Bryant 581A manuale d’uso

Cancels : II 58 1A-15 5-2 II 581A- 155-3 6/15/ 99 CONTENTS Pa g e SAFETY CONSIDERA TIONS . . . . . . . . . . . . . . . . . . . . . . 1 INST ALLA TION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 4 I. Step 1 — Pro vide Unit Suppo rt . . . . . . . . . . . . . . 1 II . Step 2 — R i g and Place Unit . . . . . . . . . . . . . . . [...]

—2— NO T E S: 1. Roof c urb accessor y is shipp ed disassembled . 2. Insulated panels: 1 i n. thick ne oprene coate d 1 1 / 2 lb dens ity . 3. Dimen s ions in ( ) are i n millime ters. 4. Directio n of airflow . 5. Roof c urb: 16 g a. (V A03-56) stl . NO T E: T o prevent the hazard of stagn ant water build- up in the dr ain pan of the indoo r s[...]

—3 — IMPORT ANT : Cur b or ada pter roo f cur b must be level . This is neces sary to permit unit dr ain to functi on properly . Unit lev- eling t o lerance is ± 1 / 16 i n. pe r linear f t in any d irecti on. Re f er to Acc es sor y Roof Curb or Ho rizontal S up ply R oof Curb Ins tallati on Instr uctions for add iti onal inf ormati o n as re[...]

—4— 581A180 ONL Y FIELD SUPPLIED POWER EXHAUST/ BAROMETRIC RELIEF (ACCESSORY ONL Y) POWER EXHAUST/ BAROMETRIC RELIEF (ACCESSORY ONL Y) Fig. 4 — Base Un it Dimensi ons; 581 A155 and 180 NOT ES: 1. Refer t o pri nt for roof cur b acc essor y di men sions. 2. Di mension s in ( ) are in mil limeters. 3. Center of Gravity . 4. Directi on of a irfl[...]

—5 — Fig. 5 — Base Un it Dimensi ons; 581 A240 NOT ES: 1. Refer to pr int for roof c urb ac cessor y di mensio ns. 2. Dim ensions i n ( ) are in m illimeter s. 3. Center of G ravity . 4. Directio n of air flow . 5. Duct work t o be attach ed to acces sor y roof cu rb only . 6. Minimum clear ance: • Rear : 7 ft-0 in. (21 34) for coil removal[...]

—6— T able 1 — Physi cal Data LEGEN D *Evapor ator coil fin material/condenser coil fin material . †We i ght of 14-in. r oof curb . **Circui t 1 uses the lower porti on of condens er coil and lower porti on of ev a porator coils , and Circuit 2 uses the upp er por tion of bot h coils. ††Pull ey ha s 6 turns. Due t o belt an d pulle y , [...]

—7 — III. STEP 3 — FIELD F ABRICA TE DU CTWORK On vertica l units , secure all ducts to roo f curb and building struc ture. Do not c onnect duc twor k to uni t. Use flexible duct connec t ors between unit an d d ucts as requi red. Ad equately in sulate a nd weather proof all du ctwo rk loca ted out d oo rs , joi nts , and roof openings wi th [...]

—8— VI. STEP 6 — TRAP CONDENSA TE DRAIN See F ig. 4, 5, and 11 f ore drain location. Plug is provid ed in drai n hole and must be removed when un it is o perating . One 3 / 4 in. half coupl ing is provi ded in sid e unit evap or ator sect ion for co nd ensa te d rain co nnection. An 8 1 / 2 in. x 3 / 4 in. diamet er ni pple a nd a 2 in. x 3 /[...]

—9 — Route p ower an d ground lines thr ough control box end panel or unit basepan (see F ig. 4 and 5) to connec tions as show n on uni t wi ring di agram and Fig. 14. Fi eld wiring must con form to tempera ture limita tions f or ty pe “T” wire . All fie ld w iri ng must comp ly with NEC and local re quirem ents . Trans former no . 1 is wir[...]

—1 0— T abl e 2 — Elect rical Data L EGEND *Fuse or HACR circuit break er. NO TES : 1. In compliance with NEC requirements for multimotor and combi nation load equipment (refe r to NEC Ar ticles 430 an d 440), the o ver current protectiv e dev ice f or the unit shall be fuse o r HAC R breaker . Canadian units ma y be fuse o r circuit break er[...]

—11— Da mp er Ve nt Pos i tio n S etti n g 1. Set fan swi tch at ON posi tion ( continuo us fan opera - tion) and cl ose ni ght switc h if use d. 2. Set syst em selecto r switch at OFF position. 3. Tu rn d a m pe r a dju s t me n t kn ob l o ca t e d o n c ont ro l module cl ockwise slowly until da mpers assume desi r e d ve n t p os it ion . D[...]

—1 2— 3. Secur e lower filter r etain er and long section of filter sup port bracket to uni t. See Fig. 22. L eave s crew s loos e on 180 and 240 units . 4. Slid e baffl e (sizes 180 and 24 0) behind lowe r filt er ret a ine r a n d tig h ten s cr e ws. 5. Loose n sheet m etal s c rews f o r top panel of base unit- locat ed abov e out door -air[...]

—13— B. Differ ential En t halp y Contr ol NO TE: The access ory out door -air entha lpy sens or mus t be in st alle d BEFORE the ec onom iz er hoods ar e install ed on the uni t or hoods wil l have to be r emoved. 1. Rem ov e an d disc a r d the fa cto ry- i nsta ll e d ju mpe r ass embly containi ng the 800-ohm res istor on t he ec o nom i ze[...]

—1 4— Sensor Ass embly — Inst all the sens or as sembly i n the loca- tion s hown in Fig . 26. Motor Mou nt — T o ensure prop er fan height, replace the exi sting m otor mount with th e new moto r mount pr ovided wit h a ccess ory . T r ansf ormer (460-v Un its Onl y) — On 460 vo lt unit s , a trans- form er is requi red. The transform er[...]

—15— NO TE: When co mpress ors are rotati ng in the wrong di rec- tion, the uni t will have increa sed noise levels and will no t provide heat ing and coolin g. Af ter a few m inutes of re verse op era tion, th e s croll compr es- sor internal overload p rote ction wil l open, whic h will acti - vat e the unit’ s l ocko ut and requires a manu[...]

—1 6— T abl e 4 — Fa n P e rform ance — 581A1 55225 ( Low Heat Units with Opti onal I ndoor F an Motor) LEG END *St and ard low -med iu m stat ic dri ve rang e is 83 4 to 1064 r pm. A lter na te hig h-s tati c driv e r ange is 11 61 t o 1426 . Ot her rpms requ ire a f i eld- su pp li ed d ri ve. NO T ES: 1. Maxi mum cont inuo us b hp f or t[...]

—17— T able 5 — Fan P erform ance — 581A1802 70 (Lo w Heat Unit s) LEG END *St and ard low -med iu m stat ic dri ve rang e is 87 3 to 1021 r pm. A lter na te hig h-s tati c driv e r ange is 10 25 t o 1200 . Ot her rpms requ ire a f i eld- su pp li ed d ri ve. NO T ES: 1. Maxi mum co ntin uou s bhp fo r the st an dar d moto r is 6. 13. Th e [...]

—1 8— T able 6 — Fan P erform ance — 581A2402 70 (Lo w Heat Unit s) LEG END *S t andar d low -me dium st atic d riv e range is 1002 to 1 15 1 rpm. A lte r nat e hig h-s tati c driv e r ange is 11 93 t o 1369 . Ot her rpms requ ire a f i eld- su pp li ed d ri ve. NO T ES: 1. Maxi mum c ontin uous bhp f or t he st anda rd mot o r i s 9 .47 (f[...]

—19— T able 7 — Fan P erf orma nce — 581A15 5300 (High Heat Units with Standard In door Fan Motor LEG END *St and ard low -med iu m stat ic dri ve rang e is 83 4 to 1064 r pm. A lter na te hig h-s tati c driv e r ange is 11 61 t o 1426 . Ot her rpms requ ire a f i eld- su pp li ed d ri ve. NO T ES: 1. Maxi mum co ntin uou s bhp fo r the st [...]

—2 0— T able 8 — Fan P erformance — 581A15530 0 (High Heat Units wit h Option al Indoor F an Motor ) LEG EN D *St and ard low -med iu m stat ic dri ve rang e is 83 4 to 1064 r pm. A lter na te hig h-s tati c driv e r ange is 11 61 t o 1426 . Ot her rpms requ ire a f i eld- su pp li ed d ri ve. NO T ES: 1. Maxi mum cont inuo us b hp f or t h[...]

—21— T able 9 — Fan P erf ormanc e — 581A180 360 (High Heat Units) LEGE ND *St and ard low -med iu m stat ic dri ve rang e is 87 3 to 1021 r pm. A lter na te hig h-s tati c driv e r ange is 10 25 t o 1200 . Ot her rpms requ ire a f i eld- su pp li ed d ri ve. NO T ES: 1. Maxi mum co ntin uou s bhp fo r the st an dar d moto r is 6. 13. Th e [...]

—2 2— T able 10 — Fan P erform ance — 581A2403 60 (High Heat Unit s) LEG END *S t andar d low -me dium st atic d riv e range is 1002 to 1 15 1 rpm. A lte r nat e hig h-s tati c driv e r ange is 11 93 t o 1369 . Ot her rpms requ ire a f i eld- su pp li ed d ri ve. NO T ES: 1. Maxi mum c ontin uous bhp f or t he st anda rd mot o r i s 9 .47 ([...]

—23— T able 11 — Air Quant ity Limits T able 12 — Evapor ator F an Mot or Speci f icatio ns BHP — B rake Hor s epow er T able 1 3 — Accessory / FIOP Ec onomizer St atic Pressur e (in. wg) L EG END NOTES: 1. T h e facto r y- as sem ble d ho r i zo nta l ad ap te r subs t an ti al ly imp roves fan pe rfor ma nc e. S ee Fig. 2 7. 2. The st[...]

—2 4— XIII. GAS HEA T V eri f y ga s pr essu r es b e for e tur ni ng o n h eat a s fol low s: 1. Turn o ff manu al ga s stop . 2. Connect pressu re gage to su pply gas pressure tap (se e Fig . 13). 3. Con nect pr essur e gage t o manif old pre ssure tap on gas valve. 4. Turn on m anual g as stop a nd set thermost at to HEA T pos iti on. Af ter[...]

—25— Upon a s econ d-stag e cal l fo r cooli ng , co m pre ssor n o. 1 i s energize d and mechanic al c ooling is integrated with econo- mizer cooling . If the outd oor -air t emperatu re drops b elow 50 F , a c ooling loc kout swit ch prev ents t he comp ress ors f rom running . When s upply-a ir temper ature d rops b elow a fix ed se t point [...]

—2 6— II. LUBRICA TION A. Compressor s Eac h com pres sor i s cha r ged wi th th e corr ect am ount o f oil at the f actory . Con ventional white oil (Sontex 2 00L T) is used. White oil is c ompatible with 3GS oil , and 3GS oil m ay be used if the a d d ition of oil is requir ed . See co m pres sor n am e - plat e for or iginal oil c harge. A c[...]

—27— 6. Remove jacking bolt and tapped j ack ing bol t p late . 7. Remove the 2 scr ews that secure t he motor moun ting pla te to t he m o to r s up po r t cha n n el. 8. Remove t he 3 screws f rom the end of the motor s up- port chann el that i nterfe re with the m ot or s lid e pat h. 9. Slide out t he mo tor an d mo tor mou nting plate. 10.[...]

—2 8— 4. Tight en sets crews and re place rubbe r hu bcap to pre- vent hub fr om rusting to m otor shaft. 5. Fill hub rec e ss with permagum if rubber hubcap is missing. VII. ECONOMIZER ADJUSTMENT See T ables 16 and 17 for che ckou t and outdoo r air tempera - tu re si m ulati on. M a ke ce rtai n the o utdoor -air damper i s fully clos ed and [...]

—29— X. GAS V AL VE ADJUSTMENT A. Natural Gas The ga s valve ope ns and c loses in re sp ons e to the t hermostat o r li mit contro l. When p ower is s uppli ed to valve te rminals D1 and C2, the main valve op ens to its pr eset po sit ion. The re g ular factory s etting is s tamped on the valve body (3 .3 i n. w g). To a d j u s t r e g u l a [...]

—3 0— C. Condenser - Fan Motor Prot ectio n Each condens er -fan motor is internally pro tected agains t ov er t em pe ra t u re. D . High- and Low-Pressur e Sw itches If ei t h er sw it ch t ri p s, or i f th e c om pr es s o r ove r te m p e ra t ur e switc h activa tes , that refri gerant cir cuit will be automati - c a l l y l o c k e d o u[...]

—31— 581A180360 AND 581A240 360 Fig. 37 — Spark Gap Adjust ment SEE DET AIL "C" SEE DET AIL "C" SEE DET AIL "C" 581A1552 25 581A180270, 581A240270, AND 581A155300[...]

—3 2— LEGEND Fig. 38 — T ypical Wiri ng Sch em ati c and Fig. 39 — T ypical Compon ent Arr angement AHA — Adjustable Heat Antici pato r BKR W/A T — Break s with A mp T u rns BR — Bur ner Relay C— Contactor, Compressor CAP — Capacito r CB — Ci rc ui t Br eak er CC — Cooling Co mpens ator CH — Crankcase Heater CLO — Compres [...]

—33— Fig. 38 — T ypical Wiri ng Sche m ati c (581A1 80, 208/23 0 V Unit Shown) (co nt)[...]

—3 4— ECONOMIZER OPTION/ACCESSORY Fig. 39 — T ypical Component Arr angement (581A18 0 Shown)[...]

—35— TROUBLESHOO TING Refer to T ables 18 and 19 for tr ouble s hooti ng deta ils . T able 1 8 — Cooli ng Servi ce Anal ysis LEG EN D TXV — Thermost atic E xpan sion V alv e PROBLEM CAUSE REMED Y Co mp res sor and c on de nse r fa n wi ll not start. P owe r f a il ure. Cal l pow er co mpan y . Fuse b lo wn o r cir cuit br eak e r trip ped. [...]

—3 6— T able 1 9 — Heati ng Servi ce Anal ysis LEGEN D GR — Gr ou nd PROBLEM CAUSE REMED Y Bu rne rs will not ignite . Mi sa lig ne d sp ar k e l ect ro de s. Ch eck f la me ig ni ti on an d se ns o r el ec tr o de p os it io nin g. A d ju st as ne ed ed . No ga s at ma in b urn ers . Che c k ga s line fo r ai r ; pu rge as n ecessa r y . A[...]

—37— Refer to Fig . 40 for IGC trou bles hoo ting inf ormation. LEG EN D NOT E: Thermo stat Fa n Swit ch in t he “A UT O” po sition . IDM — Ind uce d-Dra ft M otor IGC — Int egr a ted G a s U nit C o ntro ll er Fig. 40 — IGC Contr ol (Heating and Cool ing )[...]

Copyright 199 9 Br yant He atin g & Co oling S ystems CA T ALOG NO. 5358-101 P A CKA GED SER VICE T RA INING P ackag ed Se rv ice Trai ni ng pr ograms are an exc ellen t wa y to increas e your knowle dge of the eq uip - ment discus sed in this manual, inc lud ing: A large s electi on of product, theor y , a nd skil ls pr ograms are available , [...]

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Copyright 199 9 Br yant He atin g & Co oling S ystems CL-1 CA T ALO G NO. 5358-101 CUT AL ONG DOT T ED LI NE CUT ALONG DO T TED LINE ST ART -UP CHECKLIST I. PRE-S T ART -UP VERIFY THA T ALL P ACKI NG MA TER IALS HA VE BEEN REMOVED FROM UNIT VERIFY I NSTALLATION OF INDOOR F AN MOTOR ADJUS TMENT BOL T (155) OR ADJUSTMENT BOL T AND P LATE (180, 2 [...]