Introduction; Notes On The Documentation; Applicable Documents; Retention Of Documents - Vaillant ecoTEC plus 612 Instructions For Installation And Servicing

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1 Introduction

1
Introduction
1.1

Notes on the documentation

The following information is intended to help you
throughout the entire documentation.
Further documents apply in combination with this instal-
lation and maintenance manual.
We assume no liability for any damage caused by
non-observance of these manuals.
1.1.1

Applicable documents

The following additional documents are provided with
the appliance:
For the owner of the system:
Instructions for use
Brief users instructions
(only ecoTEC plus)
Warranty card with return envelope
For the qualified technician:
Instructions for installation and servicing no. 839592
Flue installation instructions
The manuals for any accessories and controllers used
also apply.

1.1.2 Retention of documents

Please pass on this installation manual to the owner of
the system. The owner should retain the manuals so that
they are available when required.
1.1.3

Safety instructions and symbols

Please observe the safety instructions in this manual for
the installation of the appliance!
Symbols used in the manual are explained below:
Danger!
Immediate danger to life and limb!
Danger!
Risk of death from electric shock!
Danger!
Risk of burns or scalding!
Caution!
Potentially dangerous situation for the product
and environment!
Note
Useful information and instructions.
• Symbol for a necessary task
4
Supplied By www.heating spares.co Tel. 0161 620 6677
1.2
Introduction
Note
This boiler must be installed and serviced by a
competent person in accordance with the Gas
Safety (Installation and Use) Regulations 1998.
In the UK 'CORGI' registered installers under-
take the work in compliance with safe and sat-
isfactory standard.
ecoTEC combination boiler
The ecoTEC combination boiler is a fully automatic, wall
mounted, room sealed condensing (high efficiency) boil-
er for central heating and domestic hot water.
Domestic hot water is supplied directly from the boiler,
Nr. 838402
without requiring a copper cylinder, cold water tank,
feed and expansion vessel and associated pipework.
no. 838404
Domestic hot water has priority over central heating.
no. 802922
The ecoTEC plus combination boiler consists of 3 models
with outputs of 23 kW, 31 kW and 37 kW for domestic hot
water and two pro versions with outputs of 24 kW and
28 kW for domestic hot water.
no. 834449
All versions are available in natural gas. The ecoTEC plus
831 is also available in LPG.
ecoTEC combination boilers incorporate a warm start
facility that keeps the domestic hot water heat exchang-
er hot, providing an instantaneous delivery of domestic
hot water. The temperature in the domestic hot water
heat exchanger is limited by the boiler control system
and it is not necessary to install a scale reducer on the
cold mains to the boiler. However, in areas that get
exceptionally hard water, a scale reducer may be fitted
to prevent scale formation in the hot water system
pipes. The heating system on ecoTEC plus combination
boilers can be filled using the built–in filling loop con-
tained within the boiler.
ecoTEC system boiler
The ecoTEC system boiler is a fully automatic, wall
mounted, room sealed condensing (high efficiency) boil-
er for central heating and domestic hot water (where a
separate indirect hot water storage cylinder is also
incorporated in the system). The ecoTEC system boiler
consists of models with outputs of 12, 15, 18, 24, 30 and
37 kW. All ecoTEC system boilers are available in Natural
Gas. The ecoTEC plus 618 and 630 are also available in
LPG.
1.3

General Notes

The boilers have been designed for use with a sealed
central heating system, and come fully tested and
assembled with a built in circulating pump, expansion
vessel and diverter valve (ecoTEC combination boilers).
The boilers are easily mounted on any internal wall and
can be installed with either a horizontal or vertical RSF
(room sealed fan assisted) flue.
The boilers use a standard flue system (100 mm or
125 mm outside diameter). Flue extensions and addition-
al bends and elbows are available for the flue system to
Instructions for installation and servicing ecoTEC

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