Buderus Logano plus GB312 Installation Guide

Contents
Logano plus GB312 - Technical specifications are subject to change without prior notice
3
7.19 Informing the owner/operator and
handing over technical documentation 53
7.20 Commissioning log 54
8 Shutting down the heating system 55
8.1 Shutting down the heating system using the programmer
55
8.2 Shutting down the heating system in an emergency 55
8.2.1 Action in an emergency 55
9 Heating system servicing 56
9.1 Preparing the boiler for servicing 57
9.2 General operations 57
9.3 Checking the flue system inc. combustion air supply,
inlet and outlet air vents 58
9.4 Checking the heating system operating pressure 58
9.5 Measuring the carbon dioxide content 59
9.6 Determining how dirty the burner and
heat exchanger are and cleaning them 59
9.6.1 Determining the extent of contamination 59
9.6.2 Cleaning the burner and heat exchanger 61
9.7 Checking gas valve for leaks 67
9.8 Checking for leaks during normal operation 69
9.9 Testing ionization current 69
9.10 Concluding servicing/maintenace 69
9.10.1 Removing instruments 69
9.10.2 Fitting outer casing components 69
9.10.3 Confirming servicing/maintenance 69
9.11 Servicing and maintenance logs 70
10 Troubleshooting 72
10.1 Identifying operating modes and resetting faults 72
10.2 Operating and fault messages 73
10.2.1 Operating messages 73
10.2.2 Fault messages 75
10.3 Troubleshooting safety sequence/pressure switch 88
11 Sensor characteristics 91
12 Spare parts 92
13 Boiler internal wiring diagram 116
14 Examples of Installations 117
14.1 Boiler, low-loss header, AM10 117
14.2 Boiler, low-loss header, Logamatic 4000 118
14.3 2 Boilers , low-loss header, Logamatic 4000
with FM 456 Module 119
Index 120

Buderus Logano plus GB312 Specifications

General

Brand	Buderus
Model	Logano plus GB312
Category	Boiler
Language	English