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Bosch IDS BOVA15 Installation Instructions Manual
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Bosch IDS BOVA15 Installation Instructions Manual

Split system heat pump
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Installation Instructions
Split System Heat Pump
Bosch IDS BOVA15
IDS Light Condensing Units | 2-5 Ton Capacity | R410A

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Summary of Contents for Bosch IDS BOVA15

  • Page 1 Installation Instructions Split System Heat Pump Bosch IDS BOVA15 IDS Light Condensing Units | 2-5 Ton Capacity | R410A...
  • Page 2 Installation Instructions Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 3: Table Of Contents

    10.1 Open the Service Valves 17.2 Maintenance – Pre-Season Inspection 11 Electrical - Low Voltage 11.1 Low Voltage Maximum Wire Length 11.2 Low Voltage Hook-Up Diagrams 11.3 Thermostat Wiring Diagrams Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 4: Key To Symbols And Safety Instructions

    This information is intended for use by individuals possessing adequate backgrounds of electrical and mechanical experience. Any attempt to repair a central air conditioning product may result in personal injury and/or property damage. Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)
  • Page 5 P65Warnings.ca.gov. CAUTION: INDOOR UNIT REQUIRED  The indoor units must be matched with TXV. The model of TXV can be changed according to the system capacity. Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 6: Unit Location Considerations

    Figure 2 7/8 Std. 3/4 Opt. 3/8 * 1 1/8 Opt. Table 2 * Standard line size is recommended; N/A: Application not recommended; Refrigerant charge: refer to Sec. 14 Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 7: Location Restrictions

    Min. 12" to Shrubbery Min. 24" to  Approximately every three months, wash the outdoor coil and any Wall exposed cabinet surfaces. Access Panel Figure 4 Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 8: Unit Preparation

    1/4” Χ 1-1/2” Hex washer head concrete screws (3/16” pilot hole needed. Pilot hole should be 1/4” deeper than the fastener embedment) Figure 8 Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 9: Refrigerant Line Considerations

    The Suction Line must always be insulated. DO NOT allow the Liquid Line and Suction Line to come in direct (metal to metal) contact. Suction Line Liquid Line Insulation Figure 10 Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 10: Refrigerant Line Routing

    Secure Suction Line using isolators every 8 ft. Secure Liquid Line directly to Suction Line using tape, wire, or other appropriate method every 8 ft. Isolation On Walls Figure 12 1 0 | Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 11: Refrigerant Line Brazing

    Remove caps or plugs. Use a deburring tool to deburr the pipe ends. Clean both internal and external surfaces of the tubing using an emery cloth. Figure 14 | 11 Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)
  • Page 12 Continue the dry nitrogen purge. Do not remove the wet rag until all brazing is completed. Remove the wet rag before stopping the dry nitrogen purge. 1 2 | Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 13: Refrigerant Line Leak Check

    Once evacuation is complete, turn off the vacuum pump and micron gauge, and close the valves on the manifold gauge set. 1 MIN. Figure 22 Figure 20 | 13 Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 14: Service Valves

    Replace the Valve Stem Cap to prevent leaks. Tighten finger tight plus an additional 1/6 turn. Repeat STEPS 1 - 3 for Liquid Service Valve. 1 4 | Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 15: Electrical - Low Voltage

    Figure 25 the first stage electric auxiliary heat. Figures 25-30 refer to thermostat wiring diagrams for the BOVA15 and BVA15 manufacturer matched indoor and outdoor systems. | 15 Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)
  • Page 16 Installation Instructions Figure 26 Thermostat Wiring Diagram for BOVA15/BVA15 Matched System 1 6 | Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 17: Electrical - High Voltage

    12.2 High Voltage Disconnect Switch Install a separate disconnect switch at the outdoor unit. Field supplied fl exible electrical conduit must be used for high voltage wiring. Figure 27 | 17 Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 18: Start Up

    Upon initial unit installation, wait one (1) hour before starting the unit if compressor crankcase heater is used and the outdoor ambient temperature is below 70 ºF. 60 MIN. Figure 31 1 8 | Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 19: System Charge Adjustment

    "Force Mode". Outdoor temperature must be between 55°F and 120°F Ensure Sections 7,8,9,10,11,12 and 13 have been completed. with indoor temperature kept between 70°F and 80°F. | 19 Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)
  • Page 20  Measured Liquid Line Pressure = _______ PSIG  Calculate subcooling value = ________ºF Table 8 R-410A Refrigerant chart - Final Subcooling Insulation Figure 36 2 0 | Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)
  • Page 21  Wait 5 minutes for the system condition to stabilize between adjustments. When the subcooling matches the design value (Table 9), the system is properly charged. | 21 Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 22: System Operation And Troubleshooting

    20 minutes.  Defrost will terminate once outdoor coil temperature (T3) reaches 64°F for a period of 1 minute or defrost time has exceeded 8 minutes. 2 2 | Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 23: Compressor Crankcase Heater Description

    Compressor stops running for 3 hours (outdoor ambient temperature T4 < 41°F OR compressor discharge temperature T5 < 53.6°F).  CCH operation de-energizes: Compressor discharge temperature T5 ≥ 60.8°F. Compressor start running. | 23 Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 24: Fault Code Table

    Hz), the unit will continue to run but in a limited condition. The only exception is when the system is in defrost mode, which only displays "dF" (without any numerical digits following). 2 4 | Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 25: Parameter Point Check Table

    AC voltage of power input (V) DC voltage (V) of compressor input Continuous running time of the compressor (min) Last fault code Software version Remark“--” Table 14 | 25 Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 26: Control Board Overviews

    SW4 Dip SWITCH:Control logic settings SW6 Dip SWITCH: Select capacity DC motor port Compressor: W port Compressor: V port Compressor: U port Power input Power input Reserve Figure 40 2 6 | Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)
  • Page 27 SW4 Dip SWITCH:Control logic settings SW6 Dip SWITCH: Select capacity DC motor port Compressor: W port Compressor: V port Compressor: U port Power input Power input Reserve Figure 41 | 27 Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 28: Error Code Troubleshooting

    Replace T4 sensor T4 sensor in the range of Table there another Remove all other heat source near heat sources T3/T4? Replace control board Figure 42 2 8 | Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)
  • Page 29 (U2,V2,W2) (CN32) >36Ω, and/or Replace motor the resistance between compressor winding and ground >10MΩ? Did the Replace control board fail? control board Restart system Figure 45 | 29 Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)
  • Page 30 Is the main control chip properly installed? the connection Does main control chip Power off and correct have poor contact? the contact Replace control board Figure 48 3 0 | Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)
  • Page 31 Tighten the screws and/or or is there enough apply silicone grease Restart system silicone grease? Figure 49 Did the control Replace control board board fail? Restart system Figure 50 | 31 Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)
  • Page 32 Figure 52 Is the system Adjust refrigerant overcharged? Is the high pressure switch Replace high connected correctly and pressure switch resistance ≥1Ω? Restart system Figure 51 3 2 | Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)
  • Page 33 >11.5A for 2/3T and >15.5A for Is the compressor current >11.5A 4/5T? Replace compressor for 2/3T and >15.5A for 4/5T? Restart system Restart System Figure 53 Figure 54 | 33 Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)
  • Page 34 T3 and T5 sensors Ensure they are correctly placed after properly placed service? Is the Adjust or replace EEV/TXV working EEV/TXV normally? Restart System Figure 55 3 4 | Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)
  • Page 35 Table Is the Replace compressor current >11.5A compressor for 2/3T and >15.5A for 4/5T? Restart System Figure 57 Replace control board Figure 58 | 35 Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)
  • Page 36 T4 sensor seated diagram for correctly? correct connection Is the resistance of T4 Replace T4 sensor in the range of Table 15? Restart system Figure 59 3 6 | Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 37: Temperature And Resistance Relationship Tables (For Sensors)

    11.987 2.99 71.1 1.574 0.82 23.9 10.527 2.83 73.9 1.416 0.75 26.7 9.265 2.67 76.7 1.276 0.68 29.4 8.172 2.52 Table 15 for T3, T4, T3L | 37 Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 38: Temperature And Resistance Relationship Tables (For T5 Sensor)

    129.4 1.767 0.90 51.7 18.47 3.48 132.2 1.651 0.85 54.4 16.708 3.37 135.0 1.544 0.80 57.2 15.085 3.26 137.8 1.446 0.76 Table 16 for T5 3 8 | Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 39: Wiring Diagram

    Continuous running time of the compressor(min) Crankcase heater Forced cooling/heating PRESS Last fault code FORCE (Charge mode) COMP. Compressor Software version PRESS Forced defrosting Remark"--" TEMP. Temprature Figure 60 | 39 Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 40: Bova60-15 (4/5 Ton)

    Continuous running time of the compressor(min) Crankcase heater Forced cooling/heating PRESS Last fault code FORCE (Charge mode) COMP. Compressor Software version PRESS Forced defrosting Remark"--" TEMP. Temprature Figure 61 4 0 | Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)

  • Page 41: Care And Maintenance

    Do not use benzene, paint thinner, polishing powder or other solvents to clean the unit. Make sure nothing is blocking all air inlets and outlets and clean the coils as necessary Figure 62 | 41 Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)
  • Page 42 Installation Instructions NOTES: 4 2 | Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)
  • Page 43 Installation Instructions NOTES: | 43 Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)
  • Page 44 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 761701317 A / 02.2022 Bosch Thermotechnology Corp. reserves the right to make changes without notice due to continuing engineering and technological advances.

This manual is also suitable for:

Ids bova24-15Ids bova36-15Ids bova60-15

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