected to heating elements and sensors selects and utilizes the appropriate heating elements to heat the water within the water storage tank without overheating of the water are disclosed. The methods may include positioning condensers of a heat pump in proximate the water storage tank for a heat exchange relationship with the water contained in the tank to transfer heat to the water in the tank, positioning electric heating elements to heat water within the water storage tank, periodically processing the temperature readings measured by a plurality of sensors in order to automatically control the selection and energizing one or more of the heat pump and the electric heating elements. 2 INTENTIONALLY LEFT BLANK 3 j1f004] N oediang and n-vypsuve embodiments are desen bed with reerence toe the folung fiuas herein t1ke rTeferen nmera refe& to Pke par 0Q )NH GC fi ictsP~ a Mir 010mhe OnS of a hex pump taler heate schoadbrtL consistenays eibdia ofbNJW'ilnd OGUj Fii32dfcs a ad emtbodiment of ax hat puimp water neater eenaut conistent with nibodiaen rr eo'in a uen; iO0I FIG 2 depict4Nnt embornent of ia hect bu water heater scPChmaQ COndsitet wahd emblOdims ofth e~inOa 3007 FiG 3A depots a nerd emboden of a hiat cump rater heatr schem~ai nsset with embodiments of the innm (ifO I t depis a th embodimcm o a heis pos) Saaew theater rhear c Nccc ii aneot tw eme f t101"he Wivemtior )t9 F] SA&% att r gaphnust hompanrt ~onf s enst duopiwa te oter 19011 FIG. N iat r die'm :rIn pw An '!S fa Sno Otiur my!no" of a storage tank wlhen the unitin standb mode and wn tere Ka rate or 0Y1 -'non per gmnte c wa r'f It ng far the wear0anget t 1)00121GSIA nd 7B dpid a cmm blece digram and a wansg diaramn resaced. coustent' 'sith embodmnc' of 6c inendon and [00131 FiG &AV8 muinwesia pvocess Per i4 de tcepataroeund lion iodide' tomac conroof rh heat pump CD~dlU~fS1)r anridena elaie als. NA RAF MARWAPTION 00141 Reference r be made Throughoul A speAncan tow "e ennedimernt an antbodimriI ~t "embonec'g Wisrpec -'n r ts ingfln that a paracalao described teat te struotnr.>or darctemdeo my be iwhtded an at leni ane nbnod~eem if dheprese5t i vUadant Thu . tO'sagf etoch phrases maN mefer to morte thai jni one Lmblodtihed ori p<et hi Cdin~'OO the de'ribd rfeanrres ru w ours Kor charactenrsis l my be comecd im ar ntabie mannK 0n one Aore' m bodimaents ci apsnts. Metnai lere acet to a stte~ ma' measn dare 4 wer r .ua~tv of tems. us as YefetenC$to puh fitem inwtmare as 0 te 4(j0j2 Endiei te poen in rtntoni uing cointteer prosvmmed; to conuic a pum wrnae hain. hogh not A aD spcts ofthw -0ese arpone to hea pum np waer but may have ori apphauos as wet od' as for example. eeric wartr herers The controller 1mn be prorammneditohave preset tr1odes of peraio. o. ad - uo he controll vw ho pcOn a d a 0n42pfa tar ten E earure nd data i for 10 in coitnling t0 heat snceswo de Water eaten n ite . the te perinte in data apt s maY be interpreted by the zmroner to airantakaes select trnd inetgien e or mo of theoeed hecauno leents arid heat pump ia energin e o e compressoIin an e fortoo e06i00 lely heat the w to a nmer td vent ;r hem of the ater caused by stackin DErrA LD DESCMTI ON J Vanorus etodiments described moe M hbd ow w in enote :i e accompany ingo awings which harm a sor hereof and thith show specfc emboduments of the inetn Howeer esibuee ts inv he iiipement'4dt *n ay ifern fm; and hoeld rot ne con;tmed as ut othe enhodimine se ert; nera athe these em boAMentsO re prodeds thatis 0 e P l P ht and co0opeteVand wdl uow o the scope o the i eniont omw e WI S O the an Aeor ng thedhow.in~ dea5idoersa pon Ire f ore i oto an s taken k na hnng scnse I "fTe o snsot deo ed sa Ot b uN dei o n n of aI! at pump 0 -a.ter 4 hemtaaimes~ tO.. one am ireldric resistatnce elme- weR> ~ as a heat pumpt~"' e gI ''adan N'eted system" to liplfSli het to \ti fter he2energ regtered to Peat water 15 sgniaCatf i crecd by umbing a1 reemor seatd sistt 5 to 0W he heal froms the 5101he O 'v- SurJ -i15\ Wv> emt trpmCta 01 te st-ear n the embhodiseno de-Rerbed i f-gue b eadh best gmp .taerhoaer sslnm disdose snus CS(ers :0n0 of s'wh ja osllior to tien> ne temperature withirtbe salrite-swrage tank. The damIn trom this semer i used mnot yW 10 se1m5 the tempenntite otfSe water i thnk th 14s O, it timbLodime .s lahim 0wmeter. ir indioedv detect the so erece of a floi event.dit is, the flow ofhot waee and[he associed PoN of cold watex out of and in"! the wate agr nk ospe& t in some neA dma ents a [now meters used to dacaty dn) athe n eCurreet' i oflow eV e0 The senIr psiAtoned [T sOW \%LaP tenpe rturewdna the vater arage tank may t positioned within he 0 itstra ean k o hemnoea on tMe exer or the takicuaai "s Oak dewe fl i he data represent e o ater emperne in0 'Abe itha aie Or tage ank andthe occurrnce o aloweennc transnnto a coflier for pocesting The ccptrnler i- opemai teN cornncted to ecrngc masist'ngoe heMesx and d e heat prmp and mctdes a mnie that hrteitedutomrat ednion ant energiiag of at leact ktnet d the him pump raid the ele'tPricK'sluznce heaters in response to data rec"'ied that e se nrt at s''ater temtper'n're within the watencra omed tho occunrenco to a water low even f[1 Rer teg now to va Ignnca 1 [ de'Jcts a heat pump water eater 00n sfehnantic usisonM t vath~ a & "inboomni dtheende ontia the horn piup sysenkcomls' ,flanZf evaporner 2 1 compressor -0 a ondenses'toStr hreinb device P' Ort ndt least one fin ['i Condenser 08j ~i r'ssembin a hemn egdange reansi dh Nie isatter ith wa : er s0'e aink in Duen xp~aeaoii nha t heat ppcycle asoresegeanr ens thae~ aporator 102 as a Dhed an xe form of :a cuperheoted s toot and!or leihq aityx vapor inmximture Ua' rang the |etaportor tO2 N' refditant enters dhe oormpressor 130 whoe [he pr-'sznro and totmpetune increa'e T he tempevare anti pmss ore are increased inr the compressor 13( sucdit the retfd'iyn becomes as uperhea ted vapor The ctupereeated v apor from the empressor D0 enters the condenser IO Whie ini the condenser fl0% dih suiperhoated c "por transk fe energy to the water within a do age tank 12.i Upor trafertr nenrg to h eaer intia dbe stora an 120.th dre zipmran tutr-nto a saurixrted hrid arndr " Igh goali hqtad inplQ ntri 'N Ioh quahty/sa~turated iqud xapor mtgg exu te csaoenser8 a'nd travelsh ir ugh the trottenjag device IN r- on edrv'ng >e dhmong an 2.06 tha [ressun' and1 temtperatureci tfrerorat-a drxnoop a-tnuhich deth refrigerant enterrevapordenr 152 antd the cy' ele repetsel 0 j02] the heapmp wal er 1 0r 0 i A) Mades a Aaar WS he 112 to: all shin ld water o enmer the heat um p waer hea 125 10 abate it is directed to the. bom ofe sank I nt a dp t The he at I Nspmp noeer hoa or 100 als has elecwheakl devmeats 3.22 and 124 placed near the topand bnttom ofbueter oxag'e tank 20 to on th water [ the enbodiMents oren desexbed Ow hearing edemea are shown nieg ri n the irteor of the a howe other catw Ain\ utrahidig lo pOtAdOda in a.pper and loves elemeits to bat the water in the cipper and Ittws erogns ox the tankh respectre'y could bre similld &tpptyed o The heated ater exits the ea pump water heatersteerop olank :2 at an r1 N Anws ) the residnce or er ae Q here heated wae desired. The heat itpump vrtr heater ihas a remperature sensor 126 posiioed to sense the nperature f the a w er n the upper eg-n of the rank ma r a so Vs n m'utna emperare senors paced at Vaous IAne to an oth emt nture, such he1p. cdenserinle ad pteie. ertu ab et~tperattrR "e P2.l&n' the fisK embSAimen N 'rnd Hr tore Y O sI a e wate temarpere' iensc 126is posinonedu wadh se upper en d ofhe tankaw The heaN pamp condentser 108- p ttone in a heat e scangearmnement with the wan storage tank 52(1 t l en toe heat: ton cn- r v- xn . ur nthe iInrage sank The sm indde e s a conrioller dI 52eqaipped with a ntiemopressor prosraanned so itcd Jo'a swter tenmperaturso io-a rmod rik. hich is ooapnur conneedd the heat pum wereater and ouigored to re eie dapt WMCreAs oh tem4peratret readings mercad by the singlensr 'R I e P"omrr readng receted by tihe conroher la2 are puseesed ba th wer tem'per A d til ow module to deroane the seatprnhat' '$$ 'wt-en the tankl 1) Th' rat t-mtpasarre ad flow mod ul ydThn. the routter 2snher taonfigged1 14 551 1 pocessKdatav pAesenati re 1 - inadings measumd( 1Ng1e sense bo to deerdere lie nax ut-hidthe ternpei anare of rut-r i Ie wnar sSat ork 120 chanes. hr responsen to the~w sese ater temper atur c-and the rae at which the temperature to ya w oet-- vnraen.: 1e ine te .en-toller 152 determineswhich oft she comrprss~or I r anipper de"-mc rstan heater 12 and -' '- erteblirtresistttce .heAtd shda Ilenergier, arlbs nw lonai order to heatite water wid-e ther'e r r'e tuurk 1 ,i The Mair'ate I2an< te ~e tmpermum and fo modtt strd therein oeg wih the 00n sensr 12 ore operotnedl configuiredI to effeciieli' respond 1o na- xaxnv mt owter htng withduwsn ftroxrt dhe wveer 'torasye tok whih caNSs \Wfl tepmgeaag hereby edinnuminAhe need forA second vsenr to be p\sthunad dn the Vwi pro im of ce xate stone tonk 2. Tis rate oleprnsp.auoe OcaLg Winfota co ukas :A ti 0 a a Pow AMte i deeeti the pronmte how me cf waer eing wiThdrauw fog the tt for at rp1 conarmang e detected rat of diang ofa eperaite wn- i I a Up abl mp & Be emp;nca lid determined teroperatni dhange riem i rateiadons ad choosop the flos tate associated ironm l th WTade- doses *Mo re oketed tempcraonre rati ch;Enger 1U)224 The sytni may ako be programmeo etermin'bow much 'ater is Used n a zrnojoece of vo p ingderf s 10 toU ii urtcimn to dettnmit the ost effeieolna man-e theatthe unecarx d ater~~d addede wee sorage8' 1 t2 D {0O23% As isaated io nge 'h Cho eond embldiment nines a dRoo rneter 2%patdsoned n e waTer mi-Aic' $4 22' ha mngt 216 traosmnts data renpresentoanvenfh ci iamoL of water 1ksov into the water sorage toak 220' the er temperature -anl mode withn the conto "1r 2 0 Undericunsances in asmoi s raf 3ar "me rnma VGfron the putt age Tank 22 inm sh piedidsaf> ime, singe sens. or 226 may not read changes ini water lenerdIUe3 ata speed that facihtgats immeadite reco' !on d te conroler 252 W etca e nro'au odvatede b5 Ien rVANoed 4 om the wate stlae to. a 22K Wh ciai' Om ntsf M,,ecr ar23 emmtald frtomVto ''er seaga an 221 the enefr'ingefit mare ad , r aidditkiemnntg edtmtti rnay be 't&'SVV r >rdei to oet tte r o -t, di si eficient and tme' t mner: The ontrilet 252 aocesses dae i rep 'vmsvnn t the tite of flow of water imto the wat'r -strg 'tankqt r2eecv'd from 'he Plow rmoter 11 aong ith NedatArecelied from ii se0vo 22 6"'ndr to de- i W4-i Kih ofte contresr 230. te ipper en. distance net 22 ond The hnee eoleet1 rescstanee heater 224 shall hbe@-" ene-e in border '- heat thewatr winhin the water stcrati tonk 220) 14M24] The emboimnt ihmI te '.r ( 1 Figutre 2 ale- indtde a second teinperantre.sensao 221 Ps te waetr it lne 212 nirsder to sense th eperalurs of the nto- flowing hno wdtr snsage ttk 229 dircugl he water ndet o 212. The Onltxier 252; pro e data%eCpO1nae 0f the mperae tlk aterfo iato w\va atg tank 220 tihrougt he \buenter inlet line 212 in order s dtennine a pcctedh eraco tWre o ab water s onfa the water st2Kge i1to (iwe a Pow ng int y the waer storage toak an a hated water Aeerhdknthin the at storag'e nk are com ned. The sni to peoe a eesuida tenpev? teroot the cemation a unh atevd water n t Me into te wate siortae t wak 2 an the ea w dral t eainit at stoaage tank 22 aows the coniraui r 2 to pwenmpively an atomaticany deterine nch of the compressor 2) the upper electri deestrarice healer 222 ad the otver be riesit ice hea 2.24 needs to be ede acd inrepde to he int thewaer th tho vaer st ag mtn 22 'sietmtd, the hanp Jt) ttt weer threat indhedes..l tt a ion i~~temerture Sensor 232 whidh s confredto transotn iat repr escuta& c of ntcinypertnr cita. e sond ihe watu r slrac ik 22u tote ciotolhe 23? fr procesog. The 10ibe' l22 pmoceses dat repeseontash' af the tmpeVure of dhe te tOuiing b he Wte strag tda k 2>ij order tO dNetine the cfincy of the heat pump sgum when tempelor\O 2Au is enerjzed to hat the wetr wiaath water storage teaki ow2n ] In the fist ad second embrdments ihstrted n Eg ad rep lrtbcause thermt nis ar used im nse eprare "a cppo'ed the bi mal sensor wicho a comony used in te indut the ssTe a 4 ctre W2p2 detect smanha ge in tmrattu t i ter tempeiatture ad fk ss imdukde ahn o 'coan'd.rm1122 prsss the tnWeO loed tNOmt byt rrmperitrifsensi "K 5 ~no detbytie rate 'oage tenmperanres measred enrsor N2W&O~ ove e N-or &s-ampt eI ater $31ti An~l' baiS ofl Sta C htee to pwreoials doene temrperature and thee a urer dma a smati amount of watr au"h is 'hre 1 ie lt t han,015 temoperature senso it;226wil deet some bB Pot a s'iI its change<' 0 ntert teiperatue' it ispe to det-euish h-61sne"' '&"' 4 w t lgnta 'me tmxued tf a svthdv' 5 ! in wamertri xt er .s.rae tad 22 and am dag e inperttre~ res'-uwngomn the H PWR so-tm beig go stadby made ad ne wM a en is nssthdNrtn Uxtetuse. t' ite temnperatturC Pd w miodutlkmnos the dedne1S ateretpennure measured by the tentperam oe sensor 126/225 ors timea In stanidhy mode. the decline in temepeantrneasurod by ltmpeahireaser 126/22. is a ort slow decline As soot 95 as Vvaer IS xvw wi e at 0 ja YW&M t the rtne eC % ne mneagud by tipetm tsor 0222 is 1u than the decline measuxed by smr 26~K hecn noa sp bein wvs~tassw Accord ingx- a fast echie irln' v ermperavve over 131W m'asrted by q seUnT 26 is an Adication ohe cmarear 52 tat a fow eet has oc4ureo K enmmdmmrd suh as A! I, which doea tm indudea. flow mnietO measure t'lo dic {hvevn are detenmud by th' e maroh 152 based <'nh spe ked wih which the tepttr ofsater withv the water storage tank; j1u0 m; 101 da f of a oW tVDt the c r52 decide A ene al "h UPIetann eiA i a conm aSr and niO tran heat to he we 4or aIaNg is reirtttO ed g he tempertaur' back up)tothe seA penrdt mpeeature as deeed bA n rso I .n d r te wr haangut ehament aor tnantngress to be o 'i opeudetNsa of a ow eent and - he waterunha low" tu on -f te 'IIIb. x anig watrae top of Th Water s;orfge tak to oe ovehec; By"Ma n hro ' teiner eido e-meat n24 o pa ddhe u-per oensh e 02 i Uhe umme; seendal irwa ofee-dwi t ct rest1t tO the smet n the top of th- water tomw an I being oerheated as a ERIC of'sackn jI02 Referrng sd: in' embodiment o Fid 2m pewperwaurc senser is alsipn- aue"'onemp sr 23 seictdbreeaenued2 ts e i tep tu wf the spe heted Oapo r S? sod se omnessos mddui ab essend dy 5 the tpernet -8 te vag er-leedg the ' ns'er 2Qn0 A temopetraine Nensr 2;n is n s- placed a Ih- otlet ofi ondns i 08 d in ordr: lon In ethe temupeoyre of the Angev im en g te condone 20Q1 I T"eratur sensors 34 --'12>% 'o' a-w-e o n d 25 e; approdau energy ttnsantted toe he watev tIn the waler storage tar-k by he cendeuser' 2Gb Dantav presentrse of te drap enemperutu-e acros the condenser a measured hy Kempxe-lue senison 24 ti' ; '% N aentied to tua caniuen: 252 tand proscsse Aon Zs ith the prvosy described temperature data in autoatica'l dnemi'e w---t -r additional hnating in-tenms T or 224 d" eed tonbe netisatedIei order-io hearhe water flhn the 5wt stooage tnt ""i20 o~h ik to iemperature 5-e'sn'5 242 and 244 are used io measue the dnet and euict 3O'trpCPatwas\ 3\espeir of the evaporator, to mtofliOr the evapflortam~r} upeat -- When aop~eatntc 'ropedy, the tem-pesrr to ditrelu bhewea the udetm mapeoaIe ad :nPet 1empatr didts d be onh orker of In 1N For *eftkentoperano of heseald eaM and to ! auid pwoed! datge bto e 10 1 e n m ret'nt o'u opopratng, ihe ionrtrohler 25" is tofiged to nrm sff tie ssaled syste if dite temnperre enereniie between the orelet emperatune and i ilnder r ;rrerainee etss thanit F. Ais i he t'erx' nre Aernce is22 hag a 22 nal may be geneated to Linrm the ae § in& fnaft 28The syston controi'r 22 is upt 0 eranWe connected to M he hea pun p water her A0) and confkgured t oea& a t0 repres taown of Mtra me readng nearured by-the itenpecatr 6e.d 2322 3 22 and 241 Dring~ opetwn of the h =at p wate he water qn a ome eMe"nc hoig ris mey2 end 22.4 ard Cnprsen 23f ma 2a opea e te to n mr w 2n riall vto mpaessor 23 and the ofhctrie hean elenat222 aind 24 du a td oprae tvh same'l IJEo. Loxwever It in temrplaad threv i el cid heinS s'l' sK2 or 2v and the iprno a U-nt WhO \ Is ceoniph" d u sa at eceniz bennr iemeady 222 ard &2 a P helompwrsoi 3W nyopeA e a a snen no Dopemtag of Ohainaan derens 2 'a24 the samte tome msa irezc cials eletrical consiternn tot a he>en rani break a ®ddaed circuit eito to ceommodat an ineretsed crrnit (K Thcefore in the ilivsta R~' er~uoduenas irhiitaneGUS ~arg con ot Do6 it fiing elemyil knvaow Punnoided 4OO29] Reringmon to FIG FIG it 1css Ateat pump water heater 3i ' schem~atic contt'15 th embb oieh s #fthe inention .1 Thente primp 'vctem' tptisesti5 an er-trapter 302 a codetre sr 33 "ondenseor a hioun dec e 314 nd a iast One muan44 Durin" pefanono tun"at apmp cydoe ate a'- t exits the oevaporatot 32 an a >surrateid vap'r imd/or high qpity go i undt' Phe heat pun p water heaver 10tcs es svmathan s 4 asd et o aan t-c"' he embodimsent ofP 110 3. epenhZsa rsmrf i~As 'taced at' ''inK 'U'-e upper anetmaeeent 22. The po\sidYning or attnipertre' sen'o" 8 ins"e ofl'taa co''cted toa rtd 340 allews for VH soater temperature o to e sese daed rahe than na eastig tank walt. emperaturo and intringits waterte~tratre; Pem'orni the temperureasensor 2b asid a wa ot'etanl 3:26 improves tenspoeu i' tune anrd z'racyof ate. tmp'n>raWes sensed a peraure s eansr 0 Poed the ouat m the compltesser0t30I tto aSure theZ "umpe 1tiWScg temrn~atie o protect uarns. ovw'thatng 4e comrntnsore A temp 'iraetrensor 3324 ps tvded 'to measure ;nert eI teperatur dn~d tmperatue seoses 336 and 338 usaure the evapoao 30 tanet and ac tempeatses retvelsB 'The emb odeaen f the heat ptng a wa'ez aue' also has lectrcari ng ment 1'M2' and 324 phednear wh' nop and o of 1th ware: stage tank s t'peeidc !3MAP the HPWRII sstnm W indetas aconimilr 3"2 fhans opertvvep cn&garod to scoote da 4'5epre 'tt'e of 'temperanare 10dihN astred by the tempdIue saers 325 3 S33 30 and 33 ta foa n ''nn s1 ;A n 30 mruse contrgler K? vhgm manaerN as asdesvabd witQ fren ,s AW ~t .tx . th'! 0 a 0 'itlglt"" '2. N"'i 'gj'stj l'tII TO'r>'x their 'Aounteratin athn emboteae ii Mga 2 Cntroner 352 is otand to roes aomresof dist e s at a4 tm tro w;opessor Off if" tbe s ald tempeo;n exedtasdlrtdreeeg tegai selected topr" e ran of h ce er eame ina ON yu.ir nmoiik x reeic epen tr of 2'a On is used> The heat ump water 3 4 ter K oin'ud drwt inket 32 t alkmhing cold adtr tOoutr the beiat ptuip~ Wder tt eat!0 WhCee P Orected o a :> the h Cona Wf the lsak 320ia adp bh 3v ih eai ud esNhe heat pump wa'wt'rneater near top o rnk 3.20 ai exits 4M and floss t-e retstdence' or other place where eted wateris deireA. Thele coat tmt> aer hator t00 atie in'CIheS a flow nitert 3u6 f-J-tOamsorsg ith' anuoant and the now rar te Is the weer stoage taP<k 32 teow me- a ters '6 rseasuroshetota om ti wter that a Nlowed in; e Wal-' stoae rtk'20 Wr ig eats g tt ie N m p ex ampk the flow mnier 3 6 ay> daet 'a Ithat a giern month ' honmesoco e may hase usedi 'tils aheuvs Ofbeated cute" ' p" ugrsugr '338 "" '"."33 -Nand ts are cnaiwumd ic rammit doaasp-s5Entatti e us t'he 'Deperates mess x"'red5 to Ith o Mik;) 2 eny 10s1ing h? ticotder W'"o " his eunpet00Ce datnd now rate data to tua'uem*ca dheuermine wh'c c- o the compressor 3 O0 then upper ecttierest4ancei h t> n - and the lower elcic resstance heNOrte s'-4 N labe onergye d int order u'o aathe water nhit thewa~srteurage taok 20 1{W31] Ri'teudna 'n to F C -4 #7tC 4 dep} ts a heat ptuup vater heater 40O cemaW consste wns erodmnofthe sOu 000tt The had pt!DmpO sstenA u of '12 a COsat'\U n sinhr t that Ow4 td in hai 1ex\pt tat y nseo 4 subStantiadh ct.Oerz the water tank 420 side wagain ttIng 'he kbht to>1vid mre 0 eaj to1 nhi w thin thet, water girage lanK lhroiPb gh QW40l m eneg pped arouiin de *enr eite war stamge tank 42K (M) Raeernow ato t A and3, FIG6 depit ahea pnrp ate bete 8 schemanmil endistem widh(b>amn> or ta inlendoi 1he hatpumap sy stem of tf tennguoenshe mato dva ilvumrred in ngmt i except that the eendense'r 08 mnchades a es-inmdrwav pornon wha ' at kast parnrahy (7ovem the: side Sag ofsa nattnk >20. and a botam g nOe p d acrems pati~ahy cayers the haoa tv' NSa hkfam ' the aidt\ to fied aVc re WY heat1 if fnr conhdense$to Sieo coldes. wter~ wininPhe watr tor)&age 4Ha through the bottom porItn at cndensier 508 hin the emabodimert Shtotma 1 :-'Is ~ i8Yai titom i on of condenser 50' 1 inl coned thf th' tom wal,1 - k-italil cuf rn utnico tempA1d that Ihe om eton onendeimer4 84 4 Wnha l 0r ataNwn lt to b'otimaww \ mays be >n Jtmn e et iguattim'i so lo'ng as dhe aftemtfltvex contauration ag'u\s fo0 encased sofe are contact ith botn waH 5 The heat pum p s10ar" COOSri s anK engarator tP s compressor 530. ta 11nde 5e1 a lrotrling; daese 504. at least one fan 50A an ttltetic hetfag efements 522 and $24 prced eayhe toptand hottoml 1 onb ware\tpage tank5'20 respeci-seV A mbem ister 3265 is placed' in 0X 520 XaMr ttppeneti 2ngw eAN uamn \C2. {03 The het pt~awaderheter3 5 i nchudes artinet 5 ha anng cld waitere terIahe ha0t pmp ater heater 1 whore 4 is dheald to be beionvo i tkt 20sia a dip tbA to The hatd tr ts e heat pp ts " heatesor n top of tank 520 a; et 514 and iows to the residence or other 'ae hera heated warmer desireads Tempetuare sensox 26 eConfigaud to trazamntdata mpxas-ose of the en p>rThurC ~stasurd to chrco r 2r preansig The controtlar 52 Oecsse ' da-{-ngrecstide of the em~npere'0 oater wtinad the t ztonde tink y2 o ra to d eten ine which ofhie cmp-asot> the upper i&e-eciresenee theater. and dhe lower edet r--isnne beaerWo War aD ha be enr d in ordar t heatIthe water within th-aw' e r iin stMre M 0- Q ' W 1 1tet14] Figures rA ars dh oka a tnoustrate ahea ttump stater heater system ars whterein the conde nset 508 is eenati'l cenm-etted t ortmpass$Ox 5:30 in a, -nanthat fadiltaes dehviw cf the s'uper heated ref gent eptdrom the compressor' 53 to the cnrdnser 508 10& ar>nndreerb the suotheated reanfvam por at iL lotesitn n 'tawled oh potion or th1 Gcndnger Os huend prntemn h ttof the Noer storage tnk §20. 3 viowma the a per heredc tdget Yrtt 'th'Ot$Adh te ondo 2 se I 308 VWa te tonr mo wtap a mi 1e4ld" 4th lowet pXhtOttnof the water storage rank 'N20 anrPw fo lthe" super hnaed refWgerat \ny o atrarina'' n 0 Uv n the w.. tNaag.tn 32a at hs otdest pminflt Te embudimenOsMtated i p'es (S anmape supe heated re Pie rao xaporo thecopWVon 4A t the rondenser 08 ' ai top bottoi manner ereby the supoe ;erefrigerani 3a tqt in hoetat apt engages the urpor andt nidle parrvon of 0h" w\aBtr storage ami 2N firs a ih dme embodrmets thes r~ It Sl UwOSI pottirstn"V Nh wI'0xbItorg nk r' atedJ b' super01hoaed fehigert3 "': per5 wiaia Th'ClindeThat~ hot h ben hCydt d th'C' ugh h cndenser §1 and had heai removed hrthe upiper poruon of "he wirer sorsgc oak §20. The onboicments inxated in Figunes 5A and +iYQa'v'otfi'rod to' facdttate heJatamn24sidon of heat &nm the sper hea "te >apodraaxin ihmoug the Scnamer§0 I Ut the dx w'trwohin S< wa31t ter f'rage tank 5nol m" CC do i More spedhedly. i The embnditeUt ">gA. he screw hoet errneram n aoTtiex eners " and rows ugh' botom pornIo of e condener 0 add en imersAe c>b 5a rno01a £ pndense at h o torat pAmuh of thcindreal prnrTo ad Com here x adan; opwfto n nroh he POtmdno pnnh anite sde xl c' to water nk ad envx he condensor 508n'r'r he t'p of in was dag tat''i2 0n he ast >~etit suaix' lowempeumre grado.iid the water storage tank 5AC Wa'e t ha xxha txgscal of the more con estioni ap to bottom condenser arrangem ents nI bhr puot at ' ''r wamp r rhe c6ti'guitititn Of idusatidte emb(idiment 01~ fi t tepterate Jadem'4 in U tdake th e orert of1 N' htoe been adered. eIX)101Vao gdiese a e order of 'I 5< F Wt§ FAi cnre' ognahear pump wxater neater con ygu"QiONs andi i 1 from the lowerelement toe'he foo of ite tank #05 Caniendttianal electra c mt theater imeasured from the ama heneathe power MePmto e top ofte arkinefecric waer heaters, the Adt an be oser to 5 1 t hismeans t;hat t fh AUmsradvx eoodinem ine ernrre uak S 'of xae has been headed to the setepot '14 temperama aot jtdhelt wate ni .e op podzn of he water aioragW n t'& 2 This confiattani is meAy >meti W reducing e teriaptar gn iin Wte san. f'oweverI ct l iaed tol' fg pofeni 1ren1gerant imitorn prb1Z nnde certain reiauvie rare cotd e t1inco min water i a cd ane eO V 0V IS F a,1d nit h tt b of the confdpaisereoil is YAposed" to the lOIY t inoigod WWW ithe >ntgebt 10 fth C&mient1e1 R v A 3d to >igrate to te coldsbieponen of the conderser which is the pa;on ( enng beneath die hoomm A he ank raher Oan raAng up thrm the p0 'tt e> 1B coildeA 'is vch cieumsce thedis atk ridd wall resltig in not erotgh "rig nl et, mng to to Co(gressor i e en operanen of teadd SySiOn Ftexalen i a0 gataa storayo tan a w'thdaia on the n0 eri' apposiJata >la'l .g of wa ud emlt stnt a coniom This inao ldov is M oe in A 0mod imdOnt Asiated Am Er0e SB w h includes a Patm Fun I k% 'ncaeredesin coon e In thydig 5325dhstr'ed jn lire% SBhe "oprflow Irst Wn.tg hiadPCe. pot 3onx ot 'ndnse Sc mThe nkto Ibis ponim ofth c andesris hPCadd A ia lowe n st oint V o Co xtndricai C& poion, The a1.ol 0o 2 up 1hm24 4e4part1m . theandens' c .o th as ea Wo waCt iank and then llow don'i and trougm hhentom portian St on We bhtnos of tank 8 xning fde con deser at nohe botm of the tak This arrangement sil 2O0)OAr the 110t efiget" >1ap )er itttiiliy to) the aeld1t gsoi ofthe tark proxaute the booni t owea by priced g up theow dto p e AR oriobot redmn1 the honm poriton, he coldest poditon n'f' aw dese ri newc ar .he. ord of the cGodeser Od Ite Campesnuiis t%0 #a1 tohers>ws r geat (Wi0ngh ad otit of the COfldenset PiasV\> >i" 2'lf'gdhe reingtiilgtion prolkn ji 5H Bachi of the Ctbodnnena11 J the 'l hitatpln water. '1 ater1 'di ilosed in h ~ers 1-5 bin ft inodes of '±ea en Ak n s i"Inc mode a het pip'Inlod , Ay brid mode and a h dea n T ho "ovTdi nedc o"peters Unkg o'a& cia i~scmsilanc ' I 2br lef wmp itodek Ues' oc' the sealed Swoem dItep >.n the comprssir>h heat w'aete N yf'Ihd M e as e sealed e NOnnoruen by it' comressor as We penta'gexv SU1COr0 sore t.Qed1' the water Ant>.e uste upper siteieenet enebie a nore apra reaeo ra.> g i'11eves canng a rdatitaAlon temnperainre :condoni K he tainsu a when > N. 1ZAlig an edZ't Of setndti em~pt isa or foflowisg the vlht awa l. elatieR arge amunt f hot ntes n a rauaietssthou o I a Ldw h d nb i de theth detxad mode svnec9vey use> the seed tt stem Adte rpes deote eemnhbut iaszs seed c y ciues 1h 'low' 'r heouna elenmeit to enoeaptid nco-eriy eeng reEarlsarge atn Ottuts&tat''tare he-to wiskaahighii a fainus an extended ime {tA ahe OtqA im s pera n al pit m odes a respondd smad C 'onkt xtis. 1~zrartda Vowerirt oft 1bitinperatture of the aer in tih. i'k due4i Lbes o-m -g ahe (ndateCstank wazns a-er ie whew-o heatis bin'' appfled and tr h ti0 bn *g W 11d M V an Owl cOoh g t O iis TI l of the c-top-n e remc --iiitieg brm the withdt wa' r Utwater from te to-pf th e an wich i paced b- codinaa inrm he bottom podon o he ttho ughUn c dt iube Why en te r inath-rawn Otm the waler stomse in cd wa 03 s leoughsa i sp $) e >0 rephn cc the water that ha s boon remeoxcd Dip tube I 1 pushe the coop ;e brghi i to he bttO m of watsorPC a tinv 1ow T cOld wa-ter bens to rm-is wh the hot warter itredb in tank 120 Floes-er wh-en theed t aay enters the ak E2. toe uppe sensor i b cnnues to read he tunpgemttre of water mi he uppier segiog c'h a which is no~s a or diose to the set point k-e. Oer time, dueto unng k-tenutur' esun, rt npper serso meins t op Beause ws m uses s rumor toe'ated near the top of' te tkt- contuiet nteedts to be abW o rospottd to snmall rermperat-tre changti eed byV hit sensor i ocenanited by-tadw evnt tnning en t las hoat soturce 'o b-at the col waler that has' zvntereidh -onhom posito f sre rtan aY t -esond tit tacits charHges itemtpeate pfaised byw standby o -hu rathe than Jow '-i nt coohing woi result i unseentii shrt ging pOOh) j easee th-e cosuiler t 2 s citnusii recaidnh dageeta nye. .tii nithle emzoerimofa-ate wihin the iitr stoange ltnk 121) as, tman.ed bI ppe sensor A2iwben the temperatm of the water to drops the c:,otroi er i K1 isneatg to eneitU dionuid hansen -a dipe ttintpre 01ue s a by di andrto -s dop in temperat-ure dot-' o a fow event. The coaroler delectisa .idcndion bys deiet-jg as emxperaiure less than a threshoW temsperart' which in the ilnstrat ve ermbidxineoxs k afstredeterined aiGo co t ICoi te tut tempes-ttse; Th 1h Aso concoler detert the scond condition by dcteoing Ie oeturren 1 now event eihi b input 'Von, the meter in ee einhadhiena that eMpk such a dnest or in mbodun upot 5o enuiped p rocesi The waes tempe anmr dota 4 a n l be herewnatr idcibedt and h deutnag a 0peram less Wan a dnesheid tem iperie winch in the iusa u e embodiment a second predeteuted o.fst tonJthe set point temerat tnch is a t colm otet thawn the firtofft sos ao eaWbi te conrolr to Aesnond so asmale 1ttumpen oe differenid when a flow noest is'dereded. 0I13$j Hn t hqbrid tie and e the T 'r dc ra md cmicr ei. ttan Opewtae toms "ffeti e O coditon it whi h the Sensed lemp1xatrof We w ter in th antk is significan l nw r thn dre set pointApe r ur uho aw bnht occr axten Own iin thi r ith odd wateror oon the i K n" > o ato ttWsue l tge amnontd blot waterI oser a relairvd shot priod of uma vs h edit nort e ewfet.ed tohet'eia s okd tatk contaits 90)f39) jo utposes ofanfillusrtie exam .e. assume stne ws er iorag tank MN shon i's inur is tof or waer nd We malade 0 T operation is h'iadd Nhcn HP~Ii 0 its wed on, thSp s4 sor 126 senses the tempertureU O h e waer u .t ate rae mI dt2 ar nm asats d a resu asve af the mar epner dure to Qh ontrer m The controles 00 r2 pacesses in daeA eeenta t(41the taurtfl~~ur-' of the' walter xin the water sereagte tarde. n2 and ddeesmiesthat ii below a dee d anku thieshoid soled to ->esepes st oa Nisaten peraturetow enoughi t vneqre energtdxtdn of tohe hea t sosia manner rended topidls heat the waer at least at the toP1of4 0 1 n wh a i w i he withdrawn utrsi to a sesaperature at le snar the sea oov towptre r ' reasenthtennx of' <mtin this exemplary emb~iodnment the cokd sank threrhole ir the Iy beh mde isser t 1S lower 'han she set point. p PS eg. wiheT '3 the s5 non nerpetnee in the instnie gnbedisessts the se poin itseledanleby she user'fom a range on he order of i F 14Yw A acadon mode set pu ns o W F its to ax taie in the iisrtise enihiments' Yor tans erenetiga lon periods nors-se, rot esamle> 1 weve &c ses psosn temperainre Pou d be seetable trosa 5omader or nanowver rato e or nkmidaigdtteo dam 5 a aloe seleted automan Masicsli sotocrdatnce wih teereattoe coxtrol alidthm cnplermemec a the5 rctoner Regaxdiess oChow d let2. the set pout tem pMt d epreseots the desan- or laet tenperatre tor the watenstored mse hod mes ynder these conicto the oolrh 13 nergites igper" elin e t aanag ment 122 in otueo to heat the top pudoiton he water witbc 'cter ste0ae 5 n 12 Th ma the wete03 temperatnreiache a secoord hwbrd ihreld toperaare whics less than h s& poi1 temap somren bikse enough t: Y iOn the iat pamq> ssin to become the d t S ua e soma hem the wa r in the oW ponion of the tank and to complete the eC A eithe waer temperature pi Wh Wtak to het pod tevratur p imhts orno leyr time fte CommilOe' 4 .Nk\1pttc to cootue to nrg 00 tho! upper hea 0 eIenta n 122 undo k cilng 1dW represemacv t O em~peidureCs at or rbove hi s'eond should ATmr atY which thyim gn trobcr 12 causes the apeo enetNro .hhowp eln.nt Q2 2a into hobe entergize Thec second ttwhuld is set bclow 1 the set point temoporatwe mu ordor o Amposst or mperaire omstslot 'hi'm1 be caused s a esuh cf the !sdan benowen the mapagit semet0d the pet beVtNnge nr 22 ncethe tempet10ure the waite proiete the uppthainn elemn122 when e element 5 enen ed igchet iYo bin h imarme he sensor 1t lotedC; wn th di of the mer.. ixkidnt the diecas pnnd wilethe naimenr 'r~'ek 'n; ttai upper haaing elemen'i22 to 'he senr I2 5hea U' stl binguadded V' to he wtby the dee~de teaing'deiment 122 .Acodi t.. thieeen heat ma.r cause the" tem torme of the Wrate 10oened OWeSeitOt otperattir to the iii straivi emetodimnenIbs second hybrid htWeshred tmpera t ts so; seted to 1)0 g' ss than; the sot point tomperahir j0t4$Q %t the. ugget etrnc htiang eent I 22t e denergaest in rnponse to b mr in the upper pson fthe ank xcedng he second hyttid thrtesiaod. the wayel il the lowr port)0 in the \' tttr torag~e LEa 2 colhunsiobe catld. ceote the water utrri3he oo a no p o i adhe wa-ti setuge~ tank I 20 'annoi he efsc ~el aled with upper eth heone element rw To address thes onntino d up o p Menerguang cp etcs; n ng element t2o 10 o;tmer 132 einergires the comupresso-r 1 3 Jiig hot rigns imrugh the condienster Ii ars$ m v50)5 ater stomgce rnkt 20 t h e aer n toe laner pron of the ltansd conones to ddsoanti thecessr 1 eetgd vrran'istata to de cOWOliet 52; rep resel: etpemrahe 2reater than t equal to the set ped V Upon the connohe 13 eteivian'l l'od pice$Sn doea r ese'landt of' a sensed tert tempelarat e srt than r equal ote sei p nl emperatre the center I~~1 u.001a On 3, Nt Neee" I52 ramisaga todee e he ompressor Dt . id the e sdotrue trns son tf heaf m the waiin a;ia storane tank 120 In t hybrd moode example Iw co ers fronm th sod ta condiorn hat is having -rought ohe coe Vrate sen pod athde $ume to the Set tiempmorn md in the asence of naw etihem bel pmp t en de.energied as long a the tempernmre in the tank FgttiiS abe a fhed fixhod threshold teimperatre sek 'td in be suftici"nly slose to 0 t od 0 mttpoeatre K oatt eoprabic-teopemartiu t 0 ank wiPthot''messive cyvuao to reoer rnm the slow hean oss dhr'ough the tank 'tais oer tone ihit h e idbstratn e ewn'e Utoet i 1t "at in . if the sensed vse OTpeianm dops nekon T . the seaved systent w tnergidnl the sensed tempet tire is restored to he set point tmperxnre no Tis r namemnt beat oss oe tondby coline is addresed j1041 As Merol' tnirmed above> ti fow even t chaoteried by the waihdi'ran! of hot water iom 11e tank More 1 paticu<tx' a tow een tor tmperanare no rpurooses is elasrideetid by theindra wiUhotwater tn suih a mtnehat the rate of change otfoemperaiure sernsed in thin ank exceeds a ioweve nt detention thrshl d te if he sensed temppeature dops below he set paint I rper tutre, thle coionarchecks for a flowevment Upta deeeflon of a o o in, the sensed itemperat re is compared to a non event thsreshold iemeinn're whiche less (hart the set point tempetgame tand il the seSe iemperattrg becomnesfess tt th tin tod temperatures. he red yseriened d 10t~c oenre the temspe waren hie sot laiti temperature. Tho flow eent theshold tempaaIilre is sdreded to. be duendy #nstothe sat paintg nabe estttem pepyrsadt hfa nt t 5 as to minmenh tu013neISaOIrUed0 ton'a waer etpertttent the mt to be restored to the et point kenptu~ri re in the flutstaie 'embodiment.I th nw event threshold is set at on. derse ess thdan thed so pit tempermioe. t .. 'P F {Th42] 'I his example. opetradtontn the eecric mode issamiarto thehbrid mo dea fit primary dli r're henne that rde lower eteartc esting iiemen~lt tO etnerg red iead of he "soled systero eitf het to th owr portion of. the tank i WA PON usedkc A430dtie ssocied -diffen ce k x th cold tank redd tepe m fo' the eetre mode is sleeted hee Too whi'h 14slighu agher th iA the Osid cudktn rskieege theree hold Seemperatrn ""WeIeN I s~~\ olises coud ng in both 0301des hokWCVer It 'eepin 5ith 'hnt ltes03tOtfS th0oi mode to prendee imnprcved en rgy ef6iNencyv lx' d a tnonris on det us 4 '4f the eate nyem xxsh 0nly hurmtd 1 01the wete de nt, N to mk wea threholi rao en that modt esss iess use ox sba ' e sosn ics dtol d Sti gtU ' mprtsingro recoaer 0me? 0431 (?sdens~nann ca i idd xas ugple to demtstiatedhe feetnc nl up0on dieec~, of a water temtfperai 51 ed tten "th eteeine ttade cold tan threshold tmp>eramre af $257 h' he ccotrollet cniexo the ppe electric heatingft'nemi 122 in ordlcr to heat the top postte I ~Nedate ''s o ter sgcage tank 20 unti the was tecuperatar meaches a seme s bud V Iba hshod temipertiatx ise loes oihal te user seA pOit5 tmpe'raurge. close~' ~ e ag t > rd onsh.oe electric heatrn semet to hecome the energy saurce to hett the tuer t' i5 lheower ponie 1 EA2 01t tnk ando to orplete the recoxet's of he wteaemperaiute in the tank toeh set ponit 'mperndura wthin a reasonable fimn in the illustrative nbosdimeant this in1 1y a jutasn the iwvhnd mode. The controler 1hz. optralh toonidnue to anep-z the upper he'aong demsent rund rectog data representative of tenmpeta rgs ato a bove ita second fiteshoid ltmperamrm' ait wh ch time the anootr I 2 cresses theapp.e' ele-triceatng esenena ta be cewnewuad, /s in the hy a mde she csm- in the lower p Krnon ot the weer songe tank 10 coatnues;o be coal,0 so h cotfsoiler I a>ergnes the 0 Q 'r lean g eaut b.4 ddibeat into the a' et i the lower pr lin of the water storage inn ii Si the sensor .1 lligrads aent Arscanus data .sepresemral o f at; os 'ss01 threshold tC;rnperatrr wich sri the eeuc n-adlegrat i ithe set poird tesperartur Uponm the controller i 2 eeldienad ptosz 'sag daita p esszsiveE a tesuporale e ral to ox greate r than the overshoot thresholtd temperamre.the consroker 1 2tismitss a scre to dae'enei e Vater hn~-ne edement 124 and thse~b's disconeuc ttatsmiss on' of hetn to dhe wt-saste 0loer portion of he water stosage tank 12 In the deie ntat3d e aersho>oVhresh ft 5mpe)ranure is used ra ther than she stgoint tempeon sn me nt scunn'los die tu a nations obte tower heatirg eeen g it tdhe 20W temp 'asie 0sor t haseen epeii deexmial hN When heatingte ate n ei tart usingthe Ma'r elementro Wh bWeaends to Dow riwin toward the tati ide waindi hthe powd along t wa. SWintoh d remprture sensri located ou .n upper prdAon of the taI iutl repA da do the tUnmute 0Lhewat r near the ni which Yas rip faartin he watern de center of the o x? he yenhk emperare 5 aet af a temeOate hiee than the et pOint iemperaa to alixthe mates i ne 'ener of rhs rank tcs reach the s pini ntempeture. Irthe Housitv exampledxme Anahot msh idprawu', iastti3 J1)I144j oi eth the elmespcw nde cxcuempiv.n lowe fatnios e n the coian acdhionhat is haong hou"mn the donlp rae seOsed by de sensor M the ekects mde" reemmy erhesheid riempiaturo of 1" I n the absence ci ai ow evtne tower henn em to remain dey-nergied as l'ang the loewn"emure in de tank rm0 m bown a thrd hshdthresiold tP0mperaure selected 0, he Suflcsenhm lose tee s ptpemtm o eaitadaan accepruile temspe o-rre in the tanrl a t x.ysen g\ g due. to et loss tkrough The tank av Win in the tlusande embodiment isToeia Am the a sned we tepapture drops below fT-5 theower ea sing toem is eeroed ini then Id TpM '"reis restored the oeshoot thresidd te nse I F As ohs b hVd mode spen dereon of a ew ve~ven the sense~d tempeduren is comparedo aa w e t threshod temuperatuire whih is es than th' set pont iernxirature; and if thvsJ& zempe le becoms ics than ths vhratol terieratu. the how esbti cn eenrt is enerrized to res0Ithr e sen sd tempenodure Ntolihei oerd o hshoid raimperainrc eflstW eterr d ld tetilpaNztids s. 'ted "0 ie ANdnly 015 the set noot to Crienle e sp eiss s prompntt AspOnde t 1 1e \ b at soi as to an-raethe neO reqidred 0 reCC"\( Roh'le awi aoetto dtih ilktr 1 0 e imbSdVett~t the flo e>ensbresdi 'is set it 1 A Ieit th e calatte selected eI pr rimpeattue 4OO45) lIthe mode of opneon is heat pump. the trpper sensor I 2 senvsshe temperature ot te witer ath rian ter storuage [tank edt ad transmsits data represanoatised of e Mier e'mpmiutm to thme cotr oder 152. The catroler 1 2 peceases the ata (rr;esntanve ot the termpaatan'e cof the writr within the ater stiftigO ruk Ito and d:etrnnrhtt ilj5 heAs the Sei pntt 'lThe cO$)t'rit 15 ifn'rgd/s the tempr.~es< 1 di i ing hot reihgeoa through the condenser ($ AtuInd 'aot svree tk 1 l un i ue srnwor 12 C W"ads and tamthss data ft"W e seWOU M L tn p in fi 02peratre hasThg n ted (50eeded to it ci toder t2. tepn the cndlie~r reeotng ai nd pro c5 daageresenmatie of noto teinspeture heing been reched <r 'cxceedt t coitufr 1 2inmrsixaIs a signat a t . energaze she comjprssor 130 and thCrgby thseonuiimeIr fSnesskiS)of heattot N x waar in water tor"a tar ' W hro 50 000 nesi osrei response to io'prn wt ladwaI of hct wa'der tnhe tank in ernhccmienspigings a Powrne'x the aewMn now rate Nthe wxater exing. o omin shi war heater 4 rirecdt mieasured nd if ; exceeds a prewremnedo Orehod rat. a fow vent is cgned and she oentec respond aoig.y A raehodte on the Order @f Mnaua ietlitn in aId povixde sadactory residtis'tn' 'aO g'aluii k f x irneim s n10 t gippeds oh 'i fly etsvg sne e1 made of vwi. temp'rturda tend1irechx detet te mcurrence of a ow event Furc C 'kntres att ramp e of data rcpre'sentrtn\e of simpernture teadngs as a Kneon of Qo Sr a '0 'a1?ao water heterin whoh the wer ba3 been heated vs opp'iatWoLt 12 N a measu-'ed btipper senso *d6 Qe 10 *tstes temer*r <ang melAsuird by an slpper sensor c<Whe. appier hearing elemnn owr heatinge ei' Iand compvespr I0 are de-enged anna wao-nni; te ig dr~awn As na ( ;Ph-strat t teperd <4 -aitei beinga ane aos at a rate od ine tians charactoas of O-.ndby he w o is tn shrouh the inssitkr ;v 5nos W~er ;5ern'ge On\ -a I W. N .C c-- 51he teimperature readmg-' 600t doartes inn reprentati e 0- temper~naure anm\ nensed brupper sensor 26 a: hnt wAXN is oe wilhr ntmthe tank a a rate ci gallon per aYno ani d he t yming 'et ib - temper~stuen data as a i aer R4ein 'd ian hm the uAnk m at e s Aan a- W ns pir Atra aofw ,e inuse has been actted as t. th rehtd of reference raie frdetection a1w wvent Ine ; n-gure' represents thsho(low e va rate if contrater 152 deseaua drop nigmature eried basen1.i n t 0Cae reteran tnPs Aowy event rehriecera0t OS Of con then Uo cOnoas 152 O9S9- d OOw ator has rigsaired i this exampls. ree t n m z psteg of data rgpreentlverednss histrated by M6by;i hevotrde 52 ala- Kt h controir 152 to doeine ta the sensed rne of hange greater than the ihreshold or cont imirat aie o chane thingat a fwCeVeflt occarei Te USe of uthu mhosd rate in the iustair'e emsbodiment enale1 he0 control n elehably espond todiIew rates on the order of 3 gaions per mnute or highr as low events f is Me he understood however thatthis Wreshold rame may be. set at nov td m httflhinatis dletaetio n of te eing withA wn om the wama tankand is noo loted to de cn of J { a cA&ap'ramprme 4 a rate uantr than itusirati dye t h cbo rate ol' P a tirte. 1n tg itrcirne enrboditoent the cont olta ook for a drop Ofi QP V atei st O miht .0o0 n S windows eheckntt rw tw second\; to detec a fig mo i a drop "reamer dhan O E e ' sdetecip omin a . morn oc wdothetubvsC'm recr"'u ai yew . enaned rspoxrrdis z sdooring la L ei" n with th 0 ,kmpoo of ti'PAYe gs r ot dorectig dowe evset W houl ed h io hat dip ueo k \ commiaT a agde Wi taes indsan~n uniphon ae ilncede ilen m upe enhe .w tien. ri ich may hae diamPeter n thederf Ui2. inMhes. W i eolk watr enter the tank rAa the dip a a smal portion ohe emering water heds throughis anti siphon apert o a ihe upper regon of the An M a4k1in di as IN comennadscr yx mai-tre residenl, at heates such asdiosecomamerdaly availableI trader the($ band ae srtcmre Prgniate Wehcot end of the dip tube to intoduce mrrbtsernce' it e ertrrrsg witer wthai ptesat anow estitdtort This flow restoddn rncrease; rand riessre in 'he tribe which InmaseSt the .5504 hfleedm r hthro e an"rphon apttoy inu r nt a gt in i; te istrath e tOmodie, the. antigmnho aeom 1rin Fig 0 0 at roughly the satnheght a he fas rthe ater< -empcraurc sensor 16 ( sin pp Th1 f eedncirn of told atei m t nk thnigh denaspn apertoti mnpoant to the effe e es -- oes of thes Upper t enperate sensorin N d vetingo: a nlo t fsactota fsu t achiered-in the ilutrrati xe em bodiment vithdhe comrcia-rHy available dip rube ant siphIon aperravreand outetInthudence strutueana mpl"ed in -n-ceie esidentia -ter heat-rs comremerdall . 'ahtble onder tihe mE brand.i Howeve -<ir e resraniOy of detection ar he adjashed hy aditttmnerts to the apertue sie artior the amnotns of hW es'pnvdnfweda ri a; e un o th dip woe fr <pd mancn for atiia bae4d vo nWr' water hetets LCms that dukOan ppe nsor toward de top f thevt tanktdI a ower sensor ow ard he bottn of theo ' Aer tk Ie upper sensor eteen dises itn the tem erttuse (te vner, thde puppet jorin of ie waterStpr tew a and cames an upper he to t e utmed tnmd the tnpper Ne"' n se~'1s dat he temp ereure in n the ni dh" top~ poe c'n bh tants heated to a definod set s t p inemeratrae The kower seno t r" these systems detects caxttges 31 $6e tktWiIICUre't OPeater tt thgfe Qw..t p 9 dhe int' axnd cau's the lower hea '" ta to be nined onati the cmte sentto1 sensms tha he tempe't'ture in the wat ecore 1h to the defied so pOT tempeture. onr f the &Ie'm in . thtp of the took to Ihe. as a ~<asu oc nactu hiau poir i syee 4w'th Lie cold mate h ae hit hei c nro a~ sfe msieragu t 1snggy' kis atidded to 'the user because the w ~ k e gain rixn ts emod 'sn each'Ime as resth pf 0 e dencted tempera lte chrtr" As a rereh beat rises to the top of the ZiIi stage tm a causing the wate in lhe t op tf th KO wer OtaOetank on Wi firem:d tho th set uempro ae , c rie it thead t ernrg s add hd hen a tmer of'te isml fo (evne ur1V sequnthu the ddims enery adtded to 'di' watet rt te$ to n thir 't ihi Lu ist|Grage \il- s"$-tns t dk up and case oNwneang the wale The o us 'f Ca eg sensor trla t meanle thi aspec t :t(Ijiht'St prse inei a&oU hIteatsrtup Waitit' heaters, tht incHde a de idmadeit mdl te apprec i td- s etapeet of te invee'-n 'noam ied tM stuch em fimn lt andt could b-e danigns empiitsied tor example in Wa&. emr heated onrlx t 'eetric hestnig etme jj It49 "tering "owie HG. NM HQ. l depicts a aron-I Hlod itar cons tentw~ wth' embimn ot the nfwe mtoa 'te control blocs diagram indicates some'Iroinstt'trits. ands aitpttshat oiga ha reunited dutrnipnin the hea 5 tiupji te heati fo eape, die nti~s nma i t einpsfrmoeo lletnpeaueSed'EOsFor9301 c Oan t (I"~a itipdimetrt ne a;e reprtesetied erte as the temtperatecnscr '0 li te duts'tsto embto'rnments; te temegtu jnst 5r thlCmngitXS. hC"nQ\er, ottner types of 1e}Xraitsr sea couM be sWihi4 empeOYed O0he nputsa a idude feedback 70 loan the fns 704 indilcakg of farspeced. K A'opt Omy be 3odCed 0(4om(V a fknawtnsrr 714 00a usch 74 Mnd a condAt&ty nowr n his, tina 7> eodd be used to men tar hot wales uage. FIa 'xslihk mafhe usedto anftorite aumu ton of condendifln ftc the eiaorer and to caus a rump or oder da e io be a anvated to ruemoe he candenmno3 or top txide a Stdg o a t user that condnsa needs to be remYovedt Con'dueahy sensor 7t06 may be use for mtonlnat C(O(denstU acurtialt it ent 0f a Heat cdCe.Of11 Ira be- psdt detes atenat Pe base W odie waterheater indica noeptial leak in the waer sa erage taok Ac inputs mat further cono sehinpu ts o a u:ser nnteta 7t cock andor calndar 73 t one eo mien th mendok iw porAvd b 1 nonda Htie memorya;u terv:capa COO ftk teerder t3me na m-ofadax dock such that if pia'ere k't a psm does not l reet he due;ae (as;equired a marn hot Ieho apptmances with dler This a aisi be awomdlshed by more erigarmthod of readirg m t atomi dOc Satenle outm etc Inputs nay haso be reived Pom a energy mgmvrmng mtng coke 773 Enex Snonero ' Aing der ns omprise dlevices itaw ed by a ei p comao ued n iU m he ower daw during pe k lemnand Oin lk or eple. during s nmmer mcontms mt common (hr powser C(Yt5m3h a prod contsumerg 55ith rebateamfor tn pdyege of' alionde heaser C01YanytP o V Nut dnort deoke' iN aLh dress harge Atndatts mf pger mel as water hears ea pump1 l ganda '01 coudee to sys:kim 10 4 he proesang may b done br aaa U PC It may rs a matrcroomdetr a'PLC con ftro7th0 it The mam PCB nay lo regdatea power mupiply: 1. for ts am Ac roe ~mai B 70( includes a water tempierdture ' ndhlat nirodtule 31ha processes datn rpremti ii e temp it~~lOenoe mea~sredn egplurlst oftvetmisto. ouputs fr th4 coKW a ' svMm 0a *j ede prnd aW pol fits A4 power to t crlmpresmr 'r Uppe heating eleopent . ando 0oe hWoo; 7m 8 T onti Wain)n a54,05n to a dtinA lm nf LCDnamiat t n oea 708 (not shown> The.indicadn's ' ma be i the lorotan (CD dhsphy and on LED) gshrstanic' ed by refercmee num3erzd '~ic rspeCti j00$1] tigtue 21B is mrepesemetsc vuing degam fixrthe 3ian embodiment R& Tig L Te v e a ginp f r the heat pump water rean@ a T be Mandad roe dennai power Fr C$ngbt he ponr .p a be a92 mU iermat>g eartent P;A t Wn leoanw aof C i ae ndly oorn . k ' 'os: Gwo a 20 VAC apu a0 d on e 'ro dT tt ; na tor i TV re A S Od Mde Power appIy 224 'savr d in the to i o a anventional rectioenao ci r'un'; pMsde a 12 ol c* poW( suppiv forink i hfwas04 and farhe desa d rs and Wn lcnonic contrller needs Sstem ipsation isctnimoed b4 a main tonO -er 13i2 maanvi v cotao~es 52 receives inpms such as the input noyn \"nser I 'o h 'adds hmaim "onidraek "'reaene a iedback inpus i and coanrew coens'r of the has 4as Iiated hy refreace numeral SM4 nO'd 1 t1't' he ivus'iv smhodron t ans h4 roe zaria0 spied d faod ww Wt fn kud e siih e mpled. Opeana af te fansP4 intlade an Ld g ad tnna!ug fan speed. and providig p owe re trmn 104 lo operamou by Vy of '<Ie wah okindated pUlSes I gsvd geneoi I . In one embtdhnet. inr speed li imntored v$ Qtachote feedbact buldow e 'an he Wonauied iIi the pr'sent emimenriVt ik be of a a ntdfct s en' gor du'a <gntr We tI t2a rot" I igtl O. se" a ehaied e sensor W Ania' in us nahlU M i 1 K Ieqeno Sa the pvses genruaed no an)xed ha used to tat he srtanna speed tht fan, Nomwhhsnandictih spendti ehod of'~ aruting a' s'ipeeuan dne above kdesried cnbdaimenr. is cointplmed ha' an speedk Pog bemtfl eed~C i pluralty many dlerent oays. The man cotrolbr 2 may' to 'ba condgnured ia vecogni it Lim nimi'dO Soth 5s butin 2t motormeOKeS R 4 K 'epentuflres "naOiaMadequae fan speed at u he aboe dc'rinted nachotmerer ied "acu ier sd n esu onhefinmma" he cotta red wth the Spved fbNn F\at ex' ii -U SaO. gi u ogeen in wauld hre 'aectedu the tahan wer teedha1kS halid~i ](' ' art apipox ie ?4 of" meax st -M Mso a.~ sugd is tvrautted to 1he fa I Is.taC r operation at rtaseed, ad there is n l&edban .nea-mtg tan r'ltbon S tna be niterpreted as a ta tnnkw II6521 The ta covmmrtlir 2 also includes a raeday . tfot vto'rlng<ue uppser heating elenitent 2,. a 2el 1AIL lr controaina' te lows x neiraanamnt 124 anid a relas'21.10 ter oiltdtihe Compressot 13'0.elavs 22 -- 216are tascaded such At that anN one of she heat soaves < enegsiwed a ar onge ne The cascaded retes are cotped to wersppiy lie [A aghen tatss and2 of therii cutout ch AM -- nJJ Perm'n 'g e~ in n v? loti n n Sm elati sjxiverdrgk cope *\for po rpplyline LiIhtmugshcontacts 3and 4 ci swtch 218 Sotch 2 is at con cention theal t du t swich whih is mounted to te vail of nkR I32 to hertspist c i te temperatnureo the tankwvall tfesh k waKit overea to a:iterpeirt ;n 'ees' of the 'gi threshorii etaipedit, 4 \ b Ni1 MA 1%stnaie embodime slh 1 J Wh swCh element couphag CanltadI a conac ) opem beaking; the coinnemon v oll and the swile elemnent enunhing namets 3 nd 4 opens hreakaz the contnar eo i2 therebv hvmze ythe tepand u tiank Rela 22N conpes cntart 5 rout a swten 218 to12,n provide a doue hwak beivee the AC power supply a she po ceno dnt ly srut vghan thesxsetie n t1w otstate CeoxsrIes 2 sitche\idas p in ccupie .2 to comaci 4 ofit' s sh 2.S when he isysn is an and crs 224 - rni owa ne sReferASg aan to lie cascaded alangemNers of An 1iems e e of ;: n 2 is conneed aimnoeed2 ot sanch I Is TT nmi npen torinact i connected to upper h -ens elueet D2 and as Ionr' ~ y closed contit s cme tied tepenfaa ofreay 24 hnorimly n contact of ay 24 is connected to lower hating elmei"2 anus naac closed contact is connecd to. ninal e of SCv 2M The rnmV y open .n5acto1itay 21o is ngerd to nktesst broa Mie T dhag prssur u rl I sa;h 2! an 'i von i a onat assurear Weth andpAd1 eAr isenennd 'i er t on p Otec' ie soaled system iron exceosw c pressum~n ix Ihks anangem n~ 50 energie upe demet 322. cirtio "'s 1 t elni -da 2 s Sum ay" p'r stamW thereby conntett ithatrog demenl V2'2 acos andL When coens212 isin this state L can 'its b' 'monne'id I" heangr deroen M2 To ergidu. ower hetting met24 comrir er72 Owi t cscrda 2 2 ~to i s rmvb dld state nedl a 214 is its nendadi apa-' 'at ni. nriis a ertame.n e'eraat2A a O-' s tadli? Wen mAay 212 is n is notnd -s Ied- state and reax S is. Vts nrmaln onen stt .1 can only he cenct&.n 1m dok estie 124v Tone uto inreietrSsor 1301 conto~~eA 11h sw!he das2 n 1 o no",ydoe saesa S'theS Iag lv "' ' As ne-~lfli O state.is cnnet lsrmsre yaikse z22 and QsmpasO1C'l l-t 5 us eues across Li an i 2i L. manrtomroll"r 1"2 j~e necepts Awnps hot a user BIq $ 2Ln2 Lin dWed by fence un'mertd 23A The an "Ontroler 152 alsna inchade an inndalner iam is ntgured as paof t hekaa pumphI wgaer heaar eeonnc roedrol provaght a user with the obny o corpt andt prea h lain acUJVA of Pe ea ppump waiter healtern such that energk nmay be eMseNed wheon thes no ptd e" nero be Aned {RE3 in the cireld configuraderV he ebdiment ilhusrated n Fig. 7I duin cpeintion MEha h upn \aier eatcr S Owl one tof hasrc ess bennehseents 12 and t and oppressorr C y md M ri per at a cven qA. ins liis the e aoad i-nd lA N er i i coatenlaad lth o aitenne at aous. that Qand of hada h emmeT 122 orf24 and MW the e-da r 1 ato Onat ae siadanoin itnyeo A is contMlaed b n a ematrse COrde a-nd both heating emsa- 22 en 24 an uthe "Wrtsyprar i ' nay pet.A ia manis e s l owee pn on of bth hang '-encs 2 and c at ike same nne may reqwre spedal eteid conisideaAor je p a rger curedn baker.: dodicated en a si e t acconmsodte an O ~ - inrese 4 get ON Natwithsandinto ais enctempaed that operaition of bolh heating etentents i22 nd -- 4 may occur tit toe same time Shouir ta ery -Wth1 aatinn 'sen-or and ohei inputscan be enpayd ,oh en -odmaat o C t S4j Fut ga S ts an -sraion of1) 0 bhe A) 5 ow whin the w atser tenlperats and fktw 0)00dai t it the control din 117 OperaAO d imePH As ssu 4tsdk foicneca det Wa'tm WenOg 0tefegned 7%2 t dettteitiOn mad to whether the wter stoag tank 141 J4) Thanettod dfdetemsu'ingw~heiher the Wate A 5 ge50 a 1) s nd ped~' ~ Ormed - Ite coritrolter &htiigg a parathe- steps Fissi te condener Whi0 i oaot 'i-h the exerior ofhe do e w l 'at ge tAtk is ruaaed for a med eid o 1n' and heat ih extoerr nvy of thl wter s e iantIf tetP s empt hn Wter st oe i b nVu a ta0m ong Soa toM,-e than who-n ther- i s ain tdie tat T he coun3JO fdias tis Boionitany of the lemprAitre of the eterlor was by 3aye- -P0Sens5r poseeonedA su in a mt to theass stamag 4innewatndt'~ heIysttnue ehbodti}P senseri tnaco ntr this purpJOSO.howsnsj a lfseprttsMpeW e lo seman d b't e ssjahl enik ed 4O the tnk ai or at teasthatorva a anf aceprtahle leel theante rns n termpenrata4e soa not exceed a deitd' hnii ithte temnpenture meted i w he sensor ise> ao-e this Andt Ap. in a adano thm the water 1orage tA a ept dre watee hnv wh eak "a bai a deed mee WThe water stage tank isnot full he baner PN u and <no modile WOsin te Q tIo lag fiutwes Pie ixuten tofi toa dp strlav aZ n hu a ans nor yot dp 79 h1 sist1m ends far er oerahra il an o led sufmucuentl to omnst W&e lak ao Amt Upn loon Yhe water stuae lank bemu ing ed wth water. ue querx as to whether the waaer storagPe tnk i foil74will rotu in an atfiraav aswat Nex 'the syvstem detrmsues ai lppmpdaitte mode of operation. 'The iiuszrative emboduimtents have foun'rmodes of opersti ona srsadeewitriode a 'a pormp mode a hybr in de ain'ds" a igh demuand todeced "'Caiitr~t f o dmbihtitoninus of thd i ecural elenietms and the heat pamrp. The sys'temt alk far hose eoft he mnodPet 4opeMnsn pmrevourl n inc 78 01r anS {,pertOr~ mt eu' a mnade ot (apeuttis 802it Daug (T~ ope tI ix wate ne'peianre and Dow odle in mus fr erf the rie i apxratiwn ucleedd by in mperatcor Asriaof th a irifcation processed heetoit ler's' quseswhter die trdue of opternli d thwstndad dlectrcmodto at "t0 U i he modi' rdoperatdon us noQLt1 andaettone.d shecondoaler nextguencres wihetherdhe nrode of OpCaitenX Sdie haw pump mode at M% if she nmde of ipaon s nor hea t Kit peup modA. the einitmtar ies' on ris ohier in mo&e of oermtion ist; th igh Pden'and mode at &I nos ah igh dand moe in deaulti he water lomperausre andfw mai tWII5CsS fOI Wgteiu'itof shy heMP otdo 01O08 {y 55I Whet te eled made af oeradn us stsdad eletic mod die CntrOher imp'ast he stand elelt mode ;I i 4 Up his mi Pode te tempcrtue md wfer Ma1 todue Ots wat t[je'5pKminre PutyU Am hom tIs jam (8n Th in aer tore and Wha nowmoduleis cadured t 104h) uit for ia coit tn cotsndi ti sitfed by ad~u of T' idictur a u ter sernruemmue'whico is s than deedictn ade "l - apd-hrel tempe ug VW 5.E (81] w)herea 1' the spao t I Tirt-sr An T Jhn Pie upper hoendoi eQenrer It is erned he an ko n udn is atd 1n t mm it hi tin V he anread enei~zd t-ho. cod tnk l- cold i 14 midtere sold( inCC ie Mmleis cngred 4 gise parit to Ithe cod t'a condt r n 'd in the msstrative Wmsorttt th olectne elements iano moh nr ed a the samte trt. if she lower endi already ereied to an -o saatruh ensduion we a coldI t' iuditin i det'ct~ed it is' ew sag desele thesn 1 n se mem 124 Hesw elmem 1722M inye to bve n n end T1n2 res to ulinM A, I of lhe setpmi (818. When~ T exceud' FIe 4per eamerntlia. is dei;' gd 18Th ad ib woes eman 124 isergis 'd 822 This operatn conU~dil VI Cnicont unti 12 axcees the nVONY1 tNreAsod of V r above se ga ha T2 a greater th an T? F or uosess sn a i gjed deIgic nthe geld imns euo at ohicime steilower heatag; rtneis denegizd and the mvanIC COtiLSerto 2 noAnr F IIS6j Rewmina agnat84. f A t aun S if7 Sthe te prague to X2ttsif and water flow niodule eke next . totemee heast iso fea;N du anb eo e the u owe heating- eient 121 ene"ized annn IC ene . gised und h' oveM6haes t'ch denpi Sere sO' F' ~>i.sis ahed822 oua cdd tnk ondi(snn deted isit :IW ROW, min ton; thi sKsa d erae l 51 A f 2Was a I'h Te mperte and waKe fltw modue decks ne determine f 'eON is needed d i a flouetent 1w tstcongratag the'med temope aturtC3 2 to> 1he e tpeate10 I (26 I' 2 s nut O85 ina si1o en'rrttann sOheet sndred is sneded nsd due system('511o 05inues 0 -meno T(il 15l k nIan It'l the module niess ooks f}r thse occurrencee 'o > i (kpn8'0t) A hereinbelore desconed I1N eetined so some ~ ~ M amodmetso de ~ o yKan 0a nn m A Uan in oter Koo uampernd rate ofl change*m data Ko dhw event s cdtxeded he mosltis cnnoes t Xmomhflo( I 8.2) 0 I> dox m ds detected Sh moddeN deemnes is s da ''t the set poni min I deree F (830y if oK " nef odto tle ndehts to monitor" T2 Pt 5) ii T2 i' L ess Te s then the loeer ement s enzed und r nn cinerg~zed unil T2 equaL or exceeds the overshoot hresdi out P "' (82 utness tnterrupted by detection of adi etc 0k tosndine 64148 4OtI5S \Ven the ,. ecstd mode of ope nis vs P" hat punmp modi, the u-ndule npnykents the totat pump mooda I33) (Fi? 'It in the nesm puImp mnode 0oy (lhe comp 're'sr dmss' scaled sy'stems' ed~~s> tObt the water

T

he mnosde Is not n w ed to dezestid rn respond C " cod tank cno n Shinh ndes s Ah MOWl moomm T2 (8345 chk rt to deterne WA if hem is sAsnired dNe to stAdh' 30 aen '; b dotexmining If ieM sed a wnmmpautuxe tess than "a Y I d.)< I es ten the out 4d s is energId anremains energed uri the usei seated iT poni tempeoxi &esYIh d K8e8d a U59) Roime to 8 odthe eised tempei ure s notin ta 'Fthe tentperagise and werflo rmmende shed s tixt t detemiif hnealtis eed&du (j40~ a flow event by hai 1comparin fg th sensed temperaine 12tedhe se point temuperamwie 1 840)172i nt eis Aha in U eneryien o heat souces Pt needed anid nde system continues to ma Tf(8 iT2 1 -ss WS Tan Yhe module next looks Lo b Owen~ic' Rind wk a Lat 4'21 11 Q0 on; etra is detected the mduVe coo taneso manait1 1T ( .4oda fle w iends detected theonodulb deamomes it 2 is iss lhan the set poat anaus i ege P 44 ft not the moddle con ues to mnontotfl T2 4 lt2 is les 5 ha i F- then the 2Sdge 5steins guerg/td midO r mans energy ed untilT2 e.s ex\ceedsthe user seated set paint tnsperalnrc 90e Whein the- seeded mode of operaton is the hxhrid mtode, 1hie module ipleeiiSthe hybridi-ode I 4N i5. ED Sf4i this modern themeueanwe 0st iow mode obtins wat Mniratune daTan 0on sensor 26o N4 - u in m sandard ecric made. n thifdmptttendur e d * wa f5me n'r-figrd dwl trst lot a -old tan> condinen 5s;fv edh by :a inde of I> 1ndicanng t e -r teopeiture whoh is less han a cad andk h sid p prature 80 oe n inA ihe iiustana emdoitent shetnt e des-ed ta hW Ohnd 0od tank. thresol teniperatire is 7-< s b-hih is ess than te deci. old ta nk thresthold ter UreltS S 2i s -'ss da. IT F then the upper eating element 2 isenergwzed k-enigg enet P22wil comin- o eneiried vrid Ti 2 ses to -ts 3nT F of these l (854-P When T2 exczds P FW the uper eent 1 i. denergded (lifi nd the nueatin f asheed system is mi-iaed ($1 5 Te seahd system wil connue to nttuntil 1T2 eq'1 a o Ndi Is te Cc gci terieraue. itii5$ tlSa ttegdtW deteceon of anther cod tank condatian)i at hlab time the se-aled syssitem is deaergnend and the ma'dne condnst oior 11 (l8). ]{1I6-q Relunn a. aIhieIt850. ri Tis iot 'as than Tt:3Q F the erpersature arid xiat-r fkv mOEebr ahe~ Ts seii to etarman I- U' e nredi due to suiadbv CC i-tg he deteznzirtiaz if tsenvsad 11(temeseaure is les han T'J F ($B0i i WK 00001 kkalk 113 es. then to opesta of Stsed Stetm s iniated and the s'nko sstem "onnAues o run k rtil the et imnt cnperaoe V is eadmid om exeeden (858) Suss irntupted Kiderna of smother cold tank condion) 'n j h Ah amoe lhe scald s en tv ierg ano the ondlie onotAs 1 OWiT a:_ 040O&2j R oetento V the se0sed e peature is On t hcan T I S the prerattre AaNdaer Vkjw modni t r next o detemi ne Cf heat is reed due to a flev event by Nan co ppadng dhe semnsed tensperamrat 2 ohee poiat 2em re T 8n2) I is not less hnn 1 h noergo ( f heat sources is needed nod the stem connues iomoort2 ) k i s sthan the nade ricA looks the ocrtmreto o ao ye P 164 [ no fow ent is detect the mlii: mo.ames to 014 ton $4 ia flew evenis deactedihp meddaodetermivas f U2 S thanthe sot point mnus degree F (66 I not the module crshdnucs to mottSO T2 (84 z P2 iAn es the7 T F hen the opeion e It:4 <st intiaed and conintues to is ntil 2 pris oresceeds the set poin t enperature O( nes awted by dettieort o0n0otercold 0n cwdoini a K ;hich tme he sealed sem is jd Gnerg% d d Ih m&du Acn tines to mnin 2 I 48 a 00 I Th hni emd mode is ao vMatr M the h ybr w 0 me po ied to respond to high. N typioa v arl hot wie uae oardaa)fcN ast~ cn occurn herboes with high noew shower headi tIerglgew Ides ont the oarde' a e ahns per imnte as tared o b it o nower heads wt Clinte of 2 ualanr per mirmte ig he hih deo mad rtcde I n esi e oet pump eo d e eers' ndi osses ad sumdl na-s ais'i The hybrid mode Uewet-erf a'i large ow even u tis djeren.e tor lowerdlcti cersce-em t to reeov't I1 addiNC It i on rO'n'int 0 hy brdado-e, hut i a iger resedi Use naper he &m ere A is e tA veove he t il. temperatu re" CnO tot- pan of the tan -nithen th I'user c 'een imeid 'o recoe'r the wotem emrpenrae is-b th e t-w-nw nf tadi Asvr' nlyd desod do rwere th sei n rf detect off asl depc an dae of Cunge tempertue on the ordem ofP ever au penzed of orinemn -nng aac one nea' movn LwaIndow. checked every five seconds, T detecd a ame flow esenthe ista m ooks for a cance in tseinrat o A f' an a persn d tdeitnmentes nae a UTeTn e t "Iein Wglw noo checked eS fjy secondshcwter, ey dtn seconds do, Q asf uleA ju(1641 \Ven ch a;eted made of ope n00 Thi en mdode ie Ole lnAemeUs Ah hn den0 d mode 8al) (ng S) 1n this adc the te speOtire amdwh vaxx~c modueC cisteris wkayt tenpiur~ee d~a T2 inesesor i2A (8721 dA in 4 a h tud srrndard gectc modes. tenemperia'r cmd water owmoduleis emnured to cheek Ini am oi ona c d tcta ouwgnied bs'a'utao of T2 indicating a wat te dare wich isas tha ad k ank t 'heSld 0500prano (7K4 no e WArn t he unqratie enhodimoent s rnaN efe descbedbh h t n i cum I t shi TE opeae F h4" ,owenter thesi the tectid sr 1yb coid aaknk. *reshold tmpeY{r as Thij s to 5 s enal ascher rLony toa taan on ck Nw n tso higt U"dtmed 1a Incr ddlotiintions whee dd taY cddn on sno TO2 hner reueien. i Mv, ieme n duM in the avsen1t hppersa e enrhd he CO e xhnt~etki aik coden detectrizdem 1-ctw 1em -Bu:wltC N StWI '55We 9 S n o xdPin - Fi tehe stpoint (81.W execeeds the F.in per c e ment 122 ldcenerged am> he ler dement enewedI (POY As in th o ekdar ;OeiS OpeursAg condion e counnue C O mt Ocds then overh"ota Wohd4 A5 apok e sa an tht is 12is 2'eatezthan 0) Aomfs ifhogntrtd b deetacn a n-her d tantdeno 5 at die n' o' x en hedtg eement 12 i engized andO the micdtite cannues o' mn I 8 W M ) 1*t}ON Rtning agI to Sw Tinot Iegs tha P the tenperguen; and it r seumodule check' net todtemne if heat is requahed due to siandb n"t ley eti min if the sensed&I ter tmpt~amaren istss than T§' P l9dY If es then she apnm ion < ie sheeatedavictemna intated ad the sea>ed svQrm eont t o nun i she Ot Itott teruperatttti F. 35 -ithed. ' zweended CI6i (oaiss eneteped by d e eon of another cold tank condien or alr soy -nt xc whinh t -ne ened ~ Ntesnt is denengied adthe onede ennnes ' an JtW66] Rkue g 'nI to k Nift et ensed tempe ature is not tss tai '" it temnperatte od water tntomocddoeeks nex55 O detennmie Wfheat s needed due -t 33 a Hay emby rs cpai h s e 12 to the set poit temprzte' T (8884 112 i not.ss than 1. enersaton of heat urces is uneded and the Wxstem cenoms to mnpwKr (84 f f!12 is less WIha 1 the mdtde new Woaks 0or the Ic.Currence Ofa a flw even at ($90% 1n o o event is deteted& the ntoduhe o ities tio mnn'itor 12 (87;2 Ka duW eve is VeOed he untadle deimnwhIesi T! is les tan ne se? poi minp 1 degree (9 thm e nda COIInnu to mo!o 2 A4W I Blot i Tha KT P n ' pistf of "he seaed S'InS nttiated atnd contains to an Sni 12 pals or exted s t s point temperture (8h uusess cmestnped v' by d ±oni int stl ' t SWhOViso Of t'rgw fio ent) no now im the sald t 4em d W wvnmed Ad on medue PA mtRwew is mnitNr n (K48 R0A67 Reuming to 8i at awn otuA g ypermnn n W he hig demnmd mnodet SIlesS the systent is i t h pro2ss of reepende to1a c2 tank Aeninon, dee on f a are low even U anes pior. if a huge Vow es > detecd that i tthe ifcone r deat a drrp ater ta n tempete An edZ h ssor 1*'n of 7 or mre in arunni ten -"nimt WindoW th lower aeing elemnt a energs ed (89% cd remains negmed 'Imdtt O55Z{YdS U OViXrStuet rshonld wf 1' noe the scs piAk ihm is. T2 is greaser thsan Tn P or iless lineup td b deecnons oft athter cob. tnk conitti ni whichin'm' te lower heating emeiszn 124 is deenererzed and m.t ' mo fldinues tno mtor 0s 06 Ti n des tSsaenoses 0 uspites&~' iits deOse the inaendom includingshe hest mode asd also to enables ainy person 4kied ini the art sosmake andI ea the toensonf 'Te patentable scope ote wxboiens defined by she dIans and Itay ISndade 0: hee e< ampes that oea 'a tosh:' skilled to the art Such other example sac intended to Yaw ihn se scope of dnas if ha Como struamn nrats Shaldo not dfher floa she hi-oral tangae of th55 i512ms. 5>tb5 5L h e egsnnist "e1ataienditsatinsis sandierences fnt te lteral angaes 34

Claims (8)

1. A method of heating water within a water storage tank of a heat pump water heater wherein a controller is operatively connected to a heat pump, heating elements and a first temperature sensor positioned near the top of the water storage tank, the method comprising: receiving temperature readings transmitted by the first sensor; processing the temperature readings transmitted by the first sensor in order to determine a drop in temperature of water near the top of the water storage tank below a threshold temperature; and selecting and energizing at least one of the heat pump and the electric heating elements in response to the drop in temperature of water near the top of the water storage tank below the threshold temperature.

2. The method of claim 1 wherein the step of determining a drop in temperature of water near the top of the water storage tank below a threshold temperature comprises comparing the temperature readings transmitted by the first sensor to the threshold temperature.

3. The method of claim 1 or 2 further comprising: energizing a lower beating element when the temperature readings transmitted reflect a drop in temperature below a first preset level; and energizing an upper heating element when the temperature readings transmitted reflect a drop in temperature of a second preset level.

4. The method of any one of claims 1 to 3 further comprising energizing a heat pump system lower heating element when the temperature readings transmitted reflect a drop in temperature below a second preset level.

5. The method of any one of claims 1 to 4 further including the steps of: measuring the flow of water into the water storage tank at a water inlet line; processing data representative of the flow of water into the water storage tank along with data representative of a drop in temperature of water near the top of the water storage tank below a defined set point temperature; determining which of an upper heating element and a lower heating element positioned, within the water storage tank is to be energized; and 35 energizing one of the upper heating element and the lower heating element positioned within the water storage tank.

6. The method of any one of claims 1 to 5 wherein flow through the condenser tubing, which is wrapped around the exterior of the water storage tank side wall and extends from the lower portion to the upper portion of the water storage tank side wall, is initiated at a point on the condenser tubing contacting the lower portion of the water storage tank side wall and flows through the condenser tubing up through the condenser tubing in contact with the upper portion of the water storage tank side wall.

7. The method of any one of claims 1 to 6 wherein the condenser tubing includes a return flow wherein, following flow through the condenser tubing in contact with the side wall of the water storage tank, flow is continued through condenser tubing in contact with the bottom wall of the water storage tank.

8. The method of any one of claims 1 to 7 further including a disable override step that occurs at the beginning of the method of heating, whereby the controller automatically determines whether the water level within the water storage tank is at a sufficient level to allow a heating sequence to begin by performing the following steps: initiating the condenser of the heat pump for a defined period of time; processing the temperature readings received from the sensor positioned to measure the temperature of the water storage tank in order to determine whether the temperature of the water storage tank has increased to a level that exceeds a defined increase level; and upon a determination that the temperature of the water storage tank has exceeded a defined level, disabling the heating sequence and transmitting a signal indicating that an insufficient level of water is within the water storage tank. 36