Bosch TA035 User Manual

Installation and Maintenance Manual
TA Series
6 720 220 046
Revised 03-11

Bosch TA035 Specifications

General

Brand	Bosch
Model	TA035
Category	Heat Pump
Language	English

Summary

Installation and Maintenance Manual TA Series

Initial Inspection and Preparation

General Description and Safety

Provides an overview of the heat pumps and essential safety precautions during installation and use.

Moving, Storage, and Location

Covers guidelines for handling, storing, and selecting an appropriate location for the unit.

Installation Overview

Details initial installation steps, including mounting vertical units and removing shipping blocks.

Mounting Horizontal Units

Condensate Drain Connection

Details the correct installation and pitch for condensate drain lines to ensure proper drainage.

Duct System, Piping, and Electrical

Duct System Requirements

Outlines considerations for supply and return air duct connections, sizing, and insulation.

Piping and Water Connections

Covers requirements for fluid piping, including material choice, insulation, and valve types.

Electrical Installation

Details field wiring compliance, voltage requirements, and phase balancing for electrical connections.

ECM Interface Board and Controls

ECM Interface Board Layout

Explains the component layout and connections on the ECM interface board.

Thermostat Connections and Functions

Details thermostat wiring to the ECM board and the functions of each terminal.

Motor Profile Air Flow Data

Safety Devices and UPM Controller

Unit Safety Controls and Features

Describes safety switches, freeze protection, overflow sensors, and UPM controller features.

UPM Controller Faults and Settings

Electric Heater Package Option

Outlines key considerations for installing and wiring electric heater packages.

Sequence of Operation

Cooling and Heating Modes

Details the sequence of operations for cooling, heating, and auxiliary heat stages.

Well Water System Application

Discusses water quality considerations and heat exchanger material recommendations for well water.

System Installation Variations

Pressure Regulating Valves

Explains the use and installation of pressure regulating valves for water flow control.

Cooling Tower/Boiler Systems

Covers installation and operation for cooling tower and boiler loop applications, including water treatment.

Earth Coupled Systems

Provides guidance on installing earth-coupled systems, emphasizing specialized training and antifreeze use.

System Checkout and Start-Up

System Checkout Procedures

Lists essential checks to perform after installation before energizing the unit.

Unit Start-Up Guide

Step-by-step instructions for starting up the unit in cooling and heating modes.

Heat Recovery and Piping Preparation

Details the heat recovery package and preparation steps for water tank and piping.

Water Tank Refill and Heat Recovery Start-Up

Water Tank Refill Procedure

Step-by-step instructions for refilling the water tank and purging air.

Heat Recovery Initial Start-Up

Guides the initial start-up process for the heat recovery pump and system.

Maintenance and Troubleshooting

Routine Maintenance Tasks

Advises on filter changes, annual checkups, and condensate drain cleaning.

Troubleshooting Flow and Output Issues

Addresses problems like no flow, low flow, high water temperature, and low heat output.

Typical Wiring Diagrams

Single Phase ECM Blower Motor Wiring

Shows the wiring diagram for a single-phase ECM blower motor.

Status LEDs and Alarm Codes

Explains the meaning of status LEDs and alarm blink codes on the UPM board.

Wiring Diagram: Electric Heat Option

Single Phase ECM Blower Motor with Electric Heat

Illustrates the wiring diagram for units with electric heat packages.

Operating Pressures and Temperatures

Unit Check-Out Sheet

Troubleshooting Guide

Unit Power and Blower Issues

Covers problems like no power, blown fuses, and blower operation without compressor.

Compressor and Pressure Control Issues

Addresses unit shutdown due to high/low pressure controls and compressor issues.

Unit Short Cycling and Refrigerant Issues

Explains causes and solutions for unit short cycling and refrigerant charge problems.

Insufficient Cooling or Heating

Provides troubleshooting steps for insufficient cooling or heating performance.