Bosch BCA Series Installation Instructions Manual

Bosch BCA Series Installation Instructions Manual

Split system heat pump

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Installation Instructions
Split System Heat Pump
Bosch BCA Series
Ceiling Mounted Air Handler Units | 1.5-3 Ton Capacity | R410A

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Summary of Contents for Bosch BCA Series

  • Page 1 Installation Instructions Split System Heat Pump Bosch BCA Series Ceiling Mounted Air Handler Units | 1.5-3 Ton Capacity | R410A...
  • Page 2 Installation Instructions Bosch BCA Series Air Handler - BTC 761703106 A (03.2023)
  • Page 3: Table Of Contents

    6.3 Required Airflow Range for Normal Operation 7 Ductwork 8 Refrigerant Connections 8.1 Condensate Drain Connection 9 Air Filter (Not Factory-Installed) 10 Maintenance 10.1 Cleaning Precautions 10.2 Regular Maintenance 11 Wiring Diagrams 11.1 Unit Wiring Bosch BCA Series Air Handler - BTC 761703106 A (03.2023)
  • Page 4: Key To Symbols And Safety Instructions

    Consumer service is recommended only for filter cleaning / replacement. Never operate the unit with the access panels removed. Bosch BCA Series Air Handler - BTC 761703106 A (03.2023)
  • Page 5: General

    NFPA 90B standard. WARNING: FIRE HAZARD Keep flammable material and vapors, such as gasoline, away from the air handler. Failure to follow these instructions can result in death, explosion, or fire. Bosch BCA Series Air Handler - BTC 761703106 A (03.2023)
  • Page 6: Dimensional Data

    49-1/4 [1251] 6-1/2 [165] 42 [1067] 46-11/16 [1186] 3/8/ 3/4 [9.5/ 19] 49-1/4 [1251] 49-1/4 [1251] 49-1/4 [1251] 6-1/2 [165] 42 [1067] 46-11/16 [1186] 3/8/ 3/4 [9.5/ 19] Table 1 Bosch BCA Series Air Handler - BTC 761703106 A (03.2023)
  • Page 7: Cased Unit Dimensions

    3/8/ 3/4 [9.5/ 19] 55-3/8 [1407] 11-1/8 [283] 28-3/8 [720] 6-7/8 [174] 42-3/16 [1071] 53-5/16 [1354] 40 [1016] 7 [178] 51 [1295] 15-9/16 [395] 3/8/ 3/4 [9.5/ 19] Table 2 Bosch BCA Series Air Handler - BTC 761703106 A (03.2023)
  • Page 8: Mounting

    For low voltage wire connection location, see Figures 1 and 2. f See wiring diagram located on the bottom of air handler for proper wiring instruction. f After installation, ensure separation of low voltage and high voltage wiring is maintained. Bosch BCA Series Air Handler - BTC 761703106 A (03.2023)
  • Page 9: Airflow Performance

    Airflow data is without filter or electric heat. Electric Heater adds 0.05 in. static pressure. Use wet coil data for determining cooling airflow. Bottom louver panel adds 0.05 in. static pressure. Bosch BCA Series Air Handler - BTC 761703106 A (03.2023)
  • Page 10: Cased Unit

    Airflow data is without filter or electric heat. Electric Heater adds 0.05 in. static pressure. Use wet coil data for determining cooling airflow. Bottom louver panel adds 0.05 in. static pressure. Bosch BCA Series Air Handler - BTC 761703106 A (03.2023) 10 |...
  • Page 11: Required Airflow Range For Normal Operation

    Use wet coil data for determining cooling airflow. Bottom louver panel adds 0.05 in. static pressure. 6.3 Required Airflow Range for Normal Operation SCFM Model 1125 1350 Table 7 Airflow range for normal operation Bosch BCA Series Air Handler - BTC 761703106 A (03.2023) | 11...
  • Page 12: Ductwork

    Secure the supply and return ductwork to the unit flanges, using proper fasteners for the type of duct used and tape the duct-to-unit joint as required to prevent air leaks. Bosch BCA Series Air Handler - BTC 761703106 A (03.2023) 12 |...
  • Page 13: Refrigerant Connections

    Prime all traps, test for leaks, and insulate in areas where sweating of the traps and drain lines could potentially cause water damage.   R efer to local code requirements for usage of auxiliary drain pan and condensate overflow switch. Bosch BCA Series Air Handler - BTC 761703106 A (03.2023) | 13...
  • Page 14: Air Filter (Not Factory-Installed)

    Soot damage may occur with filters in place, when certain types of candles, oil lamps or standing pilots are burned. Bosch BCA Series Air Handler - BTC 761703106 A (03.2023) 14 |...
  • Page 15: Maintenance

    Do not operate the system without a filter in place CAUTION: PERSONAL INJURY When removing filter, do not touch metal parts in the unit. The sharp metal edges can cut you. Bosch BCA Series Air Handler - BTC 761703106 A (03.2023) | 15...
  • Page 16: Wiring Diagrams

    THERMOSTAT For single-stage auxiliary heating (supported by 2H thermostat), jump W1 and W2. INDOOR UNIT OUTDOOR UNIT Figure 5 Thermostat wiring diagram for BOVA 15 with BCA series Bosch BCA Series Air Handler - BTC 761703106 A (03.2023) 16 |...
  • Page 17: Unit Wiring

    6:See Airflow Tables For Tap Usage. 7:N.E.C.Class 2,24volts. 8: The fuse model is 32V/ 3A.Fuse Manufacturer: Littelfuse, fuse part number: 0257003. Figure 6 Indoor Unit Wiring Diagram for 24/36k Models Bosch BCA Series Air Handler - BTC 761703106 A (03.2023) | 17...
  • Page 18 6:See Airflow Tables For Tap Usage. 7:N.E.C.Class 2,24volts. 8: The fuse model is 32V/ 3A.Fuse Manufacturer: Littelfuse, fuse part number: 0257003. Figure 7 Indoor Unit Wiring Diagram for 18/30k Models Bosch BCA Series Air Handler - BTC 761703106 A (03.2023) 18 |...
  • Page 19 Alternatively, please visit our Service & Support webpage to find FAQs, videos, service bulletins, and more; www.boschheatingcooling.com/service or use your cellphone to scan the code below. Figure 9 Bosch BCA Series Air Handler - BTC 761703106 A (03.2023) | 19...
  • Page 20 United States and Canada Bosch Thermotechnology Corp. 65 Grove St. Watertown, MA 02472 Tel: 866-642-3198 Fax: 954-776-5529 www.bosch-thermotechnology.us BTC 761703106 A / 03.2023 Bosch Thermotechnology Corp. reserves the right to make changes without notice due to continuing engineering and technological advances.

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