Grant VTXBH1521, VTXBH2635, VTXBH2126, VTXBH3646, VTXBH5870 User Handbook Manual

UK | DOC 0117 | Rev 1.1 | November 2017

Grant Vortex

Boiler House Floor Standing Condensing Oil
Boiler Range

User Handbook

Model shown: VTXBH3646

GRANT ENGINEERING (UK) LIMITED

Hopton House, Hopton Industrial Estate, Devizes, Wiltshire, SN10 2EU

Tel: [phone] Fax: [phone]

Email: [e-mail] www.grantuk.com

This manual is accurate at the date of printing but will be superseded and should be disregarded if specications and/or appearances are changed in the interests of continued product improve­ment. However, no responsibility of any kind for any injury, death, loss, damage or delay however caused resulting from the use of this manual can be accepted by Grant Engineering (UK)
Limited, the author or others involved in its publication.

All good sold are subject to our ofcial Conditions of Sale, a copy of which may be obtained on application.

© Grant Engineering (UK) Limited. No part of this manual may be reproduced by any means without prior written consent.

IMPORTANT NOTE FOR USERS

This user handbook is intended to assist the user in the operation
of the Grant Vortex oil boiler.

A separate manual is available to guide installers on the
installation, commissioning and servicing of the Grant Vortex oil
boiler.

SPECIAL TEXT FORMATS

The following special text formats are used in this user handbook
for the purposes listed below:

! WARNING !

Warning of possible human injury as a consequence of not
following the instructions in the warning.

! CAUTION !

Caution concerning likely damage to equipment or tools
as a consequence of not following the instructions in the
caution.

! NOTE !

Used for emphasis or information not directly concerned
with the surrounding text but of importance to the reader.

PRODUCT CODES COVERED

This user handbook covers the following product codes:
VTXBH1521, VTXBH2126, VTXBH2635, VTXBH3646,

VTXBH4658 and VTXBH5870.

SERVICING

The boiler should be serviced at least every twelve months and
the details entered in the Service Log in this User Handbook.

FUEL TYPE

All Grant Vortex boilers are suitable for use with Class C2

Kerosene. If your boiler uses Bio-Kerosene (B30K), refer to the
installation and servicing instructions.

Page 2

1 INTRODUCTION 4

What the installer should leave you with 4
What to do now 4
Our guarantee 4
When should the boiler be serviced 4
Boiler data plate 4
User safety 4

2 USING YOUR BOILER 5

Boiler operation 5
The boiler controls and how to use them 5
The heating controls and how to use them 5

Turning the boiler ON/OFF 6

Fuel for your boiler 7
Electricity supply 7

3 CARE OF YOUR BOILER 7

Checking system pressure 7

(sealed system only)
Expansion vessel 8
(sealed system only)
Ventilation 8
Flue terminal and condensate disposal 8
Servicing 9

Cleaning your boiler 9

Frost protection 9

Contents Page 3

4 FAULT FINDING 10

If your boiler fails to start 10

5 AFTER SALES SERVICE 11

Grant UK Customer Support 11

6 YOUR GUARANTEE 12

7 SERVICE LOG 14

This appliance can be used by children aged from 8 years and above and persons with
reduced physical, sensory or mental capabilities or lack of experience and knowledge
if they have been given supervision or instruction concerning use of the appliance in a
safe way and understand the hazards involved. Children shall not play with the appliance.
Cleaning and user maintenance shall not be made by children without supervision.

CONTENTS

User HandbookPage 4

1 INTRODUCTION

Thank you for choosing a Grant Vortex high

efciency oil-red boiler.

This appliance has been designed to provide
you with years of trouble free operation.
However, it is important to ensure that regular
servicing is carried out.

Please take time to read the following useful
information and retain this user handbook to
record all future servicing.

What the installer should
leave you with

• A completed OFTEC CD10 (installation

completion report)

• A completed OFTEC CD11 (service and

commissioning report)

• The installation and servicing instructions

• This user handbook

The installer should have advised you how to
operate the boiler and controls and where a

sealed system is tted, how to check and top

up the heating system (if applicable).

Commissioning?

Following installation, your boiler should be
commissioned by a ‘competent person’, such

as an OFTEC Registered Engineer, to validate

the guarantee.

The boiler will be set to its optimum efciency
using specialist ue gas analysis equipment.

Your installer should arrange for this to be

carried out. If required, Grant UK can provide

details of commissioning engineers in your
area.

What to do now

Your installer may have registered the product
on your behalf and provided you with the
relevant documentation. Should this not be the
case, you can register your guarantee online
at:

www.grantuk.com/support/product-registration

Alternatively, please call 01380 736920 and

ask for Customer Services..

Upon completion of the product registration,
Grant UK will register your boiler for two years.

There is also an option to take out extended
warranty cover (the application is available on
the Grant UK website).

We recommend that you complete the

required information on the back cover of this

user handbook for future reference.

Our guarantee

The boiler is automatically covered against
manufacturing defects for twelve months from
the date of purchase*.

A further twelve months cover will be applied
upon receipt by Grant UK of the completed
guarantee within thirty days of installation.

To register your boiler visit: www.grantuk.com

The steel heat exchanger is covered for ve

years against manufacturing defects. For
the guarantee to apply, the boiler must be
installed, commissioned and operated in
accordance with the installation and servicing
instructions provided.

* Terms & Conditions apply. Refer to Section 6.

When should the boiler be
serviced?

A service must be completed every 12 months
from the date of installation to maintain your
guarantee. This is also a condition of the
second year manufacturer’s guarantee.

The nozzle and braided oil hose should be
replaced annually and on sealed systems, the
expansion vessel air charge must be checked.

Please make sure that your engineer has
recorded the service information in the Service
Log at the rear of this user handbook. You will
be asked for your service history on any in­guarantee repair visit.

Boiler data plate

The data label can be found on the top casing
panel of the boiler.

You should record the relevant information on
the rear cover of this user handbook for future
reference.

User safety

! WARNING !

Interference with the boiler (or any sealed component) is
strictly forbidden other than where information is given in
these instructions.

Incorrect use of the boiler can result in danger to the user
and will invalidate the guarantee.

User handbook Page 5

2 USING YOUR

BOILER

Boiler operation

Your boiler is fully automatic once switched
on, providing you with central heating and also
heating your domestic hot water (if you have a

hot water cylinder tted as part of the system).

For more information, refer to ‘The heating
controls and how to use them’.

The boiler controls and how
to use them

Your boiler is tted with a dual thermostat

control. This is located on the top of the boiler.

Figure 2-1: Dual thermostat

This dual thermostat incorporates two
separate temperature controls:

The boiler thermostat 

This controls the temperature of the water

owing from your boiler to the heating system.

This should have been set by your installer to

the required temperature and should not be

adjusted.

The overheat thermostat 

This is a safety device which will automatically
switch off your boiler should it overheat for any
reason.

The burner reset button 

If there is a problem with the burner tted to

your boiler, a built-in safety system switches
the burner OFF and the red lockout reset
button on the burner will be lit.

Figure 2-2: Burner reset button

Usually such problems are short lived and
simply pressing the lockout reset button after
waiting a short while will restore normal burner
and boiler operation.

The heating controls and
how to use them

Your Grant Vortex Boiler House boiler will
usually be controlled by a domestic heating
control system.

The information below is only a general
description of the heating and hot water
system controls that you may have.

The operation and setting of these system
controls should have been explained to you by
your installer.

For full details of the correct setting and
operation, always refer to the manufacturer’s
user instructions provided with each of these
controls.

This control system will typically consist of the
following controls:

A heating timer or programmer

This device allows you to set the ON and
OFF times for your heating and (if it is a
programmer) the ON and OFF times for

your hot water heating also. Refer to the

manufacturer’s user instructions for guidance.