Instruction/ maintenance manual of the product 549C Bryant
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Form No. PDS548F-36-6 COMMERCIAL SINGLE P ACKAGE ROOFT OP ST ANDARD AND HIGH EFFICIENCY HEA T PUMP UNITS S tandard-Ef ficiency (548F ), and High-Efficiency (549B, 549C, 542J) heat pump units offer: .
2 T ABLE OF CONTENTS Features/Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Model Number Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . 4,5 ARI Capacity Ratings . . . . . . . . . . . . . . . . . . . . . .
3 INTEGRA TED ECONOMIZERS AND OUTDOOR-AIR DAMPERS Available as options or accessories, economizers and manual outdoor-air dampers introduce outdoor air which mixes with th e conditioned air , improving in door-air quality and o ften reducing energy consumption.
4 MODEL NUMBER NOMENCLA TURE — 548F UNITS (ODS Model Number) MODEL NUMBER NOMENCLA TUR E — 549B AND 549C UNITS (ODS Model Number) V oltage Designation E– 460-3-60 J– 208/230-1-60† P– 208/230-3-60 T– 575-3-60 548F E X 090 000 AA 548F – Single-Package Heat Pump Unit X– No Heat Installed.
5 MODEL NUMBER NOMENCLA TURE — 542J150,180 UNITS ARI* CAP ACITY RA TIN GS 548F036-060 548F072-120 LEGEND *Air Conditioning and Refrigeration I nstitute. †Applies only to units with capacity of 60,000 Btuh or less. **The IPL V applies o nly to 2-stage cooling heat pump units.
6 ARI* CAP ACITY RA TINGS (cont) 549C024-060 549B036-060 549B072-120 LEGEND *Air Conditioning and Refrigeration Institute. †Applies only to units with capacity of 60,000 Btuh or less. NOTE: Rated in accordance with ARI S tandard 210/240-94 and 270- 95.
7 OPTIONS AND ACCESSORIES 548F036-120 *Factory-installed. †Field-installed. NOTES: 1. Refer to unit guide specificati ons, price pages, or contact your local representative for accessory and option package information. 2. Some options may increase pr oduct lead times.
8 OPTIONS AND ACCESSORIES (cont) 549B036-120, 549C024-0 60 *Factory-installed. †Field-installed. NOTES: 1. Refer to unit guide specificati ons, price pages, or contact your local representative for accessory and option package information. 2. Some options may increase pr oduct lead times.
9 OPTIONS AND ACCESSORIES (cont) 542J150,180 *Factory-installed. †Field-installed. NOTES: 1. Refer to unit price pages or contact your local representative for accessory and option package information. 2. Some options may increase pr oduct lead times.
10 OPTIONS AND ACCESSORIES (cont) Roof Curbs (Horizontal and V ertical) permit inst allation and securing of ductwork to curb prior to mounting unit on the curb.
11 OPTIONS AND ACCESSORIES (cont) TR1 24 V ac COM TR 24 Va c HOT 12 3 4 5 EF EF1 + _ P1 T1 P T N EXH 2V 10V EXH Set Set 2V 10V 2V 10V DCV DCV Free Cool B C A D SO+ SR+ SR SO AQ1 AQ DCV Min Pos Open Ma.
12 OPTIONS AND ACCESSORIES (cont) CONTROL BOX HINGED P ANEL OPTION, 549B036-072 UNITS SHOWN CONTROL BOX HINGED P ANEL OPTION, 549B090-120 UNITS SHOWN COMPRESSOR HINGED P ANEL OPTION, 549B090-120 UNITS SHOWN COMPRESSOR HINGED P ANEL OPTION, 549B036-060 UNIT S SHOWN NOTE: Hinged access panels are not available on 548F units.
13 OPTIONS AND ACCESSORIES (cont) EV APORA TOR-F AN HINGED P ANEL OPTION FIL TER HINGED P ANEL OPTION NOTE: Hinged access panels are not available on 548F units.
14 PHYSICAL DA T A 548F036-072 LEGEND *Weight of 14-in. roof curb. †Single phase/three phase. NOTE: The 548F units have a loss-of-charge switch located in the liquid line.
15 PHYSICAL DA T A 548F090-120 LEGEND Bhp — Brake Horsepower *Weight of 14-in. roof curb. UNIT SIZE 548F 090 120 NOMINAL CAP ACITY (tons) 7 1 / 2 10 OPERA TING WEIGHT (lb) Unit 940 1015 Economizer E.
16 BASE UNIT DIMENS IONS 548F036-072 a50-8044 548F.
17 BASE UNIT DIMENSIONS (cont) 548F090,120 a50-8045 548F.
18 ACCESSOR 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 ACCESSOR Y A UNIT SIZE CRRFCURB001A00 1 ′ -2 ″ [356] 548F036-072 CRRFCURB002A00 2 ′ -0 ″ [610] NOTES: 1.
19 ACCESSOR 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.
20 SELECTION PROCEDURE (WITH 548F048 EXAMPLE) I DETERMINE COOLING AND HEA TING LOADS A T DESIGN CONDITIONS. Given: Required Cooling Capacity (TC) . . . . . . . . . . . 38,000 Btuh Sensible Heat Capacity (SHC) . . . . . . . . . . . . 24,000 Bt uh Required Heating Capacity .
21 PERFORMANCE DA T A — 548F COOLING CAP ACITIES 548F036 (3 TONS) Te m p ( F ) Out door Entering Air (Edb) Indoor Entering Air — Cfm/BF 900/0.10 1200/0.15 1500/0.21 Indoor E ntering Air — Ewb (F ) 72 67 62 72 67 62 72 67 62 75 TC 42.4 39.9 36.5 43.
22 PERFORMANCE DA T A — 548F (cont) COOLING CAP ACITIES (cont) 548F072 (6 TONS) Te m p ( F ) Out door Entering Air (Edb) Indoor Entering Air — Cfm/BF 1800/0.10 2400/0.13 3000/0.19 Indoor Entering Air — Ewb (F) 72 67 62 72 67 62 72 67 62 75 TC 81.
23 PERFORMANCE DA T A — 548F (cont) COOLING CAP ACITIES (cont) LEGEND NOTES: 1. Direct int erpolation is permissible. Do not extrapolate. 2. The f ollowing formulas may be used: t lwb = Wet-bulb temperature corresponding to enthalpy of air leav- ing indoor coil (h lwb ) Where: h ewb = Enthalpy of air entering evaporator coil 3.
24 PERFORMANCE DA T A — 548F (cont) INST ANT ANEOUS AND INTEGRA TED HEA T ING RA TINGS (cont) LEGEND NOTES: 1. indicates integrated ratings. 2. Integr ated cap acity is maximum (instantaneous) capacity less the effect of frost on the outdoor coil and the heat required to defro st it.
25 PERFORMANCE DA T A — 548F (cont) INST ANT ANEOUS AND INTEGRA TED HEA T ING RA TINGS (cont) LEGEND NOTES: 1. indicates integrated ratings. 2. Integr ated cap acity is maximum (instantaneous) capacity less the effect of frost on the outdoor coil and the heat required to defrost it.
26 PERFORMANCE DA T A — 548F (cont) INST ANT ANEOUS AND INTEGRA TED HEA T ING RA TINGS (cont) LEGEND NOTES: 1. indicates integrated ratings. 2. Integr ated cap acity is maximum (instantaneous) capacity less the effect of frost on the outdoor coil and the heat required to defro st it.
27 PERFORMANCE DA T A — 548F (cont) F AN PERFORMANC E — VERT ICAL DISCHARGE UNITS LEGEND See General Fan Performance notes below . LEGEND *Motor drive range: 760 to 1000 rpm. All other rpms require a field- supplied drive. See General Fan Performance notes below .
28 PERFORMANCE DA T A — 548F (cont) F A N PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 1075 to 1455 rpm. All other rpms require a field- supplied drive. See General Fan Performance notes on page 27. NOTES: 1. Boldface indicates field-supplied drive is requ ired.
29 PERFORMANCE DA T A — 548F (cont) F A N PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 770 to 1 175 rpm. All other rpms require a field- supplied drive. See General Fan Performance notes on page 27. NOTES: 1. Boldface indicates field-supplied drive is req uired.
30 PERFORMANCE DA T A — 548F (cont) F A N PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) LEGEND See General Fan Performance notes on page 27. LEGEND *Motor drive range: 878 to 1 192 rpm. All other rpms require a field- supplied drive. See General Fan Performance notes on page 27.
31 PERFORMANCE DA T A — 548F (cont) F A N PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 1300 to 1685 rpm. All other rpms r equire a field-supplied drive. See General Fan Performance notes on p age 27. NOTES: 1. Boldface indicates field-supplied drive is required .
32 PERFORMANCE DA T A — 548F (cont) F A N PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 1300 to 1685 rpm. All other rpms require a field- supplied drive. See General Fan Performance notes on page 27. NOTES: 1. Boldface indicates field-supplied drive is requ ired.
33 PERFORMANCE DA T A — 548F (cont) F A N PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 590 to 840 rpm. All other rpms require field- supplied drive. Refer to page 27 General Fan Performance Notes. NOTES: 1. Boldface indicates field-supplied drive is req uired.
34 PERFORMANCE DA T A — 548F (cont) F A N PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 685 to 935 rpm. All other rpms require field- supplied drive. Refer to page 27 General Fan Performance Notes. NOTES: 1. Boldface indicates field-supplied drive is requ ired.
35 PERFORMANCE DA T A — 548F (cont) F A N PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 860 to 1080 rpm. All othe r rpms require field- supplied drive. Refer to page 27 General Fan Performance Notes. NOTES: 1. Boldface indicates field-supplied drive is req uired.
36 PERFORMANCE DA T A — 548F (cont) F A N PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 685 to 935 rpm. All other rpms require field- supplied drive. Refer to page 27 General Fan Performance Notes. NOTES: 1. Boldface indicates field-supplied drive is requ ired.
37 PERFORMANCE DA T A — 548F (cont) F A N PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 835 to 1085 rpm. All othe r rpms require field- supplied drive. Refer to page 27 General Fan Performance Notes. NOTES: 1. Boldface indicates field-supplied drive is req uired.
38 PERFORMANCE DA T A — 548F (cont) F A N PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 830 to 1 130 rpm. All other rpms require field- supplied drive. Refer to page 27 General Fan Performance Notes. NOTES: 1. Boldface indicates field-supplied drive is requ ired.
39 PERFORMANCE DA T A — 548F (cont) F AN PERFORMANCE — HORIZONT AL DISCHARGE UNITS LEGEND See General Fan Performance not es on p age 27. LEGEND *Motor drive range: 760 to 1000 rpm. All other rpms require a field-supplied drive. See General Fan Performance notes on p age 27.
40 PERFORMANCE DA T A — 548F (cont) F A N PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEGEND See General Fan Performance notes on page 27. LEGEND *Motor drive range: 770 to 1 175 rpm. All other rpms require a field- supplied drive. See General Fan Performance notes on page 27.
41 PERFORMANCE DA T A — 548F (cont) F A N PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 1075 to 1455 rpm. All other rpms require a field- supplied drive. See General Fan Performance notes on page 27. NOTES: 1. Boldface indicates field-supplied drive is req uired.
42 PERFORMANCE DA T A — 548F (cont) F A N PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEGEN D *Motor driv e range: 878 t o 1 19 2 rpm. All oth er rpms requ ire a field- supplied drive. See General Fan Per formance not es on page 27. NOTES: 1.
43 PERFORMANCE DA T A — 548F (cont) F A N PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 1070 to 1460 rpm. All other rpms r equire a field-supplied drive. See General Fan Performance notes on p age 27. NOTES: 1. Boldface indicates field-supplied drive is required .
44 PERFORMANCE DA T A — 548F (cont) F A N PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 590 to 840 rpm. All other rpms require field- supplied drive. Refer to page 27 General Fan Performance Notes. NOTES: 1. Boldface indicates field-supplied drive is requ ired.
45 PERFORMANCE DA T A — 548F (cont) F A N PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 685 to 935 rpm. All other rpms require field- supplied drive. Refer to page 27 General Fan Performance Notes. NOTES: 1. Boldface indicates field-supplied drive is req uired.
46 PERFORMANCE DA T A — 548F (cont) F A N PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 860 to 1080 rpm. All othe r rpms require field- supplied drive. Refer to page 27 General Fan Performance Notes. NOTES: 1. Boldface indicates field-supplied drive is requ ired.
47 PERFORMANCE DA T A — 548F (cont) F A N PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 685 to 935 rpm. All other rpms require field- supplied drive. Refer to page 27 General Fan Performance Notes. NOTES: 1. Boldface indicates field-supplied drive is req uired.
48 PERFORMANCE DA T A — 548F (cont) F A N PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 835 to 1085 rpm. All othe r rpms require field- supplied drive. Refer to page 27 General Fan Performance Notes. NOTES: 1. Boldface indicates field-supplied drive is requ ired.
49 PERFORMANCE DA T A — 548F (cont) F A N PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 830 to 1 130 rpm. All other rpms require field- supplied drive. Refer to General Fan Performance Notes on page 27. NOTES: 1. Boldface indicates field-supplied drive is req uired.
50 PERFORMANCE DA T A — 548F (cont) F AN RPM A T MOTOR PULLEY SETTINGS* — 548F036-120 *Approximate fan rpm shown. †Indicates alternate motor and drive package. **Indicates high-static motor and drive package. ††Indicates standard motor and drive package.
51 PERFORMANCE DA T A — 548F (cont) 0 5 10 15 20 25 30 0. 1 3 0. 2 0 0. 22 0. 25 0. 30 0. 35 0 . 40 0. 4 5 0 . 50 036 - 072 090 - 120 ST A TIC PRESSURE (in.
52 PERFORMANCE DA T A — 548F (cont) ELECTRIC HEA TING CAP ACITIES — 548F036-072 *T wo heater packages required to provide kW indicated. †Use CRSINGLE004A00 for units with convenience outlet. **Use CRSINGLE002A00 for units with convenience outlet.
53 PERFORMANCE DA T A — 548F (cont) ELECTRIC HEA TING CAP ACITIES — 548F090-120 *T wo heater package s required to provide kW indicate d. NOTES: 1. The rated heater voltage is 240, 480, and 575 v . If power distribution volt age varies from rated heater voltage, heater kW wi ll vary accordingly .
54 PERFORMANCE DA T A — 548F (cont) INDOOR-F AN MOTOR PERFORM ANCE — 548F036-120 UNITS LEGEND BHP — Brake Horsepower *Extensive motor and el ectrical testing on these unit s ensures that the full horse- power range of the motors can be utiliz ed with confidence.
55 ELECTRICAL DA T A — 548F 548F036-120 (UNITS WITHOUT EL ECTRICAL CONVENIENCE OUTLET) NOTE: Legend and Note s for Electrical Dat a are on page 57. UNIT 548F NOMINAL V- P H - H z IFM TYPE VOL TAGE R.
56 ELECTRICAL DA T A — 548F (cont) 548F036-120 (UNI TS WI THOUT ELECTRICAL CON VENIENCE OUTLET) (cont) NOTE: Legend and Note s for Electrical Dat a are on page 57.
57 ELECTRICAL DA T A — 548F (cont) 548F036-120 (UNI TS WI THOUT ELECTRICAL CON VENIENCE OUTLET) (cont) LEGEND *Heaters are field insta lled only . †Used to determine minimum disconnect size pe r NEC. **Heater capacity (kW) is based on heater voltage of 208 v , 240 v and 480 v .
58 ELECTRICAL DA T A — 548F (cont) 548F036-120 (UNI TS WI THOUT ELECTRICAL CON VENIENCE OUTLET) (cont) NOTE: Legend and Notes for Electrical Data are on p age 57.
59 ELECTRICAL DA T A — 548F (cont) 548F036-120 (UNI TS WI THOUT ELECTRICAL CON VENIENCE OUTLET) (cont) NOTE: Legend and Notes for Electrical Dat a are on page 57.
60 ELECTRICAL DA T A — 548F (cont) 548F036-120 (UNITS WITH ELECTRICAL CONVENIENCE OUT LET ) NOTE: Legend and Note s for Electrical Dat a are on page 62 .
61 ELECTRICAL DA T A — 548F (cont) 548F036-120 (UNITS WITH ELECTRI CAL CONVENIENCE OU TLET) (cont) NOTE: Legend and Note s for Electrical Dat a are on page 62.
62 ELECTRICAL DA T A — 548F (cont) 548F036-120 (UNITS WITH ELECTRI CAL CONVENIENCE OU TLET) (cont) LEGEND *Heaters are field insta lled on ly . †Used to determine minimum disconnect size pe r NEC. **Heater capacity (kW) is based on heater voltage of 208 v , 240 v and 480 v .
63 ELECTRICAL DA T A — 548F (cont) 548F036-120 (UNITS WITH ELECTRI CAL CONVENIENCE OU TLET) (cont) NOTE: Legend and Note s for Electrical Dat a are on page 64.
64 ELECTRICAL DA T A — 548F (cont) 548F036-120 (UNITS WITH ELECTRI CAL CONVENIENCE OU TLET) (cont) LEGEND *Heaters are f ield installed onl y . †Used to det ermine minimum disconnect size per NEC. **Heater cap acity (kW) is ba sed on heater volt age of 208 v , 240 v , 480 v , and 575 v .
65 TYPICAL WIRING SCHEMA TICS — 548F AW G — American Wire Gage C— Contactor , Compressor CAP — Capacitor CB — Circuit Breaker CH — Crankcase Heater COMP — Compressor Motor DB — Defrost.
66 TYPICAL WIRING SCHEMA TICS — 548F (cont) EconoMi$erIV Wirin g 4 3 5 2 8 6 7 1 10 11 9 12 PINK VIOLET BLACK BLUE YELLOW NOTE 1 NOTE 2 RUN 500 OHM RESISTOR - + OPTIONAL CO SENSOR 4 - 20 mA OUTPUT 50HJ540573 ACTUA TOR ASSEMBL Y RED WHITE ECONOMISER2 PLUG DIRECT DRIVE ACTUA TOR 2 NOTES: 1.
67 TYPICAL WIRING SCHEMA TICS — 548F (cont) C2 FOR 008-014 UNITS LINE SIDE C 11 13 23 23 21 BLU BLU GRA GRA RED GRA RED RED YEL YEL 208-230-1 ONL Y 240V H1 H1 H3 H2 H2 H4 TRAN4 TRAN4 TRAN4 X4 X2 X3 .
68 TYPICAL PIPING AND WIRING — 548F V ertical Discharge Ducting Horizont al Discharge Ducting LEGEND NEC — National Electrical Code 50-1279 50-1297 548F.
69 GUIDE SPECIFICA TIONS — 548F036-120 P ACKAGED ROOFTOP AIR-TO-AIR HEA T PUMP WITH ELECTRIC HEA T OPTION — CONST ANT VOLUME APPLICA TION HV AC GUIDE SPECIFICA TIONS SIZE RANGE: 3 TO 10 T ONS, NOMINAL (COOLING) 34,400 TO 105,000 BTUH, NOMINAL (HEA TING) 4 TO 50 kW NOMINAL (ELECTRIC HEA TING) BRY ANT MODEL NUMBER: 548F P ART 1 — GENERAL 1.
70 GUIDE SPECIFICA TIONS — 548F036-120 (cont) c. E-Coated copper-fin coils shall have a flexibl e epoxy polymer coating uniformly applied to all coil surface areas without material bridging between fins. Coating process shall ensure comp lete coil encapsulation.
71 GUIDE SPECIFICA TIONS — 548F036-120 (cont) f. EconoMi$erIV and EconoMi$er2 shall be equi pped with a barometric relief damp er capable of relieving up to 100% return air . g. Designed to close damper(s) duri ng loss-of- power situations with spring return built into motor .
72 GUIDE SPECIFICA TIONS — 548F036-120 (cont) 12. Power Exhaust Accessory for Econo Mi$erIV or EconoMi$er2: Power exhaust shall b e used in conjuncti on with EconoMi$erIV or EconoMi $er2 to provide system exhaust of up to 100% of return air (vertica l only).
73 PHYSICAL DA T A — 549B036-072 LEGEND *Single phase/three phase. UNIT SIZE 549B 036 048 060 072 NOMINAL CAP AC ITY (tons) 3456 OPERA TING WEIGHT (lb) Unit 550 560 630 630 EconoMi$erIV 50 50 50 50 Roof Curb 11 5 11 5 11 5 11 5 COMPRESSOR Scroll Quantity 1111 Oil (oz) 42 42 53 80 REFRIGERANT TYPE R-22 Operating Charge (lb) 12.
74 PHYSICAL DA T A — 549B090-120 LEGEND BASE UNIT 549B 090 102 120 NOMINAL CAP A CITY (tons) 7 1 / 2 8 1 / 2 10 OPERA TING WEIGHT (lb) Unit 870 1000 1000 EconoMi$erIV 75 75 75 Roof Curb 223 223 223 COMPRESSOR Scroll Quantity 22 2 Oil (oz) (each compr) 57 70 57 REFRIGERANT TYPE R-22 Operati ng Charge ( lb) Circuit 1 9.
75 PHYSICAL DA T A — 549C024-060 LEGEND *Single phase/three phase. UNIT SIZE 549C 024 036 048 060 NOMINAL CAP A CITY (tons) 23 4 5 OPERA TING WEIGHT (lb) Unit 550 550 560 630 EconoMi$erIV 50 50 50 50 Roof Curb 1 15 1 15 1 15 1 15 COMPRESSOR Scroll Quantity 11 1 1 Oil (oz) 80 42 42 53 REFRIGERANT TYPE R–22 Operati ng Charge ( lb) 5.
76 BASE UNIT DIMENS IONS 549B036-072 a50-8054 549B, 549C.
77 BASE UNIT DIMENSIONS (cont) 549B, 549C 549B090-120 a50-8055.
78 BASE UNIT DIMENSIONS (cont) 549B, 549C 549C024-060 a50-8097.
79 ACCESSOR Y DIMENSIONS ROOF CURB ACCESSORY A UNIT SIZE CRRFCURB001A01 1 ′ -2 ″ [356] 549B, 54 9C 024-072 CRRFCURB002A01 2 ′ -0 ″ [610] NOTES: 1. Roof curb accessory is shipped disassembled. 2. Insulated panels. 3. Dimensions in [ ] are in millimeters.
80 ACCESSOR Y DIMENSIONS (cont) CONNECTOR PKG . A CCY . BC D AL T DRAIN HOLE GAS POWER CONTROL ACCESSOR Y POWER CRBTMPWR001A01 2 ′ -8 7 / 16 ″ [827] 1 ′ -10 15 / 16 ″ [583] 1 3 / 4 ″ [44.5] 3 / 4 ″ [19] NPT 3 / 4 ″ [19] NPT 1 / 2 ″ [12.
81 SELECTION PROCEDURE (WITH 549B048 EXAMPLE) I DETERMINE COOLING AND HEA T ING REQUIRE- MENTS A T DESIGN CONDITIONS: Given: Required Cooling Capacity (TC) . . . . . . . . . . 38,000 Btu h Sensible Heat Capacity (SHC). . . . . . . . . . . . 24,000 Btuh Required Heating Capacity .
82 PERFORMANCE DA T A — 549B, 549C COOLING CAP ACITIES 549B036 (3 T on s) Te m p ( F ) Outdoor Entering Air (Edb) Indoor Entering Air — Cfm/BF 900/0.12 1200/0.15 1500/0. 18 Indoor Entering Air — Ewb (F) 72 67 62 72 67 62 72 6 7 62 75 TC 41.2 37.
83 PERFORMANCE DA T A — 549B, 549C (cont) COOLING CAP ACITIES (cont) 549B072 (6 T ons) Te m p ( F ) Outdoor Entering Air (Edb) Indoor Entering Air — Cfm/ BF 1800/0.06 2100/0. 066 2400/0.071 3000/0.088 Indoor Entering Air — Ewb (F) 72 67 62 57 72 67 62 57 72 67 62 57 72 67 62 57 75 TC 83.
84 PERFORMANCE DA T A — 549B, 549C (cont) COOLING CAP ACITIES (cont) LEGEND NOTES: 1. Direct int erpolation is permissible. Do not extrapolate. 2. The fo llowing formulas may be used: t lwb = Wet-bulb temperature corresp onding to en thalpy of air leav- ing indoor coil (h lwb ) Where: h ewb = Enthalpy of air entering indoor coil 3.
85 PERFORMANCE DA T A — 549B, 549C (cont) COOLING CAP ACITIES (cont) LEGEND NOTES: 1. Direct int erpolation is permissible. Do not extrapolate. 2. The f ollowing formulas may be used: t lwb = Wet-bulb temperature corresp onding to en thalpy of air leav- ing indoor coil (h lwb ) Where: h ewb = Enthalpy of air entering indoor coil 3.
86 PERFORMANCE DA T A — 549B, 549C (cont) COOLING CAP ACITIES (cont) LEGEND NOTES: 1. Direct int erpolation is permissible. Do not extrapolate. 2. The fo llowing formulas may be used: t lwb = Wet-bulb temperature corresp onding to en thalpy of air leav- ing indoor coil (h lwb ) Where: h ewb = Enthalpy of air entering indoor coil 3.
87 PERFORMANCE DA T A — 549B, 549C (cont) INST ANT ANEOUS AND INTEGRA TED HEA T ING RA TINGS LEGEND NOTES : 1. indicates integrated ratings. 2. Integr ated cap acity is maximum (instantaneous) capacity less the effect of frost on the outdoor coil and the heat required to defrost it.
88 PERFORMANCE DA T A — 549B, 549C (cont) INST ANT ANEOUS AND INTEGRA TED HEA T ING RA TINGS (cont) LEGEND NOTES : 1. indicates integrated ratings. 2. Integr ated cap acity is maximum (instantaneous) capacity less the effect of frost on the outdoor coil and the heat required to defro st it.
89 PERFORMANCE DA T A — 549B, 549C (cont) INST ANT ANEOUS AND INTEGRA TED HEA T ING RA TINGS (cont) LEGEND NOTES: 1. indicates integrated ratings. 2. Integr ated cap acity is maximum (instantaneous) capacity less the effect of frost on the outdoor coil and the heat required to defrost it.
90 PERFORMANCE DA T A — 549B, 549C (cont) INST ANT ANEOUS AND INTEGRA TED HEA T ING RA TINGS (cont) LEGEND NOTES: 1. indicates integrated ratings. 2. Integr ated cap acity is maximum (instantaneous) capacity less the effect of frost on the outdoor coil and the heat required to defro st it.
91 PERFORMANCE DA T A — 549B, 549C (cont) INST ANT ANEOUS AND INTEGRA TED HEA T ING RA TINGS (cont) LEGEND NOTES: 1. indicates integrated ratings. 2. Integr ated cap acity is maximum (instantaneous) capacity less the effect of frost on the outdoor coil and the heat required to defrost it.
92 PERFORMANCE DA T A — 549B, 549C (cont) INST ANT ANEOUS AND INTEGRA TED HEA T ING RA TINGS (cont) LEGEND NOTES: 1. indicates integrated ratings. 2. Integr ated cap acity is maximum (instantaneous) capacity less the effect of frost on the outdoor coil and the heat required to defro st it.
93 PERFORMANCE DA T A — 549B, 549C (cont) F A N PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 680 to 1044 rpm. All othe r rpms require field- supplied drive. NOTES : 1. Boldface indicates field-supplied drive is req uired.
94 PERFORMANCE DA T A — 549B, 549C (cont) F A N PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 770 to 1 185 rpm. All other rpms require field- supplied drive. NOTES: 1. Boldface indicates field-supplied drive is requ ired.
95 PERFORMANCE DA T A — 549B, 549C (cont) F A N PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 1035 to 1460 rpm. All ot her rpms require field-supplied drive. NOTES: 1. Boldface indicates field-supplied drive is required.
96 PERFORMANCE DA T A — 549B, 549C (cont) F A N PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 1300 to 1685 rpm. All ot her rpms require field-supplied drive. NOTES: 1. Boldface indicates fie ld-supplied drive is required.
97 PERFORMANCE DA T A — 549B, 549C (cont) F A N PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 1300 to 1685 rpm. All other rpms requir e field- supplied drive. NOTES: 1. Boldface indicates field-supplied drive is req uired.
98 PERFORMANCE DA T A — 549B, 549C (cont) F A N PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 730 to 950 rpm. All other rpms require field- supplied drive. NOTES: 1. Boldface indicates field-supplied drive is requ ired. 2.
99 PERFORMANCE DA T A — 549B, 549C (cont) F A N PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 860 to 1080 rpm. All othe r rpms require field- supplied drive. NOTES: 1. Boldface indicates field-supplied drive is req uired.
100 PERFORMANCE DA T A — 549B, 549C (cont) F A N PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 840 to 1085 rpm. All othe r rpms require field- supplied drive. NOTES: 1. Boldface indicates field-supplied drive is requ ired.
101 PERFORMANCE DA T A — 549B, 549C (cont) F A N PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 860 to 1080 rpm. All othe r rpms require field- supplied drive. NOTES: 1. Boldface indicates field-supplied drive is req uired.
102 PERFORMANCE DA T A — 549B, 549C (cont) F A N PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 860 to 1080 rpm. All othe r rpms require field- supplied drive. NOTES: 1. Boldface indicates field-supplied drive is requ ired.
103 PERFORMANCE DA T A — 549B, 549C (cont) F A N PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 922 to 1219 rpm. All othe r rpms require field- supplied drive. NOTES: 1. Boldface indicates field-supplied drive is req uired.
104 PERFORMANCE DA T A — 549B, 549C (cont) F AN PERFORMANCE — HORIZONT AL DISCHARGE UNITS LEGEND *Motor drive range: 639 to 936 rpm. All other rpms require field-supplied drive. NOTES: 1. Boldface indicates field-sup plied drive is required. 2. Maximum continuous bhp is 0.
105 PERFORMANCE DA T A — 549B, 549C (cont) F A N PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 770 to 1 185 rpm. All other rpms require field- supplied drive. NOTES: 1. Boldface indicates field-supplied drive is req uired.
106 PERFORMANCE DA T A — 549B, 549C (cont) F A N PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 1035 to 1460 rpm. All ot her rpms require field-supplied drive. NOTES: 1. Boldface indicates fie ld-supplied drive is required.
107 PERFORMANCE DA T A — 549B, 549C (cont) F A N PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 1300 to 1685 rpm. All ot her rpms require field-supplied drive. NOTES: 1. Boldface indicates field-supplied drive is required.
108 PERFORMANCE DA T A — 549B, 549C (cont) F A N PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 1300 to 1685 rpm. All other rpms requir e field- supplied drive. NOTES: 1. Boldface indicates field-supplied drive is requ ired.
109 PERFORMANCE DA T A — 549B, 549C (cont) F A N PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 730 to 950 rpm. All other rpms require field- supplied drive. NOTES: 1. Boldface indicates field-supplied drive is req uired.
110 PERFORMANCE DA T A — 549B, 549C (cont) F A N PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 860 to 1080 rpm. All othe r rpms require field- supplied drive. NOTES: 1. Boldface indicates field-supplied drive is requ ired.
111 PERFORMANCE DA T A — 549B, 549C (cont) F A N PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 840 to 1085 rpm. All othe r rpms require field- supplied drive. NOTES: 1. Boldface indicates field-supplied drive is req uired.
112 PERFORMANCE DA T A — 549B, 549C (cont) F A N PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 860 to 1080 rpm. All othe r rpms require field- supplied drive. NOTES: 1. Boldface indicates field-supplied drive is requ ired.
113 PERFORMANCE DA T A — 549B, 549C (cont) F A N PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 860 to 1080 rpm. All othe r rpms require field- supplied drive. NOTES: 1. Boldface indicates field-supplied drive is req uired.
114 PERFORMANCE DA T A — 549B, 549C (cont) F A N PERFORMANCE — HORIZONT AL DISCHARGE UNITS (cont) LEGEND *Motor drive range: 922 to 1219 rpm. All othe r rpms require field- supplied drive. NOTES: 1. Boldface indicates field-supplied drive is requ ired.
115 PERFORMANCE DA T A — 549B, 549C (cont) F AN RPM A T MOT OR PULLEY SETTINGS* *Approximate fan rpm shown. †Indicates standard motor and drive package.
116 PERFORMANCE DA T A — 549B, 549C (cont) ACCESSOR Y ELECTRIC HEA TERS ST A TIC PRESSURE* (in. wg) — 549B036-072 AND 549C024-060 LEGEND *The static pressure must be added to externa l static pressure.
117 PERFORMANCE DA T A — 549B, 549C (cont) ELECTRIC HEATING CAPACITIES — 549B036-120 AND 549C024-060 *T wo heater packages required to provide kW indicated. NOTES: 1. The rated heater voltage is 240 and 480 v . If power distribution voltage varies from rated heater voltage, heater kW will var y accordingly .
118 PERFORMANCE DA T A — 549B, 549C (cont) ELECTRIC HEA TIN G CAP ACITIES — 549B036-120 AND 549C0 24-06 0 (cont) *T wo heater packages required to provide kW indicated. NOTES: 1. The rated heater voltage is 240 and 480 v . If power distribution voltage varies from rated heater voltage, heater kW will var y accordingly .
119 ELECTRICAL DA T A — 549B 549B036-120 ST ANDARD MOTOR UNITS WITHOUT ELECTRICAL CONVENIENCE OUTLET See Legend on page 1 14. UNIT 549B NOMINAL VOL T AGE V- P H - H z VOL T AGE RANGE COMPRESSOR OFM .
120 ELECTRICAL DA T A — 549B (cont) 549B036-120 ST ANDARD MOTOR UNITS WITHOUT ELECTRICAL CONVENIENCE OUTLET (cont) LEGEND *Heater capacity (kW) is based on heater voltage of 208 v , 240 v , or 480 v . If power distribution vol tage to unit varies from rated heater volt age, heater kW will vary accordingly .
121 ELECTRICAL DA T A — 549B (cont) 549B036-120 — ST A NDARD MOTOR UNITS WITH ELECTRICAL CONVENIENCE OUTLET See Legend on page 122 . UNIT 549B NOMINAL VOL T AGE V- P H - H z VOL T AGE RANGE COMPRE.
122 ELECTRICAL DA T A — 549B (cont) 549B036-120 — ST ANDARD MOTOR UNITS WITH ELECTRICAL CONVENIENCE OUTLET (cont) LEGEND *Heater capacity (kW) is based on heater voltage of 208 v , 240 v , or 480 v . If power distribution vol tage to unit varies from rated heater volt age, heater kW will vary accordingly .
123 ELECTRICAL DA T A — 549B (cont) 549B036-120 — HIGH-ST A TIC MOTOR UNITS WITHOUT ELECTRICAL CONVENIENCE OUTLET See Legend on page 124 . UNIT 549B NOMINAL VOL T AGE V- P H - H z VOL T AGE RANGE .
124 ELECTRICAL DA T A — 549B (cont) 549B036-120 — HIGH-ST A TIC MOTOR UNITS WITHOUT ELECTRICAL CONVEN IENCE OUTLET (cont) LEGEND *Heater capacity (kW) is based on heater voltage of 208 v , 240 v , or 480 v . If power distribution vol tage to unit varies from rated heater volt age, heater kW will vary accordingly .
125 ELECTRICAL DA T A — 549B (cont) 549B036-120 — HIGH-ST A TIC MOTOR UNITS WITH ELECTRICAL CO NVENIENCE OUTLET See Legend on page 126 . UNIT 549B NOMINAL VOL T AGE V- P H - H z VOL T AGE RANGE CO.
126 ELECTRICAL DA T A — 549B (cont) 549B036-120 — HIGH-ST A TIC MOTOR UNITS WITH ELECTRICAL CONVENIENCE OUTLET (cont) LEGEND *Heater capacity (kW) is based on heater voltage of 208 v , 240 v , or 480 v . If power distribution vol tage to unit varies from rated heater volt age, heater kW will vary accordingly .
127 ELECTRICAL DA T A — 549C 549C024-060 — ST ANDARD MOTOR UNITS WITHOUT ELECTRICAL CONVENIENCE OUTLET See Legend on page 128. UNIT 549C NOMINAL VOL T AG E (V -Ph-Hz) VOL T AGE RANGE COMPRESSOR (e.
128 ELECTRICAL DA T A — 549C (cont) 549C024-060 — HIGH-ST A TIC MOTOR UNITS WITHOUT ELECTRICAL CONVENIENCE OUTLET LEGEND *Heater capacity (kW) is based on heater voltage of 208 v , 240 v , or 480 v . If power distribution vol tage to unit varies from rated heater volt age, heater kW will vary accordingly .
129 ELECTRICAL DA T A — 549C (cont) 549C024-060 — ST A NDARD MOTOR UNITS WITH ELECTRICAL CONVENIENCE OUTLET See Legend on page 130. UNIT 549C NOMINAL VOL T AGE (V -Ph-Hz) VOL T AGE RANGE COMPRESSO.
130 ELECTRICAL DA T A — 549C (cont) 549C036-060 — HIGH-ST A TIC MOTOR UNITS WITH ELECTRICAL CO NVENIENCE OUTLET LEGEND *Heater capacity (kW) is based on heater voltage of 208 v , 240 v , or 480 v . If power distribution vol tage to unit varies from rated heater volt age, heater kW will vary accordingly .
131 TYPICAL WIRING SCHEMA TICS — 549B, 549C LEGEND AW G — American Wire Gage C— Contact or , Compressor CAP — Capacitor CB — Circuit Breaker CLO — Compressor Lockout COMP — Compressor Mo.
132 TYPICAL WIRING SCHEMA TICS — 549B, 549C (cont) EconoMi$erIV Wiring — 549B03 6-120, 549C024-060 LEGEND IAQ — Indoor Air Quality LA — Low Ambient Lockou t Device POT — Potentiometer OA T — Outdoor-Air T emperature RA T — Return-Air T emperature NOTE: Potentiometer Defa ults Settings: Power Exhaust Middle Minimum Pos.
133 TYPICAL WIRING SCHEMA TICS — 549B, 549C (cont) C2 FOR 090-120 UNITS LINE SIDE C 11 13 23 23 21 BLU BLU GRA GRA RED GRA RED RED YEL YEL 208-230-1 ONL Y 240V H1 H1 H3 H2 H2 H4 TRAN4 TRAN4 TRAN4 X4.
134 TYPICAL PIPING AND WIRING — 549B036-120, 549C024-060 V ertical Discharge Ducting Horizontal Discharge Ducting LEGEND NEC — National Electrical Code 50-1262 a50-671 1 549B, 549C.
135 GUIDE SPECIFICA TIONS — 54 9B036-120, 549C 024-060 P ACKAGED ROOFTOP AIR-T O-AIR HEA T PUMP — CONST ANT VOLUME APPLICA TION HV AC GUIDE SPECIFICA TIONS SIZE RANGE: 2 TO 10 T ONS, NOMINAL (COOLING) 34,800 TO 1 14,000 BTUH, NOMINAL (HEA TING) 4 TO 50 kW NOMINAL (ELECTRIC HEA TING) BRY ANT MODEL NUMBER : 549B 549C P ART 1 — GENERAL 1.
136 GUIDE SPECIFICA TIONS — 549B03 6-120, 549C024-060 (cont) 3. Coils: a. Copper-fin coils shall b e constructed of copper fins mechanically bond ed to copper tubes an d copper tube sheets.
137 GUIDE SPECIFICA TIONS — 549B036-120, 549C02 4-060 (cont) 3. Compressor with standard co ntrols shall be capable of operation down to –20 F (in heating mode) am bi- ent outdoor temperature. 4. Unit shall be capable of simultaneous h eating duty and defrost cycle operat ion when using accessory electric heaters.
138 GUIDE SPECIFICA TIONS — 549B03 6-120, 549C024-060 (cont) * 5. 25% T wo-Position Damper: a. T wo-position damper package shall include single blade damper and motor . Admits up to 25% outdoor air . b. Damper shall close up on ind oor fan shutoff.
139 GUIDE SPECIFICA TIONS — 549B036-120, 549C02 4-060 (cont) 23. Indoor Air Quality (CO 2 ) Room Sensor (EconoMi$erIV): Sensor shall have the abilit y to provide demand ve n- tilation control through the EconoMi$erIV . The IAQ sensor shall be wall mou nted with an LED disp lay in parts per million.
140 PHYSICAL DA T A — 542J150,180 LEGEND *Weight of 14 in. roof curb. UNIT SIZE 542J 150 180 203/230 V , 460 V 575 V NOMINAL CAP AC ITY (tons) 12.5 15 OPERA TING WT (lb) Unit 1615 1925 EconoMi$erIV .
141 BASE UNIT DIMENS IONS *Units with alu minum indo or and outdoor coil fins. UNIT 542J MAXIMUM SHIPPING WEIGHT* lb kg 150 1895 860 180 2205 1000 LEGEND UNIT 542J DIMENSIONS XY Ft-in. mm Ft-in. mm 150 3-1 947 3-2 965 180 3-6 1059 3-8 1 105 KO — Knockout NOTES: 1.
142 ACCESSOR Y DIMENSIONS — 542J150,180 PKG NO. REF . CU RB HEIGHT DESCRIPTION CRRFCURB010A00 1 ′ -2 ″ (305) S tandard Curb 14 ″ High CRRFCURB01 1A00 2 ′ -0 ″ (610) S tandard Curb for Units Requiring High Installation CRRFCURB012A00 2 ′ -0 ″ (610) Side Supply and Return Curb for High Installation NOTES: 1.
143 ACCESSOR Y DIMENSIONS — 542J150,180 (cont) CONVENIENCE OUTLET FIELD POWER K.O. CONTROL POWER K.O. 0’-4 1/2" (1 14) 0’-7 3/16" (487) Horizontal Adapter Inst allation — 542J150,180 NOTE: CRRFCURB013A00 is a fully factory preassembled horizontal adapter and includes an insulated tr ansition duct.
144 ACCESSOR Y DIMENSIONS — 542J150,180 (cont) 2'-1 5/8" 2'-2 1/16" 1'-6 5/16" Non-Fused Disc onnect — 542J150 ,180 Power Exhaust — 542J 150,180 a50-6498 48-1 169 5.
145 SELECTION PROCEDURE (WITH 542J180 EXAMPLE) I DETERMINE HEA TING A ND COOLING REQUIRE- MENTS A T DESIGN CONDITIONS: Given: Required Cooling Capacity (TC) . . . . . . . . . 164,000 Btu h Sensible Heat Capacity (SHC). . . . . . . . . . . 120,000 Btuh Required Heating Capacity .
146 PERFORMANCE DA T A — 542J COOLING CAP ACITIES LEGEND NOTES: 1. Direct interpolation is permissible. Do not extrapolate. 2. The following formu l a s ma y be us ed: t lwb = Wet-bulb temperat ure corresponding to enthalpy of air leaving indo or coil (h lwb ) Where: h ewb = Enthalpy of air enter i ng indo or coil 3.
147 PERFORMANCE DA T A — 542J (cont) INTEGRA T ED HEA TING CAP ACITIES LEGEND NOTES: 1. Integrat ed heatin g capacity ra tings show n are not adjusted for the effects of the indoor-fan moto r power and hea t. A ded uction has been made f or defrost - ing the outdoo r coils at temperatures below 40 F .
148 PERFORMANCE DA T A — 542J (cont) F AN PERFORMANC E — VERT ICAL DISCHARGE UNITS LEGEND *S tandard drive ran ge is 891 to 1 179 rpm. Alte rnate drive range is 1227 to 1559. Other rpms may require a field-supplied drive. NOTES: 1. Maximum continuous bhp is 4.
149 PERFORMANCE DA T A — 542J (cont) F A N PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) LEGEND *S tandard drive range is 817 to 1038 rpm. Alternate drive range is 1082 to 1303. Other rpms may require a field-supplied drive. NOTES: 1. Maximum continuous bhp is 5.
150 PERFORMANCE DA T A — 542J (cont) F AN RPM A T MOT OR PULLEY SETTINGS* *Approximate fan rpm shown. †Indicates standard motor and drive package. **Indicates standard motor and alternate drive package.
151 PERFORMANCE DA T A — 542J (cont) ACCESSOR Y/FIOP ST A T IC PRESSURE* (in. wg) — 542J150 ,180 LEGEND *Units with electric heat are not designed to operate at these ranges. NOTES: 1. Heater s are rated at 208/240 v , 480 v , and 600 v . 2. Th e static pressure must be added to external static pressure.
152 PERFORMANCE DA T A — 542J (cont) GL YCOL COIL DA T A* — 542J150,180 LEGEND *This accessory glycol coil is intended for use with a MINIMUM of 25% glycol solution. It IS NOT intended for use solely with water due to freeze-up conditions and the resulting water damage to the condi- tioned space.
153 ELECTRICAL DA T A — 542J ELECTRICAL DA T A — 542J150,180 LEGEND *Heater capacity (kW) is based on heater voltage of 208 v , 240 v , 480 v and 600 v . If power distribution volt age to unit varies from rated h eater voltage, heater kW will vary accordingly .
154 TYPICAL WIRING SCHEMA TIC — 542J 542J180 460 V Sh own a50-7581 542J.
155 TYPICAL WIRING SCHEMA TIC — 542J (cont) LEGEND C— Contactor , Compressor CAP — Capacitor CB — Circuit Breaker CH — Crankcase Heater CLO — Compressor Lockout COMP — Compressor Motor D.
156 TYPICAL WIRING SCHEMA TIC — 542J (cont) 4 3 5 2 8 6 7 1 10 11 9 12 PINK BLACK BLUE NOTE 1 NOTE 2 RUN 500 OHM RESISTOR 50HJ540573 ACTUA TOR ASSEMBL Y RED WHITE ECONOMISER2 PLUG DIRECT DRIVE ACTUA TOR OA T LEGEND OA T — Outdoor Air T emperature Sensor NOTES: 1.
157 TYPICAL PIPING AND WIRING — 542J150,180 LEGEND NOTES: 1. Illustr ation shown is a general guide only and is not in tended to include all details fo r any specific installation.
158 GUIDE SPECIFICA TIONS — 542J150,180 P ACKAGED ROOFTOP AIR-T O-AIR HEA T PUMP — CONST ANT VOLUME APPLICA TION HV AC GUIDE SPECIFICA TIONS SIZE RANGE: 13 AND 15 TONS, NOMINAL (COOLING) 136,000 TO 172,000 BTUH, NOMINAL (HEA TING) 19 TO 50 kW NOMINAL (ELECTRIC HEA TING) BRY ANT MODEL NUMBER : 542J P ART 1 — GENERAL 1.
159 GUIDE SPECIFICA TIONS — 542J150,18 0 (cont) E. Coils: 1. S tandard indoor and outdoor coils shall have copper or aluminum plate fins mechanically bon ded to seamless internally groo ved cop per tubes with all joints brazed. 2. Coils shall be leak tested at 150 psig (1034 kPa) and pressure tested at 450 psig (3103 kPa).
160 GUIDE SPECIFICA TIONS — 542J150,18 0 (cont) J. Operating Ch aracteristics: 1. Unit shall be capable of starting and running at 125 F ambient outdoor temperature, meeting maximum load criteria of ARI S t andard 210/240 or 36 0 at + 10% voltage. 2.
161 GUIDE SPECIFICA TIONS — 542J150,18 0 (cont) 5. Manual Outdoor-Air Damper: Manual damper package shall consist of dampe r , birdscreen, and rainhood which can be preset to admit up to 50% outdoor air for year round ventilation. * 6. 25% T wo-Position Damper: a.
162 GUIDE SPECIFICA TIONS — 542J150,18 0 (cont) 24. Glyco l Coil : Coil shall be 2-row copper tube ( 1 / 2 -in. OD) with aluminum plate fins (15 fins/in.) and 1.625 i n. OD copper headers. Input and o utput connections shall be 1.625 in. ODM copper stubs for sweat connec- tion.
163 CONTROLS SEQUENCE OF OPERA TION — 548F036-120, 549B036 -120, AND 549C024-060 Cooling, Unit s Without Economizer — When thermostat calls for cooling, termi nals G and Y1 are energized.
164 CONTROLS (cont) Continuous Air Circulat io n — T urn unit power on. Set system control at OFF position. Set f an switch at ON position. Th e indoor-fan contactor is energized through the thermostat switch and the indoor fan runs continuousl y .
165 APPLICA TION DA T A 1. OUTDOOR INST ALLA TION — Units approve d for outdoor installation only . 2. DUCTWORK — Secure vertical discharge ductwork to roof curb.
166 APPLICA TION DA T A (cont) CONDENSER COIL PROTECTION APPLICA TIONS LEGEND *See “Selection Guide: Environ mental Corrosion Protection” Cat alog No.
167 APPLICA TION DA T A (cont) IAQ sensors — EconoMi$erIV can be utilized with any IAQ (CO 2 ) sensor that provides a 2 to 10 vdc output. The con- troller will modul ate the outdoor air damper to p rovide venti- lation based on the sensor out put and the IAQ setting of the controller .
168 Outside air enthalpy — EconoMi$ erIV will be enabled based on the outside air enthalpy curves as shown in the EconoMi$erIV Changeover diagram below . The A, B, C, and D curves shown have been in use for many years and have been included as part of the latest ASHRAE 90.
169.
Copyright 2009 Brya nt Heating & Cooling Systems Pr inted in U.S.A. 4/09 Catalog No. PDS548F-36-6 SPECIFICATIONS SUBJEC T TO CHANGE WITHOUT NOTI CE UNIT MUST BE INST ALLED IN A CCORDANCE WITH INST.
An important point after buying a device Bryant 549C (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Bryant 549C 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 549C - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Bryant 549C you will learn all the available features of the product, as well as information on its operation. The information that you get Bryant 549C will certainly help you make a decision on the purchase.
If you already are a holder of Bryant 549C, 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 549C.
However, one of the most important roles played by the user manual is to help in solving problems with Bryant 549C. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bryant 549C 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