Bryant 542J User Manual
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Bryant 542J User Manual

Bryant 542J User Manual

Commercial single package rooftop standard and high efficiency heat pump units
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COMMERCIAL
SINGLE PACKAGE ROOFTOP
STANDARD AND HIGH EFFICIENCY
HEAT PUMP UNITS
Standard-efficiency (548F), and high-efficiency (542J and
549B) heat pump units with:
• Pre-painted galvanized steel cabinet for long life and quality
appearance
• Commercial strength base rails with built-in rigging capability
• Convertible design for vertical or horizontal supply/return
• Non-corrosive,
sloped
ASHRAE 62 (IAQ)
• Two-inch return-air filters
• A wide assortment of factory-installed options available,
including high static drives that provide additional perfor-
mance range
• Optional gear driven EconoMi$er with CO
(2 to 10 vac actuator)
• Optional gear-driven EconoMi$er with 4 to 20 mA actuator for
EMS controls
• State-of-the-art defrost system
• Dependable 4-way valve operation
Heat Options
• Field-installed electric heat available
• Glycol hydronic coils
548F036-072
549B036-072
condensate
drain
pan,
ventilation control
2
542J150,180
Every compact one-piece unit arrives fully assembled,
charged, tested, and ready to run.
QUIET, EFFICIENT OPERATION AND DEPENDABLE PER-
FORMANCE — Compressors have vibration isolators for quiet
operation. Efficient fan and motor design permits operation at
meets
low sound levels.
Unit sizes 090-180 offer lower utility costs through part-load
operation using 2 stages of cooling.
Quiet and efficient operation is provided by belt-driven indoor
fans (standard on all units over 5 tons). The belt-driven indoor
fan is equipped with variable-pitch pulleys which allow adjust-
ment within the rpm ranges of the factory-supplied pulleys.
Increased operating efficiency is achieved through computer-
designed coils featuring staggered internally enhanced copper
tubes. Fins are ripple-edged for strength, lanced, and double
waved for higher heat transfer.
Models 542J, 548F, 549B
Sizes 036-180
DuraPac and DuraPac Plus
3 to 15 Tons

FEATURES/BENEFITS

Form No. PDS 548F.36.4
548F090-120
549B090-120

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Summary of Contents for Bryant 542J

  • Page 1: Features/Benefits

    COMMERCIAL SINGLE PACKAGE ROOFTOP STANDARD AND HIGH EFFICIENCY HEAT PUMP UNITS Standard-efficiency (548F), and high-efficiency (542J and 549B) heat pump units with: • Pre-painted galvanized steel cabinet for long life and quality appearance • Commercial strength base rails with built-in rigging capability •...

  • Page 2: Table Of Contents

    In addition, color-coded wires permit easy tracing and diagnostics. PROVEN COMPRESSOR RELIABILITY Design techniques feature computer-programmed balance between compressor, condenser, and evaporator. Bryant- specified hermetic compressors are equipped with compressor overcurrent overtemperature dependability. All units have a fixed-orifice (036-120) or TXV metering...

  • Page 3: Service Options

    OFF position. In addition, the externally mounted handle incorporates power lockout capa- bility to further protect service personnel. INDOOR-AIR QUALITY BEGINS WITH BRYANT ROOFTOPS Sloped condensate pans minimize biological growth in rooftop units in accordance with ASHRAE (American Society of Heat- ing, Refrigeration, and Air Conditioning Engineers) Standard 62.

  • Page 4: Options And Accessories

    100% Open Two-Position Damper (036-120) 25% Open Two-Position Damper Alternate Motors and Drives (548F036-120) Barometric Relief Damper (150 and 180 only, not for use with horizontal roof curb) Convenience Outlet 115V Copper fins indoor and outdoor coil Copper fins outdoor coil Double Wall in unit airstream (150,180) E-Coat outdoor coil (Aluminum Fin) E-Coat outdoor coil (Copper Fin)
  • Page 5 Standard units are designed to operate in cooling at outdoor temperatures down to 25 F (for size 036-120 units) and 40 F (for size 150,180 units). With accessory Motormaster control (outdoor-fan cycling) units can operate at outdoor temperatures down to –20 F. The head pressure controls, which mount in the outdoor section, control the outdoor-fan motor to maintain correct condensing temperature.
  • Page 6 Outdoor coil options are available to match coil construction to site conditions for the best corrosion durability. Pre-coated coils provide protections in mild coastal environments. All copper coils are best suited for moderate coastal applications, while E-coated coils provide superior protection in severe coastal and industrial applications.

  • Page 7: Convenience Outlet

    UNIT-MOUNTED DISCONNECT (sizes 036-120) Factory-installed, internally mounted, NEC (National Electrical Code) and UL (Underwriters’ Laboratories) approved non-fused switch provides unit power shutoff with disconnect lockout protec- tion capability. The switch is accessible from outside the unit. CONVENIENCE OUTLET Factory-installed, internally mounted and externally accessible 115-v female receptacle.
  • Page 8 Outdoor coil hail guard accessory (field installed) protects coils against damage from hail and other flying debris. BRYANT COMMERCIAL PROGRAMMABLE THERMOSTAT Designed specifically for use with Bryant commercial systems, this Bryant programmable thermostat features LED occupied/unoccupied displays and setback mode which can override continuous fan operation.

  • Page 9: Options And Accessories

    INDOOR-FAN HINGED PANEL OPTION (549B036-120) This is included as a factory-installed option. It per- mits quick and simple indoor-fan access. NOTE: Hinged access panels are not available on 548F units. OPTIONS AND ACCESSORIES (cont) FILTER HINGED PANEL OPTION (549B036-120) This is included as a factory-installed option. It permits tool-less filter access.

  • Page 10: Controls

    OPERATING SEQUENCE — 548F036-120 AND 549B036-120 Cooling, Units Without Economizer — When thermostat calls for cooling, terminals G and Y1 are energized. The indoor-fan contactor (IFC), reversing valve solenoid (RVS1) and compres- sor contactor no. 1 (C1) are energized and indoor-fan motor, compressor no.
  • Page 11 NOTE: Compressor no. 2 cannot be energized unless there is a signal for Y2 from the space thermostat. 4. If compressor no. 2 is energized, and the Y2 signal from the thermostat is satisfied, compressor no. 1 and 2 are deener- gized.
  • Page 12 Heating, Units Without Economizer — With unit main power on, set thermostat at HEAT position and desired room tempera- ture. Set fan switch at AUTO. (on demand) or ON (continuous) position. On a drop in room temperature, heating contactor no. 1 in the thermostat closes, energizing heat relay (HR), reversing valve relay (RVR), reversing valve solenoids (RVS1 and RVS2) and compressor no.
  • Page 13 LEGEND Field Wiring Field-Supplied Switch See Legend on page 14. *Included in power exhaust accessory. OPERATING MODES BP — Building Pressurization: Indoor fan on, economizer energized to fully open position, power exhaust disabled. — Evacuation: Indoor fan off, economizer energized to fully open position, power exhaust on (open). SD —...

  • Page 14: Controls

    TRAN — Transformer — Unloader Relay APPLICATION DATA For 549B and 542J units with electric heating, the required minimum cfm is 900 for 549B036; 1200 for 549B048; 1500 for 549B060; 1700 for 549B072; 2250 for 549B090; 3000 for 549B120; 3900 for 542J150; and 4500 for 542J180, with the fol-...

  • Page 15: Application Data

    NOTE: 1. Do not drill in this area, damage to basepan may result in water leak. 2. A 90-degree elbow must be provided in the supply ductwork to comply with UL (Underwriters’ Laboratories) codes for use with electric heat. Concentric Duct Distribution — 542J150,180 APPLICATION DATA (cont) 1'-0 3/16''...

  • Page 16: Typical Piping And Wiring

    TYPICAL PIPING AND WIRING Vertical Discharge Ducting — 548F036-120 and 549B036-120 LEGEND NEC — National Electrical Code Horizontal Discharge Ducting — 548F036-120 and 549B036-120...
  • Page 17 LEGEND NEC — National Electrical Code NOTES: 1. Illustration shown is a general guide only and is not intended for or to include all details for any specific installation. 2. Installation must comply with all applicable codes. 3. A 90-degree elbow must be provided in the supply ductwork to comply with UL (Underwriters’ Laboratories) codes for use with electric heat.

  • Page 18: Model Number Nomenclature

    *Refer to Trade Price Sheets or contact your local representative for specific information regarding which options are available on which units. †Single-phase is only available on 036-060 size units. NOTE: The example model number 548FEX090000AA designates a 7 460-3-60 volt electric heat pump unit with factory-installed economizer. UNIT NOMINAL 548F...

  • Page 19: Physical Data

    UNIT SIZE 548F NOMINAL CAPACITY (tons) OPERATING WEIGHT (lb) Unit Economizer Durablade EconoMi$er Roof Curb* COMPRESSOR Quantity Oil (oz) REFRIGERANT TYPE Operating Charge (lb-oz) Circuit 1 Circuit 2 OUTDOOR COIL Rows...Fins/in. Total Face Area (sq ft) OUTDOOR FAN Nominal Cfm Quantity...Diameter (in.) Motor Hp...Rpm Watts Input (Total)

  • Page 20: Physical Data

    UNIT SIZE 548F NOMINAL CAPACITY (tons) OPERATING WEIGHT (lb) Unit Economizer Durablade EconoMi$er Roof Curb* COMPRESSOR Quantity Oil (oz) REFRIGERANT TYPE Operating Charge (lb-oz) Circuit 1 Circuit 2 OUTDOOR COIL Rows...Fins/in. Total Face Area (sq ft) OUTDOOR FAN Nominal Cfm Quantity...Diameter (in.) Motor Hp...Rpm Watts Input (Total)

  • Page 21: Base Unit Dimensions

    BASE UNIT DIMENSIONS...

  • Page 22: Base Unit Dimensions

    BASE UNIT DIMENSIONS (cont)

  • Page 23: Accessory Dimensions

    CONNECTOR D ALT PKG. ACCY. DRAIN HOLE CRBTMPWR001A00 CRBTMPWR002A00 ″ 1′-9 1′-4″ CRBTMPWR003A00 [551] [406] [44.5] CRBTMPWR004A00 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 ACCESSORY DIMENSIONS POWER...

  • Page 24: Accessory Dimensions

    CONNECTOR PKG. ACCY. CRBTMPWR001A00 CRBTMPWR002A00 ″ ″ 2′-8 1′-10 CRBTMPWR003A00 [827] [583] CRBTMPWR004A00 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.

  • Page 25: Selection Procedure

    SELECTION PROCEDURE (WITH 548F048 EXAMPLE) I DETERMINE COOLING AND HEATING LOADS AT DESIGN CONDITIONS. Given: Required Cooling Capacity (TC) ..38,000 Btuh Sensible Heat Capacity (SHC)... . 24,000 Btuh Required Heating Capacity .

  • Page 26: Performance Data

    548F036 (3 TONS) Indoor Entering Air — Cfm/BF Temp (F) 900/0.10 Outdoor Entering Air Indoor Entering Air — Ewb (F) (Edb) 42.4 39.9 36.5 16.7 22.0 26.8 2.77 2.71 2.62 41.5 38.4 34.8 16.6 21.6 26.2 3.01 2.92 2.80 40.0 36.3 33.0 16.2...
  • Page 27 548F072 (6 TONS) Indoor Entering Air — Cfm/BF Temp (F) 1800/0.10 Outdoor Entering Air Indoor Entering Air — Ewb (F) (Edb) 81.1 77.6 72.1 36.2 46.9 57.0 5.16 5.11 5.01 80.7 75.8 70.0 36.1 46.5 56.4 5.83 5.74 5.65 79.3 73.0 67.3 35.8...

  • Page 28: Instantaneous And Integrated Heating Ratings

    548F120 (10 TONS) Temp (F) 2800/0.11 Outdoor Entering Air (Edb) 127.4 120.4 60.0 76.4 8.30 8.18 124.6 116.2 59.2 74.6 9.24 9.04 121.8 112.0 58.4 73.2 10.34 10.04 116.9 107.2 56.6 71.4 11.38 11.08 112.0 102.0 55.0 69.6 12.58 12.18 106.4 96.8 53.2...
  • Page 29 INSTANTANEOUS AND INTEGRATED HEATING RATINGS (cont) 548F048 Return (Standard (F db) Air) Cap. 22.7 19.3 1200 2.91 Cap. 23.1 19.7 1600 2.87 Cap. 23.4 19.9 2000 2.85 Cap. 20.6 17.5 1200 3.00 Cap. 21.2 18.0 1600 2.99 Cap. 21.6 18.3 2000 2.97 Cap.
  • Page 30 INSTANTANEOUS AND INTEGRATED HEATING RATINGS (cont) 548F072 Return (Standard (F db) Air) Cap. 37.8 32.2 1800 4.72 Cap. 37.9 32.2 2400 4.55 Cap. 38.0 32.3 3000 4.46 Cap. 37.3 31.7 1800 5.32 Cap. 37.5 31.9 2400 5.13 Cap. 37.6 32.0 3000 5.03 Cap.
  • Page 31 INSTANTANEOUS AND INTEGRATED HEATING RATINGS (cont) 548F102 Return (Standard (F db) Air) Cap. 37.0 34.1 47.1 2400 5.30 Cap. 40.7 37.4 51.31 3200 5.88 Cap. 42.6 39.2 53.4 3600 6.29 Cap. 44.8 41.2 55.7 4000 6.78 Cap. 30.0 27.6 39.8 2400 5.38 Cap.
  • Page 32 FAN PERFORMANCE — VERTICAL DISCHARGE UNITS 548F036 (3 TONS) — STANDARD MOTOR (DIRECT DRIVE) Low Speed Airflow 208 v (Cfm) Watts 0.67 0.21 1000 0.60 0.23 1100 0.55 0.24 1200 0.51 0.26 1300 0.45 0.27 1400 0.38 0.29 1500 0.34 0.30 LEGEND —...
  • Page 33 FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) 548F048 (4 TONS) — STANDARD MOTOR (DIRECT DRIVE) Airflow 208 v (Cfm) Watts 1200 0.93 0.41 1300 0.86 0.42 1400 0.78 0.45 1500 0.70 0.47 1600 0.61 0.49 0.51 0.52 1700 1800 0.40 0.54 1900 0.29...
  • Page 34 FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) 548F060 (5 TONS) — STANDARD MOTOR (DIRECT DRIVE) Low Speed Airflow 208 v 230, 460, 575 v (Cfm) Watts 1500 0.88 0.67 1.20 1600 0.68 0.70 1.04 1700 0.51 0.73 0.89 1800 0.35 0.75 0.73 1900...
  • Page 35 FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) 548F060 (5 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* Airflow (Cfm) Watts 1500 0.42 1600 0.49 1700 0.57 1800 0.66 1018 1900 0.76 1057 2000 1008 0.87 1096 2100 1051 0.99 1012 1136 2200 1095 1.12 1145...
  • Page 36 FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) 548F072 (6 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* Airflow (Cfm) Watts 1800 0.66 1063 1900 1023 0.78 1097 2000 1068 0.90 1132 2100 1115 1.00 1180 2200 1159 1.15 1081 1214 2300 1202 1.29 1140 1248...
  • Page 37 FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) 548F090 (7 TONS)* — STANDARD MOTOR AND DRIVE AND ALTERNATE DRIVE (BELT DRIVE) Airflow (Cfm) Watts Rpm 2250 0.52 2300 0.55 2400 0.61 2500 0.67 2550 0.71 2600 0.74 2700 0.81 2800 0.89 2900 0.97 3000...
  • Page 38 FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) 548F090 (7 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* Airflow (Cfm) Watts 2250 0.55 2300 0.57 2400 0.63 2500 0.69 2550 0.72 2600 0.75 2700 0.83 2800 0.90 2900 0.98 3000 1.07 3100 1.16 1047 3200 1.28...
  • Page 39 FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) 548F102 (8 TONS)* — STANDARD MOTOR (BELT DRIVE) Airflow (Cfm) Watts Rpm 2550 0.71 0.94 2600 0.74 0.97 2700 0.81 1.04 2800 0.89 1.12 2900 0.97 1.20 3000 1.06 1.29 3100 1.15 1039 1.39 3200 1.25...
  • Page 40 FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) 548F102 (8 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* Airflow (Cfm) Watts 2550 0.72 2600 0.76 2700 0.83 2800 0.90 2900 0.98 3000 1.07 3100 1.16 1047 3200 1.26 1131 3300 1.36 1216 3400 1.47 1310 3500...
  • Page 41 FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) 548F120 (10 TONS)* Airflow (Cfm Watts Rpm 3000 0.64 3100 0.70 3200 0.75 3300 0.81 3400 0.88 3500 0.94 3600 1.01 3700 1.09 3800 1.16 1047 3900 1.25 1123 4000 1.33 1190 4100 1.42 1267 4200...
  • Page 42 FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS 548F036 (3 TONS) — STANDARD MOTOR (DIRECT DRIVE) Low Speed Airflow 208 v (Cfm) Watts 0.72 0.21 1000 0.67 0.23 1100 0.61 0.24 1200 0.57 0.26 1300 0.51 0.27 1400 0.44 0.29 1500 0.39 0.30 LEGEND —...
  • Page 43 FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont) 548F048 (4 TONS) — STANDARD MOTOR (DIRECT DRIVE) Low Speed Airflow 208 v (Cfm) Watts 1200 0.93 0.41 1300 0.86 0.42 1400 0.78 0.45 1500 0.73 0.47 1600 0.67 0.49 0.60 0.52 1700 1800 0.51 0.54...
  • Page 44 FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont) 548F060 (5 TONS) — STANDARD MOTOR (DIRECT DRIVE) Low Speed Airflow 208 v 230, 460, 575 v (Cfm) Watts 1500 1.01 0.67 1.25 0.71 1600 0.82 0.70 1.09 0.74 1700 0.64 0.73 0.97 0.77 1800 0.44...
  • Page 45 FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont) 548F060 (5 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* Airflow (Cfm) Watts 1500 0.40 1600 0.46 1700 0.54 1800 0.62 1002 1900 0.72 1037 2000 0.82 1072 2100 1024 0.93 1108 2200 1064 1.05 1103 1145 2300...
  • Page 46 FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont) 548F072 (6 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* Airflow (Cfm) Watts 1800 0.73 1047 1900 0.83 1084 2000 1022 0.94 1121 2100 1063 1.10 1140 2200 1104 1.20 1081 1159 2300 1130 1.27 1140 1196 2400...
  • Page 47 FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont) 548F090 (7 TONS) — STANDARD MOTOR AND DRIVE AND ALTERNATE DRIVE (BELT DRIVE)* Airflow (Cfm) Watts 2250 0.43 2300 0.45 2400 0.50 2500 0.54 2550 0.57 2660 0.59 2700 0.65 2800 0.71 2900 0.77 3000 0.83...
  • Page 48 FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont) 548F090 (7 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* Airflow (Cfm) Watts 2250 0.53 2300 0.55 2400 0.60 2500 0.68 2550 0.69 2660 0.72 2700 0.79 2800 0.86 2900 0.94 3000 1.02 3100 1.11 1006 3200 1.21...
  • Page 49 FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont) 548F102 (8 TONS) — STANDARD MOTOR (BELT DRIVE)* Airflow (Cfm) Watts 2550 0.57 2660 0.59 2700 0.65 2800 0.71 2900 0.77 3000 0.83 3100 0.90 3200 0.96 3300 1.03 3400 1.10 3500 1.17 1056 3600 1.25...
  • Page 50 FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont) 548F102 (8 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* Airflow (Cfm) Watts 2550 0.69 2660 0.72 2700 0.79 2800 0.86 2900 0.94 3000 1.02 3100 1.11 1006 3200 1.21 1089 3300 1.31 1173 3400 1.41 1258 3500...
  • Page 51 2. Values include losses for filters, unit casing, and wet coils. See page 52 for accessory/FIOP (factory-installed option) static pres- sure information. 3. Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative for details. 4. Interpolation is permissible. Do not extrapolate. (Belt drive units only.) Watts 1.03...
  • Page 52 ACCESSORY/FIOP STATIC PRESSURE* (in. wg) — 548F036-072 COMPONENT 1200 1 Heater Module 0.05 0.07 2 Heater Modules 0.15 0.16 Durablade Economizer 0.05 0.05 Accessory EconoMi$er 0.05 0.09 LEGEND FIOP — Factory-Installed Option *The static pressure must be added to external static pressure. The sum and the evaporator entering-air cfm should then be used in conjunction with the Fan Performance tables to deter- mine blower rpm and watts.
  • Page 53 OPTIONAL POWER EXHAUST POWER REQUIREMENTS UNIT AMPS @ 230 V SIZE (2 Fans Running) 230 VAC 548F036-072 1.40 Amps @ 60 Hz 15.0 amps 548F090-120 3.04 Amps @ 60 Hz MOCP — Maximum Overcurrent Protection 2500 2000 1500 1000 STATIC PRESSURE (in. wg) EconoMi$er Power Exhaust Performance (548F036-072) PERFORMANCE DATA (cont)

  • Page 54: Multiplication Factors

    ACCESSORY UNIT VOLTAGE ACCESSORY HEATER 548F (60 Hz) PART NUMBER CRHEATER---A00 208/230 (single phase) 10.5 13.0* 102* 208/230 (3 phase) 10.5 16.0 (3 phase) 11.5 14.0 208/230 13.0* 102* (single phase) 17.4* 103* 21.0* 104* 208/230 (3 phase) 16.0 21.0* 104* 11.5 (3 phase)
  • Page 55 INDOOR-FAN MOTOR PERFORMANCE — 548F UNITS UNIT INDOOR-FAN UNIT 548F MOTOR VOLTAGE 208/230 Standard 208/230 Alternate 208/230 High Static 208/230 Standard 208/230 Alternate 208/230 High Static 208/230 Standard 208/230 Alternate 208/230 High Static 208/230 Standard 208/230 High Static 208/230 Standard, Alternate 208/230 High Static...

  • Page 56: Electrical Data

    UNITS WITHOUT ELECTRICAL CONVENIENCE OUTLET VOLTAGE RANGE UNIT NOMINAL 548F V-PH-Hz TYPE 208/230-1-60 208/230-3-60 (3 Tons) HIGH-STATIC 460-3-60 HIGH-STATIC 575-3-60 HIGH-STATIC 208/230-1-60 (4 Tons) 208/230-3-60 HIGH-STATIC NOTE: Legend and Notes for Electrical Data are on page 64. ELECTRICAL DATA COMPRESSOR ELECTRIC (each) HEAT*...
  • Page 57 UNITS WITHOUT ELECTRICAL CONVENIENCE OUTLET (cont) VOLTAGE RANGE UNIT NOMINAL 548F V-PH-Hz TYPE Min Max 460-3-60 (4 Tons) (cont) HIGH-STATIC 575-3-60 HIGH-STATIC 208/230-1-60 208/230-3-60 (5 Tons) HIGH-STATIC 460-3-60 HIGH-STATIC 575-3-60 HIGH-STATIC NOTE: Legend and Notes for Electrical Data are on page 64. ELECTRICAL DATA (cont) COMPRESSOR ELECTRIC...
  • Page 58 UNITS WITHOUT ELECTRICAL CONVENIENCE OUTLET (cont) VOLTAGE RANGE UNIT NOMINAL 548F V-PH-Hz TYPE Min Max 208/230-3-60 HIGH-STATIC (6 Tons) 460-3-60 HIGH-STATIC 575-3-60 HIGH-STATIC 208/230-3-60 HIGH-STATIC Tons) 460-3-60 HIGH-STATIC 575-3-60 HIGH-STATIC NOTE: Legend and Notes for Electrical Data are on page 64. ELECTRICAL DATA (cont) COMPRESSOR ELECTRIC HEAT*...
  • Page 59 UNITS WITHOUT ELECTRICAL CONVENIENCE OUTLET (cont) VOLTAGE RANGE UNIT NOMINAL 548F V-PH-Hz TYPE 208/230-3-60 HIGH-STATIC Tons) 460-3-60 HIGH-STATIC 575-3-60 HIGH-STATIC 208/230-3-60 HIGH-STATIC (10 Tons) 460-3-60 HIGH-STATIC 575-3-60 HIGH-STATIC NOTE: Legend and Notes for Electrical Data are on page 64. ELECTRICAL DATA (cont) COMPRESSOR ELECTRIC HEAT* (each)
  • Page 60 VOLTAGE RANGE UNIT NOMINAL 548F V-PH-Hz TYPE 208/230-1-60 208/230-3-60 (3 Tons) HIGH-STATIC 460-3-60 HIGH-STATIC 575-3-60 HIGH-STATIC 208/230-1-60 (4 Tons) 208/230-3-60 HIGH-STATIC NOTE: Legend and Notes for Electrical Data are on page 64. ELECTRICAL DATA (cont) UNITS WITH ELECTRICAL CONVENIENCE OUTLET COMPRESSOR ELECTRIC (each)
  • Page 61 UNITS WITH ELECTRICAL CONVENIENCE OUTLET (cont) VOLTAGE RANGE UNIT NOMINAL 548F V-PH-Hz TYPE Min Max 460-3-60 (4 Tons) (cont) HIGH-STATIC 575-3-60 HIGH-STATIC 208/230-1-60 208/230-3-60 (5 Tons) HIGH-STATIC 460-3-60 HIGH-STATIC 575-3-60 HIGH-STATIC NOTE: Legend and Notes for Electrical Data are on page 64. ELECTRICAL DATA (cont) COMPRESSOR ELECTRIC...
  • Page 62 UNITS WITH ELECTRICAL CONVENIENCE OUTLET (cont) VOLTAGE RANGE UNIT NOMINAL 548F V-PH-Hz TYPE Min Max 208/230-3-60 HIGH-STATIC (6 Tons) 460-3-60 HIGH-STATIC 575-3-60 HIGH-STATIC 208/230-3-60 HIGH-STATIC Tons) 460-3-60 HIGH-STATIC 575-3-60 HIGH-STATIC NOTE: Legend and Notes for Electrical Data are on page 64. ELECTRICAL DATA (cont) COMPRESSOR ELECTRIC...
  • Page 63 UNITS WITH ELECTRICAL CONVENIENCE OUTLET (cont) VOLTAGE RANGE UNIT NOMINAL 548F V-PH-Hz TYPE 208/230-3-60 HIGH-STATIC Tons) 460-3-60 HIGH-STATIC 575-3-60 HIGH-STATIC 208/230-3-60 HIGH-STATIC (10 Tons) 460-3-60 HIGH-STATIC 575-3-60 HIGH-STATIC NOTE: Legend and Notes for Electrical Data are on page 64. ELECTRICAL DATA (cont) COMPRESSOR ELECTRIC (each)

  • Page 64: Electrical Data

    LEGEND — Full Load Amps HACR — Heating, Air Conditioning and Refrigeration — Indoor Fan Motor — Locked Rotor Amps MCA — Minimum Circuit Amps MOCP — Maximum Overcurrent Protection — National Electrical Code — Outdoor Fan Motor — Rated Load Amps *Heaters are field installed only.

  • Page 65: Typical Wiring Schematic

    LEGEND — Adjustable Heat Anticipator AWG — American Wire Gage — Contactor, Compressor — Capacitor — Circuit Breaker — Cooling Capacitor — Crankcase Heater COMP — Compressor Motor — Diode — Defrost Board — Defrost Thermostat — Enthalpy Control ECON — Economizer —...

  • Page 66: Typical Wiring Schematic

    24VAC ACTUATOR 24COM 50DK509044 CL01 CL02 WHT/YEL BLK/YEL WHT/GRY 3-PIN BLK/GRY MOLEX NOT USED CONNECTOR CABLE TYPICAL WIRING SCHEMATIC (cont) 7 1/2 AND 8 1/2 TON UNITS ONLY 50DK508234 +15V +15V CO2 + CO2 (COM) REM POT FIELD INSTALLED OPTION 12-PIN FEMALE MOLEX...

  • Page 67: Model Number Nomenclature

    549B – Single-Packaged High-Efficiency Heat Pump Unit Voltage Designation E – 460-3-60 J – 208/230-1-60 P – 208/230-3-60 X – No Heat Installed (Field-installed electric heaters available) Nominal Tons 036 – 3 048 – 4 060 – 5 072 – 6 090 –...

  • Page 68: Physical Data

    BASE UNIT 549B NOMINAL CAPACITY (tons) OPERATING WEIGHT (lb) Unit Durablade Economizer EconoMi$er Roof Curb COMPRESSOR Quantity Oil (oz) REFRIGERANT TYPE Operating Charge (lb) OUTDOOR FAN Quantity...Diameter (in.) Nominal Cfm Motor Hp...Rpm OUTDOOR COIL Rows...Fins/in. Total Face Area (sq ft) INDOOR FAN Size (in.) Type Drive...
  • Page 69 BASE UNIT 549B NOMINAL CAPACITY (tons) OPERATING WEIGHT (lb) Unit Durablade Economizer EconoMi$er Roof Curb COMPRESSOR Quantity Oil (oz) (each compr) REFRIGERANT TYPE Operating Charge (lb) Circuit 1 Circuit 2 OUTDOOR FAN Quantity...Diameter (in.) Nominal Cfm Motor Hp...Rpm OUTDOOR COIL Rows...Fins/in.

  • Page 70: Base Unit Dimensions

    BASE UNIT DIMENSIONS...
  • Page 71 BASE UNIT DIMENSIONS (cont)

  • Page 72: Accessory Dimensions

    CONNECTOR D ALT PKG. ACCY. DRAIN HOLE CRBTMPWR001A00 CRBTMPWR002A00 ″ 1′-9 1′-4″ CRBTMPWR003A00 [551] [406] [44.5] CRBTMPWR004A00 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 ACCESSORY DIMENSIONS POWER...

  • Page 73: Accessory Dimensions

    CONNECTOR PKG. ACCY. CRBTMPWR001A00 CRBTMPWR002A00 ″ ″ 2′-8 1′-10 CRBTMPWR003A00 [827] [583] CRBTMPWR004A00 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.

  • Page 74: Selection Procedure

    SELECTION PROCEDURE (WITH 549B048 EXAMPLE) I DETERMINE COOLING AND HEATING REQUIRE- MENTS AT DESIGN CONDITIONS. Given: Required Cooling Capacity (TC)... 38,000 Btuh Sensible Heat Capacity (SHC) ... . 24,000 Btuh Required Heating Capacity.

  • Page 75: Performance Data

    549B036 (3 Tons) Temp (F) 900/0.13 Outdoor Entering Air (Edb) 41.7 38.4 34.1 20.3 25.0 29.0 2.22 2.17 2.13 40.5 37.2 32.4 19.9 24.6 28.1 2.49 2.45 2.40 39.1 35.9 30.6 19.4 24.1 27.2 2.80 2.75 2.69 37.6 33.9 28.8 18.8 23.3 26.3...
  • Page 76 549B072 (6 Tons) Indoor Entering Air — Cfm/Bf Temp (F) 1800/0.06 2100/0.066 Outdoor Entering Air Indoor Entering Air — Ewb (F) (Edb) 83.2 77.6 71.6 67.9 84.7 79.8 73.6 71.5 85.9 81.0 75.0 74.3 88.4 82.9 78.4 78.3 SHC 39.7 50.4 60.6 66.6 41.6 54.3 65.9 70.1 43.4 57.6 70.6 72.8 47.2 63.9 76.9 76.8 4.90 4.78 4.69 4.63 4.94 4.84 4.71 4.69 4.97 4.86 4.74 4.73 5.04 4.91 4.81 4.81 81.5 75.5 69.0 64.8 83.2 77.3 71.1 69.4 84.5 78.5 72.7 72.2 86.2 80.8 76.5 76.5 SHC 39.2 49.8 59.6 63.6 41.4 53.5 65.0 68.0 43.3 56.9 69.7 70.8 47.1 64.1 75.0 75.0...
  • Page 77 INSTANTANEOUS AND INTEGRATED HEATING RATINGS 549B036 (3 Tons) Return (Standard –20 –10 (F db) Air) Cap. 10.9 10.0 13.7 12.6 16.6 15.3 19.7 18.1 22.1 20.1 26.8 23.5 30.9 30.9 34.0 34.0 35.3 35.3 40.7 40.7 1.97 2.06 Cap. 11.4 10.4 14.2 13.0 17.1 15.7 20.1 18.4 22.5 20.5 27.3 24.0 31.5 31.5 34.7 34.7 36.1 36.1 41.7 41.7 1200 2.02 2.09...
  • Page 78 INSTANTANEOUS AND INTEGRATED HEATING RATINGS (cont) 549B060 (5 Tons) Return (Standard –20 –10 (F db) Air) Cap. 19.4 17.8 24.8 22.8 29.7 27.3 34.7 31.8 38.5 35.1 46.8 41.0 53.9 53.9 59.5 59.5 62.1 62.1 71.9 71.9 1500 3.28 3.53 Cap.
  • Page 79 INSTANTANEOUS AND INTEGRATED HEATING RATINGS (cont) 549B090 (7 Tons) Return (Standard –20 –10 (F db) Air) Cap. 31.4 28.8 37.8 34.9 44.5 41.0 52.1 47.8 57.6 52.5 70.2 61.5 79.9 79.9 87.9 87.9 91.6 91.6 105.9 105.9 2250 5.32 5.47 Cap.
  • Page 80 FAN PERFORMANCE — VERTICAL DISCHARGE UNITS 549B036 (3 TONS) — STANDARD MOTOR (BELT DRIVE) Airflow (Cfm) 0.12 1000 0.19 1100 0.22 1200 0.26 1300 0.29 1400 0.35 1500 0.42 549B036 (3 TONS) — STANDARD MOTOR (BELT DRIVE) (cont) Airflow (Cfm) 0.39 0.44 1039...
  • Page 81 FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) 549B060 (5 TONS) — STANDARD MOTOR (BELT DRIVE) Airflow (Cfm) 1500 0.33 1600 0.39 1700 0.46 1800 0.55 1900 0.64 2000 0.74 2100 0.85 2200 1021 0.97 2300 1064 1.10 2400 1107 1.24 2500 1150 1.39...
  • Page 82 FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) 549B090 (7 TONS) — STANDARD MOTOR (BELT DRIVE) Airflow (Cfm) 2250 0.52 2300 0.55 2400 0.61 2500 0.67 2550 0.71 2600 0.74 2700 0.81 2800 0.89 2900 0.97 3000 1.06 3100 1.15 3200 1.25 3300 1.35...
  • Page 83 FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont) 549B120 (10 TONS) — STANDARD MOTOR (BELT DRIVE) Airflow (Cfm) 3000 0.46 3100 0.57 3200 0.62 3300 0.69 3400 0.77 3500 0.86 3600 0.98 3700 1.12 3800 1.20 3900 1.28 4000 1.37 4100 1.46 4200 1.56...
  • Page 84 FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS 549B036 (3 TONS) — STANDARD MOTOR (BELT DRIVE) Airflow (Cfm) 0.06 1000 0.09 1100 0.13 1200 0.16 1300 0.20 1400 0.29 1500 0.33 549B036 (3 TONS) — STANDARD MOTOR (BELT DRIVE) (cont) Airflow (Cfm) 0.32 0.35 1000...
  • Page 85 FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont) 549B060 (5 TONS) — STANDARD MOTOR (BELT DRIVE) Airflow (Cfm) 1500 0.31 1600 0.36 1700 0.40 1800 0.45 1900 0.45 2000 0.60 2100 0.69 2200 0.78 2300 0.89 2400 1.00 2500 1031 1.13 549B060 (5 TONS) —...
  • Page 86 FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont) 549B090 (7 TONS) — STANDARD MOTOR (BELT DRIVE) Airflow (Cfm) 2250 0.43 2300 0.45 2400 0.50 2500 0.54 2550 0.57 2600 0.59 2700 0.65 2800 0.71 2900 0.77 3000 0.83 3100 0.90 3200 0.96 3300 1.03...
  • Page 87 2. Values include losses for filters, unit casing, and wet coils. See page 88 for accessory/FIOP static pressure information. 3. Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative for details. 4. Interpolation is permissible. Do not extrapolate. 1.05 1.24...
  • Page 88 ACCESSORY/FIOP STATIC PRESSURE* (in. wg) — 549B036-072 COMPONENT 1200 1 Heater Module 0.05 0.07 2 Heater Modules 0.15 0.16 Durablade Economizer 0.05 0.05 Accessory EconoMi$er 0.05 0.09 LEGEND FIOP — Factory-Installed Option *The static pressure must be added to external static pressure. The sum and the indoor entering-air cfm should then be used in conjunction with the Fan Performance tables to deter- mine blower rpm and watts.
  • Page 89 OPTIONAL POWER EXHAUST POWER REQUIREMENTS UNIT AMPS @ 230 V SIZE (2 Fans Running) 549B036-072 1.40 Amps @ 60 Hz 549B090,120 3.04 Amps @ 60 Hz MOCP — Maximum Overcurrent Protection 2500 2000 1500 1000 STATIC PRESSURE (in. wg) EconoMi$er Power Exhaust Performance (549B036-072) UNIT UNIT...

  • Page 90: Performance Data

    ELECTRIC HEATING CAPACITIES ACCESSORY UNIT VOLTAGE ACCESSORY HEATER 549B (60 Hz) PART NUMBER CRHEATER---A00 208/230 (single phase) 10.5 13.0* 102* 208/230 (3 phase) 10.5 16.0 (3 phase) 11.5 14.0 208/230 13.0* 102* (single phase) 17.4* 103* 21.0* 104* 208/230 (3 phase) 16.0 21.0* 104*...

  • Page 91: Electrical Data

    UNITS WITHOUT ELECTRICAL CONVENIENCE OUTLET VOLTAGE NOMINAL COMPRESSOR OFM IFM UNIT RANGE VOLTAGE 549B (V-Ph-Hz) Min Max 208/230-1-60 187 254 16.0 (3 Tons) 208/230-3-60 187 254 10.3 460-3-60 414 508 208/230-1-60 187 254 23.7 (4 Tons) 208/230-3-60 187 254 13.5 460-3-60 414 508 208/230-1-60 187 254...
  • Page 92 UNITS WITHOUT ELECTRICAL CONVENIENCE OUTLET (cont) VOLTAGE NOMINAL UNIT RANGE VOLTAGE 549B (V-Ph-Hz) Min Max 208/230-3-60 187 254 090*** Tons) 460-3-60 414 508 208/230-3-60 187 254 120*** (10 Tons) 460-3-60 414 508 LEGEND AND NOTES FOR ELECTRICAL DATA TABLES LEGEND —...
  • Page 93 UNITS WITH ELECTRICAL CONVENIENCE OUTLET VOLTAGE NOMINAL COMPRESSOR OFM IFM UNIT RANGE VOLTAGE 549B (V-Ph-Hz) Min Max 208/230-1-60 187 16.0 (3 Tons) 208/230-3-60 187 10.3 460-3-60 414 508 208/230-1-60 187 254 23.7 (4 Tons) 208/230-3-60 187 13.5 460-3-60 208/230-1-60 187 254 28.8 208/230-3-60 187 254 17.3...

  • Page 94: Electrical Data

    UNITS WITH ELECTRICAL CONVENIENCE OUTLET (cont) VOLTAGE NOMINAL COMPRESSOR OFM IFM UNIT RANGE VOLTAGE 549B (V-Ph-Hz) Min Max 208/230-3-60 187 254 090*** 1/ 2 Tons) 460-3-60 414 508 208/230-3-60 187 254 120*** (10 Tons) 460-3-60 414 508 LEGEND AND NOTES FOR ELECTRICAL DATA TABLES LEGEND —...

  • Page 95: Typical Wiring Schematic

    TYPICAL WIRING SCHEMATIC 549B036-120...
  • Page 96 IMPORTANT: Consult unit wiring label for actual wiring schematic. — Adjustable Heat Anticipator AWG — American Wire Gage — Contactor, Compressor — Capacitor — Circuit Breaker — Cooling Compensator — Compressor Lockout COMP — Compressor Motor — Defrost Board — Defrost Thermostat ECON —...

  • Page 97: Guide Specifications - 548F And 549B036-120 Units

    GUIDE SPECIFICATIONS — 548F AND 549B036-120 UNITS PACKAGED ROOFTOP AIR-TO-AIR HEAT PUMP — CONSTANT VOLUME APPLICATION HVAC GUIDE SPECIFICATIONS SIZE RANGE: 3 TO 10 TONS, NOMINAL (COOLING) BRYANT MODEL NUMBER: 548F, 549B PART 1 — General 1.01 SYSTEM DESCRIPTION Outdoor rooftop mounted, electrically controlled air-to-air...
  • Page 98 GUIDE SPECIFICATIONS — 548F AND 549B036-120 UNITS (cont) b. E-Coated aluminum-fin coils shall have a flexible epoxy polymer coating uniformly applied to all coil surface areas without material bridging between fins. Coating process shall ensure complete coil encapsulation. Color shall be high gloss black with gloss —...
  • Page 99 M. Special Features: Certain features are not applicable when the features designated * are specified. For assistance in amending the specifications, contact your local Bryant Sales Office. 1. Roof Curbs (Horizontal and Vertical): a. Formed galvanized steel with wood nailer strip and shall be capable of supporting entire unit weight.

  • Page 100: Guide Specifications — 548F And 549B036-120 Units

    GUIDE SPECIFICATIONS — 548F AND 549B036-120 UNITS (cont) 15. Compressor Cycle Delay: Unit shall be prevented from restarting for minimum of 5 min. after shutdown. *16. Thru-the-Bottom Utility Connectors: Kit shall provide connectors to permit electrical con- nections to be brought to the unit through the basepan.

  • Page 101: Model Number Nomenclature

    MODEL NUMBER NOMENCLATURE — 542J150,180 UNITS 542J – High-Efficiency Rooftop Units Electric Heat Pumps Voltage Designation E – 460-3-60 P – 208/230-3-60 Heat Type X – No Heat Installed Nominal Cooling Capacity 150 – 12 Tons 180 – 15 Tons Electric Heaters 000 –...

  • Page 102: Ari Capacity Ratings

    ESP — External Static Pressure IPLV — Integrated Part-Load Value — Kilowatts — Wet Bulb *Air-Conditioning and Refrigeration Institute. NOTES: 542J units are rated in accordance with ARI Standard 340. WEIGHT DISTRIBUTION AND CENTER OF GRAVITY WEIGHT UNIT 542J 1615...

  • Page 103: Physical Data

    UNIT 542J OPERATING WT (lb) Unit Electric Heat EconoMi$er Roof Curb* COMPRESSOR Model Number (Quantity) Cylinders Capacity Staging (%) Oil Change (oz) REFRIGERANT TYPE Charge (lb) System 1 System 2 OUTDOOR COIL Rows Fins/in. Total Face Area (sq ft) OUTDOOR FAN Nominal Cfm Number...Diameter (in.)

  • Page 104: Base Unit Dimensions

    BASE UNIT DIMENSIONS *Units with aluminum indoor and outdoor coil fins. UNIT 542J LEGEND KO — Knockout NOTES: 1. Dimensions in [ ] are in millimeters. Center of gravity. Direction of airflow. 4. Ductwork to be attached to accessory roof curb only.

  • Page 105: Accessory Dimensions

    ACCESSORY DIMENSIONS...
  • Page 106 ACCESSORY DIMENSIONS (cont) NOTE: CRRFCURB013A00 is a fully factory pre-assembled horizontal adapter which includes an insulated high static regain transition duct and substantially improves fan static performance. Power exhaust and baro- metric relief accessories cannot be used with factory pre-assembled, high static, horizontal adapter.
  • Page 107 ACCESSORY DIMENSIONS (cont) Non-Fused Disconnect — 542J150,180 2'-1 5/8" 2'-2 1/16" 1'-6 5/16" Power Exhaust — 542J150,180...

  • Page 108: Selection Procedure

    SELECTION PROCEDURE (WITH 542J180 EXAMPLE) I DETERMINE HEATING AND COOLING REQUIRE- MENTS AT DESIGN CONDITIONS. Given: Required Cooling Capacity (TC)..164,000 Btuh Sensible Heat Capacity (SHC) ... 120,000 Btuh Required Heating Capacity.

  • Page 109: Performance Data

    542J150 Temp (F) 3750/0.04 Air Ent Outdoor Coil 167.0 154.0 140.0 79.6 100.0 120.0 10.00 9.77 9.50 160.0 148.0 133.0 77.6 98.9 118.0 11.10 10.80 10.40 155.0 141.0 127.0 76.1 96.3 115.0 12.20 11.80 11.40 147.0 133.0 120.0 73.6 93.3 112.0 13.20 12.70...
  • Page 110 542J150 Return –10 Temp Cap. Cap. Cap. F (db) 40.4 7.81 53.0 8.35 65.6 3750 37.7 8.19 49.8 8.85 61.9 35.4 8.41 47.1 9.15 58.8 40.3 7.98 53.9 8.49 67.5 4500 36.7 8.38 49.8 9.00 62.9 33.2 8.64 46.4 9.32 59.6 41.0 8.11...
  • Page 111 2. Values include losses for filters, unit casing, and wet coils. See page 112 for accessory/FIOP static pressure information. 3. Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative for details. 4. Interpolation is permissible. Do not extrapolate.
  • Page 112 Electric Heaters EconoMi$er Glycol Coil LEGEND FIOP — Factory-Installed Option *Units with electric heat are not designed to operate at these ranges. FAN RPM AT MOTOR PULLEY SETTINGS* — 542J150,180 UNIT 542J 150† — 150** — 180† — 180** —...
  • Page 113 NOTE: ∆P is the fluid pressure in ft of head. PERFORMANCE DATA (cont) NOTE: The CRRFCURB013A00 horizontal supply/return adapter accessory improves 542J fan performance by increasing external static pressure by amount shown above. Horizontal Supply/Return Fan Performance ELECTRIC HEATING CAPACITIES — 542J150,180...

  • Page 114: Performance Data

    INDOOR-FAN MOTOR PERFORMANCE — 542J150,180 UNIT UNIT 542J VOLTAGE 208/230 208/230 LEGEND Bhp — Brake Horsepower COMPRESSOR VOLTAGE RANGE UNIT VOLTAGE No. 1 542J (3 PH, 60 Hz) Min Max RLA LRA RLA LRA 208/230 39.7 19.9 208/230 28.2 14.1 LEGEND —...

  • Page 115: Typical Wiring Schematic

    TYPICAL WIRING SCHEMATIC 542J180, 460-3-60 Shown...
  • Page 116 TYPICAL WIRING SCHEMATIC (cont) LEGEND AND NOTES FOR TYPICAL WIRING SCHEMATIC — Adjustable Heat Anticipator BKR W/AT — Breaks with Amp Turns — Contactor, Compressor — Capacitor — Circuit Breaker — Cooling Compensator — Crankcase Heater — Compressor Lockout COMP —...

  • Page 117: Typical Wiring Schematic

    NOTES: 1. If the non-fused disconnect Service Option is ordered for size 150,180 units, the Non-Fused Disconnect will be factory-installed. 2. The Disconnect takes the place of TB-1 as shown on the unit wiring diagram label and the component arrangement label. Optional Non-Fused Disconnect —...

  • Page 118: Guide Specifications - 542J150,180

    HVAC GUIDE SPECIFICATIONS SIZE RANGE: 12 to 15 TONS, NOMINAL (COOLING) 136,000 to 172,000 BTUH, NOMINAL (INPUT HEATING) BRYANT MODEL NUMBER: 542J PART 1 — GENERAL 1.01 SYSTEM DESCRIPTION Outdoor rooftop mounted, electrically controlled air-to-air heat pump unit utilizing reciprocating, semi-hermetic com- pressor(s) for cooling duty and electric resistance coils for heating duty.
  • Page 119 GUIDE SPECIFICATIONS — 542J150,180 UNITS (cont) b. E-Coated aluminum-fin coils shall have a flexible epoxy polymer coating uniformly applied to all coil surface areas without material bridging between fins. Coating process shall ensure complete coil encapsulation. Color shall be high gloss black with gloss —...
  • Page 120 M. Special Features: Certain features are not applicable when the features designated * are specified. For assistance in amending the specifications, contact your local Bryant Sales Office. 1. Roof Curbs (Horizontal and Vertical): a. Formed galvanized steel with wood nailer strip and shall be capable of supporting entire unit weight.

  • Page 121: Guide Specifications — 542J150,180

    GUIDE SPECIFICATIONS — 542J150,180 UNITS (cont) 15. Power Exhaust Accessory: Power exhaust shall be used to provide system exhaust of up to 100% of return air. The power exhaust is a field-installed accessory (vertical applications). 16. Outdoor Air Enthalpy Sensor: The outdoor air enthalpy sensor shall be used with the EconoMi$er device to provide single enthalpy control.
  • Page 122 106,113 Heating ratings Instantaneous and integrated heating ratings 548F036-120 28-31 549B036-120 77-79 Integrated heating ratings 542J150,180 Copyright 2002 Bryant Heating & Cooling Systems INDEX Indoor fan motor performance 542J150,180 548F036-120 549B036-120 Internal unit design Minimum ambient cooling operating temperature Model number nomenclature...

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