Buderus Logano plus GB312 Installation Guide

Contents
Logano plus GB312 - Technical specifications are subject to change without prior notice
2
Contents
1 General safety instructions and explanation of
symbols 4
1.1 Safety instructions 4
1.2 Explanation of symbols 5
2 Details of the product 6
2.1 Intended use 6
2.2 Standards, regulations and directives 6
2.2.1 National regulations 6
2.3 Compliance with standards and regulations 6
2.3.1 Massachusetts installations only 7
2.4 Notes on installation and operation 8
2.4.1 Other important information 8
2.5 Heating system water quality 8
2.6 Tools, materials and equipment 8
2.7 Disposal 8
2.8 Product description 9
2.9 Package contents 11
2.10 Dimensions and specifications 12
2.10.1 Logano plus GB312 dimensions 12
2.10.2 Specifications 13
3 Transporting the boiler 15
3.1 Lifting and carrying the boiler 15
3.2 Transporting the boiler on rollers 17
4 Installing the boiler 18
4.1 Boiler room requirements 18
4.2 Recommended wall clearances 19
4.3 Leveling the boiler 19
5 Openings for combustion air supply
and venting 20
6 Installing the boiler 22
6.1 Connecting the flue pipe to the boiler 24
6.2 Installing the flue system 24
6.3 Installing the wall exit for a horizontal flue 25
6.4 Installation of the roof penetration of a vertical flue
systems 26
6.5 Connecting the air supply (for direct vent operations)26
6.6 Installing the wall exit for the air pipe 27
6.7 Installing the roof exit for the air pipe 27
6.8 Design of flue and air pipe for direct vent operation 28
6.9 Connecting the heating system 29
6.9.1 General safety instructions 29
6.9.2 Connecting the boiler to the heating system 30
6.9.3 Installing B-Kit 30
6.9.4 Connecting the central heating supply 32
6.9.5 Fitting the heating system return 32
6.9.6 Installing the DHW Tank 32
6.9.7 Installing the condensate drain 33
6.10 Filling the heating system and checking for leaks 34
6.11 Connecting the fuel supply 36
6.11.1 Installing gas feed 36
6.11.2 Installation at high altitudes 37
6.12 Electrical connections 38
6.12.1 Connecting the main power supply 38
6.12.2 Leveling the boiler 40
7 Recommissioning the heating system 41
7.1 Checking the operating pressure 42
7.2 Checking for leaks 43
7.3 Checking appliance equipment 43
7.4 Checking the air supply/ventilation and flue pipe
connection 44
7.5 Checking the air inlet diaphragm 44
7.6 Purging the gas pipe 45
7.7 Making the heating system ready for operation 45
7.8 Commissioning the control unit and burner without
programming unit RC35 45
7.9 Commissioning the control unit and burner with
programming unit RC35 45
7.9.1 Boiler intended to be used with Logamatic 4000 45
7.9.2 Boiler intended to be used with RC35 46
7.9.3 Continuing commissioning procedure with RC35 46
7.10 Switching on the boiler on the BC10 46
7.10.1 Conducting a flue gas test 47
7.10.2 Opening the Service menu and viewing monitor
data on the RC35 47
7.11 Adjusting and checking CO2 level
at maximum output 48
7.11.1 CO2 content, natural gas type A 48
7.12 Adjusting and checking CO2 level
at minimum output 48
7.12.1 CO2 content, natural gas type A (minimum output) 49
7.12.2 Reading off and comparing CO2 levels 49
7.13 Checking and monitoring CO2 level
at maximum output 49
7.14 Recording measured values 49
7.14.1 Switching the status display on the BC 10
to show the boiler temperature 50
7.14.2 Returning to operating mode from the flue gas test 50
7.14.3 Flue pressure 50
7.14.4 Carbon monoxide content 50
7.15 Function checks 51
7.15.1 Checking the (flame) ionization current 51
7.16 Measuring the gas supply dynamic pressure 52
7.17 Checking for leaks during operation 52
7.18 Fitting outer casing components 53

Buderus Logano plus GB312 Specifications

General

Brand	Buderus
Model	Logano plus GB312
Category	Boiler
Language	English