Introduction; About The Device; What To Do When You Smell Gas; Regulations - A.O. Smith TWI 35-130 Instruction Manual

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1.1

About the device

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1.2 What to do when you
smell gas
1.3

Regulations

Instruction manual TWI 35-130 G/TWI 45-190 G

Introduction

This manual describes the installation, service and use of the TWI-device.
The TWI-device is a condensating boiler with a fan in the air supply. The TWI can
be installed both as a closed and as an open device. The device typically has a
concentric chimney connection. The device can also be connected as a parallel
system.
The possible device types are B23, C13, C33, C43, C53 and C63.
The information in this manual is applicable to the TWI 35-130 and TWI 45-190.
The construction method and the equipment of the device are in conformity with
the European standard for gas-fi red storage water heaters for the production
of domestic hot water (EN 89). With this the devices comply with the European
Directive for Gas Devices and so they have the right to the CE -mark.
Warning
Carefully read this manual before starting up the boiler. Not reading this
manual and not following the given instructions may lead to personal injuries and
damage to the device.
Warning
In case of smelling gas:
No open fi re! No smoking!
Avoid sparking!
Do not use any electric switches, including telephone, plug or bell!
Open windows and doors!
Shut off the mains gas supply valve!
Warn occupants and leave the building!
After having left the building, warn the gas company or the installation engineer.
As (end) user, installation engineer or service and maintenance engineer
you shall make sure that the entire installation at least complies with the
locally applicable:
• building regulations;
• guidelines for existing gas systems formulated by the electricity company;
• guidelines for natural gas systems and the corresponding practical
guidelines;
• safety regulations for low-voltage systems;
• regulations concerning drinking water supply;
• regulations concerning ventilation in buildings;
• regulations concerning supply of combustion air;
• regulations concerning discharge of fl ue gasses;
• requirements for gas-consuming systems;
• regulations concerning inside sewer systems in buildings;
• regulations of the fi re department, electricity companies and the
municipality.
Further the installation shall comply with the regulations of the manufacturer.
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