Bosch ZWB 35-3 A NG User Manual

6721822579 (2021/01) US/CA
Installation and Service Instructions for Contractors
Residential Gas Condensing Boiler
Greenstar
0010004900-002
WARNING:
Improper installation, set-up, modification, operation or maintenance
of the heating system can cause personal injury and property damage.
Follow these instructions precisely.
If you require assistance or further information, contact a trained and
certified installer or the gas supply company.
WARNING:
The operating instructions are part of the technical documents that
must be handed over to the owner or operator of the heating system.
Explain to the owner or operator how to use the heating system using
the operating instructions. Make sure that they are familiar with all
required information for the safe and proper operation of the heating
system.
These instructions are available in English and French.
Please keep these instructions for future reference.
ZBR 21-3 A... | ZBR 28-3 A... | ZBR 35-3 A... | ZBR 42-3 A... | ZWB 28-3 A... | ZWB 35-3 A... |
ZWB 42-3 A...

Bosch ZWB 35-3 A NG Specifications

General

Brand	Bosch
Model	ZWB 35-3 A NG
Category	Boiler
Language	English

Summary

Symbols, Safety, and Product Overview

General Safety Instructions

Crucial safety guidelines and procedures for installation and operation.

Scope of Delivery and Product Details

Lists included components and describes boiler features, layouts, and specifications.

Regulations, Installation Examples, and Operation Notes

Regulations and Installation Examples

Covers compliance with codes, operating limits, and installation scenarios.

Installation and Operation Guidelines

Key notes for system setup, water, antifreeze, and component maintenance.

Electrical Connection and Commissioning

Electrical Connection Procedures

Safety, Heatronic wiring, junction box connections, and accessory wiring.

Commissioning Steps and DHW Temperature Adjustment

Pre-operation checks, startup, and setting domestic hot water temperatures.

Boiler Control Settings, Gas Adjustment, and Flue Gas Testing

Heatronic Boiler Control Settings

Navigating service menus, setting operating modes, and understanding service functions.

Gas Adjustment and Flue Gas Testing

Procedures for gas conversion, combustion optimization, and emissions measurement.

Inspection, Maintenance, and Faults

Inspection and Maintenance Procedures

Detailed steps for routine service, component checks, and cleaning.

Display Readings, Fault Codes, and Troubleshooting

Interpreting display information, resolving errors, and checking sensor data.

Commissioning Log

Appliance Commissioning Record

A form for documenting installation and service details.