Bosch BVA-60WN1-M20 Service Manual
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Bosch BVA-60WN1-M20 Service Manual

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Summary of Contents for Bosch BVA-60WN1-M20

  • Page 1 2.0 IDS Service Manual IDS Premium 20 SEER System BVA20 BOVA20 Tech Support 866-642-3198 BoschHeatingAndCooling.com...
  • Page 2 Bosch IDS 2.0 Split System Heat Pump Condensing Units Up to 20.5 SEER 2-3-4-5 Ton Capacity R410A Service Manual...

  • Page 3: Table Of Contents

    Service Manual Bosch IDS 2.0 | 3 Table of Contents 1 Key to Symbols and Safety Instructions 12 Diagnosis and Troubleshooting 1.1 Key to Symbols 12.1 Control Board Component Layout 1.2 Safety 12.1.1 BOVA36 Outdoor Unit Control Board 12.1.2 BOVA60 Outdoor Unit Control Board 2 Nomenclature 12.1.3 BVA2.0 Indoor Unit Control Board...

  • Page 4: Key To Symbols And Safety Instructions

    4 | Bosch IDS 2.0 Service Manual 1 Key to Symbols and Safety Instructions 1.2 Safety Please read before proceeding 1.1 Key to Symbols Warnings NOTICE: MAINTENANCE  Please refer to your Installation, Operation and Maintenance Warnings in this document are identifi ed by a Manual for details on maintenance requirements.

  • Page 5: Bosch Ids 2.0 | 5

    Service Manual Bosch IDS 2.0 | 5 WARNING: HAZARDOUS VOLTAGE CAUTION: GROUNDING REQUIRED  Failure to follow this warning could result in property  Failure to inspect or use proper service tools may result damage, severe personal injury, or death.

  • Page 6: Power Supply

    6 | Bosch IDS 2.0 Service Manual 2 Nomenclature 2.1 Bosch IDS BVA2.0 V A – 24 W N1 – M 20 Efficiency 20: 20 SEER Power Supply M: 208/230V 1Ph, 60Hz Refrigerant N1: R410A Function Type W: Wired Controller Nominal Capacity 24: 24×1,000BTU/H...
  • Page 7 Service Manual Bosch IDS 2.0 | 7 2.2 Bosch IDS BOVA2.0 B OV A – 36 H N1 – M 20 G Compressor Brand G: GMCC Efficiency 20: 20 SEER Power Supply M: 208/230V 1Ph, 60Hz Refrigerant N1: R410A D-DC Inverter...

  • Page 8: Models & Part Numbers

    8 | Bosch IDS 2.0 Service Manual 3 Models & Part Numbers Bosch Part Number Bosch Model Number 8733952437 BOVA-36HDN1-M20G 8733952438 BOVA-60HDN1-M20G 8733952439 BVA-24WN1-M20 8733952440 BVA-36WN1-M20 8733952441 BVA-48WN1-M20 8733952442 BVA-60WN1-M20 Table 1 07.2021 | Bosch Thermotechnology Corp. Data subject to change...

  • Page 9: Dimensions

    Service Manual Bosch IDS 2.0 | 9 4 Dimensions 4.1 Bosch IDS BVA2.0 25” CLEARANCE IS REQUIRED IN THE FRONT OF THE UNIT FOR FILTER AND COIL MAINTENANCE. ELECTRICAL CONNECTIONS THROUGH TOP OR EITHER SIDE SUPPLY AIR HIGH VOLTAGE CONNECTION 1- ",...

  • Page 10: Schematic Diagram

    2 6 | Bosch IDS BVA 2.0 Installation Instructions DETAILED REFERENCE CAUTION: MANUAL INSTRUCTIONS SCHEMATIC DIAGRAM NOT SUITABLE FOR USE ON SYSTEMS EXCEEDING 150V TO GROUND. Y1 OR G Y1+Y2 OR W SEE RATING PLATE FOR VOLT&HERTZ FIELD POWER WIRING...

  • Page 11: Airflow Performance

    Installation Instructions Bosch IDS BVA 2.0 | 15 5 Airfl ow Performance shown in the table below in order to ensure proper operation of both cooling, Airfl ow performance data is based on cooling performance with a coil and no fi lter heating, and electric heating operation.
  • Page 12 1 0 | Bosch IDS 2.0 Service Manual 4.2 Bosch IDS BOVA2.0 AIR DISCHARGE: ALLOW 60" MINIMUM CLEARANCE. AIR INLET LOUVERED PANELS: ALLOW 12" MINIMUM CLEARANCE ALLOW A MINIMUM OF 12" CLEARANCE ON ONE SIDE OF ACCESS PANEL TO A WALL AND A MINIMUM OF 24"...

  • Page 13: Bosch Ids Bva2.0

    Service Manual Bosch IDS 2.0 | 11 5 AHRI 210/240 Performance Data 5.1 Bosch IDS BOVA2.0 Indoor Unit Model Cooling Capacity (BTU/h) Heating Capacity Outdoor Unit Model Furnace Model Coils/Air Handlers Total EER² SEER¹ HSPF³ Low⁴ BOVA-36HDN1-M20G BVA-24WN1-M20 24000 20.5 24000 10.5...

  • Page 14: Product Specifi Cations

    1 2 | Bosch IDS 2.0 Service Manual 6 Product Specifi cations 6.1 Bosch IDS BVA2.0 BVA024 BVA036 BVA048 BVA060 Cooling Capacity Nominal Cooling (BTU/h) 24000 34600 47500 54500 Nominal Heating (BTU/h) 24000 34200 48000 56000 Blower Diameter (mm) 10-5/8" (270) 10-63/64"...

  • Page 15: Bosch Ids Bova2.0

    Service Manual Bosch IDS 2.0 | 13 6.2 Bosch IDS BOVA2.0 BOVA 36 BOVA 60 Cooling Capacity Nominal Cooling (BTU/h) 34,600 54,500 Nominal Heating (BTU/h) 34,200 56,000 Decibels([dB(A)] Max @ 100% load Min @ min load Compressor Condenser Fan Motor...

  • Page 16: Extended Performance Data

    1 4 | Bosch IDS 2.0 Service Manual 7 Extended Performance Data 7.1 Outdoor Unit (BOVA) + Indoor Unit (BVA) – Cooling Mode BOVA 36 + BVA 24 For Cooling IWB (°F) Indoor Outdoor Airfl ow (CFM) DB (°F) IDB (°F) 17.8...
  • Page 17 Service Manual Bosch IDS 2.0 | 15 BOVA 36 + BVA 24 For Cooling IWB (°F) Indoor Outdoor Airfl ow (CFM) DB (°F) IDB (°F) 22.2 22.5 23.0 23.2 23.0 23.2 23.5 23.7 24.5 24.7 25.0 23.3 31.6 31.9 32.2 0.96...
  • Page 18 1 6 | Bosch IDS 2.0 Service Manual BOVA 36 + BVA 36 For Cooling IWB (°F) Indoor Outdoor Airfl ow (CFM) DB (°F) IDB (°F) 22.1 22.3 22.8 23.1 22.8 23.1 23.3 23.6 24.4 24.6 24.8 25.1 30.1 30.4 30.7...
  • Page 19 Service Manual Bosch IDS 2.0 | 17 BOVA 36 + BVA 36 For Cooling IWB (°F) Indoor Outdoor Airfl ow (CFM) DB (°F) IDB (°F) 31.3 31.6 32.3 32.7 32.3 32.7 33.0 33.4 34.5 34.8 35.2 35.5 42.8 43.1 43.5 0.89...
  • Page 20 1 8 | Bosch IDS 2.0 Service Manual BOVA 60 +BVA 48 For Cooling IWB (°F) Indoor Outdoor Airfl ow (CFM) DB (°F) IDB (°F) 39.0 39.4 40.3 40.7 40.3 40.7 41.2 41.6 43.0 43.4 43.8 44.1 52.2 52.6 53.6 0.84...
  • Page 21 Service Manual Bosch IDS 2.0 | 19 BOVA 60 +BVA 48 For Cooling IWB (°F) Indoor Outdoor Airfl ow (CFM) DB (°F) IDB (°F) 46.4 47.0 48.0 48.5 48.0 48.5 49.0 49.6 51.3 51.7 52.2 52.6 61.7 62.2 62.6 0.90 0.94...
  • Page 22 2 0 | Bosch IDS 2.0 Service Manual BOVA 60 +BVA 60 For Cooling IWB (°F) Indoor Outdoor Airfl ow (CFM) DB (°F) IDB (°F) 39.1 39.6 40.4 40.9 40.4 40.9 41.3 41.8 43.2 43.6 44.0 44.4 51.9 52.3 53.3 0.65...
  • Page 23 Service Manual Bosch IDS 2.0 | 21 BOVA 60 +BVA 60 For Cooling IWB (°F) Indoor Outdoor Airfl ow (CFM) DB (°F) IDB (°F) 48.7 49.3 50.4 50.9 50.4 50.9 51.5 52.0 53.9 54.3 54.8 55.2 64.2 64.6 65.0 0.73 0.78...

  • Page 24: Outdoor Unit (Bova) + Indoor Unit (Bva) - Heating Mode

    2 2 | Bosch IDS 2.0 Service Manual 7.2 Outdoor Unit (BOVA) + Indoor Unit (BVA) – Heating Mode BOVA 36 + BVA 24 For Heating Airfl ow (CFM) (°F) (°F) 26.8 26.8 26.8 26.8 26.8 26.7 26.7 26.5 26.5 25.8...
  • Page 25 Service Manual Bosch IDS 2.0 | 23 BOVA 36+BVA 36 For Heating Airfl ow (CFM) (°F) (°F) 30.1 30.1 30.1 30.1 30.1 29.8 29.7 29.7 29.7 29.7 29.7 28.1 26.1 24.2 22.3 20.5 18.9 1.08 1.43 1.58 1.71 1.86 1.98 2.16...
  • Page 26 2 4 | Bosch IDS 2.0 Service Manual BOVA 60+BVA 48 For Heating Airfl ow (CFM) (°F) (°F) 53.4 53.4 53.4 53.3 53.3 53.2 52.9 52.7 48.7 45.7 42.9 41.5 39.7 38.3 36.5 34.7 32.9 2.11 2.57 2.81 3.05 3.31 3.57...
  • Page 27 Service Manual Bosch IDS 2.0 | 25 BOVA 60+BVA 60 For Heating Airfl ow (CFM) (°F) (°F) 56.7 56.7 56.7 56.6 56.6 56.3 56.1 56.1 55.5 51.9 49.3 45.1 42.3 40.2 40.3 36.3 33.2 2.20 2.58 2.83 3.09 3.36 3.59 3.92...

  • Page 28: Layout Of Functional Components

    2 6 | Bosch IDS 2.0 Service Manual 8 Layout of Functional Components 8.1 3 Ton Fan motor Condenser Compressor Accumulator Heat Sink Note: T3 not shown in figure, but is located on the condenser coil. Please reference Table 18 for abbrevia on and parts descrip on.

  • Page 29: Ton

    Service Manual Bosch IDS 2.0 | 27 8.2 5 Ton Fan motor Compressor Accumulator Condenser Heat sink Note: Please reference Table 18 for abbrevia on and parts descrip on. Figure 6 Bosch Thermotechnology Corp. | 07.2021 Data subject to change...

  • Page 30: Refrigerant Flow Diagrams

    2 8 | Bosch IDS 2.0 Service Manual 9 Refrigerant Flow Diagrams 9.1 Cooling Operation FAN ON Liquid Service Valve Strainer Strainer Bi-flow Filter Drier Evaporator Condenser Coil Check valve Coil Gauge port of heat pump Pressure Transducer Reversing Suction Service Valve...

  • Page 31: Heating Operation

    Service Manual Bosch IDS 2.0 | 29 9.2 Heating Operation FAN ON Strainer Strainer Liquid Service Valve Bi-flow Filter Drier Condenser Evaporator Coil Check valve Coil Gauge port of heat pump Pressure Reversing Transducer Suction Service Valve Valve Indoor unit Thermostat "ON"...
  • Page 32 3 0 | Bosch IDS 2.0 Service Manual No. in diagram Abbreviation Part Description Major functions The inverter compressor’s speed is controlled based on coil pressures monitored by the INV Comp. Inverter Compressor unit's pressure transducer (PT) Compressor discharge Used for compressor discharge temperature protection and EEV control in heating mode.

  • Page 33: Control

    Service Manual Bosch IDS 2.0 | 31 10 Control Defrost Termination Settings (SW5) off ers diff erent defrost termination options for enhanced defrost for diff erent geographical and outdoor conditions. 10.1 Crankcase Heater Control The crankcase heater only operates when the compressor is OFF (i.e. during standby).

  • Page 34: Force Mode Operation

    3 2 | Bosch IDS 2.0 Service Manual 10.2.2 Force Mode Operation 10.2.3 Indoor Fan Motor Function System operation and function Force mode is also referred to as charge mode in cooling. The LED display will show “|― ― **” during force mode (** shows the frequency of compressor). The unit will only Two Stage Fan Control go into force mode if manually placed in this mode by the user.

  • Page 35: Field Settings

    Service Manual Bosch IDS 2.0 | 33 11 Field Settings 11.2 Initial Start-up Checklist 11.1 Initial Unit Preparation and Installation Checklist WARNING: WARNING:  This checklist is NOT to be used in place of the Installation, Operation, and Maintenance Manual. Please refer to ...

  • Page 36: When To Change Outdoor Unit Dip Switch Settings

    3 4 | Bosch IDS 2.0 Service Manual 11.3.2 When to Change Outdoor Unit Dip Switch Settings NOTICE:  Power should be turned off when adjusting dip switches. In most scenarios, it is recommended to keep all outdoor unit board dip switch positions in their manufacturer default positions.

  • Page 37: Indoor Unit Dip Switch Settings

    Service Manual Bosch IDS 2.0 | 35 11.3.3 Indoor Unit Dip Switch Settings 11.3.4 When to Change Indoor Unit Dipswitch Settings NOTICE:  Power should be turned off when adjusting dip switches. In most scenarios, it is recommended to keep all indoor unit board dip switch positions in their manufacturer default positions.

  • Page 38: Check Point Values

    3 6 | Bosch IDS 2.0 Service Manual 11.4 Check Point Values To display system parameters, press the “check” button on the outdoor board to index through the series of parameters available. The fi rst time you press the “check” button, it will display the sequence, and after 1 second it will display the value of the parameter.

  • Page 39: Diagnosis And Troubleshooting

    Service Manual Bosch IDS 2.0 | 37 12 Diagnosis and Troubleshooting 12.1 Control Board Component Layout 12.1.1 BOVA36 Outdoor Unit Control Board Function Description Compressor crankcase heater port Pressure equalizer valve port Reversing valve port Thermostat wire connections Th sensor port...

  • Page 40: Bova60 Outdoor Unit Control Board

    3 8 | Bosch IDS 2.0 Service Manual 12.1.2 BOVA60 Outdoor Unit Control Board Function description Pressure equalizer valve port Compressor crankcase heater port Reversing valve port Thermostat wire connections EEV port Th sensor port TF sensor port T3 T4 T3L sensor port...

  • Page 41: Bva2.0 Indoor Unit Control Board

    Service Manual Bosch IDS 2.0 | 39 12.1.3 BVA2.0 Indoor Unit Control Board Function Description SW6 Dipswitches T2 Sensor High Voltage Connection Non-replaceable Fuse Indoor Blower Connection Replaceable Fuse Transformer Connection Electric Heat Kit Connection Thermostat Connection Status LED Figure 15 BVA2.0 Indoor unit control board...

  • Page 42: Fault Code And Limited Condition Descriptions

    4 0 | Bosch IDS 2.0 Service Manual 12.2 Fault Code and Limited Condition Descriptions Fault codes are displayed when an abnormal condition exists that could harm the unit. Fault codes cause the compressor to shut off and force the unit into standby Limited Condition Status codes are displayed when a condition exists that mode until the abnormal condition goes away.
  • Page 43 Service Manual Bosch IDS 2.0 | 41 Limited Condition Fault Code Fault Code Description Potential Cause Status code  Poor heat exchange on coil  Fan motor failure  Service valves not open P2/H5 Low pressure protection.  TXV/EEV/filter drier blocked ...

  • Page 44: Fault Codes And Limited Conditions Troubleshooting

    4 2 | Bosch IDS 2.0 Service Manual 12.3 Fault Codes and Limited Conditions Troubleshooting WARNING: WARNING: ELECTRICAL HAZARD  Power-off the outdoor units before connecting or  All electrical work must be carried out by competent and disconnecting any connections or wiring, otherwise electric...

  • Page 45: E4 Troubleshooting

    Service Manual Bosch IDS 2.0 | 43 12.3.2 E4 Troubleshooting LED display output: Description: Temperature sensor fault (T3, T4, T5, Th, T3L, TF)  Temperature sensors failed – shorted or open (common cause)  Wrong wire connections of sensor Possible causes: ...

  • Page 46: E5 Troubleshooting

    4 4 | Bosch IDS 2.0 Service Manual 12.3.3 E5 Troubleshooting LED display output: Description: High/low voltage protection  Power supply ≥270V  Power supply <172V Possible causes:  Control board issue Table 31 Procedure: Is the high voltage power supply Correct power supply/call ≥270V?

  • Page 47: E6 Troubleshooting

    Service Manual Bosch IDS 2.0 | 45 12.3.4 E6 Troubleshooting LED display output: Description: Outdoor DC fan motor fault  Motor failed  Fan blade damaged or blocked Possible causes:  Extreme weather conditions  Electrical issue Table 32 Procedure:...

  • Page 48: E7 Troubleshooting

    4 6 | Bosch IDS 2.0 Service Manual 12.3.5 E7 Troubleshooting LED display output: Description: T5 sensor not reading correctly  Wrong location of T5 sensor (compressor discharge temp. sensor)  Wrong connection on control board of T5 & Tf (common cause) Possible causes: ...

  • Page 49: E9 Troubleshooting

    Service Manual Bosch IDS 2.0 | 47 12.3.6 E9 Troubleshooting LED display output: Description: EEPROM IC20 fault  EEPROM IC20 poor contact Possible causes:  EEPROM IC20 improperly installed Table 34 Procedure: Is EEPROM IC20 Power off and correct the...

  • Page 50: H0 Troubleshooting

    4 8 | Bosch IDS 2.0 Service Manual 12.3.7 H0 Troubleshooting LED display output: Description: Communication fault in EEPROM IC14 chip  Control board failed Possible causes: Table 35 Procedure: Is EEPROM IC14 Power off and correct the chip improperly...

  • Page 51: H8 Troubleshooting

    Service Manual Bosch IDS 2.0 | 49 12.3.8 H8 Troubleshooting LED display output: Description: Pressure transducer (PT) fault  Pressure transducer wiring not secure Possible causes:  Pressure transducer failed Table 36 Procedure: Is the wiring Secure wiring secure? Did the pressure...

  • Page 52: P0 Troubleshooting

    5 0 | Bosch IDS 2.0 Service Manual 12.3.9 P0 Troubleshooting LED display output: Description: Control board is over-heated  Poor heat dissipation, causing control board to overheat  Tf sensor failed Possible causes:  Wrong connection on control board of T5&Tf (common cause) ...

  • Page 53: P1/F1 Troubleshooting

    Service Manual Bosch IDS 2.0 | 51 12.3.10 P1/F1 Troubleshooting LED display output: P1/F1 Description: High pressure protection  Poor heat exchange on coil (cooling mode – outdoor coil, heating mode – indoor coil)  Fan motor failure (cooling mode – outdoor fan, heating mode – indoor fan) ...

  • Page 54: P2/H5 Troubleshooting

    5 2 | Bosch IDS 2.0 Service Manual 12.3.11 P2/H5 Troubleshooting LED display output: P2/H5 Description: Low pressure protection  Poor heat exchange on coil (cooling mode – indoor coil, heating mode – outdoor coil)  Fan motor failure (cooling mode – indoor fan, heating mode – outdoor fan) ...

  • Page 55: P3 Troubleshooting

    Service Manual Bosch IDS 2.0 | 53 12.3.12 P3 Troubleshooting LED display output: Description: Compressor over current protection  Poor heat exchange on coil (cooling mode – outdoor coil, heating mode – indoor coil)  Fan motor failure (cooling mode – outdoor fan, heating mode – indoor fan) ...

  • Page 56: P4 Troubleshooting

    5 4 | Bosch IDS 2.0 Service Manual 12.3.13 P4 Troubleshooting LED display output: Description: High compressor discharge temperature (T5) protection  Poor heat exchange on coil (cooling mode – outdoor coil, heating mode – indoor coil)  Fan motor failure (cooling mode – outdoor fan, heating mode – indoor fan) ...

  • Page 57: P5 Troubleshooting

    Service Manual Bosch IDS 2.0 | 55 12.3.14 P5 Troubleshooting LED display output: Description: Condenser coil temperature (T3) protection in cooling  Poor heat exchange on coil (cooling mode – outdoor coil)  Fan motor failure (cooling mode – outdoor fan) ...

  • Page 58: P8 Troubleshooting

    5 6 | Bosch IDS 2.0 Service Manual 12.3.15 P8 Troubleshooting LED display output: Description: DC outdoor fan motor protection  Severe weather (fan running in standby mode due to high wind) Possible causes: Table 43 Procedure: Are outdoor weather conditions...

  • Page 59: Ph Troubleshooting

    Service Manual Bosch IDS 2.0 | 57 12.3.16 PH Troubleshooting LED display output: Description: Low discharge superheat protection.  Poor heat exchange on coil (cooling mode – indoor coil, heating mode – outdoor coil)  Fan motor failure (cooling mode – indoor fan, heating mode – outdoor fan) ...

  • Page 60: Lo-L9 Troubleshooting

    5 8 | Bosch IDS 2.0 Service Manual 12.3.17 LO-L9 Troubleshooting LED display output: LO-L9 Description: The IPM module protection  Control board failed  Compressor failed Possible causes:  Abnormal pressure Table 45 Procedure: Are the service Open the service valves...

  • Page 61: Atl Troubleshooting

    Service Manual Bosch IDS 2.0 | 59 12.3.18 AtL Troubleshooting LED display output: Description: Ambient Temperature Limited Condition  Ambient temperature beyond operating range  Incorrect O/B thermostat setting Possible causes:  T4 sensor fault Table 46 Procedure: Is the ambient No service required.

  • Page 62: Situational Troubleshooting

    6 0 | Bosch IDS 2.0 Service Manual 12.4 Situational Troubleshooting 12.4.1 LED Display is Blank LED display output: No fault code displayed Description: Nothing is displayed on the LED display, but there is high voltage power to the board ...

  • Page 63: System Does Not Start

    Service Manual Bosch IDS 2.0 | 61 12.4.2 System Does Not Start LED display output: No fault code displayed Description: High voltage power is available to the unit, unit is given call for heating/cooling, system does not start  The thermostat is improperly wired ...

  • Page 64: Poor Capacity

    6 2 | Bosch IDS 2.0 Service Manual 12.4.3 Poor Capacity LED display output: No fault code displayed No fault code displayed but poor capacity (the the heating or cooling capacity is insuffi cient, but the unit Description: is running) ...

  • Page 65: Poor Dehumidifi Cation

    Service Manual Bosch IDS 2.0 | 63 12.4.4 Poor Dehumidifi cation LED display output: No fault code displayed Description: System is running, but not dehumidifying the space to customer’s expectation  Unit improperly sized  Duct work design error Possible causes: ...

  • Page 66: Advanced System Check

    6 4 | Bosch IDS 2.0 Service Manual 13 Advanced System Check 13.1 Abnormal Pressure Are the service Open service valves valves closed? Is the refrigerant Fix lineset pipe bent or damaged on lineset ? Refrigerant cycle problem Does the...

  • Page 67: Pressure Transducer (Pt)

    Service Manual Bosch IDS 2.0 | 65 13.2 Pressure Transducer (PT) Run unit in heating or cooling mode Press check point button on the outdoor control board to check suction pressure (Cooling - check point #9, Heating - check point #10). Write down value for later reference.

  • Page 68: Electronic Expansion Valve (Eev)

    6 6 | Bosch IDS 2.0 Service Manual 13.3 Electronic Expansion Valve (EEV) Restart unit, give a call for heat Is there a fast Are there signs of Follow section 13.1 to “clicking” noise abnormal high/low check for abnormal when heating mode...

  • Page 69: Temperature Sensor (T3,T4,T5,Th,T3L,Tf)

    Service Manual Bosch IDS 2.0 | 67 13.4 Temperature Sensor (T3,T4,T5,Th,T3L,Tf) Out of operating range. Is ambient temperature No service required. below -4°F? If you do not wait 10-15 minutes, your Satisfy tstat and wait in standby mode temperature reference value will be for 10 - 15 minutes incorrect in the next steps.

  • Page 70: High Pressure Switch (Hps)

    6 8 | Bosch IDS 2.0 Service Manual 13.5 High Pressure Switch (HPS) Is wiring from HPS Correct according to to control board wiring diagram correct? Power off unit at breaker Location Unplug HPS from control board and measure resistance at wiring harness Is resistance ≥...

  • Page 71: Outdoor Fan Motor

    Service Manual Bosch IDS 2.0 | 69 13.6 Outdoor Fan Motor Restart system, give system a call for ODU fan should run any time there is a call heating/cooling for cooling/heating. Does ODU motor No service required run properly? Power off the unit at...

  • Page 72: Indoor Blower Motor

    7 0 | Bosch IDS 2.0 Service Manual 13.7 Indoor Blower Motor Restart unit, give system Tstat Conection Wire Color call for heating/cooling Blower should run any time there is a call for cooling/heating. Only exception is fan delay R & C Red &...

  • Page 73: Compressor

    Service Manual Bosch IDS 2.0 | 71 13.8 Compressor Restart unit, give call for heating/cooling, wait 5 mins Does compressor appear to be running properly No service required (i.e. no abnormal noise)? Is the power supply Correct power supply/call 172V-270V?

  • Page 74: System Charge

    7 2 | Bosch IDS 2.0 Service Manual 13.9 System Charge Is ambient temp within 55-120°F? Temperature out of range, charge unit via weigh in Is indoor temperature method. Refer to IOM between 70-80°F? Start the system in cooling mode for at least 10 minutes Short press “Force”...

  • Page 75: Outdoor Board Fuse

    Service Manual Bosch IDS 2.0 | 73 13.10 Outdoor Board Fuse Outdoor Board Fuse Fuse Type 250V/30A Function Protect control board The System will not work if this fuse is blown. Did the fuse blow No service required on the outdoor board?

  • Page 76: Indoor Board Fuse

    7 4 | Bosch IDS 2.0 Service Manual 13.11 Indoor Board Fuse Did fuse#1 blow on No service required the indoor board? Fuse#1 Type 32V/3A Fuse#2 Type 230V/ 3.15A Function Protect control board Power off unit IDS 2.0 Indoor Board...

  • Page 77: Appendix

    Service Manual Bosch IDS 2.0 | 75 Appendix Appendix 1 Outdoor Unit Control Board WARNING: ELECTRICAL HAZARD 380 VOLTS DC Failure to follow this warning could result in property damage, severe personal injury, or death. WAIT THREE (3) MINUTES after disconnecting power...

  • Page 78: Wiring Diagram

    Installation Instructions Bosch IDS BOVA | 39 WARNING 16 Wiring Diagram ELECTRIC HAZARD 380 VOLTS DC WAIT 3 MINUTES AFTER DISCONNECTING POWER,THEN VERIFY DC VOLTAGE LESS THAN 42 VDC AT INVERTER TEST POINTS P & TESTCOMPONENTS MAY STORE A DANGEROUS ELECTRICAL POTENTIAL OF 380 VOLTS DC.
  • Page 79 7 6 | Bosch IDS 2.0 Service Manual Component Check Measure location Parameter When to check Terminal Block High voltage power supply 172-270V(AC) When there is high voltage power to unit (L1-L) CN9 Thermostat connection Low voltage power supply 18-30V(AC)

  • Page 80: Appendix 2 Indoor Unit Control Board

    Service Manual Bosch IDS 2.0 | 77 Appendix 2 Indoor Unit Control Board Figure 50 Bosch Thermotechnology Corp. | 07.2021 Data subject to change...
  • Page 81 7 8 | Bosch IDS 2.0 Service Manual Component Check Measure location Parameter When to check Terminal Block High voltage power supply to board 172-270V(AC) When there is high voltage power to unit (L1-L) (Y1-C, Y2-C, R-C, G-C) Thermostat connection...

  • Page 82: Additional Information

    OWNER: DATE REQUIRED: Name: REQUESTOR: Address: DISTRIBUTOR: City: Zip: Name: State/Province: Phone: Street: SERVICING CONTRACTOR: City: Zip: Name: State/Province: Street: Phone: City: Zip: Contact: State/Province: Phone: Contact: TYPE OF REFRIGERANT: EQUIPMENT DATA: OUTDOOR UNIT Model #: Serial #: Date Installed: EVAPORATOR Model #: Serial #:...
  • Page 84 System Data Check Step Value System Operation Parameter Outdoor unit capacity H3 H3=Heat Pump 3 ton Outdoor unit mode 2 Outdoor unit set compressor speed (Hz) 66 T3 (outdoor coil temp.) (°F) T4 (outdoor ambient temp.) (°F) T5 (compressor discharge temp.) (°F) Th (compressor suction temp.) (°F) T3L (liquid line temp.) (°F) Tf (module temp.) (°F)

  • Page 85: Pressure Temperature Chart

    Pressure Temperature Chart All pressures shown are in PSIG Red print = Vacuum (inches of Mercury) 401A 401B 402A 409A 404A 408A 410A (MP39) (MP66) (HP80) (FX56) 134a (HP62) (FX10) (AZ20) (FX70) 11.0 14.5 14.3 12.8 13.1 11.6 10.0 13.7 13.4 11.8 12.1...

  • Page 86: Refrigeration Cycle

    Refrigeration Cycle Ohms Law Wheel Handy HVAC Formulas Refrigeration Cycle Ohms Law Wheel Refrigeration Cycle Ohms Law Wheel Handy HVAC Formulas Refrigeration Cycle Ohms Law Wheel Metering Device Condenser Evaporator Metering Pressure-Enthalpy (PH) Diagram for Refrigerant Blends Metering BTUH (sensible heat) = CFM x 1.08 x 6T Device Device Condenser...

  • Page 87: Helpful Links

    Product Serial Number Guide https://www.bosch- thermotechnology.us/us/en/residential/service/technical-support/serial- number-locator/ AC Spare Parts Lookup Tool https://spareparts.bosch-climate.us/ Product Registration Page https://boschprohvac.com/register/ Find An Installer Search Tool https://www.bosch- thermotechnology.us/us/en/residential/service/dealer- locator/dealersearch/ Tax Rebates And Incentives https://www.bosch-climate.us/support-center/tax-rebates-incentives/ Bosch Select Tools (BST 2.0) https://bst.bosch-thermotechnology.us/eRep/ Warranty Document Library https://www.bosch- thermotechnology.us/us/en/residential/service/product-warranty-library/...
  • Page 88 Bosch Thermostats Available in Access Code Master BCC 100 BCC 50   Factory Reset (FS)   Manual Operation-APP (BA1)   Manual Operation-Thermostat (BA0)   Server Data Wipe (IT)   System Backup (RF)   WiI Factory Reset (WRS) ...
  • Page 89 Bosch IDS 2.0 Locked Compressor Frequency If the Check button is depressed for longer than Six (6) seconds and Once the Check Button has engaged the LCF the Hertz released the codes below will be setpoint changed be changed to the set points below...
  • Page 90 3-Ton 5-Ton BTU per hertz BTU per hertz BTU Rating Hertz Hertz BTU Rating 12000 22000 14400 26400 18240 33440 26400 48400 34560 63360 38400 70400 40800 74800 This is not a Bosch Formula for Calculating Hertz to BTU Output...
  • Page 91 If you have any questions regarding the information provided in this document, please that could potentially be caused by over-voltage. contact the Bosch Technical Support Team by phone at 1-800-283-3787, or by email Figure 3 shows the PCB in an existing pre-improvements motor (BEFORE), and an ac.techsupport@us.bosch.com...
  • Page 92 COPY TO BE USED FOR FIELD TRIAL Technical Instructions E-Box Replacement Bosch IDS BOVA 3 Ton | 5 Ton...
  • Page 93 Technical Instructions Table of Contents 1 Key to Symbols and Safety Instructions 1.1 Key to Symbols 2 Components 3 Replacement Instructions IDS BOVA E-Box Replacement - BTC 761702110 A (2021/04)
  • Page 94 Technical Instructions 1 Key to Symbols and Safety Instructions 2 Components 1.1 Key to Symbols The following components are included in the kit: Warnings Warnings in this document are identifi ed by a warning triangle printed against a grey background. Keywords at the start of a warning indicate the type and seriousness of the ensuing risk if measures to prevent the risk are not taken.

  • Page 95: Replacement Instructions

    Technical Instructions 3 Replacement Instructions   T o remove T3 and T4 sensors, remove white cover to disconnect sensor. See Figure 3. 1. Turn off power to the unit and wait at least 3 minutes. WARNING: HAZARDOUS VOLTAGE 380 VOLTS DC Push in ...
  • Page 96 Technical Instructions 7. Carefully pull the wires from the bottom left and right hole through the back of the E-Box. See Figure 5. Slide upward Figure 6 E-Box Removal 9. Unscrew 2 screws (red) on the panel and 2 screws (blue) mounting the “true suction”...
  • Page 97 Technical Instructions 11. Unscrew 4 screws to remove reactor box and white wiring harness. This is not 13. Slide in the new Ebox in from the top and secure with screws saved in Step 8. needed for the new control board. Refer to Figure 8. Note: The sides of the Ebox should line up and slide into the guide rails on the unit.
  • Page 98 Technical Instructions 14. Route the compressor wires and compressor ground to the top of the Ebox 16. Mount new Bottom Access Panel on with 4 screws and secure the true and secure using wire clip. Refer to Figure 11. suction service port. Careful when sliding the true suction service port into the slot on the panel.
  • Page 99 Technical Instructions 20. Connect all wires according to the wiring diagram. See Figures 15 and 16. BLUE BLACK Note: Compressor color labels on PCB are different than the actual color of the compressor wires Note: Blue Wire (10k Resistance) at CN7 does not need a connection Fasten all wires and tighten all screws.
  • Page 100 Technical Instructions 21. Feed thermostat wires through the Bottom Access Panel to the CN9 wire 24. Connect L1 and L2 to high voltage terminal block. Refer to Figure 19. harness on the control board. Splice wires and use fi eld supplied wire nuts to make connection.
  • Page 101 Notes...

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