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Bosch LV024 User Manual

Bosch LV024
64 pages
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Installation and Maintenance Manual
LV MODEL
8733944336 (2016/09)

Table of Contents

Questions and Answers:

Bosch LV024 Specifications

General IconGeneral
BrandBosch
ModelLV024
CategoryHeat Pump
LanguageEnglish

Summary

KEY TO SYMBOLS

Warnings

Explains warning symbols and keywords for risk identification and severity.

SAFETY WARNINGS

DANGER and WARNING

Highlights severe hazards, potential for death, serious injury, or property damage.

INSTALLATION

INSTALLATION - SITE PREPARATION

Step 3: Locate Unit

Guides selection of optimal indoor location, ensuring service access and proper airflow.

Step 4: Mount The Unit

Provides instructions for mounting vertical and horizontal units, including vibration isolation and pitching.

INSTALLATION - UNIT MOUNTING

INSTALLATION - HANGING BRACKET KIT

Hanging Bracket Installation Instructions

Step-by-step guide for installing the hanging bracket kit for suspended unit mounting.

Safety Precautions for Hanging

Critical warnings regarding screw reuse, code compliance, and secure ceiling anchoring.

INSTALLATION - DUCT AND DRAIN

INSTALLATION - PIPING AND WIRING

Step 8: Wire Field Power Supply

Detailed instructions for high voltage power supply wiring, including safety and compliance notes.

INSTALLATION - ELECTRICAL CONNECTIONS

INSTALLATION - UNIT CONTROLS

Step 9: Wire Field Controls

Procedures for wiring field controls, including ECM interface board and thermostat connections.

SAFETY FEATURES AND UPM BOARD

Unit Safety Features

Details on high/low pressure switches, freeze protection sensors, and condensate overflow protection.

UNIT PROTECTION AND FAULT CODES

PRE-START-UP CHECKS

System Checkout

Essential checks before initial unit startup, including voltage, connections, and piping.

START-UP PROCEDURES

Scroll Compressor Rotation Check

How to verify correct compressor rotation direction for proper operation and to prevent damage.

SEQUENCE OF OPERATION

ECM CONTROL BOARD SEQUENCE

UNIT START-UP MODES

Cooling Mode Start-Up

Steps for initiating and verifying proper operation in the cooling cycle.

Heating Mode Start-Up

Steps for initiating and verifying proper operation in the heating cycle.

APPLICATION CONSIDERATIONS

WATER SYSTEM APPLICATIONS

WATER QUALITY CONSIDERATIONS

PIPING GUIDELINES

FAN MOTOR OPTIONS

FAN MOTOR SPECIFICATIONS

Constant Torque ECM Motors

Details on ECM motor efficiency, speed settings, and performance for constant torque applications.

FAN MOTOR TYPES

Constant Airflow ECM Motors

Features of ECM motors for constant airflow, including ventilation and dehumidification modes.

TROUBLESHOOTING GUIDE

No Compressor Operation, Fan Runs

Troubleshooting steps for faults indicated by LED blinking, related to pressure or freeze conditions.

TROUBLESHOOTING - FAULT INDICATIONS

No Compressor, Fan Runs - Condensate/Brown Out/Freeze Faults

Diagnosing issues based on LED blink codes for condensate, brown out, and freeze conditions.

No Compressor, Fan Runs - Thermostat/Wiring Issues

Troubleshooting thermostat connections and wiring for compressor operation failures.

TROUBLESHOOTING - DRIVE COMPONENT ISSUES

No Compressor Operation

Diagnosing compressor overload, wiring issues, and potential motor failure.

No Power or Fan Operation

Troubleshooting low/no supply power, faulty transformer, and fan relay issues.

TROUBLESHOOTING - AIRFLOW AND MODE ISSUES

Fan Operation Issues

Troubleshooting no fan operation signals, loose wiring, and interface board problems.

TROUBLESHOOTING - ENVIRONMENTAL AND NOISE ISSUES

WIRING DIAGRAMS

MAINTENANCE SCHEDULE

INFORMATION ON DECOMMISSIONING

UNIT CHECK OUT SHEET

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