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Bosch LV030 - User Manual

Bosch LV030
64 pages
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Installation and Maintenance Manual
LV MODEL
8733944336 (2016/09)

Table of Contents

Questions and Answers

  • K
    Kristi GarciaSep 7, 2025
    How to troubleshoot a Bosch Heat Pump with no compressor operation but running fan, possibly due to blocked return air?
    • B
      byrdsarahSep 7, 2025
      If your Bosch Heat Pump's compressor isn't running but the fan is, it could be due to a condensate fault caused by blocked return air. Check the condensate pan for a high water level. Also, check the air filter and return air duct work for blockage, and ensure there is adequate space between the return air opening and any obstructions.
  • B
    breanna19Aug 22, 2025
    Why is my Bosch Heat Pump not shifting into cooling?
    • M
      Michael HansonAug 22, 2025
      If your Bosch Heat Pump isn't shifting into cooling mode, check that the reversing valve solenoid is receiving 24 VAC. If it is, check the resistance of the solenoid; an open circuit may indicate a burned out solenoid. Also, check that the reversing valve thermostat wire is connected to the 'O' terminal of the thermostat and check for a contact closure between 'O' and 'R'. Finally, check that the wires from the thermostat to the unit are securely connected and that the wires from the electrical box to the reversing valve are connected.
  • D
    David AustinSep 5, 2025
    What to do if the compressor of my Bosch Heat Pump doesn't work but the fan runs and there is a freeze fault caused by low refrigerant?
    • M
      Misty OrrSep 5, 2025
      If your Bosch Heat Pump's compressor isn't running but the fan is, it could be due to a freeze fault in the air coil caused by low refrigerant. Check the refrigerant pressure with a gauge set.
  • B
    Beth WallaceSep 3, 2025
    How to troubleshoot a Bosch LV030 with no compressor operation but running fan, possibly due to a bad thermostat connection?
    • J
      Jeffrey HarrisSep 3, 2025
      If the compressor of your Bosch Heat Pump is not working, but the fan is running, it might be due to a brown-out fault caused by a bad thermostat connection. Check that the thermostat wiring is of the proper gauge and length, is undamaged, and that all connections at the thermostat and heat pump are secure.
  • E
    Eric PrinceSep 2, 2025
    What to do if my Bosch LV030 compressor isn't running but the fan is on and I suspect an overloaded control circuit?
    • H
      Heather OnealSep 2, 2025
      If the compressor of your Bosch Heat Pump is not working, but the fan is running, it might be due to a brown-out fault caused by an overloaded control circuit. Check the control voltage; if it's below 18V, inspect the accessories connected to the unit and ensure they don't exceed the VA draw.
  • A
    Ashley BeckAug 31, 2025
    Why is my Bosch Heat Pump compressor not running but the fan is, possibly due to low airflow?
    • I
      ipenningtonAug 31, 2025
      If your Bosch Heat Pump's compressor isn't running but the fan is, it could be due to a low-pressure fault caused by no or low airflow. Check the fan motor to ensure it is operating correctly.
  • S
    Sean MorrisAug 30, 2025
    What to do if my Bosch Heat Pump compressor isn't running but the fan is, and I suspect airflow issues?
    • K
      Kimberly SchultzAug 30, 2025
      If your Bosch Heat Pump's compressor isn't running but the fan is, it could be due to a high-pressure fault caused by no or low airflow. Check the fan motor to ensure it is operating correctly.
  • J
    Jason RodriguezAug 29, 2025
    How to troubleshoot a Bosch Heat Pump with no compressor operation but running fan, possibly due to a fouled water coil?
    • K
      Kimberly EllisAug 29, 2025
      If your Bosch Heat Pump's compressor isn't running but the fan is, it could be due to a high-pressure fault caused by a fouled or scaled water coil. Check for proper flow rate and water temperature, especially looking for a low water side temperature rise during cooling.
  • D
    David CastroAug 27, 2025
    Why is my Bosch LV030 Heat Pump compressor not running but the fan is, possibly due to high water temperature?
    • C
      Craig BurnsAug 27, 2025
      If your Bosch Heat Pump's compressor isn't running but the fan is, it could be due to a high-pressure fault caused by high water temperature. Check the water temperature to ensure it is within the appropriate range.
  • J
    Jeffery CervantesAug 27, 2025
    What to do if the compressor of my Bosch LV030 doesn't work but the fan runs and there is a freeze fault?
    • M
      michaelwilliamsAug 27, 2025
      If your Bosch Heat Pump's compressor isn't running but the fan is, it could be due to a freeze fault in the water coil caused by no or low water flow. Check the water valves and/or pumps to ensure they are operating correctly. Also, check the water coil for any blockages.

Summary

Safety and Symbols

Safety Warnings

Details critical safety precautions for installation, servicing, and operation.

Model Nomenclature

Installation Procedures

Site Preparation and Unit Inspection

Steps for preparing the installation site and inspecting the unit upon receipt.

Hanging Bracket Kit Installation

Duct System and Condensate Drain

Verifying duct system integrity and installing condensate drain line.

Piping and Power Supply Wiring

Guidelines for connecting water piping and wiring field power supply.

Field Controls and ECM Wiring

Steps for wiring field controls, ECM interface, and safety devices.

Freeze Sensor and Reset Procedures

Explains freeze sensor operation and lockout reset functions.

Pre-Start-Up and Start-Up

System Checkout and Operating Limits

Essential checks and limits before initial unit startup.

Start-Up Procedure

Steps for initiating a proper start-up sequence.

Scroll Compressor Rotation Check

Procedure to check and ensure correct compressor rotation direction.

Sequence of Operation

Describes the operational sequence of the unit.

Cooling and Heating Start-Up

Steps for starting the unit in cooling and heating modes.

Flow Regulation and Flushing

Troubleshooting

Unit Troubleshooting Guide

Table for diagnosing and resolving unit operational problems based on fault codes.

Application Considerations

Water Quality and Piping

Unit Options

Piping Guidelines

Performance Data

Fan Motor Options

Compressor Characteristics

Wiring Diagrams

Unit Wiring Schematics

Presents wiring diagrams for different unit configurations and components.

UPM Status LED Blink Codes

Explains UPM status LED blink codes for fault diagnosis.

Maintenance and Decommissioning

Routine Maintenance

Bosch LV030 Specifications

General IconGeneral
HSPFUp to 10
Phase1
RefrigerantR410A
Voltage230V
Operating Temperature Range (Heating)75°F
Operating Temperature Range (Cooling)122°F

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