Bryant 551A operation manual Unit Maximum Dimensions Shipping Weight, Ft-in 155, 180, 240

Page 3

NOTE: For preassembled horizontal adapter roof curb part no. CRRFCURB013A00, the accessory kit includes a factory-designed, high-static, regain transition duct. For horizontal curb part no. CRRFCURB012A00, a field-supplied transition duct is required.

Fig. 2 — Horizontal Supply Roof Curb and Horizontal

Adapter Roof Curb

UNIT

MAXIMUM

 

 

DIMENSIONS

 

 

SHIPPING WEIGHT

 

A

 

B

551A

 

 

 

 

 

lb

kg

ft-in.

 

 

mm

ft-in.

 

mm

155

 

1625

737

6-111/

2

 

2121

4- 0

 

1219

180

 

1700

771

6-111/

2

 

2121

3-10

 

1168

240

 

1800

816

6-111/

2

 

2121

3- 7

 

1092

NOTES:

1.Dimensions in ( ) are in millimeters.

2.Refer to Fig. 4 and 5 for unit operating weights.

3.Remove boards at ends of unit and runners prior to rigging.

4.Rig by inserting hooks into unit base rails as shown. Use corner post from packaging to protect coil from damage. Use bumper boards for spreader bars.

5.Weights do not include optional EconoMi$er. Add 80 lb (36 kg) for EconoMi$er weight.

6.Weights given are for aluminum evaporator and condenser coil plate fins. Weights include electric heat.

7.Add 75 lb (34 kg) for crating on 551A155 and 180 units. Add 135 lb (61 kg) for crating on 551A240 units.

8.Add 150 lb (68 kg) for copper condenser coil. Add 280 lb (127 kg) for copper condenser and evaporator coils.

CAUTION: All panels must be in place when rigging.

Fig. 3 — Rigging Details

3

Image 3
Contents II. RIG and Place Unit ContentsSafety Considerations Installation Provide Unit SupportRoof Curb Details 240 Unit Maximum Dimensions Shipping WeightFt-in 155 1801039 1054 559 180 1650 748 36.3 375 170 449 204 452 Unit STD Unit ECONOMI$ER Corner DIM a DIM B DIM C Weight551A Ft-in 155 1575 714 36.3 407 185 375 170 383 174 410Base Unit Dimensions, 551A240 155 180 240 Physical Data551A180 and 240 Shown 551A155 Shown III. Field Fabricate DuctworkIV. Make Unit Duct Connections Trap Condensate DrainField Control Wiring Unit VoltageNEC FLA LRA MCA MOCP† Electrical DataPER Electric Resistance Heater DataUnit Heater Maximum Minimum Heater AmpsManual Outdoor-Air Damper VII. Make OUTDOOR-AIR Inlet AdjustmentsOptional Non-Fused Disconnect Optional Convenience OutletUnit Stage Heat Anticipator SettingsVIII. Install OUTDOOR-AIR Hood Outdoor Air Enthalpy Sensor InstallationDischarge Air Thermistor DAT CO2 Control SetupMechanical Cooling Lockout Dry Bulb Changeover Set UpEconoMi$er Switchover Control Strategy Default Potentiometer SettingsVentilation Air Minimum Position Set Up IX. Install ALL AccessoriesMotormaster I Control Installation 551A155 and 180 Only Wind Baffle Details Motormaster III Control Installation 551A240 OnlyLPS LlsvSTART-UP III. Refrigerant Service PortsInternal Wiring XI. Accessory ECONOMI$ER AdjustmentUnits With Perfect Humidity Dehumidification Package Freeze Protection ThermostatsFan Performance 551A155 With Standard Indoor Fan Motor Cfm Rpm Watts Bhp Watts BhpWatts Bhp Rpm 3750 5700 551A180 15 Tons4800 5100500 551A240 20 TonsWatts Bhp Rpm Bhp Rpm Watts 000Drop Accessory/FIOP Static Pressure in. wgEvaporator Fan Motor Specifications Fan RPM at Motor Pulley SettingsService Cleaning IV. Evaporator FAN Service and ReplacementII. Lubrication Belt Tension Adjustment Evaporator-Fan Pulley Alignment AdjustmentVII. ECONOMI$ER Adjustment VI. CONDENSER-FAN AdjustmentXI. Protective Devices VIII. Power FailureIX. Refrigerant Charge Filter DrierXIII. Control Circuit XIV. Replacement PartsXVI. Optional Hinged Access Doors XII. Relief DevicesTypical Wiring Schematic 551A180, 460v Shown Typical Component Arrangement 551A180 Shown Troubleshooting Cooling Service AnalysisProblem Cause Remedy Problem Potential Cause Remedy EconoMi$er TroubleshootingPage Temperatures ElectricalGeneral
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