Manuel d'utilisation / d'entretien du produit 581J du fabricant Bryant
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581J GAS H EA T/ELECTRIC COO LING P ACKAGED ROOFTOP 3 to 8. 5 NOMINAL T ONS Pr oduct Data TM C10405 the environmentally sound refrigerant C10222 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
2 T ABLE OF CONTENTS P AGE FEA TURE S AND BENE FIT S 3 .................... MODEL NUMB ER NOME NCL A TUR E 4 ............ F AC TOR Y OPTIONS AND/ OR ACC ESSORI ES 6 ..... AHRI COOL ING RA TING T ABL ES 8 ............... HEA T RA T ING T ABL E 9 ......
3 FEA TURES AND BENEFITS S Single - - stage c ooling ca pacit y control on 04 to 07 model s S T wo- - stage cool ing ca pacit y control on 08 a nd 09 m odels S SEER up to 15.
4 MO DEL NUM BER NO MENCL A T URE 123456789 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 5 8 1 J E 0 6 A 0 7 2 A 0 A 0 A A -- ____________ ______ ________ ______ Unit T ype Design Revision 581J = C ooling/Gas .
5 T ABLE 1 – F ACTOR Y - - INST ALLED OPTIO NS AND FIELD- - INST ALLED ACCESSORIES CA TEGO RY ITEM FA C T O R Y INSTALLED OPTION FIELD INSTALLED ACCE S SOR Y Cabin et Thru - - - the - - - base elect.
6 F ACTOR Y OPTIONS AND/OR ACCESS ORI ES Economiz er (dry - -bulb or enthalpy) Economi zers save m oney . The y bring i n fresh, out side air for ventilation; and p rovide cool, outs i de air t o cool your buildin g. This is the pref erred method of lo w- - ambient cooling.
7 F ACTOR Y OPTIONS AND/OR ACCESSORIES (CON’T) Motormaster H ead Press u r e Con troller The Moto rmaster motor co ntroller is a low ambien t, head pressure c ontrolle r kit that i s designe d to maintai n the unit’ s c ondenser hea d pressure during periods of low ambie nt cool ing operat ion.
8 T ABLE 2 – A HRI C OOLIN G RA TIN G T A BLE 1- - ST AGE COOL ING UNI T C OOLING STAGES NOM . CAP ACITY (TONS) NET COOLING CAP ACITY (MBH ) TOT AL POWER (kW) SEER EER IEER 04A 1 3 36.0 2.9 15.00 12.50 N/A 05A 1 4 48.5 3.7 15.60 13.00 N/A 06A 1 5 57.
9 T ABLE 4 – HE A TING RA T ING T ABLE - - NA TURAL GAS & P ROP ANE Unit s Gas H eat AL /S S HE AT E XCH A NGE R TEMP RIS E (DEG F ) THERMAL EFFICI ENCY (%) AFUE (%) INPUT / OU TPUT STAGE 1 (MBH.
10 T ABLE 5 – HEA TING RA TIN G T ABLE - - LOW NO X 1 UNI T GAS HEAT LO W NO x H E A T E X C H A N G E R TEMP RIS E (DEG F ) THERMAL EFFICI ENCY (%) AFUE (%) INPUT / OU TPUT STAGE 1 (MBH) INPUT / OU.
11 T ABLE 7 – MINIM UM - - M AXIM UM AIRFL OW RA TINGS - - NA TURAL GAS & P ROP ANE UNI T HEAT LEVEL COOLING HEATI NG MIN IMUM MAXIMUM MINI MUM MAXIMUM 581J* 04 LO W 900 1500 990 2190 MED 1000 1.
12 T ABLE 8 – PHY SIC AL DA T A (COOLI NG) 3 - - 6 T ONS 581J*04A 581J*05A 581J*06A 581J*07A Refr igera tion System #C i r c u i t s/#C o m p ./T y p e 1/1/S c r o l l 1/1/S c r o l l 1/1/S c r o l l 1/1/S c r o l l Puron r refrig.
13 T ABLE 9 – PH YSI CAL DA T A (HEA TING) 3 - - 6 TONS 581J*04A 581J*05A 581J * 06A 581J*07A Gas Connect ion #o fG a sV a l v e s 1111 Nat. ga s supply line press (in. w .g .)/(PSIG) 4 --- 1 3 / 0 . 1 8 --- 0 . 4 7 4 --- 1 3 / 0 . 1 8 --- 0 . 4 7 4 --- 1 3 / 0 .
14 T ABL E 10 – PHY SIC AL DA T A (C OOLI NG) 7 .5 - - 8.5 T ONS 581J*08D 581J*09D Refr igera tion System #C i r c u i t s/#C o m p ./T y p e 2/2/S c r o l l 2/2/S c r o l l R - - - 410a charg e A/B (lbs - - - oz ) 9 - - - 10 / 9 - - - 10 9 --- 1 9 / 9 --- 1 4 Meterin g de vice TXV TXV High - - - press.
15 T ABLE 1 1 – PH YSI CAL DA T A (HEA TING) 7.5 - - 8.5 TONS 581J*08D 581J*09D Gas Connect ion #o fG a sV a l v e s 1 1 Nat. ga s supply line press (in. w .g .)/(PSIG) 4 --- 1 3 / 0 . 1 8 --- 0 . 4 7 4 --- 1 3 / 0 . 1 8 --- 0 . 4 7 Propa ne supp ly line press (in.
16 CURBS & WEIGHTS DIMENSIONS - - 581J04 - - 06 NOTES: 1. DIMENSIONS ARE IN INCHES, DIMENSIONS IN [ ] ARE IN MILLIMETERS. 2. CENTER OF GRAVITY 3. DIRECTION OF AIR FLOW 44 25 636 [] 18-1/8 459 [] 1.
17 CURBS & WEIGHTS DIMENSIONS - - 581J04 - - 06 (cont.) UNIT STD. UNIT WEIGHT CORNER WEIGHT (A) CORNER WEIGHT (B) CORNER WEIGHT (C) CORNER WEIGHT (D) C.
18 CURBS & WEIGHTS DIMENSIONS - - 581J04 - - 06 (cont.) CONNECTOR PKG. ACCY. BC D ALT DRAIN HOLE GAS POWER CONTROL ACCESSORY POWER CRBTMPWR001A01 1’-9 11 / 16 ” [551] 1 3 / 4 ” [44.5] 1’-4” [406] 3 / 4 ” [19] NPT CRBTMPWR003A01 3 / 4 ” [19] NPT 1 / 2 ” [12.
19 CURBS & WEIGHTS DIMENSIONS - - 581J07 - - 09 581J-07A 581J-08D 581J-09D 581J 581J 581J 36 3/8 36 3/8 (924) (924) C10425 Fig. 5 - - Dime nsi ons 581J07 - - 09 581J.
20 CURBS & WEIGHTS DIMENSIONS - - 581J07 - - 09 (cont.) 581J-07A 581J-09D 581J-08D C10381 Fig. 6 - - Dime nsi ons 581J07 - - 09 C B A D C08337 Fig.
21 CURBS & WEIGHTS DIMENSIONS - - 581J07 - - 09 (cont.) 581J*A07 581J*D08-09 UNIT SIZE ROOFCURB ACCESSORY CRRFCURB003A01 CRRFCURB004A01 1’ - 2” [356] A 2’ - 0” [610] Typical C orner Fastening Device C10424 Fig.
22 OPTIONS & ACCESSO R Y WEIGHTS OPTION / ACCES SORY OPTION / ACCES SORY W EIGHTS 04 05 06 07 08 09 lb kg lb kg lb kg lb kg lb kg lb kg Pow e r E x h a us t - - - v er t i ca l 50 23 50 23 50 23 5.
23 AP PLICA TION DA T A Min operat ing ambien t temp ( cooling) : In mecha nica l cooli ng mode, your Brya nt rooftop unit c an safely opera te down to a n outdoor ambient t empera ture of 35 _ F( - - 2 _ C) and 25 _ F( - - 4 _ C), w ith an acces sory w inter start kit.
24 AP PLICA TION DA T A (cont .) Sizing a r ooftop Bigger isn’t nece ssarily bett er . W hile a n air condi tioner needs to ha ve enough ca pacit y to mee t the de sign l oads, it does n’t need excess cap acity . In fact, exces s capacity typica lly result s in very poor part load performance and humidity co ntrol.
25 SELECTION PROCEDURE (W ITH 581J*07A EXAMPLE) 1 I. D etermine coolin g and h eating lo ads. Given: Mixed air dry bul b 80 _ F( 2 7 _ C) Mixed air wet bul b 67 _ F( 1 9 _ C) Ambient dry bul b 95 _ F( 3 5 _ C) TC Load 73. 6 MBH SHC Loa d 53.3 MBH V erti cal supply a ir 2100 CF M Heati ng load 85.
26 T ABLE 12 – CO OLING CAP ACITIES 1- - ST AGE COO LING 3 TONS 581J* 04A AMBIEN T TEMPERA TURE 85 95 105 115 125 EA (dB) EA (dB) EA (dB) EA (dB) EA (dB) 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 900 Cfm EA (wb) 58 TC 32.1 32.1 36.3 30.8 30.8 34.
27 T ABLE 13 – CO OLING CAP ACITIES 1- - ST AGE COO LING 4 TONS 581J*05A AMBIEN T TEMPERA TURE 85 95 105 115 125 EA (dB) EA (dB) EA (dB) EA (dB) EA (dB) 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 1200 Cfm EA (wb) 58 TC 43.2 43.2 49.1 41.5 41.5 47.
28 T ABLE 14 – CO OLING CAP ACITIES 1- - ST AGE COO LING 5 TONS 581J*06A AMBIEN T TEMPERA TURE 85 95 105 115 125 EA (dB) EA (dB) EA (dB) EA (dB) EA (dB) 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 1500 Cfm EA (wb) 58 TC 53.4 53.4 60.6 51.3 51.3 58.
29 T ABLE 15 – CO OLING CAP ACITIES 1- - ST AGE COO LING 6 TONS 581J*07A AMBIEN T TEMPERA TURE 85 95 105 115 125 EA (dB) EA (dB) EA (dB) EA (dB) EA (dB) 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 1800 Cfm EA (wb) 58 THC 64.1 64.1 72.5 61.8 61.8 69.
30 T ABLE 16 – CO OLING CAP ACITIES 2- - ST AGE COO LING 7. 5 TONS 581J*08D AMBI ENT TEMPER AT URE 85 95 105 115 125 EA (dB) EA (dB) EA (dB) EA (dB) EA (dB) 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 2250 Cfm EA (wb) 58 THC 81 81 91.8 77.9 77. 9 88.
31 T ABLE 17 – CO OLING CAP ACITIES 2- - ST AGE COO LING 8. 5 TONS 581J*09D AMBI ENT TEMPER AT URE 85 95 105 115 125 EA (dB) EA (dB) EA (dB) EA (dB) EA (dB) 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 2550 Cfm EA (wb) 58 THC 90.5 90.5 102.4 87 87 98.
32 T ABLE 18 – ST A TIC P RESSURE ADDERS ( F ACTOR Y O PT IONS AND/ OR ACCESSO RIES) Economize r 3 --- 5 T O N S CFM ( in. wg) 600 800 1000 1250 1500 1750 2000 2250 2500 2750 3000 Ve rt i ca l Economizer 0.01 0.02 0.04 0.05 0.07 0.09 0.12 0.15 0.18 0.
33 F AN PERFORMANCE ( BEL T DRIVE) T ABLE 19 – 581J*04 - - - - 3 P HASE- - - - 3 TON H ORIZONT AL SUPPL Y CFM Ava il ab le E xte rn al S tati c Pre ss ur e (in . wg) 0.2 0.4 0.6 0. 8 1.0 1. 2 1.4 1.6 1. 8 2.0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BH P RPM BHP RPM BHP RPM BHP RPM BHP RPM BH P 900 582 0.
34 F AN PERFORMANCE ( BEL T DRIVE) ( cont.) T ABLE 21 – 581J*05 - - - - 3 P HASE- - - - 4 TON H ORIZONT AL SUPPL Y CFM Ava il ab le E xte rn al S tati c Pre ss ur e (in . wg) 0.2 0.4 0. 6 0.8 1.0 1. 2 1.4 1.6 1.8 2. 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BH P RPM BHP RPM BHP RPM BHP RPM BHP RPM BH P 1200 681 0.
35 F AN PERFORMANCE BEL T DRIVE (cont . ) T ABLE 23 – 581J*06 - - - - 3 P HASE- - - - 5 TON H ORIZONT AL SUPPL Y CFM Ava il ab le E xte rn al S tati c Pre ss ur e (in . wg) 0.2 0. 4 0.6 0.8 1.0 1. 2 1.4 1.6 1.8 2.0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BH P RPM BHP RPM BHP RPM BHP RPM BHP RPM BH P 1500 798 0.
36 F AN PERFORMANCE (cont . ) T ABLE 25 – 581J*07 - - - - 3 P HASE- - - - 6 TON H ORIZONT AL SUPPL Y CFM Ava il ab le E xte rn al S tati c Pre ss ur e (in . wg) 0.2 0. 4 0.6 0.8 1. 0 1.2 1. 4 1.6 1.8 2.0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BH P RPM BHP RPM BHP RPM BHP RPM BHP RPM BH P 1800 441 0.
37 F AN PERFORMANCE BEL T DRIVE(cont . ) T ABLE 27 – 581J*08 - - - - 3 P HASE- - - - 7. 5 T O N H ORIZONT AL SUPPL Y CFM Ava il ab le E xte rn al S tati c Pre ss ur e (in . wg) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BH P RPM BHP RPM BHP RPM BHP RPM BHP RPM BH P 2250 482 0.
38 F AN PERFORMANCE BEL T DRIVE(cont . ) T ABLE 29 – 581J*09 - - - - 3 P HASE- - - - 8. 5 T O N H ORIZONT AL SUPPL Y CFM Ava il ab le E xte rn al S tati c Pre ss ur e (in . wg) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BH P RPM BHP RPM BHP RPM BHP RPM BHP RPM BH P 2250 520 0.
39 F AN PERFORMANCE X13 MUL TI SPEED /TORQUE MOTOR (cont.) T ABLE 31 – 581J*04A Hori zontal Unit- - Direct Dri ve Speed (T orqu e) tap CFM ESP BHP 1 900 0.45 0.23 975 0.33 0.22 1050 0.22 0.20 1125 0.12 0.19 1200 0.05 0.17 1275 --- --- 1350 --- --- 1425 --- --- 1500 --- --- 2 900 0.
40 T ABLE 33 – 581J*05A Hori zontal Unit- - Direct Dri ve Speed (T orqu e) tap CFM ESP BHP 1 1200 0.49 0.35 1300 0.34 0.33 1400 0.20 0.31 1500 0.06 0.29 1600 --- --- 1700 --- --- 1800 --- --- 1900 --- --- 2000 --- --- 2 1200 0.60 0.40 1300 0.45 0.38 1400 0.
41 T ABLE 35 – 581J*06A Hori zontal Unit- - Direct Dri ve Speed (T orqu e) tap CFM ESP BHP 1 1500 0.40 0.50 1625 0.20 0.48 1750 0.04 0.45 1875 --- --- 2000 --- --- 2125 --- --- 2250 --- --- 2375 --- --- 2500 --- --- 2 1500 0.62 0.62 1625 0.39 0.60 1750 0.
42 T ABLE 37 – PULLEY ADJUS TM ENT UNI T Motor/ Drive Comb o Mot or Pulley t urns open 0 0.5 1 1. 5 2 2.5 3 3.5 4 4. 5 5 04 3 Phase Mediu m Static 1175 1135 1094 1054 1013 973 932 892 851 811 770 Hi.
43 ECONOMIZER, BAROMETRI C RELIEF AND P E PERFORMANCE 0 500 1000 1500 2000 2500 0 0.05 0.1 0.15 0.2 0.25 0.3 RE TU RN DU CT S TATI C P RE SS U RE (i n. w g ) REL I E F F LO W (CF M) 3 - 5 T on - T o n Hor iz ontal Ec ono m izers ½ 8 6 C10233 Fig. 9 - - Bar omet ric Re li ef Flow Capac ity 0 1000 2000 3000 4000 5000 6000 0 0 .
44 ELECTRICAL INFO RMA TION T ABLE 38 – 581J*04A - - - - 1 - - ST AGE COOLING - - - - 3 TONS V --- P h --- H z VOL T AGE COMP (ea) OFM (ea ) IFM RANGE RL A LR A WAT T S FLA TYPE Max WAT T S Max AMP Draw EFF at F ull Load FL A MIN MAX 2 0 8 --- 1 --- 6 0 187 253 16.
45 ELECTRICAL INFORMA TION (CON’ T) T ABLE 40 – 581J*06A - - - - 1 - - ST AGE COOLING - - - - 5 TONS V --- P h --- H z VOL T AGE COMP (ea) OFM (ea ) IFM RANGE RL A LR A WAT T S FLA TYPE Max WAT T S Max AMP Draw EFF at F ull Load FL A MIN MAX 2 0 8 --- 1 --- 6 0 187 253 25.
46 ELECTRICAL INFORMA TION (CON’ T) T ABLE 42 – 581J*08D - - - - 2 - - ST AGE COOLING - - - - 7. 5 T O NS V --- P h --- H z VOL T AGE COMP (Cir 1) CO MP (Cir 2) OFM (ea ) IFM RANGE RL A LR A RLA LRA WAT T S FLA TYPE Max WAT T S Max AMP Draw EFF at Full Load FLA MIN MAX 2 0 8 --- 3 --- 6 0 187 253 13.
47 MCA/MOCP T ABLE 44 – M CA/MOCP DETERMINA TION NO C.O . OR UNPWRD C.O. - - 3 - - 5 TON UNI T v --- p H --- h Z IFM COMBUS T FAN MOTOR PWR EXHA UST NO C .O. or U NPWR C .O. NO P .E. w/ P .E . (pwrd f r/ u nit) TYPE FLA FLA MCA FUSE or HACR BRKR DISC.
48 MCA/MOCP (CON’T) T ABLE 45 – MCA/MO CP DETERMINA TION WI TH POWERED CONVENI ENCE OUTLET - - 3 - - 5 TON UNI T v --- p H --- h Z IFM COMBUS T FAN MOTOR PWR EXHA UST w/ P WRD C. O. NO P .E. w/ P .E . (pwrd f r/ u nit) TYPE FLA FLA MCA FUSE or HACR BRKR DISC.
49 MCA/MOCP (CON’T) T ABLE 46 – M CA/MOCP DETERMINA TION NO C.O . OR UNPWRD C.O. - - 6 - - 8.5 T O N UNI T V --- P h --- H z IFM COMBUS T FAN MOTOR PWR EXHA UST NO C .O. or U NPWR C .O. NO P .E. w/ P .E . (pwrd f r/ u nit) TYPE FLA FLA MCA FUSE or HACR BRKR DISC.
50 MCA/MOCP (CON’T) T ABLE 47 – MCA/MO CP DETERMINA TION WI TH POWERED CONVENI ENCE OUTLET . - - 6 - - 8.5 TON UNI T V --- P h --- H z IFM COMBUS T FAN MOTOR PWR EXHA US T w/ P WRD C. O. NO P .E. w/ P .E . (pwrd f r/ un it) TYPE FLA FLA MCA FUSE or HACR BRKR DISC.
51 TYPICAL WIRING DI AGRAMS C08518 Fig. 15 - - 1 - - Stage Cool ing T ypic al Power Di agram 581J.
52 TYPICAL WIRING DI AGRAMS (cont . ) C08577 Fig. 16 - - 2 - - Stage Cool ing T ypic al Power Di agram 581J.
53 C08524 Fig. 17 - - 1 - - Stage T ypic al Wi ring Diagr am 581J.
54 C08578 Fig. 18 - - 2 - - Stage T ypic al Wi ring Diagr am 581J.
55 SEQUENCE OF OPERA TI ON General The sequenc e be low describes t he sequence of opera tion for a n ele ctro - - m echa nical unit wit h a nd without a fact ory install ed Ec onoMi$er t IV (called “economizer ” in this sequence ).
56 SEQUENCE OF OPERA TI ON (cont. ) On the initial power to the Ec onoMi$er IV control, it will take t he dampe r up to 2 1/2 m inutes before i t begins to pos ition itself. After the initial pow er- - up, further chang es in damper position can take up to 30 seconds to initiate.
57 GUIDE SPECIFICA TIONS - - 581J*04 - - 09 Note about this speci ficat ion: This s pecification is in the “M asterfor mat” as publis hed by the Co nstructio n Specification I nstitute. Pleas e feel free to copy this specifi cati on direct ly into your bui lding spec.
58 1 1. Shall include an EIA - - 485 protoc ol communication port, an acces s port for connection of either a computer or a Bryan t technician tool, an EIA- - 485 port fo r network commu nication to in telligent s pace senso rs and d isplays , and a port to c onnect a n optional L onW orks plug - - in c ommunic ations ca rd.
59 3. High - - pressure switch. a. Unit s with 2 compressors shall have di fferent sized c onnectors for the c ircuit 1 a nd circui t 2 low and high pre s- sure switches. T hey shall physic ally pre vent the c ross- - wiring of the sa fety switche s between ci rcuits 1 and 2.
60 1. Unit shal l be stored a nd handled pe r manufa cturer ’ s recom mendat ions. 2. Lifted by cr ane requires either shipp ing top panel or s preader bars . 3. Unit shal l only be store d or positioned i n the upright position. 23 81 19.13.E . P roj ect Condi tions 1.
61 (2.) Optiona l, fa ctory - - approved, wat er - - t ight conne ction m ethod must be used for t hru- - the - - ba se elec trica l con- nect ions. (3.) No bas epan penetration , other than tho se authorized b y the manufacturer , is permitted. 10. Component access panels (standard) a.
62 23 81 19.13.J. Coi ls 1. Standa rd Aluminum Fin/ Copper Tube Coils: a. Sta ndard eva porator and c ondenser coil s shall have a luminum l anced pl ate fi ns mechani call y bonded to seam - less internally gr ooved copper tubes with al l joints brazed.
63 d. The pl ug shall be made of a lea k proof, UV- - re sistant, c omposite ma teria l. 3. Compressors a. Unit s hall use fu lly hermetic, scr oll compr essor for each ind ependent refr igeration circu it.
64 d. Shall i nclude a ll hardwa re and cont rols to provide fre e cooli ng with outdoor ai r when tempe rature a nd/or hu- midity are below setp oints. e. Shall be equipped with gear driven dampers for both the outdoor ventilation air and the return air for positive air stream co ntrol.
65 a. Powered c onvenie nce outl et. (1.) Outlet sh all be power ed from main line pow er to the rooftop u nit. (2.) Outlet sh all be power ed from line side or lo ad side of dis connect by ins talling contractor , as requir ed by code.
66 d. Sh all have tool- - less con nection terminal acces s. e. Shall hav e a recess ed momentary sw itch for testin g and resetting the detecto r . f. Control ler shall i nclude : (1.) One set of normally open alarm in itiation contacts for connection to an i nitiating device c ircuit on a fire alarm cont rol pan el.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Bryant 581J c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Bryant 581J - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Bryant 581J, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Bryant 581J va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Bryant 581J, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Bryant 581J.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Bryant 581J. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Bryant 581J ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
