Instruction/ maintenance manual of the product 549B Bryant
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F or m No . PD S 548F .36. 4 COMME RCIAL SINGLE P A CKA GE R O OFT OP ST AND ARD AND H IGH EFFICIEN CY HEA T PUMP UNI TS Stan dard -effi cien cy (5 48F ), and hig h-ef fici ency (542 J and 549B) hea t.
2 T ABLE OF CONTENTS Pa g e F eatures/Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Option s and Acc essor ies . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9 Controls . . . . . . . . . . . . . . . . . . . . .
3 INTEGRA T ED ECONOMI$ERS AND OUTDOOR AIR Option al EconoMi$ers and manual outdoor-air da mpers intro- duc e outd oor air whic h mixes wit h t he con dit ione d ai r , im provi ng indoor-a ir quality an d often redu cing energ y consu m ptio n.
4 OPTIONS AND A CCESSORIES *F actor y-installed. †Field-installed. **Special order/DEC only . NO TES: 1. Ref er to unit price pages or contact your local representativ e for accessor y/and option package information. 2. Some options may increase product lead t imes.
5 OPTIONS AND A CCESSORIES (cont) LO W AMBIENT CONTR OLS Standard units are designed to operate i n cooling at outdoor temperatures down to 25 F (f or size 036-120 units) and 40 F (f or s ize 150,180 units). With accessor y M otorm aster control (outdoor-fan cycling) units can o perate at outdoor temperatures down to –20 F .
6 OPTIONS AND A CCESSORIES (cont) CONTROLLER BAROMETRIC RELIEF DAMPERS OUTDOOR AIR TEMPERA TURE SENSOR GEAR-DRIVEN DAMPER ACTUA TOR ECONOMI$ER PLUG 20 40 60 80 100 0 A B C D OFF 500 1000 1400 1200 10 .
7 OPTIONS AND A CCESSORIES (cont) F actor y-installed, inter nally mounted, NEC ( National Electrical Code) and UL ( Underwr iters ’ Laboratories) approved non-fused s witch provides unit p ower s hutoff with disconnect loc kout protec- tion capability .
8 OPTIONS AND A CCESSORIES (cont) Outdoor coil hail guard accessor y (field installed) protects coils against damage from hail and other flyi ng debris. Coil guard grille protects coils against large objects and vandalism. BR Y ANT COMMERCIAL PROGRAMMABLE THERMOST A T NO TE : Hinged access panels are not av ailable on 548F units.
9 OPTIONS AND A CCESSORIES (cont) This is included as a f actor y-installed option. It per- mits quick and simple indoor-f a n access. This is included as a f act ory -installed option. It perm its tool-less filter access. NO TE: Hinged access panels are not av ailable o n 548F units.
10 CONTR OLS OPERA TING SEQUENCE — 548F036-120 AND 549B036-120 Cooling, Units W ithout Economizer — When th er mos tat calls f or co oli ng, ter m inal s G an d Y1 ar e ene rgize d. T he in door -fan contactor (IFC), re versin g valv e solenoid (R VS1) and compre s- sor cont actor no .
11 CONTRO LS (cont) NO TE: Compressor no . 2 cannot be energiz ed unles s there is a signal for Y2 from the space thermostat. 4. If compressor no . 2 is energiz ed, and the Y2 signal fro m the thermostat is s atisfied, compressor n o . 1 and 2 are d eener- giz ed.
12 CONTRO LS (cont) Heating, Uni ts Without Ec onomizer — With unit main po wer on, se t th er mos tat at H EA T po siti on an d de sire d roo m te mpera- ture. Set fa n swit ch at A UT O . (on demand) or ON (continuou s) posit ion . On a drop in room temper ature, heat ing contactor no .
13 CONTRO LS (cont) OPERA TING MODES BP — Building Pressurization: Indoor f an on, economizer energized to f ully open position, po wer e xhau st disabl ed. E— Evacuation: Indoor f an off, economiz er energized t o fully open position, po wer exhaust on (open).
14 CONTRO LS (cont) LEGEND APPLICA T ION D A T A 1. OUT DOOR INST ALLA TION — Units a pprov ed f or outdoor install ation only . 2. DUCTWORK — Secu re v er tical dischar ge ductwork to ro of curb .
15 APPLICA TION D A T A (cont) Concentric Duct Dis tr ib ution — 542J150 ,180 NO TE: 1. Do not drill in this area, damage to basepan may result in water leak. 2. A 90-degree elbow m ust be provided in the supply ductwork to comply with UL (Underwr iters ’ Laboratories) codes for use with electric heat.
16 TYPICAL PIPING AND WIRING V ertical Disc harge Ducting — 5 48F036-120 and 54 9B036-120 Horizonta l Dischar g e Ducting — 548F036 -120 and 549B03 6-120 LEGEND NEC — National Electric al Code.
17 TYPICAL PIPING AND WIRING (cont) LEG END NO TES: 1. Illustr at ion shown is a general guide only and is not intended f or or to include all de tails f or any specific installation.
18 MODEL NUMBER N OMENCLA TURE — 54 8F UNITS (ODS Model Number) ARI* CAP A CITY RA TINGS 548F036-0 60 548F072-1 20 LEGEN D *Air Conditioning and Refr igeration Institute. † Applies o nly to uni ts with capaci ty of 60, 000 Btuh or less. **The IP L V appl ies only t o 2-stage heat pu mp units.
19 PHYSICAL D A T A 548F036-0 72 LEGEN D *We i ght of 14-in. roof curb . † Single phase /three phase. NO T E: The 548F u nits have a loss-of-charge s witch located in the liquid line.
20 PHYSIC AL D A T A (cont) 548F090-1 20 LE GEND *We i ght of 14-in. roof curb . NO T E: The 548F u nits have a loss-of-charge s witch located in the liquid line.
21 B ASE UNI T DIMENSION S 548F036-0 72 50TFQ004 -012 548F036- 120.
22 B A SE UNIT DIMENSIONS (cont) 548F090 -120 50TFQ 004 -012 548F 036-120.
23 A CCESSOR Y DIMENSIONS TO ENSURE AIRTIGHT CONNECTION. PLACE UNIT AS CLOSE TO THIS END AS POSSIBLE TO ENSURE AIRTIGHT CONNECTION. PLACE UNIT AS CLOSE TO THIS END AS POSSIBLE ROOF CURB ACCE SSORY A UNIT SIZE CRRFCURB001A00 1 ′ -2 ″ [356 ] 548F036- 072 CRRFCURB002A00 2 ′ -0 ″ [610 ] NO TES: 1.
24 A CCESSOR Y DIMENSIONS (cont) TO ENSURE AN AIRTIGHT CONNECTION, PLACE UNIT ON CURB AS CLOSE TO DUCT END AS POSSIBLE. TO ENSURE AN AIRTIGHT CONNECTION, PLACE UNIT ON CURB AS CLOSE TO DUCT END AS POSSIBLE.
25 SELECTIO N PROCEDURE (W ITH 548F04 8 EXAMPLE ) I DETERMINE COOLING AND HEA TING LO ADS A T DESIGN CONDITIONS. Given: Required C ooling Capacity (TC) . . . . . . . . . . 38,000 Btuh Sensib le Heat Capaci ty (SHC). . . . . . . . . . . . 24,000 Btuh Required H eating Capacity .
26 PERFORMANCE D A T A COOL ING CAP A CITIE S 548F036 (3 TONS) Te m p ( F ) Outdoor Entering Air (Edb) Indoor Entering Air — Cfm /BF 900/0.10 1200/0.15 1500/0.21 Indoor Enteri ng Air — Ewb (F) 72 67 62 72 67 62 72 67 62 75 TC 42.4 39.9 36.5 43.0 41.
27 PERFORMANCE D A T A (cont) COOLING CAP ACITIES (cont) 548F072 (6 TONS) Te m p ( F ) Outdoor Enteri ng Air (Edb) Indoor En t ering Air — Cfm/BF 1800/0.10 2400/0.13 3000/0.19 Indoor En t ering Air — Ewb (F) 72 67 62 72 67 62 72 67 62 75 TC 81.1 77.
28 PERFORMANCE D A T A (cont) COOLING CAP ACITIES (cont) LEGEND NO TES: 1. Direct interpolation is permissible . Do not ext rapolate. 2. The foll owing f ormulas may be us ed: t lwb = W et-bul b temper ature c orresponding to ent halp y of air leavi ng indoor c oil ( h lwb ) Where: h ewb = Enthalp y of air entering e vapor ator coil 3.
29 PERFORMANCE D A T A (cont) INST ANT ANEOUS AND INTEGRA TED HEA TING RA TINGS (cont) LEGEND NO TES: 1. indicates integrated ratings. 2. Integrated capacity is maximum (instantaneous) capacity less the eff ect of frost on the outdoor co il and the heat required to defrost it.
30 PERFORMANCE D A T A (cont) INST ANT ANEOUS AND INTEGRA TED HEA TING RA TINGS (cont) LE GEND NOTES: 1. indicates integrated ratings. 2. Integrated capacity is maximum (instantaneous) capacity less the eff ect of frost on the outdoor coil and the heat required to defrost it.
31 PERFORMANCE D A T A (cont) INST ANT ANEOUS AND INTEGRA TED HEA TING RA TINGS (cont) LE GEND NOTES: 1. indicates integrated ratings. 2. Integrated capacity is maximum (instantaneous) capacity less the eff ect of frost on the outdoor co il and the heat required to defrost it.
32 PERFORMANCE D A T A (cont) F AN PERFORMANCE — VERTICAL DI SCHARGE UNITS LEGEND Ref e r to p age 51 f or genera l F an P e rforma nce notes. LEGEN D *Motor d rive range: 760 to 1000 r pm . All o ther r pms requir e field-s uppli ed dri ve . Refer to page 51 for genera l F an P erfor mance notes.
33 PERFORMANCE D A T A (cont) F AN PERFORMANCE — VER TICAL DISCHARGE UNITS (cont) LEGEND Refer to pa ge 51 f or general F an P erformance notes . LEGEND *Motor driv e range: 835 to 1185 r pm. All other rpms requir e field-supplied driv e. Ref er to page 51 f or general F an P erfo r mance notes .
34 PERFORMANCE D A T A (cont) F AN PERFORMANCE — VER TICAL DISCHARGE UNITS (cont) LEGEND Ref er to page 51 for general F an P er f or mance no tes. LEGEND *Motor drive range: 900 t o 1300 r pm. All other r pms require field- supplied drive. Ref er to page 51 f or general F an P erformance notes.
35 PERFORMANCE D A T A (cont) F AN PERFORMANCE — VER TICAL DISCHARGE UNITS (cont) LEGEND *Motor driv e range: 1300 to 1685 rpm. All other rpms requir e field-supplied driv e. Ref er to page 51 f or general F an P erfo r mance notes . NO T ES: 1. Boldfa ce indicates fiel d-supplied drive is r equired.
36 PERFORMANCE D A T A (cont) F AN PERFORMANCE — VER TICAL DISCHARGE UNITS (cont) LEGEND *Motor dr iv e range: 1300 to 1685 r pm. A ll other r pms require field- supplied drive. Ref er to page 51 f or general F an P erformance notes. NO TES: 1. Boldface indicates field-supplied dr iv e is required.
37 PERFORMANCE D A T A (cont) F AN PERFORMANCE — VER TICAL DISCHARGE UNITS (cont) LEGEND *Standard motor drive range: 590 to 840 r pm. Alternat e motor dr ive range: 685 to 935 r pm . All other rpms require field-supplied drive . Ref er to page 51 f or general F an P erformance notes.
38 PERFORMANCE D A T A (cont) F AN PERFORMANCE — VER TICAL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 860 t o 1080 r pm. All other r pms require field- supplied drive. Ref er to page 51 f or general F an P erformance notes. NO TES: 1. Boldface indicates field-supplied dr iv e is required.
39 PERFORMANCE D A T A (cont) F AN PERFORMANCE — VER TICAL DISCHARGE UNITS (cont) LEGEND *Motor dr iv e range: 685 to 935 r pm . All other r pms require field- supplied drive. Ref er to page 51 f or general F an P erformance notes. NO TES: 1. Boldface indicates field-supplied dr ive is required.
40 PERFORMANCE D A T A (cont) F AN PERFORMANCE — VER TICAL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 860 t o 1080 r pm. All other r pms require field- supplied drive. Ref er to page 51 f or general F an P erformance notes. NO TES: 1. Boldface indicates field-supplied dr iv e is required.
41 PERFORMANCE D A T A (cont) F AN PERFORMANCE — VER TICAL DISCHARGE UNITS (cont) LEGEND *Standard motor drive range: 685 to 935 r pm. Alternat e motor dr ive range: 835 to 1085 rp m. High-static motor dr iv e range is 830 to 1130 r pm. All other r pms require field-supplied dr ive .
42 PERFORMANCE D A T A (cont) F AN PERFORMANCE — HORIZONT AL DISCHARGE UNITS LEGEN D Refer to page 51 for genera l F an P erfor mance notes. LEGEN D *Motor d rive range: 760 to 1000 r pm . All o ther r pms requir e field-s uppli ed dri ve . Refer to page 51 for genera l F an P erfor mance notes.
43 PERFORMANCE D A T A (cont) F AN PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEGEN D Ref er to page 51 for gener al Fan P erformance notes . LEGEN D *Motor driv e range: 835 to 1185 r pm. All other rpms requir e field-supplied driv e. Ref er to page 51 f or general F an P erfo r mance notes .
44 PERFORMANCE D A T A (cont) F AN PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEG END Refer to page 51 for general F an P erformance no tes. LEG END *Motor drive range: 900 t o 1300 r pm. All other r pms require field- supplied drive. Ref er to page 51 f or general F an P erformance notes.
45 PERFORMANCE D A T A (cont) F AN PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEGEN D *Motor d rive range: 1300 t o 1685 r p m. All other r pms require field- supplied dri ve . Refer to page 51 for general F an Perf o r mance notes. NO TES: 1.
46 PERFORMANCE D A T A (cont) F AN PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEG END *Motor dr iv e range: 1300 to 1685 r pm. A ll other r pms require field- supplied drive. Ref er to page 51 f or general F an P erformance notes. NO TES: 1. Boldface indicates field-supplied dr ive is required.
47 PERFORMANCE D A T A (cont) F AN PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEG END *Motor dr iv e range: 590 to 840 r pm. A lternate m otor drive range: 685 to 935 r pm. All other r pms require field-supplied dr ive . Ref er to page 51 f or general F an P erformance notes.
48 PERFORMANCE D A T A (cont) F AN PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEG END *Motor drive range: 860 t o 1080 r pm. All other r pms require field- supplied drive. Ref er to page 51 f or general F an P erformance notes. NO TES: 1. Boldface indicates field-supplied dr ive is required.
49 PERFORMANCE D A T A (cont) F AN PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEG END *Motor dr iv e range: 685 to 935 r pm . All other r pms require field- supplied drive. Ref er to page 51 f or general F an P erformance notes. NO TES: 1. Boldface indicates field-supplied dr ive is required.
50 PERFORMANCE D A T A (cont) F AN PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEG END *Motor drive range: 860 t o 1080 r pm. All other r pms require field- supplied drive. Ref er to page 51 f or general F an P erformance notes. NO TES: 1. Boldface indicates field-supplied dr ive is required.
51 PERFORMANCE D A T A (cont) F AN PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEG END *Standard motor drive range: 685 to 935 r pm. Alternat e motor dr ive range: 835 to 1085 rpm. High static motor dr iv e range: 830 to 1130 r pm. All other r pms require field-supplied dr ive .
52 PERFORMANCE D A T A (cont) A CCESSOR Y/FIOP ST A TIC PRESSURE* (in. wg) — 548F 036 -072 LEGEND FIOP — F actory -Installed Option *The static pressur e must be adde d to external st atic pressure.
53 PERFORMANCE D A T A (cont) FLOW (cfm) 0 0.1 0.2 0.3 0.4 0.5 ST A TIC PRESSURE (in. wg) 2 F ANS OPERA TING 1 F AN OPERA TING 2500 2000 1500 1000 500 0 5000 4000 3000 2000 1000 0 0 0.1 0.2 0.3 0.4 0.5 ST A TIC PRESSURE (in. wg) FLOW (cfm) 2 F ANS OPERA TING 1 F AN OPERA TING 0.
54 PERFORMANCE D A T A (cont) ELECTRIC HEA TING CAP ACI T IES *T wo heater p ackages requi red to pr ovide kW indica ted. † On units w ith factor y-installed outlet, use CRS INGLE014 A00.
55 PERFORMANCE D A T A (cont) INDOOR-F AN MO TOR PERFORMANCE — 548F UNITS LEGEN D BHP — Brake Horsepower *Extensive motor and elect rical te sting on these u nits ensur es that the full horse- power range of the motor s can be utilized with confidence.
56 ELECTRICAL D A T A UNITS WITHOUT ELECTRICAL CONVENIENCE OUTLET NO TE: Lege nd and Notes for Electrical Data are on page 64. UNIT 548F NOMINAL V- P H - H z IFM TYPE VO LT AG E RANGE COMPRESSO R (eac.
57 ELECTRICAL D A T A (cont) UNITS WITHOUT ELECTRICAL CONVENIENCE OUTLET (cont) NO TE: L egend an d Notes for Ele ctrica l Data a re on pag e 64. UNIT 548F NOMINAL V- P H - H z IFM TYPE V O LTA G E RA.
58 ELECTRICAL D A T A (cont) UNITS WITHOUT ELECTRICAL CONVENIENCE OUTLET (cont) NO TE: L egend an d Notes for Ele ctrica l Data a re on pag e 64. UNIT 548F NOMINAL V- P H - H z IFM TYPE VO L TA G E RA.
59 ELECTRICAL D A T A (cont) UNITS WITHOUT ELECTRICAL CONVENIENCE OUTLET (cont) NO T E: Legend and N otes f or Electrical Data are on page 64. UNIT 548F NOMINAL V- P H - H z IFM TYPE V O LTA G E RANGE.
60 ELECTRICAL D A T A (cont) UNITS WITH ELECTRICAL CO NVENIENCE OUTLET NO T E: Legend and N otes f or Electrical Data are on page 64. UNIT 548F NOMINAL V- P H - H z IFM TYPE VO LT AG E RANGE COMPRESSO.
61 ELECTRICAL D A T A (cont) UNITS WITH ELECTRICAL CONVENIENCE OUTLET ( c ont) NO TE: L egend an d Notes for Ele ctrica l Data a re on pag e 64. UNIT 548F NOMINAL V- P H - H z IFM TYPE VO LT AG E RANG.
62 ELECTRICAL D A T A (cont) UNITS WITH ELECTRICAL CONVENIENCE OUTLET ( c ont) NO TE: Lege nd and Notes for Electrical Data are on page 64. UNIT 548F NOMINAL V- P H - H z IFM TYPE V O LTA G E RANGE CO.
63 ELECTRICAL D A T A (cont) UNITS WITH ELECTRICAL CONVENIENCE OUTLET ( c ont) NO T E: Legend and N otes f or Electrical Data are on page 64. UNI T 548F NOMINAL V- P H - H z IFM TYPE V O LTA G E RANGE.
64 ELECTRICAL D A T A (cont) LEGEND AND NO TES FOR ELECTRICAL T A BLES LEGEND *Heaters are field installed only . † Used to determine minimum disconnect size per NEC. **Heater capacity (kW) is based on heater voltage of 208 v , 240 v , 480 v , and 575 v .
65 TYPICAL WIRING SCHEMA TIC LEGEN D AHA — Adjustab le Heat Anticipator AW G — American Wire Gage C — Contactor , Compressor CAP — Capa citor CB — Circuit Breaker CC — Cooling Capaci tor C.
66 TYPICAL WIRING SCHEMA TIC (cont) 12-PIN FEMALE 11 12 10 9 5 6 7 8 4 3 2 1 MOLEX CONNECTOR PL6 12 11 10 9 8 7 6 5 4 3 2 1 RED BLU BLK BRN GRY VIO PNK YEL ORN FIELD INST ALLED OPTION RA T OA T VIO WH.
67 MODEL NUMBER NOME NCLA TURE (ODS Model Number) ARI* CAP A CITY RA TINGS 549B03 6-060 549B07 2-120 LEGEND *Air Conditioning and Refrigeration I nstitute. † Applies only to units with capaci ty of 60,000 Btuh or less. NO TE: Rated in accordance with ARI Standard 210/240-95 and 270-95.
68 PHYSICAL D A T A 549B03 6-072 LEG END B A SE UNIT 549B 036 048 060 072 NOMINAL CAP A CITY (t ons) 34 5 6 OPERA TING WEIGHT (lb) Uni t 500 550 590 630 Durabla de Economizer 34 34 34 34 EconoMi $er 47 47 47 47 Roo f C urb 115 115 115 115 COMPRESSOR Scro ll Quantity 11 1 1 Oil (oz ) 42 53 50 60 REFRIGERANT TYPE R-22 Operating Charge (lb) 6.
69 PHYSIC AL D A T A (cont) 549B09 0,120 LEG END BASE UNIT 549B 090 120 NOMINAL CAP A CITY (t ons) 7 1 / 2 10 OPERA TING WEIGHT (lb) Uni t 870 1000 Durabla de Economizer 44 44 EconoMi $er 62 62 Roo f C urb 223 223 COMPRESSOR Scroll Quantity 22 Oil (oz) (each compr) 57 57 REFRIGERANT TYPE R-22 Operating Charge (lb) Cir cui t 1 9.
70 B ASE UNI T DIMENSION S 549B0 36-072 50TFQ 004 -012 549B036 -120.
71 B A SE UNIT DIMENSIONS (cont) 549B0 90,120 50TFQ 004-0 12 549B036- 120.
72 A CCESSOR Y DIMENSIONS TO ENSURE AIRTIGHT CONNECTION. PLACE UNIT AS CLOSE TO THIS END AS POSSIBLE TO ENSURE AIRTIGHT CONNECTION. PLACE UNIT AS CLOSE TO THIS END AS POSSIBLE ROOF CURB AC C ES S O RY A UNIT SIZE CRRFCURB001A00 1 ′ -2 ″ [356] 54 9B036-0 72 CRRFCURB002A00 2 ′ -0 ″ [610] NO TES: 1.
73 A CCESSOR Y DIMENSIONS (cont) TO ENSURE AN AIRTIGHT CONNECTION, PLACE UNIT ON CURB AS CLOSE TO DUCT END AS POSSIBLE. TO ENSURE AN AIRTIGHT CONNECTION, PLACE UNIT ON CURB AS CLOSE TO DUCT END AS POSSIBLE.
74 SELECTION PROCEDURE (WITH 549B048 EXAMPLE) I DETERMINE CO OLING AND HEA TING REQUIRE- MENTS A T DESIGN CO NDITIONS. Given: Required C ooling Capacity (TC) . . . . . . . . . . . 38,00 0 Btuh Sensib le Heat Capaci ty (SHC) . . . . . . . . . . . . 24,00 0 Btuh Required H eating Capacity .
75 PERFORMANCE D A T A COOLING CAP A CITIES 549B03 6 (3 T ons ) Te m p ( F ) Outdoo r Enteri ng Air (Edb) Indoor Entering Air — Cfm/Bf 900/0.13 1200/0.17 1500/0 .19 Indoor Entering A ir — Ewb (F) 72 67 62 72 67 62 72 67 62 75 TC 41.7 38. 4 34.1 4 3.
76 PERFORMANCE D A T A (cont) COOLING CAP ACITIES (cont) 549B0 72 (6 T ons) Te m p ( F ) Outdoo r Entering A ir (Edb) Indoo r Entering Air — Cfm/Bf 1800/0.06 2100/0.06 6 2400/0 .071 300 0/0.088 Indo or En terin g Air — Ewb (F) 72 67 62 57 72 67 62 57 72 67 62 57 72 67 62 57 75 TC 83.
77 PERFORMANCE D A T A (cont) INST ANT ANEOUS AND INTEGRA TED HEA TING RA TINGS LEGEND NO TES: 1. indicates integrated ratings. 2. Integrated capacity is maximum (instantaneous) capacity less the eff ect of frost on the outdoor co il and the heat required to defrost it.
78 PERFORMANCE D A T A (cont) INST ANT ANEOUS AND INTEGRA TED HEA TING RA TINGS (cont) LEGEND NO TES: 1. indicates integrated ratings. 2. Integrated capacity is maximum (instantaneous) capacity less the eff ect of frost on the outdoor coil and the heat required to defrost it.
79 PERFORMANCE D A T A (cont) INST ANT ANEOUS AND INTEGRA TED HEA TING RA TINGS (cont) LEGEND NO TES: 1. indicates integrated ratings. 2. Integrated capacity is maximum (instantaneous) capacity less the eff ect of frost on the outdoor co il and the heat required to defrost it.
80 PERFORMANCE D A T A (cont) F AN PERFORMANCE — VERTICAL DI SCHARGE UNITS LEG END Ref er to page 87 f or general F an P erformance notes. NO TES: 1. Boldface indicates a field-supplied drive is required. (See Note 3.) 2. Maximum continuous bhp is 1.
81 PERFORMANCE D A T A (cont) F AN PERFORMANCE — VER TICAL DISCHARGE UNITS (cont) LEGEND Refer to page 87 for general F an P erfor mance notes. NO TES: 1. Boldface indi cates a fi eld-suppl ied dr ive is requir ed. (See Note 4. ) 2. indi cates fi eld-suppl ied motor and d rive are requ ired.
82 PERFORMANCE D A T A (cont) F AN PERFORMANCE — VER TICAL DISCHARGE UNITS (cont) LEG END Ref er to page 87 f or general F an P erformance notes. NO TES: 1. Boldface indicates a field-supplied drive is required. (See Note 4.) 2. indicates field-supplied motor and drive are r equired.
83 PERFORMANCE D A T A (cont) F AN PERFORMANCE — VER TICAL DISCHARGE UNITS (cont) LEG END Ref er to page 87 f or general F an P erformance notes. NO TES: 1. Boldface indicates a field-supplied drive is required. (See Note 4.) 2. indicates field-supplied motor and drive are r equired.
84 PERFORMANCE D A T A (cont) F AN PERFORMANCE — HORIZONT AL DISCHARGE UNITS LEG END Ref er to page 87 f or general F an P erformance notes. NO TES: 1. Boldface indicates a field-supplied drive is required. (See Note 3.) 2. Maximum continuous bhp is 1.
85 PERFORMANCE D A T A (cont) F AN PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEGEND Refer to page 87 for general F an P erfor mance notes. NO TES: 1. Boldface indi cates a fi eld-suppl ied dr ive is requir ed. (See Note 4. ) 2. indi cates fi eld-suppl ied motor and d rive are requ ired.
86 PERFORMANCE D A T A (cont) F AN PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEG END Ref er to page 87 f or general F an P erformance notes. NO TES: 1. Boldface indicates a field-supplied drive is required. (See Note 4.) 2. indicates field-supplied motor and drive are r equired.
87 PERFORMANCE D A T A (cont) F AN PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEG END Ref er to this page for gener al F an P erf or mance not es. NO TES: 1. Boldface indicates a field-supplied drive is required. (See Note 4.) 2. indicates field-supplied motor and drive are r equired.
88 PERFORMANCE D A T A (cont) A CCESSOR Y/FIOP ST A TIC PRESSURE* (in. wg) — 549B 036-072 LEGEND FIOP — F actory -Installed Option *The static pressure must be added to e x ternal static pressur e.
89 PERFORMANCE D A T A (cont) OPTIONAL PO WER EXHA UST PO WER REQUIREMENTS INDOOR-F AN MO T OR D A T A — 549B036-1 20 LEG END *Extensive motor and electrical testing on these u nits ensures that the full horsepower and watts range of the motors can be utilized with confidence .
90 PERFORMANCE D A T A (cont) ELECTRIC HEA TING CAP ACI TIES ELECTRIC HEA TING CAP A CITIES (cont) *T wo heater p ackages requi red to pr ovide kW indica ted. † On units w ith factor y-installed outlet, use CRS INGLE014 A00. NO TES: The kW rating s shown ab ove are at 240 and 48 0 v .
91 ELECTRICAL D A T A UNITS WITHOUT ELECTRICAL CONVENIENCE OUTLET UNIT 549B NOMINAL VO L TA G E (V -Ph- Hz) V O LTA G E RANGE COMPRESSOR OFM IFM ELEC TRIC HEA T* PO WE R SUPPL Y MINIMUM UNIT DISCONNECT SIZE Min Max RLA LRA FLA FLA kW † FLA MCA M OCP FLA LRA 036 (3 T ons) 208/230-1-60 187 254 16.
92 ELECTRICAL D A T A (cont) UNITS WITHOUT ELECTRICAL CONVENIENCE OUTLET (cont) LEGEND AND NO TES FOR ELECTRICAL D A T A T ABLES LE GEND *Used to determine minimum disconnect per NEC. † Heater capacity (kW) is based on heater voltage of 208 v and 480 v .
93 ELECTRICAL D A T A (cont) UNITS WITH ELECTRICAL C ONVENIENCE OUTLET UNIT 549B NOMINAL V O LTA G E (V -Ph- Hz) V O LTA G E RANGE COMPRESSOR OFM IFM ELECTRI C HEA T* PO WER SUPPL Y MINI MUM UNI T DISCONNECT SIZE Min Max RLA LRA FLA FLA kW † FLA MCA MOCP FLA LRA 036 (3 T ons) 208/230-1-60 187 254 16.
94 ELECTRICAL D A T A (cont) UNITS WITH ELECTRICAL CONVENIENCE OUTLET ( c ont) LEGEND AND NO TES FOR ELECTRICAL D A T A T ABLES LE GEND *Used to determine minimum disconnect per NEC. † Heater capacity (kW) is based on heater voltage of 208 v and 480 v .
95 TYPICAL WIRING SCHEMA TIC 549B03 6-120 50TFQ 004-0 12 549B036- 120.
96 TYPICAL WIRING SCHEMA TIC (cont) LEGEND FOR TYPICAL WIRING SCHEMA TIC IMPOR T ANT: Consult unit wiring label f or actual wiring schematic. NO TES: 1. If any of the original wire fur nished must be replaced, it must be replaced with type 90 C wi r e or its equiv alent.
97 GUIDE SPECIFICA TIONS — 548F AND 549B 036-120 UN ITS P A CKA GED ROOFT OP AIR-T O-AIR HEA T PUMP — CONST ANT V OLUME APPLICA TION HV A C GUIDE SPECIFICA TIONS SIZE RANGE: 3 T O 10 T ONS, NOMINAL (COOLING) BR Y ANT MODEL NUMBER: 548F , 549B PA R T 1 — Gen eral 1.
98 GUIDE S PECIFICA TIONS — 548 F AND 549B036-12 0 UNITS (cont) b . E-Coated alumi num-fi n coils shall ha v e a fle xibl e epo xy polyme r coating unif ormly applie d to all coil surf ace areas without material bridging betw een fins . Coating proc ess shall en sure comple te coil encaps ulation.
99 GUIDE S PECIFICA TIONS — 548 F AND 549B036-12 0 UNITS (cont) K. Electrical Re quirements: All unit po wer wi ring shall enter unit cabinet at a single f actor y-pred r illed loc ation.
100 GUIDE S PECIFICA TIONS — 548 F AND 549B036-12 0 UNITS (cont) 15. Co mpressor C ycle Dela y: Unit shal l be pre v ented from resta r ting f or minimu m of 5 mi n. aft er sh utdown . *16. Thru-the-Bottom Utility Connectors: Kit shal l provid e connec tors to permit electrical con- nection s to be brought to the unit th rough the base pan.
101 MODEL NUMBER NOMENCLA TURE — 542J15 0,180 UNITS Nominal Cooling Capacity 150 – 12 T ons 180 – 15 T ons Factory-Installed Outdoor Air Upgrade Options C – Economizer H – 25% Manual Damper .
102 ARI* CAP A CITY RA TINGS 542J150,1 80 UNITS LEGEND *Air-Conditioning and Refr igeration Institute. NO TES: 542J units are r ated in accordance with ARI Standard 340. Cooling ratings are net values, reflecting the eff ects of c irculating f an heat.
103 PHYSIC AL D A T A (cont) 542J150,1 80 LEGEND *W eight of 14 in. roof cu rb UNIT 542J 150 180 OPERA TING WT (lb) Uni t 1 615 1925 Electric Heat 65 65 EconoMi $er 80 80 Roo f C urb* 200 200 COMPRESS.
104 B ASE UNI T DIMENSION S *Units wit h aluminum indoo r and outd oor co il fins. UNIT 542J MAXIMUM SHIPPI NG WEIGHT* Lb Kg 150 1895 860 180 2205 1000 LEG END UNIT 542J DIMENSIONS XY Ft-in. mm Ft-i n. mm 150 3-1 947 3 -2 965 180 3-6 105 9 3-8 1105 KO — Knock out NO TE S: 1.
105 A CCESSOR Y DIMENSIONS PKG NO . REF . CURB HEIGHT DESCRIPTION CRRFCURB010A00 1 ′ -2 ″ (305) Standa rd Curb 14 ″ High CRRFCURB011A00 2 ′ -0 ″ (610) Standa rd Curb for Units Requiring High.
106 A CCESSOR Y DIMENSIONS (cont) Horizontal A dapter Installa tion — 542J150, 180 NO TE: CRRFCURB013A0 0 is a fully factory pre-assembled horizontal adapter which includes an insulated high stat ic regain transition duct and substantially improv es fan static performance.
107 A CCESSOR Y DIMENSIONS (cont) 2'-1 5/8" 2'-2 1/16" 1'-6 5/16" Non-Fused Disco nnect — 542J 150,180 Pow e r E x h a u s t — 542J150,180 50TFQ004- 012 542J 150,180.
108 SELECTION PROCEDURE (WITH 542J180 EXAMP LE) I DETERMINE HEA TING AND COOLING REQUIRE- MENTS A T DESIGN CO NDITIONS. Given: Required C ooling Capacity (TC) . . . . . . . . . . 164,00 0 Btuh Sensib le Heat Capaci ty (SHC) . . . . . . . . . . . 120 ,000 Btuh Required H eating Capacity .
109 PERFORMANCE D A T A COOLING CAP A CITIES LEGEND NO TES: 1. Direct interpolation is per missible . Do not e xtrapolate. 2. The f ollowing f or mulas may be used: t lwb = W et-bulb temperature corresponding to enthalpy of air leav- ing indoor coil (h lw b ) Where: h ew b = Ent halpy of air enter ing indoor coil 3.
110 PERFORMANCE D A T A (cont) INTEGRA TED HEA TING CAP A CITIES LEGEND NOTES: 1. Int egrated he ating capaci ty rating s shown are no t adjuste d for the effects of the ind oor-fan motor power an d heat . A deduct ion has been made for defrost- ing the outdoor coils at te mperatu res below 40 F .
111 PERFORMANCE D A T A (cont) F AN PERFORMANCE — VERTICAL DI SCHARGE UNITS LE GEND Refer to this pa ge for general Fan P er formanc e notes. NO TES: 1. Stan dard dr ive range is 891 to 11 79 r pm. Alter nat e drive rang e is 122 7 to 1559. Oth er r pms m ay require a f ield-sup plied dr ive.
112 PERFORMANCE D A T A (cont) A CCESSOR Y/FIOP ST A TIC PRESSURE* (in. wg) — 542 J150,180 LEGEND *Units with electric heat are not designed t o operate at t hese ranges. NO TES: 1. Heaters are rated at 208/240 v and 480 v . 2. The static pressure must be added to external static press ure.
113 PERFORMANCE D A T A (cont) ELECTRIC HEA TING CAP ACIT IES — 542J150,18 0 *Maximum number of stages using accessory outdoor-air thermos tats. NOTE: Heaters are rated at 208 v , 240 v and 480 v .
114 PERFORMANCE D A T A (cont) INDOOR-F AN M O T OR PERFORMANCE — 542J150, 180 LEGEN D *Extens ive motor and electr ical testin g on these units ensures that the full horse - power range of the motors can be utilized with con fidence.
115 TYPICAL WIRING SCHEMA TIC 542J180 , 460-3-60 Sho wn 50TFQ004- 012 542J 150,180.
116 TYPICAL WIRING SCHEMA TIC (cont) LEGEND AND NO TES FOR TYPICAL WIRING SCHEMA TIC AHA — Adjustable Heat Anticipator BKR W/A T — Breaks with Amp T ur ns C — Contactor , Com pressor CAP — Cap.
117 TYPICAL WIRING SCHEMA TIC (cont) 5L3 3L2 1L1 LINE 6T3 4T2 2T1 LOAD Optional Non-Fused Disconnect — 542 J150,180 NO TES: 1. If the non-fused disconnect Ser vice Option is ordered for size 150,180 units, the Non-Fused Disconnect will be f actor y-installed.
118 GUIDE SPE CIFICA TIONS — 542J150 ,180 UNITS P A CKA GED ROOFT OP AIR-T O-AIR HEA T PUMP — CO N- ST ANT V OLUME APPLICA TION HV A C GUIDE SPECIFICA TIONS SIZE RANGE: 12 to 15 T ONS, NOMI NAL (COOLING) 136,000 to 172,000 BTUH, N OMINAL (INPUT HEA TING) BR Y ANT MODEL NUMBER: 542J PA R T 1 — GENERAL 1.
119 GUIDE SP ECIFICA T IONS — 542J1 50,180 UNITS (cont) b . E-Coated alumi num-fi n coils shall ha v e a fle xibl e epo xy polyme r coating unif ormly applie d to all coi l surf ace areas without material bridging betw een fins . Coating proc ess shall en sure comple te coil encaps ulation.
120 GUIDE SP ECIFICA T IONS — 542J1 50,180 UNITS (cont) K. Electrical Re quirements: All unit po wer wi ring shall enter unit cabinet at a single f actor y-pred r illed loc ation.
121 GUIDE SP ECIFICA T IONS — 542J1 50,180 UNITS (cont) 15. P ower Exh aust Access or y: P ower exhaust sha ll b e used to provide s ystem exhaust of up to 10 0% of retu r n air. The power exhaust is a fi eld-i nstall ed acc essor y (ver t ical ap plic ations ).
Copyright 20 02 Br yant Hea ting & C ooling Systems Print ed in U.S.A. 1/02 Catalog No. 5254-804 SPECIFICATIONS SUBJE CT TO CHANGE WITHOUT NOTICE UNIT MUST BE INST ALLED IN ACCORDANCE WITH INSTALL.
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If you have not bought Bryant 549B yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Bryant 549B - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Bryant 549B you will learn all the available features of the product, as well as information on its operation. The information that you get Bryant 549B will certainly help you make a decision on the purchase.
If you already are a holder of Bryant 549B, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Bryant 549B.
However, one of the most important roles played by the user manual is to help in solving problems with Bryant 549B. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bryant 549B along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
