Grant Spira 6-26 kW, Spira 9-36 kW User Instruction

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IRL NO.012 Rev; 0 April 2011

USER INSTRUCTION

for

GRANT SPIRA 6-26 kW CONDENSING WOOD PELLET BOILER

GRANT SPIRA 9-36 kW CONDENSING WOOD PELLET BOILER

Leave the user manual with the householder.

This appliance is deemed a control service and specific regional statutory requirements

may be applicable.

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Contents
Section Page

1 Introduction 3
2 About your boiler 3
3 About your Fuel 4
4 Cleaning and servicing you boiler 5
5 User controls 5
6 Burner display 6
7 Priming the auger 7
8 Lighting the boiler 7
9 Emptying the ash 8
10 If you boiler fails to light 9
11 Ventilation 10
12 Frost protection 10
13 Electricity supply 10
14 Sealed Central heating system 10
15 Visual guide to assess Wood pellet Quality 11
16 Service log 12

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1. Introduction

This guide is intended to assist and instruct the User
in the operation of the Grant SPIRA Condensing
Wood Pellet Boiler. A separate manual is available to
Engineers for the installation, servicing and
commissioning of the boiler.

The following special text formats are used in this
manual of the purposes listed below;

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

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

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

2. About your boiler.

Your Grant SPIRA wood pellet boiler should only be
installed, commissioned and serviced by a FETAC
registered Engineer. They are also required to have
undergone specific product training by Grant
Engineering (Ireland) Ltd.

When commissioned correctly, your Grant SPIRA
condensing wood pellet boiler operates automatically
as it is equipped with an automatic cleaning system.
The ash pan will need to be emptied after each 3
tonnes of pellet consumption and serviced annually by
a Service Engineer who has completed the Grant
training course. Details of each service should be
recorded in the Service Log in the back of this
manual.

The burner is equipped with a brazier where the
combustion of the wood pellets takes place within the
boiler. The self cleaning device on the brazier and
boiler activates after the auger run time has exceeded
a predetermined set time. The auger run time for
brazier and boiler cleaning is set in the burner menu.
Both cleaning functions may be activated at different
stages, this is normal.

As long as there are sufficient pellets in the hopper,
the system is „calling‟ and the auger is charged then
the boiler is fully automatic once switched on,
providing central heating and also heating your
domestic hot water if you have a cylinder fitted.

If your appliance is controlled by a remote
programmer and/or a room thermostat, it will provide
hot water and central heating during the periods as
set on the programmer, when either the room
thermostat and or the hot water thermostat are calling.

The system comes complete with an intermediate
hopper. This hopper stores 110 kg (169 lt.) of wood
pellets. The hopper is for indoor use only and should
be positioned in a dry environment. As the hopper
comes with castors, allow sufficient area in front of the
hopper for removal during servicing. The hopper
should be filled to the point where it is still possible to
close the top door.

Do not adjust or modify the appliance in anyway as to
do so could cause malfunction of the appliance, injury
to persons or death or result in a potential fire hazard.
Only allow a qualified Service Engineer who has
completed the Grant training course should carry out
any work on the appliance.

All national and local regulations and European
Standards shall be complied with during the operation
of the appliance.

Always ensure the front access door of the

combustion chamber is fully closed and latched

during operation.

Certain external surface of the boiler will be hot to

touch when in operation, due care is needed.

WARNING

!

CAUTION

!

NOTE

!

WARNING

!

WARNING

!

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3. About your Fuel

Once your boiler has been commissioned the burner settings are adjusted for use with that fuel. Only use one of following wood
pellet brands with the Grant Wood pellet boiler.

6mm „BNM Premium‟,
6mm „Balcas Brites‟

6mm „GWP‟ pellets.
If the Commissioning Engineer has commissioned your boiler for use with an alternative fuel supplier (other than that listed
above) check with Grant Engineering (Ireland) Limited as you may need to have the boiler recommissioned if you plan to change
your fuel supplier. Each bulk pellet manufacturer has clear guidelines on the requirements of a bulk storage hopper used to store
their pellets together with requirements on positioning, access, and minimum deliveries. Check with the pellet supplier
/manufacturer you wish to use before installing your bulk hopper system.

This Grant SPIRA boiler is designed to run on wood pellets that meet the following criteria;

Key Parameter

Limits

Category as per
prCEN/TS 14961:2004

Diameter

6mm

D06,

Average length

L<5 x diameter

Maximum length

40mm

Moisture Content

<10%

S0.05

Mechanical durability

>97.5%

DU 97.5

Amount of fines

<1.0%

F1.0

Additives

None

Nitrogen

< 0.3%

N0.3

Nett calorific value

Ca. 4.8 to 5.2 kWh/kg

Bulk density

Ca 650 kg/m3

Chlorine

< 0.03%

CL 0.03

Additives; Additives are used to improve the stability of the pellets. If manufactured correctly, and of a sufficiently low moisture content, quality

pellets will require no additives.

Ash; Ash represents the non-combustible content of the pellet. Higher ash content reduces the calorific value of the pellet and requires

the appliance to be cleaned more frequently.

Average length: To provide a predictable flow of fuel into the burner, the recommended length of a pellet is deemed greater than 5mm and less than

5 times the diameter.

Bulk density; Bulk density is the ratio between the weight of the pellet and the amount of space they take up. A good quality pellet will have a

density of 650 kg/m3.
Chlorine; High levels of chlorine in the flue gases emissions can give rise to corrosion.
Diameter The most common diameter is 6mm with some 8mm also available. This boiler is designed for 6mm only.
Fines Pellets are made from compressed wood. As pellets rub together they can break down slightly, producing dust or fines. Too many

fines indicate a poor quality pellet and can impede pellet flow in addition to causing dust problems when delivering and storing the

pellets.
Mechanical Durability This is a measure of how stable the pellet is and how likely it is to produce fines from normal handling. A high durability percentage

is an indicator of a good quality pellet.
Moisture content Moisture affects the calorific value of the pellet. Low moisture content guarantees constant and predictable combustion efficiency.

Higher moisture contents can result in pellet breakdown.
Net Calorific Value This is the useful energy contained in a kilogram of fuel. This value is affected by the amount of non-combustible materials (ash)

and the moisture content of the pellet. Typical values range from 4.8 kWh/kg to 5.2 kWh/kg.
Nitrogen High levels of nitrogen in the flue gases emissions can give rise to corrosion.
Sulphur High levels of sulphur in the flue gases emissions can give rise to corrosion.