Bosch BRB-36HWD1N1-M18 Installation & Operation Manual

Bosch BRB-36HWD1N1-M18 Installation & Operation Manual

Inverter ducted packaged heat pump

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Bosch Inverter Ducted Packaged Heat Pump
18.5 SEER Series (3 Ton Capacity)
R410A
Installation & Operation Manual

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Summary of Contents for Bosch BRB-36HWD1N1-M18

  • Page 1 Bosch Inverter Ducted Packaged Heat Pump 18.5 SEER Series (3 Ton Capacity) R410A Installation & Operation Manual...
  • Page 2 2 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual Data subject to change 04.2020 | BTC 761701311 C...
  • Page 3: Table Of Contents

    Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 3 Table of Contents 13 System Operation and Troubleshooting 1 Key to Symbols and Safety Instructions 13.1 Control Logic Description 1.1 Key to Symbols 13.2 Sensors (Thermistors/Pressure Transducer) 1.2 Safety...
  • Page 4: Key To Symbols And Safety Instructions

    4 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual 1 Key to Symbols and Safety Instructions 1.2 Safety Please read before proceeding 1.1 Key to Symbols Warnings This document contains a wiring diagram and service information.
  • Page 5 Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 5 WARNING: PERSONAL INJURY/ENVIRONMENTAL HAZARD CAUTION: BURN HAZARD Any attempt to repair a central air conditioning Failure to follow this warning will result in abrupt  ...
  • Page 6: Component Location

    6 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual 2 Component Location Outdoor Fan Fusible Plug Service Valves Indoor Fan Comp Figure 1 Component Descriptions Component Descriptions High pressure switch Condensor outlet temp. sensor Pressure transducer Radiator temp.
  • Page 7: Dimensions

    Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 7 3 Dimensions 3.1 Unit Dimensions Front Condensate drain connection 3/4" NPT (Trap required) Figure 2 Heat Pump Model BRB-36HWD1N1-M18 50-11/16" 35-1/16" 46-13/16" 44-1/16" 11-3/4" Table 2...
  • Page 8: Dimensions - Back And Bottom

    8 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual 3.2 Dimensions - Back and Bottom Bottom view 4-5/16" 21-9/16" OPTIONAL OPTIONAL RETURN AIR SUPPLY AIR OPENING OPENING Back view SUPPLY RETURN DUCT DUCT OPENING OPENING 4-3/16"...
  • Page 9: Dimensions - Left And Top

    Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 9 3.3 Dimensions - Left and Top Top view Left side view 5-1/16" 6-5/8" 11-3/4" 6-5/8" Figure 4 BTC 761701311 C | 04.2020 Data subject to change...
  • Page 10: Installation

    1 0 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual 4 Installation Exercise care when moving the unit. Do not remove any packaging until the unit is near the place of installation. Rig the unit by attaching chain or 4.1 Pre-Installation...
  • Page 11 Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 11 Units should be elevated 3-12 inches above the pad or rooftop,  depending on local weather. This additional height will allow drainage of snow and will permit condensate water to drain when the unit is in defrost mode.
  • Page 12: Rooftop Installation - Curb Mounting

    1 2 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual 4.4 Rooftop Installation - Curb Mounting The manufacturer does not supply roof curbs, they must be fi eld supplied. Refer to Figure 11 for recommended roof curb dimensions. On applications when a roof curb is used, the unit must be positioned on the curb so the front of the unit is tight against the curb.
  • Page 13: Airfl Ow Performance

    Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 13 5 Airfl ow Performance Airfl ow performance data is based on cooling performance with a coil and no fi lter in place. Check the performance table (Table 6) for appropriate unit size selection.
  • Page 14: Indoor Fan Motor Function

    1 4 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual 6 Indoor Fan Motor Function Mid- SW6-4 SW6-1 SW6-2 High high System Operation and Function This unit can run with either 4 Stage Fan Control or 2 Stage Fan Control.
  • Page 15: Ductwork

    Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 15 7 Ductwork Be sure to note supply and return openings. Refer to Figure 3 for information concerning supply and return air duct Field ductwork must comply with the National Fire Protection Association dimensions.
  • Page 16: Condensate Drain Connection

    1 6 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual 8 Condensate Drain Connection 9 Air Filter (Not Factory-Installed) Unit should be installed in accordance with national and local safety Filters and fi lter racks are not included with the unit and must be fi eld codes, including but not limited to ANSI/NFPS No.
  • Page 17: Electrical Wiring

    Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 17 10 Electrical Wiring 10.3 Control Wiring Field wiring must comply with the National Electric Code (NEC) and any applicable local ordinance. WARNING: FIRE HAZARD Low voltage control wiring should not be run in ...
  • Page 18 1 8 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual Support 3H and 2C thermostat Support 4H and 2C thermostat BROWN BROWN YELLOW YELLOW PURPLE PURPLE GREEN GREEN BLUE BLUE WHITE WHITE WHITE/BLACK GRAY GRAY...
  • Page 19: Start Up

    Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 19 11 Start Up WARNING: ELECTRICAL SHOCK 11.1 System Start Up Label all wiring prior to disconnection when  Ensure Sections 4, 5, 6, 7, and 8 have been completed.
  • Page 20: System Charge Adjustment

    2 0 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual 12 System Charge Adjustment The unit comes precharged from the factory with 7-8 lb-oz of 80 ºF refrigerant. Follow Section 12 for charge adjustments i.e if components have been replaced, or if there is a suspected leak.
  • Page 21 Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 21 Connect gauges to refrigerant bottle and unit as illustrated  (Figure 27 and 28).  Purge all hoses.  Open tank.  Stop adding refrigerant when subcooling matches the charging chart (Table 14) Final Subcooling value.
  • Page 22: System Operation And Troubleshooting

    2 2 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual 13 System Operation and Troubleshooting 13.2 Sensors (Thermistors/Pressure Transducer) 13.1 Control Logic Description T1 = Return Air Temperature  — Indoor Fan Control The variable speed system adopts the same 24VAC control as any ...
  • Page 23: Defrost Description

    Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 23 13.3 Defrost Description Manual Defrost:  System must have a call for heat and have been operating for a The Demand Defrost Control (DDC) monitors the ODU coil ...
  • Page 24: Protection Functions

    2 4 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual 13.6 Protection Functions Outdoor coil temperature protection (T3)  i. If T3 > 143.6°F, compressor is de-energized. ii. If T3 < 129.2°F, compressor is energized.
  • Page 25: Fault Code Table

    Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 25 13.7 Fault Code Table Outdoor Control Board Code Fault Description (Sensor) The coil sensor is seated fault in cooling (T3) Temperature sensor fault (T3, T4, T5, Th, T3L)
  • Page 26: Parameter Point Check Table

    2 6 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual 13.8 Parameter Point Check Table Normal Status, last two digits will display under the following To display system parameters, press the “Check” button to ...
  • Page 27: Control Board Overview

    Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 27 13.9 Control Board Overview Outdoor Unit Control Board for 3 Ton Model No. Function description Compressor crankcase heater port Reserve Reversing valve port Thermostat wire connections...
  • Page 28 2 8 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual Indoor Unit Control Board for 3 Ton Model No. Function description Thermostat wire connection terminal Electric Heat Kit E port Thermostat wire port (to ODU board)
  • Page 29: Error Code Troubleshooting (Odu)

    Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 29 13.10 Error Code Troubleshooting (ODU) P5 (Condenser coil temperature (T3) protection in cooling) Error Code Description (Sensor) Handling Diagnosis High pressure switch (HPS) protection Condenser coil temperature (T3) protection in cooling...
  • Page 30 3 0 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual Error Code Description Low pressure (PT) Protection in cooling and heating P3 (Compressor over current protection) System lockup, 5 times (P2) protection in 100 Diagnosis...
  • Page 31 Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 31 Error Code Description Temperature sensor fault (T3, T4, T5,Th, T3L) F1 (High pressure switch (HPS) fault) Diagnosis Handling Pressure transducer (PT) fault High pressure switch (HPS) fault...
  • Page 32 3 2 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual Error Code Description Condenser coil sensor (T3) is seated fault in cooling E7 Compressor discharge sensor (T5) is seated fault) Diagnosis Handling Compressor discharge sensor (T5) is seated fault...
  • Page 33 Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 33 Error Code Description EEPROM fault E5 (High/low voltage protection) Diagnosis Handling Communication fault in main control chip High/low voltage protection Check whether the power Make sure the power...
  • Page 34 3 4 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual Error Code Description Error Code Description L0-L9 IPM module protection Ambient Temperature Limited Table 29 Table 30 When error codes L0-L9 appears occasionally, no action is necessary. The When the ambient temperature returns to within the system will restart automatically after 6 minutes.
  • Page 35: Error Code Troubleshooting (Idu)

    Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 35 13.11 Error Code Troubleshooting (IDU) Number of fl ashes Description (Sensor) Communication error Number of fl ashes Description (Sensor) Table 33 Temperature sensor fault (T1) Temperature sensor fault (T2)
  • Page 36: Temperature And Resistance Relationship Tables (For Sensors)

    Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 39 14 Maintenance 14.2 Regular Maintenance Your heat pump must be inspected regularly by a qualifi ed service technician. For continuing high performance and to minimize possible equipment failure, periodic maintenance must be performed on Inspect the air fi...
  • Page 37: Temperature And Resistance Relationship Tables (For T5)

    United States Bosch Thermotechnology Corp. 65 Grove Street Watertown, MA 02472 Tel: 866-642-3198 Fax: 603-965-7581 www.boschheatingandcooling.com BTC 761701311 C | 04.2020...

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