Grant Vortex Eco VTXWH12/16, Vortex Eco Series, Vortex Eco VTXWH16/21, Vortex Eco VTXSWH12/16, Vortex Eco VTXSWH16/21 Installation And Servicing Instructions

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Grant Vortex Eco

Internal Wall Hung Condensing Oil Boiler Range

Installation and Servicing Instructions

UK | DOC 0126 | Rev 1.1 | October 2018

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IMPORTANT NOTE FOR INSTALLERS

These instructions are intended to guide installers on the installation, commissioning and servicing of the Grant Vortex oil boiler. After installing the boiler, leave these instructions with the user.

A user handbook is available to guide users in the operation of the oil boiler.

SPECIAL TEXT FORMATS

The following special text formats are used in these instructions 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 AND SERIAL NUMBERS COVERED

The serial numbers used on Grant oil boilers consist of a fteen digit numerical code with the nal three digits being the product identier.

For example: 100000200218767 These instructions cover the following product codes and serial

numbers:

Product code Serial number identier

VTXWH12/16 767

VTXWH16/21 769

VTXSWH12/16 768

VTXSWH16/21 770

SERVICING

The boiler should be serviced at least every twelve months and the details entered in the Service Log in the user handbook.

FUEL TYPE

All Grant Vortex boilers are suitable for use with Class C2 Kerosene. To use Bio-Kerosene (B30K), refer to the information below:

OPERATION ON BIO-FUEL

All Grant Vortex condensing boilers manufactured since May 2011 are suitable for operation on both standard Kerosene (Class C2 to BS 2869) and also bio-kerosene - up to a 30% blend (B30K).

All burner settings and nozzle sizes (as detailed in Section 2.2 of these instructions) are correct for both standard kerosene and biokerosene (B30K).

In order to operate this boiler on bio-kerosene, it will be necessary to take the following actions:

• Use a bio-kerosene (B30K) compatible exible oil line in

place of the oil line supplied with the boiler.

• Have the oil storage tank and oil supply line (including all pipework, sight gauges, lters, isolating valves, re valves,

de-aeration devices, etc.) checked for their compatibility with bio-kerosene (B30K).

Where necessary, some or all of these items may have to be replaced with a bio-kerosene compatible alternative.

• Check the suitability of the ue system with Grant UK.

• Use only bio-kerosene (B30K) that conforms to OPS24.

IMPORTANT: Under no circumstances, should the boiler be used with

bio-kerosene without the above actions being taken rst.

GRANT ENGINEERING (UK) LIMITED

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

Tel: +44 (0)1380 736920 Fax: +44 (0)1380 736991

Email: [email protected] www.grantuk.com

This manual is accurate at the date of printing but will be superseded and should be disregarded if specifications 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 official Conditions of Sale, a copy of which may be obtained on application.

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Page 3

1 INTRODUCTION 4

1.1 How a condensing boiler operates 4

1.2 Boiler description 4

1.3 Flue options 4

1.4 Boiler components 5

2 TECHNICAL DATA 6

2.1 Boiler technical data 6

2.2 Sealed system data 6

2.3 Burner settings 7

2.4 Flue gas analysis 7

2.5 Water connections 7

2.6 Boiler dimensions 8

3 OIL STORAGE AND SUPPLY SYSTEM 9

3.1 Fuel supply 9

3.2 Burner oil connection 11

4 INSTALLATION 13

4.1 Introduction 13

4.2 Boiler location 13

4.3 Regulations 13

4.4 Heating system design 13 considerations

4.5 Pipework materials 14

4.6 Connections 14

4.7 Preparation for installation 14

4.8 Dismantling the boiler 14

4.9 Installing the boiler 16

4.10 Before you commission 17

4.11 Completion 17

5 PIPE CONNECTIONS 18

5.1 Water connections 18

5.2 Water connections - system models 18

6 CONDENSATE DISPOSAL 19

6.1 General requirements 19

6.2 Connections 19

6.3 Pipework 19

6.4 External pipework 19

6.5 Condensate soakaway 20

6.6 Condensate trap 20

6.7 Condensate disposal pipework 20

6.8 Inspection and cleaning of trap 20

9 FLUE SYSTEM AND AIR SUPPLY 28

9.1 Air supply 28

9.2 Conventional ue systems 28

9.3 Connecting a conventional ue 31

9.4 Balanced ue systems 31

9.5 Prepare the wall 35

9.6 Flue clearances 36

10 COMMISSIONING 38

10.1 Before switching on 39

10.2 Burner settings: 39

10.3 Switching on 40

10.4 Running the boiler 41

10.5 Balancing the system 41

10.6 Completion 41

11 SERVICING 42

11.1 Checks before servicing 42

11.2 Dismantling prior to servicing 42

11.3 Cleaning the boiler 43

11.4 Cleaning the burner 43

12 FAULT FINDING 45

13 SPARE PARTS 48

14 DECLARATION OF CONFORMITY 50

15 HEALTH AND SAFETY INFORMATION 51

15.1 Insulation materials 51

15.2 Sealant and adhesive 51

15.3 Kerosene and Gas Oil fuels 51

16 END OF LIFE INFORMATION 52

17 PRODUCT FICHE 53

17 GUARANTEE 54

7 SEALED SYSTEMS 21

7.1 Sealed system requirements 21

7.2 Filling the sealed system 22

7.3 Venting the pump 22

7.3 Pressure relief (safety) valve 22 operation

8 ELECTRICAL 23

8.1 General 23

8.2 Connecting the power supply 23

8.3 Frost protection 23

8.4 Control system wiring diagrams 24

8.5 Boiler control panel wiring diagrams 26

Contents Page 3

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1 INTRODUCTION

1.1 HOW A CONDENSING BOILER OPERATES

During the combustion process, hydrogen and oxygen combine to produce heat and water vapour. The water vapour produced is in the form of superheated steam in the heat exchanger. This superheated steam contains sensible heat (available heat) and

latent heat (heat locked up in the ue gas). A conventional boiler

cannot recover any of the latent heat and this energy is lost to the

atmosphere through the ue.

The Grant Vortex condensing boiler contains an extra heat exchanger which is designed to recover the latent heat normally

lost by a conventional boiler. It does this by cooling the ue gases

to below 90°C, thus extracting more sensible heat and some of

the latent heat. This is achieved by cooling the ue gases to their

dew point (approximately 55°C).

To ensure maximum efciency, the boiler return temperature

should be 55°C or less, this will enable the latent heat to be

condensed out of the ue gases.

• The boiler will achieve net thermal efciencies of 100%.

To achieve maximum performance from the Grant Vortex boiler, it is recommended that the heating system is designed so that a

temperature differential of 20°C between the ow and return is

maintained. The Grant Vortex boiler will however still operate at extremely

high efciencies even when it is not in condensing mode and therefore is suitable for tting to an existing heating system

without alteration to the radiator sizes. The boiler is capable of a

maximum ow temperature of 78°C.

1.2 BOILER DESCRIPTION

The Grant Vortex Eco Wall Hung range of automatic pressure jet oil boilers have been designed for use with a fully pumped central heating system with indirect domestic hot water cylinder.

They are not suitable for use with either a direct cylinder or a ‘primatic’ cylinder or gravity hot water.

The boilers are suitable for use on open vented or sealed central heating systems. System models are supplied with the necessary

components factory tted. Refer to Section 7.

All boilers are supplied with the control panel and burner factory

tted.

All the models in the current Grant Vortex Pro range of boilers are designed to comply with the maximum NOx emissions* under the Energy-related Products Directive (ErP).

* From the 26th September 2018, the maximum NOx emissions

for all new oil red boilers (up to and including 400kW for both

new build and replacement boiler installations) is 120mg/kWh.

1.3 FLUE OPTIONS

The boilers can be connected to either a conventional ue system or a balanced ue system, as required.

1.3.1 FOR CONVENTIONAL FLUE APPLICATIONS

Where a chimney is to be lined - Grant recommends the use

of the Grant ‘Orange’ ue system, specically designed for the

Vortex range of condensing boilers. Refer to Section 9.2 for further details.

Where a rigid conventional ue - either internal or external - is

required, Grant recommends the use of the Grant ‘Green’ and

‘Orange’ ue system components. As no ue adaptor is supplied

with the boiler it will be necessary to purchase the Grant CF adaptor kit in order to correctly connect this system to the boiler.

Flue adaptor kit (Grant product code: CFA15/70) is used for all models as they all use the 100 mm ‘Green’ and ‘Orange’ system

components to construct a ue of maximum vertical height of 8

metres.

! NOTE !

The ue system materials and construction MUST be suitable for use with oil-red condensing boilers. Failure to t a suitable conventional ue may invalidate the

guarantee on the boiler.

1.3.2 FOR BALANCED FLUE APPLICATIONS

The following ue kits are available from Grant UK. Refer to

Section 9.4.

Yellow system

Standard low level concentric balanced ue - components

available:

• Low level concentric balanced ue short

• Extensions 225 mm, 450 mm and 675 mm

• 90° extension elbow

• 45° extension elbow

• 45° elbow

• Plume diverter kits

Green system

Standard external high level/vertical ue starter kit (room sealed) -

components available:

• External high level/vertical ue starter kit short (room sealed)

• Extensions 150 mm, 250 mm, 450 mm, 950 mm

• Adjustable extension 195 to 270 mm

• 45° elbow

• High level terminal

• Vertical terminal

White system

High level and vertical concentric balanced ue kit- components

available:

• Extensions 225 mm, 450 mm, 950 mm

• Adjustable 275 to 450 mm

• Vertical concentric balanced ue kit

• Extensions 225 mm, 450 mm, 950 mm

• Adjustable extension 275 to 450 mm

• 45° elbow

Red system

A exible vertical balanced ue system designed to be tted inside

an existing masonry chimney. Consisting of three sections:

• Concentric white painted ue pipe connected to the boiler

• Vertical concentric exible ue (exible stainless steel ue liner

inside a stainless steel air inlet liner)

• Terminal assembly for chimney top mounting

Flue extensions and 45° elbows from the White system may be used.

Fitting instructions for the Low level, High level and Vertical

balanced ue systems are supplied with the kits.

Section 1: IntroductionPage 4

Page 5

1.4 BOILER COMPONENTS

All burners are pre-set for use with kerosene and are supplied ready to connect to a two pipe fuel supply system with a two

exible fuel lines and 3/8ʺ to 1/4ʺ BSP male adaptor supplied with

the boiler. The temperature of the water leaving the boiler to heat the

radiators and hot water cylinder is user adjustable.

The boiler is tted with an overheat thermostat (which allows

it to be used on a sealed central heating system) which will automatically switch off the boiler if the heat exchanger exceeds a pre-set temperature of 110°C ± 3°C.

The control panel is tted with an ON/OFF switch, boiler

thermostat control knob and the manual reset button for the overheat thermostat.

To access the controls, open the lower front panel by pulling it down as shown in Figure 1-1.

Figure 1-2 shows the details of the control panel.

Figure 1-1: Boiler lower front panel in down position

Figure 1-2: Vortex Pro boiler control panel

Section 1: Introduction Page 5

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2 TECHNICAL DATA

2.1 BOILER TECHNICAL DATA

Table 2-1: Boiler technical data

Units

Water content

Weight - complete boiler (dry)

Weight - boiler shell only (dry)*

Maximum heat output (Kerosene)

Minimum ow rate (∆T=10°C) l/h 1,410 1,800 1,410 1,800

Minimum ow rate (∆T=20°C) l/h 730 900 730 900

Condensate connection Accepts 21.5 mm Ø polypropylene overow pipe

Flue diameter (conventional) mm 100

Waterside resistance ∆T=10°C mbar 28.5

Waterside resistance ∆T=20°C mbar 10.0

Maximum static head m 28

Minimum circulating head m 1

Boiler thermostat range °C 65 to 78

Limit (safety) thermostat shut off temperature

Maximum casing temperature °C Less than 50

Electricity supply ~230 1ph 50Hz 5A fused

Burner motor power Watts 75

Absorbed motor power kW 0.155 0.143

Starting current Amps 2.7

Running current Amps 0.67

Oil connection ¼ʺ BSP male (on end of exible fuel hose)

Conventional ue draught

Maximum operating pressure sealed/open system

Maximum operating pressure pressure relief valve

Boiler type ON/OFF

* Weight of shell - without bafes and clean out door: 45.5kg

litre 11 11 11 11

gal 2.4 2.4 2.4 2.4

kg 91.1 91.1 98.0 98.0

lb 200.8 200.8 216.1 216.1

kg 56.5 56.5 56.5 56.5

lb 124.6 124.6 124.6 124.6

kW 16.5 21.0 16.5 21.0

Btu/h 56,300 71,700 56,300 71,700

°C 110 ± 3

mbar Minimum: 0.087 - Maximum: 0.37

in wg Minimum: 0.035 - Maximum: 0.15

bar 2.0

bar 2.5

Internal Wall Hung Internal System Wall Hung

12/16 16/21 12/16 16/21

2.2 SEALED SYSTEM DATA

Internal System 12/16 and 16/21

Heating system pressure (cold) Minimum 0.5 bar | Maximum 1.0 bar

Operating pressure of pressure relief valve 2.5 bar

Expansion vessel size (pre-charged at 1 bar) 8 litres

Maximum heating system volume (including boiler)* 85 litres

Cold water mains connection 15 mm compression (supplied)

Pressure relief valve discharge connection 15 mm compression (supplied)

* Based on vessel charge and system cold ll pressure of 0.5 bar

Section 2: Technical DataPage 6

Page 7

2.3 BURNER SETTINGS

Table 2-2: Burner settings

Boiler models (burner

type)

Internal and

Internal

System 12/16

(Ecoam

Max 1 LN

Vortex WM

12-16 ERP)

Internal and

Internal

System 16/21

(Ecoam

Max 1 LN

Vortex WM

16-21 ERP)

Notes:

‡ Flue gas VFR: Flue gas volumetric ow rate

1. The data given above is approximate only and is based on the boiler being used with a low level balanced ue.

2. The above settings may have to be adjusted on site for the correct operation of the burner.

3. Gas Oil is NOT suitable for use with Grant Vortex boiler range

4. The ue gas temperatures given above are ± 10%.

5. When commissioning, the air damper must be adjusted to obtain the correct CO2 level.

6. * Factory settings: 12/16 - 14kW, 16/21 - 18.7kW.

7. The combustion door test point may be used for CO2 and smoke readings only. Do not use this test point for temperature or efciency readings.

8. The installer must amend the boiler data label if the output is changed.

Heat output

(kW) (Btu/h)

12.7 40,900 0.40/80°S 7 0 - 1 EK 12-16 30.5 1.06 60 - 65 12.5 13.0

14.0 * 47,80 0 0.40/80°EH 9 0 - 1 EK 12-16 31.5 1.17 65 - 69 12.5 15.0

16.5 56,300 0.50/80°EH 8 0 - 1 EK 12-16 32.5 1.38 65 - 69 12.5 17.0

16.5 56,300 0.50/80°EH 7 0 - 1 EK 16-21 29.5 1.38 65 - 69 12.5 17.0

18.7 * 63,800 0.50/80°EH 10 0 - 1 EK 16-21 31.0 1.56 70 - 75 12.5 20.0

21.0 71,700 0.60/80°EH 8 0 - 1 EK 16 - 21 31.0 1.76 75 - 79 12.5 23.0

Nozzle

Oil

pressure

(bar)

Smoke

No.

Burner

head type

Distance between

nozzle and

burner head

Fuel

ow rate

(kg/h)

Flue gas

temp.

(°C)

(%)

Flue gas

VFR ‡

(m³/hr)

2.4 FLUE GAS ANALYSIS

To allow the boiler to be commissioned and serviced, the boiler is supplied with a combustion test point on the front cleaning door. When this test point is used please note the following:

• The test point is for CO

• The boiler efciency and temperature must be taken from the ue test point on high level, vertical and conventional ue adaptors.

• Concentric low level ues do not contain a test point. The temperature and efciency readings must be taken from the ue terminal.

and smoke readings only.

2.5 WATER CONNECTIONS

Table 2-3: Water connections

Boiler model

All models 22 mm Push-t Tectite Fitted 22 mm Push-t Tectite Fitted

Size Fitting Supplied Size Fitting Supplied

Flow connection Return connection

Section 2: Technical Data Page 7

Page 8

2.6 BOILER DIMENSIONS

FRONT VIEW

TOP VIEW

BOTTOM VIEW

RIGHT SIDE VIEW

113

842

630,5

109

144

179

214

249

284

Oil

Flow

Return

Cold Mains

PRV

Condensate

Electricity

221

110

Flow Return Cold Mains Electricity

109

179

144

214

BACK PANEL

221

128 375

102

419

BACK PANEL

221

128 375

102

630,5

100 100 290

842

419

Figure 2-4: Vortex Eco Internal and Internal System 12/16 and 16/21

Section 2: Technical DataPage 8

Page 9

3 OIL STORAGE AND SUPPLY SYSTEM

3.1 FUEL SUPPLY

3.1.1 FUEL STORAGE

The tank should be positioned in accordance with the recommendations given in BS 5410-1 (Code of Practice for Oil Firing - Installations up to 45kW output capacity for space heating and hot water supply purposes). This gives details of the requirements for suitable oil tank construction, tank installation,

tank bases, re protection and secondary containment.

For installations of greater than 45kW output capacity, the tank should be installed accordance with BS 5410-2.

Oil storage tanks should comply with the following standards:

• Plastic tanks OFT T100

• Steel tanks OFT T200

! CAUTION !

A galvanised tank must not be used.

! NOTE !

Plastic tanks should be stood on a rm non-combustible

base that adequately and uniformly supports the weight of the tank over its entire base area.

The tank capacity should be selected to suit the appliance rated output. Refer to BS5410-1 for guidance.

3.1.2 FUEL PIPES

Fuel supply pipes should be either copper or steel. Galvanised

pipes or ttings should not be used.

Plastic oil supply pipe conforming to BS EN 14125 can be used for underground pipe runs, but must not be used above ground.

All soft copper pipe connections should preferably be made using

ared ttings. If compression ttings are to be used, a suitable pipe insert must be tted into the pipe end.

Soft soldered connections must NOT be used on oil supply pipework.

Fuel supply pipework should be of a suitable diameter, depending on the type of oil supply system being used. Refer to information given in sections 3.1.3, 3.1.4 or 3.1.5.

Run pipes as level as possible to prevent air being trapped. Take the most direct route possible from tank to burner whilst locating the pipe where it will be protected from damage.

Pipes should be supported to prevent sagging and sleeved where they pass through a wall.

A metal body fuel lter of no better than 70 μm (micron) must be tted in the oil supply pipe close to the tank. This should be tted with sufcient clearance around and below it to allow easy access

for maintenance.

An isolating valve should also be tted at the tank, before the lter, to allow the oil supply to be shut off for the lter to be serviced.

A second lter (15 μm for Kerosene) must be located closer to the

burner to protect the burner pump and nozzle from contamination. Refer to Figures 3-1 to 3-3.

A remote sensing re valve must be installed in the fuel supply

line in accordance with BS540-1.

A fusible wheelhead type combined isolating/re valve MUST NOT be used in place of a remote sensing re valve.

The re valve must be located outside; just before the oil line enters the building, with the re valve sensor located above the

burner. A spring clip for mounting the sensor is provided with the boiler.

This should be xed with the screw provided, using the small hole

in the front panel of the boiler.

The re valve should be located after the second (15 micron) lter, i.e. between the lter and the point at which the oil line enters the

building. Refer to Figures 3-1 to 3-3.

The re valve must have an operating temperature of between

90 and 95°C to avoid unnecessary nuisance shut-offs to the oil supply.

Two exible fuel hoses, adaptors and ¼ʺ isolating valves are

supplied loose with the boiler, to make the final connection to the burner with a two pipe or ‘Tiger Loop’ type de-aerator.

Metal braided flexible fuel hoses should be replaced ANNUALLY when the boiler is serviced.

Long life flexible fuel hoses should be inspected annually and replaced, if necessary, or after a maximum five years service life.

3.1.3 SINGLE PIPE (GRAVITY) SYSTEM (REFER TO FIGURE 3-1)

Head

(metres)

0.5 19 60 100

1 21 66 100

1.5 23 72 100

2 25 79 100

2.5 27 85 100

3 29 91 100

3.5 31 98 100

If the storage tank outlet is at least 300 mm above the level of the level of the burner oil pump, a single pipe (gravity) system should be used.

The maximum height of the oil level above the burner oil pump when the tank is full, must not exceed four metres. If this height

is exceeded, a pressure reducing valve must be tted in the oil

supply pipe between the tank and the burner oil pump. The maximum length of pipe run from the tank to the burner is

limited by the minimum head of oil (the height of the tank outlet above the burner oil pump).

Ø 6 mm Ø 8 mm Ø 10 mm

Maximum pipe run (m)

3.1.4 TWO PIPE SYSTEM (REFER TO FIGURE 3-2)

Head

(metres)

0.5 15 47 100

1 13 41 99

1.5 11 34 84

2 9 28 68

2.5 7 22 53

3 5 15 37

3.5 - 9 22

If the storage tank outlet is below the level of the burner oil pump, a two pipe (sub gravity) system can be used.

The return pipe should be at the same level as the tank outlet, between 75 to 100 mm above the base of the tank. The return

pipe should be a sufcient distance from the tank outlet so as to

prevent any sediment disturbed by the return entering the supply pipe from the tank.

A non-return valve should be tted in the supply pipe, along with a re valve and lters (refer to section 3.1.2 - fuel pipes). A nonreturn valve should also be tted in the return pipe if the top of the

tank is above the burner oil pump. The maximum suction height (from the tank outlet to the level of

the burner oil pump), must not exceed 3.5 metres. The pump vacuum should not exceed 0.4 bar. Beyond this limit,

gas is released from the oil. For guidance on the installation of top outlet fuel tanks and suction

oil supply pipe sizing, refer to OFTEC Technical Book 3: Storage and Supply, available for purchase from OFTEC.

Ø 6 mm Ø 8 mm Ø 10 mm

Maximum pipe run (m)

Section 3: Oil Storage and Supply System Page 9

Page 10

123

8 5

4m Max

300mm

Min

123

8 5

4m Max

300mm

Min

123

3.5m Max

8 5

123

4m Max

8 5

Figure 3-1: Single pipe (gravity) system

8 5

Figure 3-2: Two pipe system

300mm

Min

123

3.5m Max

12 4

8 5

Figure 3-3: De-aeration device system

Key to oil supply diagrams

1 Oil tank 5 Heating ow and return 9 Burner

2 Isolating valve 6 Oil lter (15μm max. ltration size) 10 Non-return valve

3 Oil strainer 7 Fire valve sensor 11 De-aerator*

4 Fire valve to BS 5410 8 Oil pump 12 Appliance isolation valves

* Position of de-aeration device must be level with or above the oil pump

123

150mm

Section 3: Oil Storage and Supply SystemPage 10

3.5m Max

Page 11

3.1.5 SINGLE PIPE (SUCTION) SYSTEM WITH DEAERATOR - (REFER TO FIGURE 3-3)

If the storage tank outlet is below the level of the burner oil pump, an alternative to the two pipe (sub gravity) system is the single pipe (suction) system using a deaerator, e.g. a ‘Tiger Loop’ device.

The deaerator creates a loop with the burner oil pump, with the oil being circulated through the pump out to the deaerator and back to the pump. Any air in the single pipe lift from the tank is removed from the oil, collected in the deaerator and then discharged to outside.

! WARNING !

To prevent any fuel vapour being discharged within

the building, the deaerator must be tted outside, in accordance with BS 5410-1, unless it is specically

designed to be installed inside.

The de-aerator must be mounted vertically at the same level as (or above) the burner oil pump. Refer to Figure 3-3.

3.2 BURNER OIL CONNECTION

The burner fuel pump is supplied factory set for use with a two pipe oil supply system.

For ease of access to the burner oil pump connections, the burner should be removed from the boiler as follows:

1. Unscrew and remove the single burner fixing nut from the stud on the burner flange (at the top of the burner) using a 13 mm spanner. Retain the fixing nut for re-fitting the burner.

2. Rotate the burner clockwise and carefully withdraw the burner from the boiler. Refer to Figure 3-5.

RETURN

FROM PUMP

SUPPLY

TO PUMP

Figure 3-4: Tiger loop de-aeration device

An external deaerator must not be tted within 500 mm of a ue

terminal. Always follow the manufacturers installation instructions supplied

with the deaerator.

Tiger Loop

1/4" BSP female

connections

SUPPLY

FROM TANK

Figure 3-5: Burner removal

SINGLE PIPE (GRAVITY) SYSTEM

For use on a single pipe system, it is necessary to t the

‘horseshoe’ washer into the tapping in the pump. Refer to Figure 3-6.

Figure 3-6: Fitting/location of ‘hoseshoe’ washer

Section 3: Oil Storage and Supply System Page 11

Page 12

This page is intentionally left blank.

Section 3: Oil Storage and Supply SystemPage 12

Page 13

4 INSTALLATION

4.1 INTRODUCTION

The boiler is supplied already fully assembled in a carton which is carefully packed with packing materials. As the boiler is wall mounted all of the content of the boiler casing must be removed with the packaging before installation can begin, to give access to

the rear xing panel.

The installation procedure therefore begins with unpacking and dismantling of the packed boiler.

4.2 BOILER LOCATION

The boiler should be xed to a wall that is rm, at and vertical. It

does not require any special base provisions as the temperature of the boiler casing is less than 50°C.

Sufcient clearance must be allowed at the front of and below the boiler to remove the burner and bafes for servicing.

4.3 REGULATIONS

! NOTE !

Failure to install and commission appliances correctly may invalidate the boiler guarantee.

Installation of a Grant Vortex boiler must be in accordance with the following recommendations:

• Building Regulations for England and Wales, or the Building

Standards for Scotland, as appropriate.

• Any relevant local Byelaws which you must check with the

local authority for the area concerned.

• The Water Supply (Water Fittings) Regulations 1999 or

the Water Supply (Fittings) (Scotland) Byelaws 2014, as appropriate.

• Applicable Control of Pollution Regulations.

• The following OFTEC requirements:

• OFS T100 Polythene oil storage tanks for distillate fuels.

• OFS T200 Fuel oil storage tanks and tank bunds for use

with distillate fuels, lubrication oils and waste oils.

Further information may be obtained from the OFTEC Technical Book 3 (Installation requirements for oil storage tanks) and

OFTEC Technical Book 4 (Installation requirements for oil red

boilers). The installation should also be in accordance with the latest

edition of the following British Standard Codes of Practice (and any relevant amendments):

• BS 5410-1 (Code of practice for oil ring. Installations up

to 45 kW output capacity for space heating and hot water supply purposes)

• BS EN 12828 (Heating systems in buildings. Design for

water-based heating systems)

• BS EN 12831-1 (Energy performance of buildings. Method

for calculation of the design heat load)

• BS EN 14336 (Heating systems in buildings. Installation and

commissioning of water-based heating systems)

• BS 7593 (Code of Practice for treatment of water in domestic

hot water central heating systems)

• BS 7671 (Requirements for Electrical installations, IET Wiring

Regulations)

• BS 7291 (Thermoplastics pipe and tting systems for hot and

cold water for domestic purposes and heating installations in buildings. General requirements)

• BS 7074-1 (Application, selection and installation of

expansion vessels and ancillary equipment for sealed water systems. Code of practice for domestic heating and hot water supply)

• BS 2869 (Fuel oils for agricultural, domestic and industrial engines and boilers. Specication)

4.4 HEATING SYSTEM DESIGN CONSIDERATIONS

! WARNING !

Before starting any work on the boiler or fuel supply, please read the Health and Safety information given in Section 15.

To achieve the maximum efciency possible from the Grant Vortex

boiler, the heating system should be designed to the following parameters:

RADIATORS:

• Flow temperature 70°C

• Return temperature 50°C

• Differential 20°C

Size radiators with a mean water temperature of 60°C. Design system controls with programmable room thermostats

or use weather compensating controls to maintain return temperatures below 55°C.

! NOTE !

The boiler should not be allowed to operate with return temperatures of less than 40°C when the system is up to temperature.

The use of a pipe thermostat is recommended to control the return temperature when using weather compensating controls.

UNDERFLOOR:

• Flow temperature 50°C

• Return temperature 40°C

• Differential 10°C

In underoor systems, it is essential that the return temperature

must be maintained at or above 40°C to prevent internal corrosion of the boiler water jacket.

Refer to Section 2.5 for the size and type of the connections and Section 5 for the position of the connections.

OPEN VENTED SYSTEMS:

! NOTE !

The presence of ‘pumping over’ in an open vented heating system connected to the Grant Vortex boiler will invalidate the product guarantee.

Open vented systems must be correctly designed and installed. The open safety vent pipe must be positioned to prevent ‘pumping over’ (i.e. the discharge of water from the open safety vent pipe into the feed and expansion cistern under the pressure created by the circulator).For detailed information on the correct design of open vented heating systems, and the correct location of the open safety vent pipe, refer to the CIBSE Domestic Heating Design Guide and OFTEC Technical Book 4 (Installation).

Section 4: Installation Page 13

Page 14

4.5 PIPEWORK MATERIALS

Grant Vortex boilers are compatible with both copper and plastic pipe. Where plastic pipe is used it must be of the oxygen barrier type and be the correct class (to BS 7291-1) for the application concerned.

On either sealed or open-vented systems; where plastic pipe is

used a minimum of ONE metre of copper pipe (or as per pipe manufacturers instructions) MUST be connected between both

the boiler ow and return connections and the plastic pipe.

! NOTE !

Do not connect plastic pipe directly to the boiler.

Grant UK does not accept any responsibility for any damage,

however caused, to plastic piping or ttings.

SEALED SYSTEMS

If plastic pipe is to be used, the installer must check with the plastic pipe manufacturer that the pipe to be used is suitable for the temperature and pressures concerned.

Plastic pipe must be Class S to BS 7291-1.

4.7 PREPARATION FOR INSTALLATION

The following procedure must be performed before you can begin dismantling the boiler for installation:

1. With the boiler on the pallet, open the carton and remove all packing materials and the carton from the boiler.

2. Lift open lower front panel, slide panel to left or right and detach from the boiler.

! WARNING !

When plastic pipe is used, the system MUST incorporate a low level pressure switch to shut off power to the boiler if the system pressure drops below 0.2 bar. A suitable low pressure switch kit is available to purchase from Grant UK (product code: MPCBS62).

UNDERFLOOR PIPEWORK

Plastic pipe may be used on underoor oor systems where the plastic pipe is tted after the thermostatic mixing valve. Copper tube must be used for at least the rst metre of ow and return primary pipework between the boiler and the underoor mixing/

blending valves.

4.6 CONNECTIONS

4.6.1 FLOW AND RETURN CONNECTIONS

Refer to Section 5.

4.6.2 CONDENSATE CONNECTION

Grant Vortex Pro boilers are supplied with a factory-tted

condensate trap to provide the required 75 mm water seal in the condensate discharge pipe from the boiler.

Refer to Section 6 for details of the condensate disposal pipework.

4.6.3 DRAIN COCK

A drain cock is tted at the bottom on the front of the boiler to

allow the heating system to be drained.

Figure 4-1: Boiler front panel open

3. Remove upper front panel. Pull bottom edge of panel sharply upwards to disengage retaining clips and lift off from boiler

4. Remove internal packaging from within boiler casing.

5. Remove lling loop and exible oil hose packs from within boiler.

4.8 DISMANTLING THE BOILER

Dismantle the boiler as follows, keeping all components, screws and washers for re-assembly:

1. Slacken off hose clip on burner air inlet and remove snorkel tube from boiler.

2. Unscrew earth wire from underside of top casing panel.

3. Slacken the three screws at rear of top casing panel. Remove screws securing top panel to side panels. Pull top front corner of side casing panel on both sides by 10

mm outwards to disengage tabs on top casing panel. Pull top panel forwards to remove from boiler.

4. Disconnect plug from burner control box.

5. System model only – Disconnect plug from pump.

6. Unscrew inlet connection to condensate trap and remove trap from boiler.

7. Remove retaining clip and thermostat phials from their pocket (in right side of heat exchanger – below return connection).

Figure 4-2: Removing thermostat phials

8. System model only - Unscrew and disconnect pressure gauge pipe from PRV body.

9. Slacken control panel retaining screws and remove control panel from boiler.

Section 4: InstallationPage 14

Page 15

10. Remove the two screws securing right hand side panel to bottom panel. Remove right hand side panel from boiler by lifting upwards to disengage tabs.

11. Repeat procedure to remove left hand side panel from boiler.

12. Slacken the three screws at rear of bottom casing panel and remove bottom panel from boiler.

13. System model only - Unscrew upper pump union and remove

pump, complete with ow pipe, from boiler.

Figure 4-4: Removing clean-out door

18. Remove bafes from boiler shell.

Figure 4-3: Removing ow and return pipe

14. Non-system model – Unscrew compression connection on

boiler shell and remove ow pipe from boiler.

15. Unscrew top right compression connection and remove return pipe from boiler.

16. Using a 13mm socket, slacken burner retaining nut (on top of burner). Rotate burner clockwise (towards rear of boiler), pull burner to the right until burner head is clear of mounting

ange and remove burner from boiler.

17. Using 13mm spanner, unscrew the two clean-out door retaining nuts and remove door from front of boiler shell.

Figure 4-5: Removing bafes from boiler shell

19. Undo retaining screw and nut and remove transit bracket from top of boiler shell.

20. Push boiler shell upwards to disengage it from mounting bracket on back panel of boiler taking care not to damage the insulation on the side of shell.

21. Lift boiler shell away from back panel and stand it upright on the four feet.

22. Unscrew and remove the two transit screws securing mounting bracket and back panel to pallet.

Section 4: Installation Page 15

Page 16

4.9 INSTALLING THE BOILER

ﬁxings supplied by Grant UK.

You are now ready to install the boiler. The procedure is as follows:

1. If a back outlet ue system is to be used, remove the large

circular ue knock-out from back panel. If the rear outlet PRV

discharge is to be used, remove the knock-out from the back

panel (as shown in the gure below.

Figure 4-6: Installing the back panel

2. Locate and hold the back panel in the required position on

the wall. Check it is level using a spirit level on the top ange.

Mark position of the holes for the two keyhole slots. Remove the back panel from the wall.

3. Drill and t wall xing plugs (supplied) in the two holes.

Fit the two screws (supplied) and mount the back panel on the wall using the two keyhole slots.

Check again that the back panel is level before proceeding.

4. Mark the position of the four mounting bracket xings on to

the wall from the back panel. Also mark the positions of the

ow and return pipes, the cold mains (for lling loop), the

electrical power supply, and the condensate discharge pipe.

5. If using a back outlet ue and/or rear PRV outlet is to be

used, also mark these holes on to the wall.

Figure 4-7: Fixing the back panel

9. Unscrew and remove ue xing screw from ue outlet.

10. Lift the boiler shell and hang it on the mounting bracket – ensuring that the mounting plates on either side of the shell are fully located in the vertical slot of both mounting hooks.

11. Re-t the return pipe to top right hand connection on boiler shell. Pass return pipe from system through hole in back panel (either at top or bottom of panel, as required) and connect to boiler return pipe.

! NOTE !

If side outlet ue is to be used (to either left or right) then mark position as it may be necessary to cut ue hole

BEFORE installing boiler on to wall.

6. Remove the back panel from the wall. Drill the holes for the

mounting bracket xings and t the wall plugs provided. Drill

all other necessary holes. If required, core drill the wall for a

back outlet ue and drill a hole for the PRV discharge pipe.

Re-mount the back panel on the two keyholes slots.

7. Locate the mounting bracket on to the back panel, aligning the four holes in the bracket with those in the back panel. Ensure that the mounting ‘hooks’ are pointing upwards and

secure using the xings supplied with the boiler.

8. Check the mounting bracket is level.

Figure 4-8: Re-tting ow and return pipe

12. System model only - Re-t pump complete with ow pipe to

upper pump union on boiler shell. Ensure that rubber pump

union washer is tted. Pass ow pipe from system through

hole in back panel (either at top or bottom of panel, as

required) and connect to boiler ow pipe.

13. Non-system model – Re-t ow pipe to compression connection on boiler shell. Pass ow pipe from system

through hole in back panel (either at top or bottom of panel,

as required) and connect to boiler ow pipe.

! NOTE !

It is recommended that the system ow and return pipes

are connected to the boiler at this point in the installation. Two 22mm isolating valves are supplied for use with sealed system models only. These must not be used on an open vented system. These boiler isolating valves should be located adjacent to the boiler in a convenient position.

14. Re-t burner. First remove burner securing nut, locate burner head into hole in burner ange/boiler shell and locate mounting screw through hole on top of burner. Re-t nut and tighten to secure burner in place. Connect exible oil lines

Section 4: InstallationPage 16

Page 17

from oil supply pipework to burner. It is recommended that the copper oil lines are installed at this stage while the side panels are not in place.

15. Re-t bafes into boiler shell – ensuring they are in the

correct order (check marking on each bafe) as shown

below.

Figure 4-9: Re-tting bafes into boiler shell

16. Locate clean-out door onto the two studs, re-t nuts and

tighten to secure door in place.

17. If side outlet ue system is to be used, remove ue ‘knock-

out’ from either the left or right side casing panel, as required.

18. Re-t left hand casing panel locating tabs on rear edge

of panel into slots in back panel. Firmly push side panel downwards to fully engage tabs.

19. Repeat process to re-t right hand casing panel.

20. Pass ue through hole in side panel and secure.

21. Re-t bottom casing panel and secure in place with screws

(with washers).

22. If top outlet ue system is to be used, remove the ue ‘knock-

out’ in both the top casing panel and the top ange of the

back panel.

Fit the boiler connector (supplied in the ue kit) to the top of the boiler shell, ensuring it is rmly connected and making a

seal on the neoprene gasket.

Refer to ue installation instructions for further details.

23. Re-t top casing panel and secure in place with screws (with washers). Ensure that the ends of the front ange t into the

slots in the top front of side panels.

24. System model only - Re-t expansion vessel onto bracket inside right hand side panel and reconnect expansion vessel hose to connection on front right hand side of boiler shell.

Ensure rubber sealing washer is tted.

25. Re-t control panel – locating xing screws into slots in front ange of bottom panel. Tighten screws to secure.

26. Re-locate thermostat bulbs in pocket at rear right hand side of boiler shell.

27. System model only - Re-connect pressure gauge to PRV and tighten.

28. Re-connect burner plug.

29. System model only - Re-connect pump plug.

30. Re-t condensate trap. Connect condensate discharge pipe

to outlet of trap.

31. Re-t snorkel tube to air inlet connection on burner. Tighten

hose clip to secure.

32. If balanced ue system is tted, connect other end of snorkel

tube to air inlet spigot of ue system.

33. If a conventional ue system is used, locate other end of

snorkel in top of boiler, ensuring that inlet to tube is not restricted.

34. Fit ue system to boiler – refer to ue system installation

instructions.

35. Re-t upper front casing panel – hook top edge over front

edge of top panel, locate pins into spring retaining clip on

each side panel and push rmly home to secure.

36. Re-t lower front panel – with the panel at 45° to vertical,

locate the tabs into the horizontal slots in front of bottom panel. Slide to either left or right and lift into closed position against magnetic catches.

4.10 BEFORE YOU COMMISSION

To avoid the danger of dirt and foreign matter entering the boiler

the complete heating system should be thoroughly ushed

out – both before the boiler is connected and then again after the system has been heated and is still hot. This is especially important where the boiler is to be installed on an older system.

For optimum performance after installation, the boiler and the

associated heating system must be ushed in accordance with

the guidelines given in BS 7593 (Treatment of water in domestic hot water central heating systems). This must involve the use of a proprietary cleaner, such as Sentinel X300 (new systems), Sentinel X400 (existing systems), or Fernox Restorer.

After cleaning, it is vitally important that all traces of the cleaner

are thoroughly ushed from the system.

For long term protection against corrosion and scale, after

cleaning/ushing a suitable inhibitor should be added to the

system water, such as Sentinel X100 or Fernox MB-1, in accordance with the manufacturers’ instructions.

Failure to follow the above will invalidate the guarantee. If the boiler is installed in a garage or out house, in order to

provide further protection should there be a power failure in cold weather, a combined anti-freeze and corrosion inhibitor can be used such as Sentinel X500 or Fernox Alphi-11. Follow the manufacturers’ instructions supplied to achieve the level of antifreeze protection required.

For details of the Sentinel Products visit www.sentinel-solutions. net and for Fernox products visit www.fernox.com.

Grant UK strongly recommends that a Grant Mag One in-line

magnetic lter/s (or equivalent*) is tted in the heating system

pipework. This should be installed and regularly serviced in

accordance with the lter manufacturer’s instructions. * As measured by gauss. The MagOne magnetic lter has a gauss

value of 12000.

4.11 COMPLETION

Following installation of the boiler, instruct the user in the operation of the boiler, the boiler controls, the heating controls and the safety devices.

Please ensure that the OFTEC CD/10 installation completion report (provided with the boiler) is completed in full, leaving the top copy with the user and retain the carbon copy for your own records.

Ensure that the User Handbook (supplied with the boiler) is handed over to the user.

Section 4: Installation Page 17

Page 18

5 PIPE CONNECTIONS

5.1 WATER CONNECTIONS

FLOW AND RETURN CONNECTIONS - ALL MODELS

On all models a 22mm push-t connection is provided for both the heating ow and return connections.

Holes are provided in the top and bottom casing panels to route the pipework as required.

! CAUTION !

All pipes to be tted into the push-t connectors provided

should be cut using a pipe slicer or pipe cutter - to leave the pipe ends with a slight radius and free from any burrs

or sharp edges. Pipes to be used with these ttings should

not be cut square using a hacksaw.

5.2 WATER CONNECTIONS -

SYSTEM MODELS

A 15 mm discharge pipe must be connected to the safety valve outlet connection. The pipework between the safety valve and the boiler must be unrestricted, that is, no valves. The discharge pipe should be run to the outside of the building and terminate so that it cannot cause injury to persons or property.

A 15 mm double check valve ballox type valve is provided on the exible lling loop hose for connection of the cold mains supply to

the heating system. The cold mains supply should terminate inside the boiler casing.

A drain cock is tted at the bottom on the front of the boiler to

allow the heating system to be drained.

The expansion vessel is connected via a exible hose to allow it

to be moved to gain access to the burner and condensate trap for servicing.

When replacing the vessel, care should be taken to ensure that

the exible connecting hose is not twisted.

Figure 5-1: Non system boiler ow and return connections

Figure 5-2: System boiler ow and return connections

Section 5: Pipe ConnectionsPage 18

Page 19

32 mm waste pipe external to the building

and 50 mm from the bottom

away from the property.

6 CONDENSATE DISPOSAL

6.1 GENERAL REQUIREMENTS

When in condensing mode the Grant Vortex boilers produce

condensate from the water vapour in the ue gases.

This condensate is moderately acidic with a pH value of around

3.27 (similar to orange juice).

Provision must be made for the safe and effective disposal of this condensate.

Condensate can be disposed of using one of the following methods of connection:

Internal connection (preferred option)

• into an internal domestic waste system (from kitchen sink, washing machine, etc.)

• directly into the soil stack

External connection

• into an external soil stack

• into an external drain or gulley

• into a rainwater hopper (that is part of a combined system

where sewer carries both rainwater and foul water)

• purpose made soakaway

All condensate disposal pipes must be tted with a trap - whether they are connected internally or externally to a domestic waste system/soil stack or run externally to a gully, hopper or soakaway.

6.2 CONNECTIONS

Connections into a rainwater hopper, external drain or gulley should be terminated inside the hopper/drain/gulley below the grid level but above the water level.

! CAUTION !

Condensate disposal pipes must not be connected directly into rainwater downpipes or to waste/soil systems connected to septic tanks.

Condensate should not be discharged into ‘grey water’ systems that re-use water used in the home (not including water from toilets).

It should be noted that connection of a condensate pipe to the drain may be subject to local Building Control requirements.

6.3 PIPEWORK

Condensate disposal pipework must be plastic (plastic waste or

overow pipe is suitable).

! NOTE !

Copper or steel pipe is NOT suitable and MUST NOT be used.

Condensate disposal pipes should have a minimum ‘nominal’

diameter of 22 mm (¾ʺ) - e.g. use 21.5 mm OD polypropylene overow pipe.

Condensate disposal pipes must be tted with a fall (away from

the boiler) of at least 2.5° (~45 mm fall per metre run).

! NOTE !

Where it is not possible for the pipe to fall towards the point of discharge - either internally into a waste system or externally to a gulley (e.g. for boilers installed in a basement), it will be necessary to use a condensate pump.

Condensate disposal pipes should be kept as short as possible and the number of bends kept to a minimum.

Pipes should be adequately xed to prevent sagging, i.e. at no

more than 0.5 metre intervals.

6.4 EXTERNAL PIPEWORK

Ideally, external pipework, or pipework in unheated areas, should be avoided. If unavoidable, external pipework should be kept as short as possible (less than 3 metres) and 32 mm waste pipe used to minimise the risk of ice blocking the pipe in freezing conditions.

The number of bends, ttings and joints on external pipes should

be kept to a minimum to reduce the risk of trapping condensate.

! NOTE !

For boilers installed in an unheated area such as a loft, basement, outhouse or garage, all condensate pipework should be as ‘external’.

The pipework should be insulated using suitable waterproof and weather resistant insulation.

Cement seal

100 mm plastic tube

Figure 6-1: Purpose made condensate soakaway

Section 6: Condensate Disposal Page 19

Sealed end Backfill with 10 mm

limestone chippings

Minimum 2.5 fall

Ground level

25 mm

300 mm

400 mm

min.

Two rows of 3 x 12 mm holes at 25 mm centres

of the tube. Holes facing

Page 20

6.5 CONDENSATE SOAKAWAY

To keep external pipework to a minimum, locate the soakaway as close as possible to the boiler but ensure it is at least 500 mm from building foundations and away from other services, e.g. gas, electricity, etc.

The condensate pipe may be run above or below ground level and can enter either the top or side of the soakaway tube. Refer to Figure 6-1.

Ensure that the drainage holes in the soakaway tube face away from the building.

Backll both the soakaway tube, and the hole around it, with 10

mm limestone chippings. Only use a soakaway where the soil is porous and drains easily.

Do not use in clay soils or where the soil is poorly drained.

! CAUTION !

Any damage due to condensate backing up into the boiler due to a high water table, in the case of a soakaway, or

ooded drains when the condensate disposal is via a

gulley or soil stack, is not covered by the Grant product guarantee.

6.6 CONDENSATE TRAP

Grant Vortex boilers are supplied with a condensate trap to provide the required 75 mm water seal in the condensate discharge pipe from the boiler.

The condensate trap is factory tted inside the boiler casing -

mounted on the outlet of the condensing heat exchanger - in an accessible position to allow for routine maintenance.

! NOTE !

With the trap tted inside the boiler casing, the sealing cap must be tted. If the trap is re-located outside the boiler then the

following applies:

• If connecting the condensate discharge - either internally or

externally - into a waste system or soil stack - the sealing cap

must be tted in the trap outlet.

• On external discharge systems to a hopper, gully or

soakaway, the sealing cap should be removed from the trap outlet.

• If there is any discharge of condensate from the overow

outlet, this could indicate a blockage (possibly due to freezing). Turn off the boiler and investigate the cause. If necessary contact your service engineer for assistance.

! WARNING !

Care should be taken when siting the trap such that the

overow outlet is readily visible and that any condensate overowing from the outlet cannot cause either a hazard to

persons or damage to surrounding property or equipment.

6.7 CONDENSATE DISPOSAL PIPEWORK

The condense trap outlet is at an angle of 48° below the horizontal. This is to automatically gives a 3° fall on any ‘horizontal’ runs of condense disposal pipe. Refer to Figure 6-1 and see trap outlet/pipe.

The outlet of the trap will accept 21.5 mm to 23 mm OD

Polypropylene overow pipe for the condensate discharge pipe.

This discharge pipe can exit through the left side of the boiler through one of two pre-cut ‘knock-outs’ in the lower part of the left casing panel. Push out the ‘knock-out’ from the required hole taking care not to distort the side panel.

If required, this condensate trap may be re-located outside the boiler casing. Refer to the procedure given in Section

6.9. This procedure must be carried out before the boiler is installed.

This trap incorporates a oat (which will create a seal when the trap is empty) and an overow warning outlet (tted with a plastic

sealing cap), see Figure 6-2.

! NOTE !

When connecting plastic discharge pipe, ensure that the

pipe is fully pushed into the outlet end on the exible hose

to prevent the possibility of leakage.

6.8 INSPECTION AND CLEANING OF TRAP

The trap must be checked at regular intervals (e.g. on every annual service) and cleaned as necessary to ensure that it is clear and able to operate.

The bottom bowl can be unscrewed from the trap body for inspection and cleaning.

To inspect and clean the trap:

1. Disconnect exible condensate hose from inlet connector.

2. Unscrew the inlet connection nut.

3. Remove the inlet connector and nut from trap.

4. Disconnect the condensate disposal pipe from the trap outlet.

5. Remove trap from bracket.

6. Remove oat from trap – clean if necessary.

7. Inspect inside of trap and clean as necessary.

8. Re-assemble trap, re-t to boiler and re-connect exible

hose. Ensure that hose is fully pushed onto the trap inlet connector.

Figure 6-2: Condensate trap

A ‘push-t’ elbow connects the outlet of the condensing heat

exchanger to the trap inlet. Ensure the elbow connector on the hose is fully pushed onto the ‘top hat’ inlet connector of the trap.

! CAUTION !

Failure to regularly check and clean the condensate trap may result in damage to the boiler and will not be covered by the product guarantee.

Section 6: Condensate DisposalPage 20

Page 21

7 SEALED SYSTEMS

7.1 SEALED SYSTEM

REQUIREMENTS

All Grant Vortex Eco Wall Hung models are suitable for use with sealed systems complying with the requirements of BS EN 12828, BS EN 12831 and BS EN 14336.

The system must be provided with the following items:

• Diaphragm expansion vessel complying with BS EN 13831

• Pressure gauge

• Pressure relief (safety) valve

• Approved method for lling the system

7.1.1 EXPANSION VESSEL

The expansion vessel should be tted in the return pipework

as shown in Figure 7-2. To reduce the operating temperature of the expansion vessel, position it below the pipe to which it is connected.

The expansion vessel may be positioned away from the system, providing the connecting pipe is not less than 13 mm diameter. If

the expansion vessel is connected via a exible hose, care must

be taken to ensure that the hose is not twisted or kinked.

! NOTE !

Ensure that the expansion vessel used is of sufcient size

for the system volume.

Refer to BS 7074-1 or The Domestic Heating Design Guide for sizing the required vessel.

7.1.2 PRESSURE GAUGE

The pressure gauge must have an operating range of 0 to 4 bar.

It must be located in an accessible place next to the lling loop for

the system.

7.1.3 SAFETY VALVE

The safety valve should be tted in the ow pipework near to the

boiler. The pipework between the safety valve and boiler must be

unrestricted, i.e. no valves. The safety valve should be connected to a discharge pipe which will allow the discharge to be seen, but cannot cause injury to persons or damage to property.

7.1.4 FILLING LOOP

Provision should be made to replace water lost from the

Figure 7-1: Sealed system

If thermostatic radiator valves are ﬁtted, the system must incorporate an adequate by-pass.

Figure 7-2: Sealed system boilers

Section 7: Sealed Systems Page 21

Page 22

system. This can be done manually (where allowed by the local

water undertaking) using an approved lling loop arrangement

incorporating a double check valve assembly.

The lling loop must be isolated and disconnected after lling the

system.

7.1.5 HEATING SYSTEM

The maximum ‘setpoint’ temperature for the central heating water is 75°C. Refer to Section 1.1.

An automatic air vent should be tted in the ow and return pipes

of the highest point of the system.

If thermostatic radiator valves are tted to all radiators, a system by-pass must be tted. The by-pass must be an automatic type.

All ttings used in the system must be able to withstand pressures

up to 3 bar. Radiator valves must comply with the requirements of BS 2767.

One or more drain taps (to BS 2879) must be used to allow the system to be completely drained.

7.2 FILLING THE SEALED SYSTEM

Filling of the system must be carried out in a manner approved by the local Water Undertaking.

! WARNING !

Only ever ll or add water to the system when it is cold and the boiler is off. Do not overll.

The procedure for lling the sealed system is as follows:

1. Check the air charge pressure in the expansion vessel

BEFORE lling the system.

The expansion vessel charge pressure should always be slightly greater than the maximum static head of the system,

in bar, at the level of the vessel (1 bar = 10.2 metres of

water). Refer to Figure 7-2. The charge pressure must not be less than the actual static

head at the point of connection.

operating the safety valve until the system design pressure is obtained.

10. Close the ll point and double check valves either side of the

lling loop and disconnect the loop.

11. Check the system for water soundness, rectifying where necessary.

7.3 VENTING THE PUMP

For those heating circulating pumps tted with a vent plug, it is

important that the pump is properly vented to avoid an air lock and also prevent it running dry and damaging the bearings.

Unscrew and remove the plug from the centre of the pump motor. Using a suitable screwdriver, rotate the pump spindle about one turn. Replace the plug in the motor. Do not over tighten.

! NOTE !

Some heating circulating pumps are not tted with a

vent plug so it is not possible to vent these pumps in the manner described above. Refer to pump manufacturers own instructions for further details.

7.4 PRESSURE RELIEF (SAFETY)

VALVE OPERATION

Check the operation of the pressure relief (safety) valve as follows:

1. Turning the head of the valve anticlockwise until it clicks. The click is the safety valve head lifting off its seat allowing water to escape from the system.

2. Check that the water is escaping from the system.

3. Top-up the system pressure, as necessary.

! NOTE !

The air charge pressure may be checked using a tyre pressure gauge on the expansion vessel Schraeder valve.

The vessel may be re-pressurised, when necessary, using a suitable pump. When checking the air pressure, the water in the heating system must be cold and the system pressure reduced to zero.

Check that the small cap (or screw) on all automatic air vents is open at least one turn. The cap (or screw) remains in this position from now on.

2. Ensure that the exible lling loop is connected and that the

double check shut off valve connecting it to the water supply is closed. A valve is open when the operating lever is in line with the valve, and closed when it is at right angles to it.

3. Open the ll point valve.

4. Gradually open the double check valve from the water supply

until water is heard to ow.

5. When the needle of the pressure gauge is between 0.5 and

1.0 bar, close the valve.

6. Vent each radiator in turn, starting with the lowest one in the system, to remove air.

7. Continue to ll the system until the pressure gauge indicates

between 0.5 and 1.0 bar. Close the ll point valve. The system ll pressure (cold) should be 0.2 - 0.3 bar greater than the vessel charge pressure – giving typical system ll

pressures of approx 0.5 bar for a bungalow and 1.0 bar for a two storey house.

Refer to the Domestic Heating Design Guide for further information if required.

8. Repeat steps 4 and 5 as required until system is full of water at the correct pressure and vented.

9. Water may be released from the system by manually

Section 7: Sealed SystemsPage 22

Page 23

8 ELECTRICAL

8.1 GENERAL

Grant Vortex Eco models requires a ~230V 1ph 50Hz supply. It must be protected by a 5 Amp fuse.

Refer to Figures 8-1 to 8-4 for typical control system wiring diagrams for all models.

Refer to Figures 8-5 and 8-6 for wiring diagrams for all models.

! WARNING !

The Vortex boiler contains electrical switching equipment and must be earthed.

The supply must be fused at 5 Amp and there must only be one common isolator for the boiler and control system, providing complete electrical isolation.

A fused double pole switch or a fused three pin plug and shuttered outlet socket should be used for the connection.

The power supply cable should be at least 0.75 mm

specied in BS 6500, Table 16.

All the wiring and supplementary earth bonding external to the boiler must be in accordance with the current IET Wiring Regulations.

Any room thermostat or frost thermostat used must be suitable for use on mains voltage.

In the event of an electrical fault after installation of the boiler, the following electrical system checks must be carried out:

• Short circuit

• Polarity

• Earth continuity

• Resistance to earth

PVC as

8.3 FROST PROTECTION

For additional protection of either the entire heating system, or the boiler and localised pipework, it is recommended that a frost thermostat be installed.

Refer to Figures 8-1 to 8-4 (as appropriate) for connection details. To protect the heating system, the frost thermostat should be sited

within the house in such a place that it can detect any rise and fall in the ambient air temperature, i.e. in a room with a radiator.

Where the frost thermostat is installed outside the house (to protect a boiler installed in an external boiler room or garage) or in an attic, it is recommended that it be used in conjunction with a pipe thermostat to avoid unnecessary and wasteful overheating of the property.

The pipe thermostat should be located on the boiler return pipe, and set to operate at 25 C.

Refer to Figures 8-1 to 8-4 (as appropriate) for connection details.

8.2 CONNECTING THE POWER

SUPPLY

It is recommend that the boiler should be connected to a switched mains power supply from a programmer or control system.

A three core cable is required to connect the boiler terminal block to the live supply. Refer to Figures 8-1 to 8-4 for typical control system wiring diagrams.

! NOTE !

Ensure that the route and length of the supply cable is such that the boiler control panel can be hooked to the top panel of the casing during the service operation.

The procedure is:

1. Remove the lower and upper front panels, if they have not already been removed.

2. Remove the top of the control panel or the wiring cover (on Kitchen models)and open the cable clamp.

3. Route the supply cable through the hole in the rear panel (using the grommet supplied) up to the control panel, pass it through the cable clamp and connect to the boiler terminal block as follows:

• Brown to live (terminal 1)

• Blue to mains neutral (terminal 2)

• Green/Yellow to mains earth (terminal 3)

Section 8: Electrical Page 23

Page 24

8.4 CONTROL SYSTEM WIRING DIAGRAMS

Grey

Blue

Grey

Motor Motor

Orange

Blue

DHWHTG

Frost

Thermostat

Pipe

Thermostat

(if ﬁtted)

240 V 50 Hz

N E

1 3 4 N L

Green/Yellow

1 2

Brown

3 4 5 6 7 8 9 10

Zone Valve Zone Valve

Green/Yellow

Room Stat

2 1 1 C3

Cylinder

Stat

L N E L LE N

1 2 3 4 75 6

Boiler Terminal Block

Brown

wiring centre

Pump

N L

Orange

L E N

Supply to

burner

Figure 8-1: Internal wall hung - 2 X 2-port valve control system

240 V 50 Hz

Blue

Green/Yellow

1 2

Frost

Thermostat

Pipe

Thermostat

(if ﬁtted)

N E

Stat

Grey

Orange

White

Cylinder

Room Stat

2 1

3 4 5 6 7 8 9 10

C 2

Mid Position

Zone Valve

wiring centre

Pump

1 3 4 N L

Figure 8-2: Internal wall hung - 3-port valve control system

L N E L E N

2 3 4 5 6L7

Boiler Terminal Block

Supply to

Section 8: ElectricalPage 24

burner

Page 25

Figure 8-3: Internal system wall hung - 2 X 2-port valve control system

Frost

Thermostat

Pipe

Thermostat

(if ﬁtted)

Grey

Blue

T6160

Room Stat

Brown

Green/Yellow

Grey

Orange

Zone Valve Zone Valve

Motor Motor

DHWHTG

Orange

L641

Cylinder

Stat

wiring centre

Supply to

burner

Boiler Terminal Block

Supply to

Pump

240 V 50 Hz

1 3 4 N L

N E

L N E L E N L LN E

1 2 3 4 7 8 9 105 6

1 2

2 1 1 C3

3 4 5 6 7 8 9 10

L N E

240 V 50 Hz

N E

Frost

Thermostat

Figure 8-4: Internal system wall hung - 3-port valve control system

Pipe

Thermostat

(if ﬁtted)

1 3 4 N L

Section 8: Electrical Page 25

Blue

Green/Yellow

Room Stat

2 1

1 2

3 4 5 6 7 8 9 10

White

L N E L N E

Grey

Orange

Cylinder

Stat

C 2

2 3 4 5 6

Boiler Terminal Block

Mid Position

Zone Valve

wiring centre

E N L L

7 8 9 10

L N E

Supply to

Pump

E N L L

Supply to

burner

Page 26

8.5 BOILER CONTROL PANEL WIRING DIAGRAMS

Mains Supply: Use 2 pole isolator with power “ON” indicator

Brown

Blue

Red

Green/Yellow

Blue

Brown

N L2 E N L1

2 4 5 6 7

Yellow

Green/

Blue

G/Y

4 core white

insulation

BrBlBlk

L2 L1

Blk

G/Y

Fit covers as above on plug and socket

Black

Red

Blue

L2 L1

Bl G/Y

Blk

Green/ Yellow

4 core white

insulation

Brown Brown

Boiler On/

Off

c/w neon

Figure 8-5: Internal wall hung - wiring diagram

Controlled

Thermostat

Limit

Thermostat

Lock out

Neon Red

Section 8: ElectricalPage 26

Page 27

Mains Supply: Use 2 pole isolator with power “ON” indicator

Brown

Blue

Boiler On/

Off

c/w neon

Blue

Brown

Red

Green/Yellow

Blue

Br BrBl Bl BlkG/Y

N L N E E N L1

2 4 5 6 7 8 9 10

Yellow

Green/

Yellow

Blue

BrownBrown

Controlled

Thermostat

Figure 8-6: Internal system wall hung - wiring diagram

G/Y

Blue

Limit

Thermostat

3 core white

insulation

4 core white

insulation

L2EL

Red

Blk

G/Y

Green/

Yellow

Lock out

Neon Red

L2 L1

Fit covers as above on plug and socket

Black

Green/ Yellow

Blk

3 core white

insulation

4 core white

insulation

Pump

Burner

L2 L1

Bl G/Y

Section 8: Electrical Page 27

Page 28

9 FLUE SYSTEM AND AIR SUPPLY

9.1 AIR SUPPLY

A sufcient permanent air supply to the boiler should be provided

for the following reasons:

• For proper combustion of fuel and effective discharge of

combustion products to the open air.

• For the ventilation of any conned space in which the boiler

is installed to prevent overheating of the boiler and any equipment in and near the boiler.

It should be both the designer’s and installer’s concern that the air required for these functions be introduced so as to cause as little discomfort as possible to the building occupants and thus to offer them the least temptation to obstruct the ventilators.

Further details may be obtained from BS 5410-1.

! NOTE !

For a boiler tted in a compartment, which is ventilated as

shown, no additional allowance is necessary.

Open ue - Extract fans, where needed, should be in accordance

with Section 5.4.7 in BS 5410-1. All ventilation areas given are for domestic applications and relate

to the full output rating of the boiler. For installations in older dwellings (constructed prior to the

introduction of Approved Document L1A 2006) the rst 5 kW of

output can be ignored. For all other cases refer to BS 5410-2.

Room sealed balanced ﬂue no

ventilation required to room

Room sealed balanced ﬂue

compartment ventilation from outside

Figure 9-1: Air supply for room sealed balanced ue boilers

Room sealed balanced ﬂue

compartment ventilation from room

Table 9-3: Ventilation areas

Output 12/16 16/21

Area cm² in² cm² in²

Vent A 83 13 116 18

Vent B 165 26 231 36

Vent C 83 13 11 6 18

Vent D 165 26 231 36

Vent E 248 38 347 54

9.2 CONVENTIONAL FLUE SYSTEMS

! NOTE !

Under no circumstances can Grant Vortex boilers be

installed with existing ue systems. Only ue systems and components suitable for wet ues should be used.

Failure to install the correct type of ue system will

invalidate the guarantee.

Grant condensing boilers have high operating efciencies and low ue gas temperatures. Care must be taken to ensure the ue system is suitable for the very low ue gas temperatures and condensate in the ue gases.

Suitable conventional ue systems are available from Grant UK. The ue must terminate in a down draught free area, i.e. at least

600 mm above the point of exit through the roof or preferably above the ridge level.

The condensate may be allowed to run back into the boiler. A

condensate drain at the base of the ue system is not required. The high level ue terminal must be at least 600 mm from

any opening into the building, and 600 mm above any vertical structure or wall less than a horizontal distance of 750 mm from the terminal.

If an existing chimney is to be used, it must be lined with a smooth

bore stainless steel liner suitable for use with oil red condensing

boilers. The top and bottom of the annular space must be sealed.

Grant recommends the use of the Grant ‘Orange’ ue system, specically designed for the Vortex range of condensing boilers.

The internal ue and liner diameter for all models up to 46 kW

output must be 100 mm (4 in) and for the 46/58 and 58/70 models 125 mm (5 in).

The maximum vertical height (from the top of the boiler to the terminal) for the ‘Orange’ system is 19 metres.

Conventional open ﬂue Conventional open ﬂue

Conventional open ﬂue

compartment ventilation from outside

compartment ventilation from room

Figure 9-2: Air supply for conventional ue boilers

! NOTE !

The Grant Orange system exible stainless steel liner

is directional. The arrows marked on the liner MUST be pointing vertically upwards, following the direction of the

ue gases. Failure to comply with this instruction could lead to a leakage of condensate from the ue liner.

If a rigid ue is used externally, it must be of the twin-wall type

incorporating seals at all joints, constructed with a stainless steel inner skin and be suitably insulated and weatherproofed. The

internal ue diameter for a rigid ue for all models - up to and

including the 58/70 - is 100 mm (4 in). Use the larger ‘200’ size of ‘Green’ system components as listed in Figure 9-14.

Grant recommends the use of the Grant ‘Green’ and ‘Orange’ ue

system components for this application. Refer to Section 1.3 for details.

Section 9: Flue System and Air SupplyPage 28

Page 29

! NOTE !

As no ue adaptor is supplied with the boiler, in order to

correctly connect the hybrid system, it will be necessary to purchase the Grant CF adaptor kit (product code: CFA15/70).

If required, it is possible to use the white painted single-wall

straight ue extensions, adjustable extensions and elbows from the Grant ‘Orange’ system for the internal section of the ue system, see Figure 9-6. These components can be tted between the boiler connector and ue adaptor. The ue adaptor, to which the external twin-wall ‘Green’ ue components are connected, can therefore be situated just before the ue system passes through

the wall.

! NOTE !

Grant ‘Orange’ system single-wall ue components must

not be used externally.

The maximum vertical height (from the top of the boiler to the terminal) for the 100 mm diameter hybrid ‘Green/Yellow’ system is 8 metres.

Grant ‘Green’ twin-wall ue is recommended for externally run ues to reduce the possibility of the condensate freezing in the ue.

No part of any ue system should be made of an asbestos material; aluminium must not be used in any part of the ue.

Only stainless steel ue components should be used. If the draught conditions are satisfactory, the ue should terminate

with a standard cowl. Refer to the locally applicable Building Regulations, BS 5410:1

and OFTEC Installation Requirements (OFTEC Technical Books 2

and 4) for further guidance on conventional ue systems.

! CAUTION !

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

Only use ue systems suitable for oil red condensing boilers. Do not use re cement. The use of high temperature silicone

sealants is recommended.

Table 9-4: Conventional ue kits

Product code Flexi pack (Orange system)

GFKIT 6/100 100 mm diameter x 6 metre

GFKIT 6/125 125 mm diameter x 6 metre

GFKIT 8/100 100mm diameter x 8 metre

GFKIT 8/125 125mm diameter x 8 metre

GFKIT 10/100 100mm diameter x 10 metre

GFKIT 10/125 125mm diameter x 10 metre

GFKIT 11/100 100mm diameter x 11 metre

GFKIT 11/125 125mm diameter x 11 metre

GFKIT 12/100 100mm diameter x 12 metre

GFKIT 12/125 125mm diameter x 12 metre

GFKIT 14/100 100mm diameter x 14 metre

GFKIT 14/125 125mm diameter x 14 metre

GFKIT 16/100 100mm diameter x 16 metre

GFKIT 16/125 125mm diameter x 16 metre

Extensions

A range of white powder coated single wall extensions are

available to connect the boiler to the exible liner.

The nominal diameter of the extensions is 100 mm or 125 mm. Extensions are supplied with locking bands.

Table 9-5: Extensions

Product code Extensions (Orange system)

WX 150/100 100 mm diameter x 150 mm

WX 150/125 125 mm diameter x 150 mm

WX 250/100 100 mm diameter x 250 mm

WX 250/125 125 mm diameter x 250 mm

WX 450/100 100 mm diameter x 450 mm

WX 450/125 125 mm diameter x 450 mm

WX 950/100 100 mm diameter x 950 mm

WX 950/125 125 mm diameter x 950 mm

Flue extensions cannot be cut. Also available are:

• An adjustable extension (235 to 300 mm)

• 45° elbow

! NOTE !

To comply with the requirements of the Building

Regulations Approved Document J - conventional ue systems must have a ue data plate. A suitable data plate is supplied with the Grant Orange ue system and should be displayed next to the boiler or ue.

FLUE LINING KITS

Grant EZ-Fit Flexi Pack conventional ue system (Orange

System)

A range of Flexi pack conventional ue lining kits are available from Grant UK. The packs have been specically produced for Grant Vortex oil red condensing boilers.

The pack includes a terminal/top plate/exi ue adaptor, stainless steel smooth bore exible ue liner, a rigid to exi adaptor and a boiler ue connector.

Two diameters are available, a 100 mm for models up to 46 kW and 125 mm for models above 46 kW.

! NOTE !

The rigid ue between the boiler and exible ue liner

should incorporate an adjustable section to allow

inspection and cleaning of the ue system.

Section 9: Flue System and Air Supply Page 29

Page 30

Figure 9-6: Grant Orange ue system in a typical brick chimney

Figure 9-7: Hybrid ue system using Grant Orange and Green

systems components

Section 9: Flue System and Air SupplyPage 30

Page 31

9.3 CONNECTING A CONVENTIONAL FLUE

If the Grant ‘Orange’ ue system is being used – follow the instructions supplied with the ue kit.

If the Grant ‘Green’ system (100 mm rigid twin-wall ue) is to be tted to the boiler then the Grant CF adaptor kit (product code:

CFA15/70) must be used – refer to Section 1.3.

To t the adaptor kit, proceed as follows:

1. Fully screw the length of threaded studding (provided in the

kit) into the nut located in the centre of the boiler ue outlet.

2. Fit the boiler connector (from the CF adaptor kit) over the threaded studding.

3. Position ange on to the neoprene gasket around the boiler

ue outlet, ensuring that small spigot on the base of the

connector is located in the hole in the centre of the neoprene gasket and that end of studding passes through the hole in the of the spacer bracket.

4. Fit washer and wing nut provided onto the end of threaded studding and secure connector in position by tightening down on wing nut – as shown in Figure 9-8.

5. Fit the ue adaptor (from the adaptor kit) into the boiler connector.

9.4 BALANCED FLUE SYSTEMS

Apart from a conventional ue, several balanced ue options are

available for use with the Grant Vortex boilers. All are suitable for use with Class C2 Kerosene.

! NOTE !

None of the ﬂue sections in the following system can be cut.

LOW LEVEL HORIZONTAL BALANCED FLUE (YELLOW SYSTEM)

Available in Short (for single thickness brick walls) and Standard kits.

Extensions are available which extend the ue by 225 mm, 450

mm or 675 mm. 90° and 45° elbows are also available.

The maximum ue length - from the centre of the boiler ue outlet

to the outer face of the wall - is 4 metres (with or without elbows included).

No more than 2 x 45 or 1 x 90 elbow should be tted per system. The low level balanced ue (Yellow system) is supplied with a

stainless steel guard. This must be tted in all circumstances to prevent objects from entering the ue outlet.

The guard must be tted centrally over the ue terminal and securely xed to the wall.

Figure 9-8: Boiler ue connector

! NOTE !

Lubricate the seal on the adaptor using the lubricant

provided before attempting to t the ue adaptor.

6. Fit the rst section of ue into the ue adaptor and secure using the clamp band provided.

7. Assemble the remainder of the ue system as required,

lubricating the seal on each component before tting.

Section 9: Flue System and Air Supply Page 31

Figure 9-9: Low level balanced ue

Page 32

HIGH LEVEL (HORIZONTAL) BALANCED FLUE (WHITE SYSTEM)

The High Level (horizontal) balanced ue (White system) allows the ue to rise vertically within the building before exiting through

the wall horizontally.

The maximum ue length - from the top of the boiler ue outlet

to the outer face of the wall - is 10 metres for all Grant Vortex boilers.

The following items are additionally available:

• Extensions to extend the ue by 225 mm, 450 mm or 950

mm.

• An adjustable extension of 275 to 450 mm.

• A 45° elbow - No more than 6 x 45° elbows should be tted

per system. Each elbow reduces the overall maximum length of the system by 1 metre.

VERTICAL BALANCED FLUE (WHITE SYSTEM)

Allows the ue to rise vertically from the boiler to exit through the

roof.

The maximum ue length - from the top of the boiler ue outlet to

the terminal - is 12 metres for all Vortex boilers. The following items are additionally available:

• Extensions to extend the ue by 225 mm, 450 mm or 950

mm.

• An adjustable extension of 275 to 450 mm.

• A 45° elbow - No more than 6 x 45° elbows should be tted

per system. Each elbow reduces the overall maximum length of the system by 1 metre.

Figure 9-10: High level balanced ue

Table 9-11: White system components - product codes

Item 12/16 and 16/21 models

1.2 metre high level adjustable ue kit c/w 90° elbow and terminal HLK015090

Adjustable vertical 3 metre ue kit c/w terminal and storm collar VTK055090

225 mm extension EXTK31225/90

450 mm extension EXTK09450/90

950 mm extension EXTK11950/90

275 to 450 mm adjustable extension EXTK13ADJ/90

45° elbow ELBK2145/90

Pitched roof ashing - aluminium (VTK055090 and VTK0690200) VTMF200

Pitched roof ashing - lead VTK25P90 (includes collar)

Flat roof ashing - aluminium VTK27F90

Wall bracket BRK2990

Section 9: Flue System and Air SupplyPage 32

Page 33

FLEXIBLE VERTICAL BALANCED FLUE (RED SYSTEM)

! NOTE !

One mete of straight ue length should be deducted for every elbow used. If the exible liner has to pass around an offset in the chimney, two metres of straight ue length

should be deducted to compensate for this, i.e. equivalent to two 45° elbows.

The Grant Red system exible stainless steel liner is directional.

The arrows marked on the liner MUST be pointing vertically

upwards, following the direction of the ue gases. Failure to

comply with this instruction could lead to a leakage of condensate

from the ue liner.

Flue extensions cannot be cut, use adjustable extensions where required.

Three types of locking band are supplied with the kit.

The rst type is for connecting ue sections that butt together (2 of

this type of locking band are supplied). The second type is to cover the joint on the adjustable (telescopic)

section.

! NOTE !

The locking band for the adjustable section is labelled for

easy identication.

The third locking band is plastic and supplied in two halves. This

is to secure the plastic exible liner to the adapter. The ue kit includes a Black coated terminal with upstand and is

designed to be xed (using the screws provided) to the top of a

masonry chimney.

The ue system may be offset using 45° elbows (product code:

ELBK2145/90 models up to 26 kW output or ELBK22145/200 for models 26 to 70 kW output).

No more than a maximum of four elbows should be used per system.

Figure 9-12: Red system balanced ue

This is a exible vertical balanced ue system (for the 15/21 and 15/26 models only) designed to be tted inside an existing

masonry chimney. See Figure 9-12. It basically consists of three sections:

• Concentric white painted ue pipe connected to the boiler.

• Vertical concentric exible ue (exible stainless steel ue liner inside a exible plastic air inlet liner).

• Terminal assembly for chimney top mounting.

The ue pipe seals are factory tted and must be lubricated with

the lubricant supplied before assembly. The Red system is supplied as a separate kit. Flue extensions

and 45° elbows from the White system may be used to extend the

ue between the boiler and the exible section of the system. The maximum vertical straight length of ue, from the top of the

boiler to the top of the terminal, is 20 metres – using no more than

four 45° elbows. Deduct 1 metre of straight ue length for every

elbow used.

EXTERNAL BALANCED FLUE (GREEN SYSTEM)

Where it is not practical to use a low level (Yellow system) or

internal high level/vertical (White system) balanced ue, the boiler can be tted with an external vertical/high level ue (Green

system). See Figure 9-13.

The Starter kit ts to the boiler in the same way as a low level balanced ue (Yellow system) and the external Tee allows the connection of a twin wall insulated ue pipe and a combustion air inlet - providing a room sealed ue system.

The external system can terminate at either high level or vertically (above roof level) as required.

See Figure 9-13. The minimum dimensions for locating the terminal from building

features (windows, doors, etc.) are shown in Figure 9-15. The terminal must be positioned so as to avoid products of

combustion accumulating in stagnant pockets around the buildings or entering into buildings. Care should be taken that the

plume from condensed ue gases does not cause a nuisance. The components listed on the following page for the external ue

(Green system) components are available from Grant UK.

Section 9: Flue System and Air Supply Page 33

Page 34

Vertical terminal kit

45° elbow kit

High level terminal kit

Extended wall bracket Wall bracket

Locking band

Extension kits

Starter kit

Figure 9-13: External balanced ue (green system)

Table 9-14: Green system components - product codes

Item 12/16 and 16/21 models

Standard starter kit (stainless steel) GK90B

Short starter kit (stainless steel) GK90SB

150 mm extension GX150/90B

250 mm extension GX250/90B

450 mm extension GX450/90B

950 mm extension GX950/90B

195 - 270 mm adjustable extension GXA250/90B

45° elbow GE45/90B

Straight terminal GTL90B

High level 90° terminal GTH90B

Vertical terminal GTV90B

Wall bracket - standard GWB90B

Wall bracket - extended GEB90B

Section 9: Flue System and Air SupplyPage 34

Page 35

9.5 PREPARE THE WALL

9.5.1 LOW LEVEL BALANCED FLUE

If the boiler is to be used with a low level balanced ue (Yellow system) make the hole in the wall for the ue as shown in Figure

9-15.

9.5.2 HIGH LEVEL AND VERTICAL BALANCED FLUE

If the boiler is to be used with the high level balanced ue (White

system) make the hole in the wall as shown in Figure 9-17.

Rear ﬂue Side ﬂue

Figure 9-15: Flue hole dimensions and position for low level system

Table 9-16: Low level balanced ue hole cutting dimensions

Dimension (mm)

A (dia.) B C D

127 110 H + 755* 220

* H is the height from the oor to the underside of boiler casing

! NOTE !

Dimension A given in Figure 9-11 includes an extra 10 mm

over the size of the terminal to provide clearance for tting.

Rear ﬂue Side ﬂue

Figure 9-17: Flue hole dimensions and position for high level system

Table 9-18: High level balanced ue hole cutting dimensions

Dimension (mm)

A (dia.) B C min D min D ma x E

175 110 TBC TBC TBC 220

* Dimension C for starter section and elbow/terminal only

! NOTE !

Dimension A given in Figure 9-12 includes an extra 10 mm

over the size of the terminal to provide clearance for tting.

Fitting instructions for the high level balanced ue and vertical balanced ue are supplied with the ue kits.

Adjustable extensions

The adjustable extensions are telescopic. The wall terminal section is adjustable and is suitable for a wall

thickness of 215 mm to 450 mm. Simply adjust to the required length using a twisting motion. The

outer pipes must overlap by a minimum of 25 mm.

Section 9: Flue System and Air Supply Page 35

Page 36

9.6 FLUE CLEARANCES

Figure 9-19: Flue clearances

Section 9: Flue System and Air SupplyPage 36

Page 37

Table 9-20: Flue clearances

Ref Location of outlet

Directly below an opening, air brick opening, opening window, etc.

Horizontally to an opening, air brick opening, opening window, etc.

Below a gutter, eaves or balcony with protection

Below a gutter, eaves or balcony without protection

From vertical sanitary pipework

From an internal or external corner

Above ground or balcony level

From a surface or boundary facing the terminal

From a terminal facing the terminal

Vertically from a terminal on the same wall

Horizontally from a terminal on the same wall

Above the highest point of an intersection with the roof

From a vertical structure to the side of the terminal

Above a vertical structure less than 750 mm from the side of the terminal

From a ridge terminal to a vertical structure on the roof

Above or to the side of any opening on a at or sloping roof

Below any opening on a sloping roof

From oil storage tank (Class 1)

A heat shield at least 750 mm wide must be tted to provide protection of combustible material.

Clearances required by BS 5410-1:2014 to alleviate the effect of plume nuisance. If a risk assessment shows that there will be no impact from pluming,

then the ‘pressure jet’ gure could apply - seek conrmation from Local Authority Building Control.

Seek guidance from OFTEC Book 3 (Oil Storage and Supply).

***

Minimum distance (mm)

Pressure jet Condensing

600 1,000 **

75 * 1,000 **

600 1,000 **

300

600 2,500 **

1,200

1,500

750

600

750

600

1,500

300

1,000

1,800 ***

NOTES

1. Appliances burning class D fuel have additional restrictions. Refer to BS 5410-1:2014.

2. Vertical structure in N, O and P includes tank or lift rooms, parapets, dormers, etc.

3. Terminating positions A to L are only permitted for appliances that have been approved for low level ue discharge when tested in accordance with BS EN 303-1, OFS A100 or OFS A101.

4. Terminating positions should be at least 1.8 metres from an oil storage tank (Class 1) unless a wall with at least 30 minutes re resistance and extending 300 mm higher and wider than the tank is provided between the tank and the terminating position.

5. Where a ue is terminated less than 600 mm away from a projection above it and the projection consists of plastics or has a combustible or painted surface, then a heat shield of at least

750 mm wide should be tted to protect these surfaces.

6. If the lowest part of the terminal is less than 2 metres above the ground, balcony, at roof or other place to which any person has access, the terminal should be protected by a guard.

7. Notwithstanding the dimensions given above, a terminal should not be sited closer than 300 mm to combustible material. In the case of a thatched roof, double this separation distance

should be provided. It is also advisable to treat the thatch with a re retardant material and close wire in the immediate vicinity of the ue.

8. A ue or chimney should not pass through the roof within the shaded area delineated by dimensions Q and R.

9. Where protection is provided for plastics components, such as guttering, this should be to the standard specied by the manufacturer of the plastics components.

10. Terminals must not be sited under car ports.

11. Terminals at low levels (terminals under 2.1 metres) have more restrictive recommendations and should not be positioned near public footways, frequently used access routes, car parking spaces less than 2.5 metres from the terminal or patio’s (hard surface area).

Further guidance can be obtained from BS 5410-1:2014, OFTEC Book 4 (Installation) and Approved Document J.

Grant UK ue products are fully compliant with the CE (Communauté Européenne/European Community) standards having undergone rigorous product testing.

Section 9: Flue System and Air Supply Page 37

Page 38

10 COMMISSIONING

To ensure safe and efcient operation, it is essential that a Grant

Eco Wall Hung boiler is commissioned as detailed in the following procedure.

To access the controls, open the lower front panel by pulling it down as shown in Figure 10-1.

The controls are shown in Figure10-2. To access the remainder of the boiler, remove the upper front

panel. To do this, hold the lower edge of the panel and pull it sharply outwards to disengage the retaining clips and lift off from the boiler.

Figure 10-1: Boiler lower front panel in down position

Figure 10-2: Boiler controls

Section 10: CommissioningPage 38

Page 39

10.1 BEFORE SWITCHING ON

+––+

222

1. Ensure the boiler is isolated from the electrical supply and the boiler On/Off switch is set to OFF.

2. Check that the high limit thermostat bulb and boiler thermostat bulb are correctly located in their respective pockets. Check condition of both thermostat capillaries. Ensure they are not damaged, broken, kinked or crushed.

3. Remove the nuts and washers securing the front cleaning door. Withdraw the door – take care as it is heavy!

4. Check that the turbulators are in position and that the ends are vertical.

5. Check that the bafes are in position. Refer to Figure 11-1.

6. Ret cleaning door and check that it is tted correctly and that a good seal is made.

7. Slacken of the hose clip and disconnect the exible air inlet (snorkel) tube from the burner.

8. Unscrew the burner xing nut (located at the top of the

mounting ange), rotate the burner clockwise and remove the

burner from the boiler. The burner has a slotted lug on the underside of the fan

housing. This allows the burner, when removed from the boiler, to be hung on the bolt on the front of the combustion door for checking/servicing.

10.2 BURNER SETTINGS

With the burner removed from the boiler:

1. Remove the burner head. Refer to Figure 10-3. Loosen the

two xing screws and remove the head from the burner.

! NOTE !

With two exible hoses connected to the burner, identify

(mark if necessary) which is the inlet and return if they are to be disconnected.

9. Check/adjust the burner settings as described in Section

10.2.

10. Re-t the burner to the boiler and tighten the xing nut. DO NOT OVERTIGHTEN!

11. Ensure that the condensing heat exchanger has been vented via the automatic air vent.

12. Ensure the automatic air vent on the condensing heat exchanger is open.

13. Check that all fuel line valves are open.

14. Connect a combined vent manifold and pressure gauge to the pressure gauge connection port on the oil pump. Open the vent screw on the vent manifold to vent the supply while the pump is running.

15. Check that all system controls are calling for heat and turn the boiler thermostat to maximum.

Figure 10-3: Removal of burner head

2. Check the nozzle is correct for the required boiler output. Refer to Table 2-2 for the correct nozzle size and type for the required boiler output.

3. If the nozzle needs to be replaced – remove the diffuser/ electrode assembly. Refer to Figure 10-4.

• Using a 3 mm Allen key, loosen the diffuser xing screw

on the electrode assembly.

• Lift the diffuser/electrode assembly up and off the nozzle

holder.

• Disconnect both ignition leads from the electrodes.

4. Use a 16mm spanner to remove /re-t the nozzle, whilst holding the nozzle holder using another 16mm spanner.

! CAUTION !

The use of an ill-tting spanner will damage the nozzle and could lead to an incorrect ame pattern and poor

combustion.

! NOTE !

Ensure that the nozzle is securely tightened so it does not leak but DO NOT OVERTIGHTEN!

5. Re-t the diffuser/electrode assembly. Refer to Figure 10-4. Re-connect ignition leads to electrodes.

Re-t the diffuser/electrode assembly onto the nozzle holder lining up the xing screw with the with the recess in the

nozzle holder.

Ensure diffuser assemble is tted down hard onto the

shoulder on the nozzle holder.

Tighten the xing screw to secure the diffuser/electrode

assembly in place on the nozzle holder.

! NOTE !

Do not overtighten the xing screw as this may damage

the electrode insulator.

Section 10: Commissioning Page 39

6. Check/adjust the electrode setting. Refer to Figure 10-4. Always check the electrode settings after replacing the

nozzle.

Page 40

Check the distance beetwen

tips of electrodes.

Figure 10-4: Ignition electrode settings

7. Re-t the burner head. Refer to Figure 10-3.

• Locate the head xing screws in the countersunk slots in

the burner collar.

• Check/adjust the electrode setting. Refer to Figure 10-4.

• As the head will only t one way, rotate the head until

the two screws align with the slots.

• Tighten the two screws to secure the head in position on

the burner.

8. Check/adjust the diffuser position. Refer to Figure 10-4.

A-A

Check the distance beetwen

nozzle/electrodes and

diffuser/electrodes.

! NOTE !

• Position the gauge on the internal shoulder of the

burner head so the leg for the required output is pointing towards the nozzle.

• Check that the gauge is at 90°to the internal shoulder of

the burner head and across the full diameter.

• If the diffuser setting is correct, the tip of the gauge leg

will just touch the front face of the nozzle, with the gauge still in contact with the internal shoulder of the burner head on BOTH sides. Refer to Figure 10-5.

• If the gauge leg is in contact with the nozzle face but

the gauge is NOT in contact with the internal shoulder of the burner head on BOTH sides, the diffuser must be ‘opened’ (see below).

• If the gauge leg does not reach the nozzle with the

gauge is in contact with the internal shoulder of the burner head on BOTH sides, the diffuser must be ‘closed’ (see below).

To adjust the diffuser position:

• If necessary, adjust the diffuser position by rotating the

adjustment screw, located on the front of the burner, using a 4mm Allen key. Refer to Figure 10-3. Re-check the diffuser setting using the gauge, as described above.

• To increase the distance between the nozzle face

and internal shoulder of the burner head (to open the diffuser): rotate the adjusting screw clockwise.

• To decrease the distance between the nozzle face

and internal shoulder of the burner head (to close the diffuser): rotate the adjusting screw anti-clockwise.

! NOTE !

One full rotation of the adjuster screw is approximately 1mm of diffuser (and nozzle) movement.

The diffuser position MUST be correctly set for the burner to operate correctly.

The diffuser position is correctly set when the distance between the internal shoulder of the burner head and the face of the nozzle is as given in Table 2-2.

• Refer to Table 2-2 for the required distance (diffuser

setting) for the boiler output required. This is the distance from the front face of the nozzle to the internal shoulder of the burner head. Refer to Figure 10-5.

• Check the distance using the gauge supplied with the

burner.

! NOTE !

It is essential that the nal position of the diffuser is

checked, using the gauge provided with the boiler, and the diffuser adjusted as necessary to achieve the required position.

10.3 SWITCHING ON

1. Switch on the electricity supply.

2. Set the boiler On/Off switch to ON. A Neon on the switch lights when it is in the ON position. The boiler will now light automatically. Note that the neon lights when the boiler is switched on, but does not necessarily indicate that the burner

is ring. The burner should then re. Open the vent screw on the vent

manifold to vent the supply while the burner is ring.

3. The burner fan should start and the burner should light within about 12 seconds. If the burner does not light and the ‘Lockout’ reset button on the burner lights, wait about 45 seconds and press the reset button to restart the ignition process.

This procedure may have to be repeated several times during

rst lighting.

4. With the burner alight, check the fuel pressure. Refer to Section 2.3 (burner settings).

5. Adjust the pressure if necessary.

Check the distance beetwen nozzle and

recirculation pipe.

Figure 10-5: Checking the diffuser position using the gauge provided

• The three possible boiler output settings are stamped on

three of the legs of the gauge.

• To use the gauge: Identify the correct leg of the gauge

that matches the required boiler output.

! NOTE !

It is important that the oil pressure is correctly set.

6. Operate the boiler until it reaches normal operating temperature. Check oil supply/return pipe for leaks, rectifying where necessary.

7. Check the operation of the boiler thermostat. Ensure that by turning it anticlockwise it switches the burner off.

8. With the burner alight, re-check the fuel pressure and readjust if necessary. Turn the boiler off, remove the pressure

Section 10: CommissioningPage 40

Page 41

gauge and replace the plug in the pump.

9. Ensure that there are no oil leaks.

10. On balanced ue installations – ensure the exible air inlet

tube and the exible air tube is connected to both the burner air inlet and the ue system.

10.4 RUNNING THE BOILER

1. Re-light the boiler and allow it to run for at least 20 minutes.

2. Check the smoke number, if it is 0-1 then it is satisfactory.

3. Using a calibrated electronic ue gas analyser, set to the

correct fuel, check the %CO

in the ue gases.

! NOTE !

To allow the boiler to be commissioned and serviced correctly a combustion test point is provided on the front cleaning door. Both the %CO carried out using this test point.

This test point is not suitable for measuring boiler

efciency or conventional ue draught.

When using the test point on the cleaning cover note that

the ue gas temperature reading will be higher than that measured in the ue thus resulting in an inaccurate efciency reading. To obtain an accurate ue gas temperature and efciency, the reading can only be measured outside through the low level ue terminal (or the test point on the conventional ue started section when used).

For high level and vertical balanced ues, the reading may be taken from the ue test point provided on the ue system.

Refer to Section 9.

For conventional ues, a test point is provided in the conventional ue adaptor for ue draught and ue gas

temperature measurement. Refer to Section 9.

4. Set the %CO required value given in Section 2.3 for the boiler concerned.

5. Adjust the burner air damper by rotating the adjuster knob (see Figure 10-3) to achieve the required %CO

6. To increase the %CO

• Turn the knob anti-clockwise. This will close the burner

air damper and decrease the combustion air entering the burner.

To decrease the %CO

• Turn the knob clockwise. This will open the burner air

damper and increase the combustion air entering the burner.

7. When the %CO smoke number if the damper has been moved. Under no circumstances must the smoke number be above 1.

, as indicated on the ue gas analyser, to the

is set to the correct level, re-check the

and smoke test may all be

10.5 BALANCING THE SYSTEM

1. When the boiler has been adjusted and is running satisfactorily, balance the central heating system by adjusting the radiator lock shield valves.

Start with the radiator nearest the boiler and adjust the valves to achieve the required temperature drop across each radiator. If thermostatic radiator valves have been installed, check the system by-pass.

2. Switch off the boiler.

10.6 COMPLETION

1. With the system hot, check again for leaks, rectifying where necessary. Drain the system while it is hot to complete the

ushing process. Rell and vent (and pressurise if a sealed

system) the system.

2. A suitable central heating system inhibitor must be added to protect the system against the effects of corrosion.

3. A suitable antifreeze should be used to prevent damage to the boiler in areas where the electrical power failure can occur in winter months.

4. Replace the upper and lower front panels on the boiler.

! NOTE !

After commissioning the boiler complete the Commissioning Report in the front of this manual and the OFTEC CD/11 commissioning report. Leave the top copy with the User and retain the carbon copy.

If the boiler is to be left in service with the User, set the controls, remote programmer and room thermostat to the User’s requirements.

If the boiler is not to be handed over immediately, close the boiler fuel supply valve and switch off the electricity supply.

! CAUTION !

If there is any possibility of the boiler being left during frost conditions, then the boiler and system should be drained. Alternatively, a suitable heating system antifreeze should be used.

! NOTE !

For safer and efcient operation of the boiler it is essential

that the air damper is correctly set to give the required %CO2 in the ue gases.

Section 10: Commissioning Page 41

Page 42

11 SERVICING

To ensure efcient operation of the boiler it is essential that a

Grant Eco Wall Hung boiler is serviced at regular intervals of no longer than 12 months.

Servicing and replacement of parts must only be carried out by a

suitably qualied engineer.

! CAUTION !

Details of every service should be entered in the Service Log, in the Boiler Handbook.

This information may be required to validate the Grant extended guarantee.

! WARNING !

Before starting any work on the boiler, or fuel supply please read the Health and Safety information given in Section 14 of these instructions.

11.1 CHECKS BEFORE SERVICING

The following sequence of checks should be made before starting any servicing work:

1. Check the ue terminal and ensure it is not blocked or

damaged.

2. Run the boiler and check the operation of its controls.

3. Ensure that all water system connections and ttings are

sound. Remake any joints and check the tightness of any

ttings that may be leaking.

4. Allow the boiler and system to cool down.

5. If the boiler is used on a sealed central heating system, check the system pressure, check the operation of the pressure relief valve and check the expansion vessel air charge. Refer to Section 7.

6. Rell, vent and re-pressurise the system as necessary. Refer to Section 7.

7. Check that any ventilation openings are of adequate free area and are clear. Refer to Section 7.

8. Remove any sludge/water from the fuel tank by opening the

sludge valve at the lower end of the tank (if tted).

9. Ensure that all fuel system connections and ttings are sound. Remake any joints and check the tightness of any

ttings that may be leaking.

10. With the fuel supply valve (at the oil tank) closed, clean/

replace the lter element and clean the lter bowl.

11.2 DISMANTLING PRIOR TO SERVICING

The procedure for dismantling the boiler is as follows:

1. Remove the front panels from the boiler. To remove the lower front panel: open by pulling top edge

down, slide panel to left or right and detach from the boiler. To remove the upper front panel: hold the lower edge of the

panel and pull it sharply outwards to disengage the retaining clips and lift off from the boiler.

2. On System models, carefully lift up and remove the expansion vessel from the boiler. Place the vessel on the

front of the boiler. A clip is tted to clip it on to the top front

edge of the casing.

3. Slacken of the hose clip and disconnect the exible air inlet (snorkel) tube from the burner.

4. Unscrew the burner xing nut (top of mounting ange) and rotate the burner clockwise and withdraw the burner from the boiler.

The burner has a slotted lug on the underside of the fan housing. This allows the burner, when removed from the boiler, to be hung on the bolt on the front of the combustion door for checking/servicing.

5. If required, disconnect the exible oil line(s), using a suitable container to prevent any oil spillage.

6. Check or replace the exible fuel supply hose(s), as follows:

• Braided exible fuel supply hoses (as supplied with the

boiler) should be replaced annually i.e. when the boiler is serviced.

• Long-life hoses should be inspected annually. If in doubt

replaces the hose(s). In any event, these hoses must be

replaced every ve years.

! NOTE !

With a two-pipe oil supply there will be two exible hoses

connected to the burner. Identify (mark if necessary) which is the inlet and return if they are to be disconnected.

! WARNING !

Before servicing, set the boiler On/Off switch to OFF, isolate the electricity supply and close the fuel supply valve.

The data label on the inside of the case side panel will indicate

the fuel used and the nozzle tted.

Section 11: ServicingPage 42

Page 43

11.3 CLEANING THE BOILER

The procedure for cleaning the boiler is as follows:

1. Remove the nuts and washers securing the front cleaning door and withdraw the door. Take care – it is heavy.

2. Remove the bafes as shown in Figure 11-1.

11.4 CLEANING THE BURNER

With the burner removed from the boiler:

1. Remove the burner head. Refer to Figure 10-3. Loosen the

two xing screws and remove the head from the burner.

2. Clean the burner head.

3. Remove the diffuser/electrode assembly. Refer to Figure 10-

• Using a 3mm Allen key, loosen the diffuser xing screw

on the electrode assembly.

• Lift the diffuser/electrode assembly up and off the nozzle

holder.

• Disconnect both ignition leads from the electrodes.

4. Use a 16 mm spanner to remove/re-t the nozzle, whilst

holding the nozzle holder using another 16 mm spanner.

! CAUTION !

The use of an ill-tting spanner will damage the nozzle and could lead to an incorrect ame pattern and poor

combustion.

5. Inspect the ignition electrodes – remove the electrode xing

screw and withdraw the electrode assembly. Wipe clean and check for any cracks on the insulation. Replace if necessary.

6. Re-t the diffuser/electrode assembly. Refer to Figure 10-4.

• Re-connect ignition leads to electrodes.

• Re-t the diffuser/electrode assembly onto the nozzle holder lining up the xing screw with the with the recess

in the nozzle holder.

• Ensure diffuser assemble is tted down hard onto the

shoulder on the nozzle holder.

• Tighten the xing screw to secure the diffuser/electrode

assembly in place on the nozzle holder.

Figure 11-1: Removing the bafes

3. Remove all deposits from the bafe plates and all the boiler

internal surfaces using a stiff brush and scraper if necessary.

4. Check the condition of the ue, clean as necessary.

5. Check the condition of the front cleaning door seal and replace if necessary.

6. Replace the bafes, ensuring they are correctly tted. Refer to Figure 11-1.

7. Pull out the spiral turbulators from the heat exchanger tubes.

8. Clean the turbulators using a stiff brush.

9. Test the heat exchanger condensate drain by pouring water into one of the lower tubes and observe whether the water discharges from the 22mm condensate outlet. Replace the turbulators.

10. Replace the front cleaning door, ensuring the seal is in good condition and secure it in position with the nuts and washers previously removed. Tighten to form a seal.

11. Remove the condensate trap and check that it is not blocked

and is operating correctly, i.e. the oat is free to move. Clean the trap and oat as required. Refer to Section 6.8.

12. Check that the boiler condensate outlet is unobstructed. Clean if necessary.

! NOTE !

The condensate trap and condensate outlet must be checked on every service and cleaned as necessary.

! NOTE !

Do not overtighten the xing screw as this may damage

the electrode insulator.

7. Check/adjust the electrode setting. Refer to Figure 10-4. Always check the electrode settings after replacing the

nozzle.

8. Re-t the burner head. Refer to Figure 10-3.

• Locate the head xing screws in the countersunk slots in

the burner collar.

• Check/adjust the electrode setting. Refer to Figure 10-3.

• As the head will only t one way, rotate the head until

the two screws align with the slots.

• Tighten the two screws to secure the head in position on

the burner.

9. Adjust the diffuser position. Refer to Figure 10-5.

! NOTE !

The diffuser position MUST be correctly set for the burner to operate correctly.

The diffuser position is correctly set when the distance between the internal shoulder of the burner head and the face of the nozzle is as given in Table 2-2.

• Refer to Table 2-2 for the required distance (diffuser

setting) for the boiler output required. This is the distance from the front face of the nozzle to the internal shoulder of the burner head. Refer to Figure 10-3.

• Check the distance using the gauge supplied with the

burner.

• The three possible boiler output settings are stamped on

three of the legs of the gauge.

• To use the gauge: Identify the correct leg of the gauge

that matches the required boiler output.

• Position the gauge on the internal shoulder of the

burner head so the leg for the required output is pointing

Section 11: Servicing Page 43

Page 44

towards the nozzle.

• Check that the gauge is at 90°to the internal shoulder of

the burner head and across the full diameter.

• If the diffuser setting is correct, the tip of the gauge leg

will just touch the front face of the nozzle, with the gauge still in contact with the internal shoulder of the burner head on BOTH sides.

• If the gauge leg is in contact with the nozzle face but

the gauge is NOT in contact with the internal shoulder of the burner head on BOTH sides, the diffuser must be ‘opened’ (see below).

• If the gauge leg does not reach the nozzle with the

gauge is in contact with the internal shoulder of the burner head on BOTH sides, the diffuser must be ‘closed’ (see below).

To adjust the diffuser position:

• If necessary, adjust the diffuser position by rotating the

adjustment screw, located on the front of the burner, using a 4mm Allen key. Refer to Figure 10-3. Re-check the diffuser setting using the gauge, as described above.

• To increase the distance between the nozzle face

and internal shoulder of the burner head (to open the diffuser): rotate the adjusting screw clockwise.

• To decrease the distance between the nozzle face

and internal shoulder of the burner head (to close the diffuser): rotate the adjusting screw anti-clockwise.

! NOTE !

One full rotation of the adjuster screw is approximately 1mm of diffuser (and nozzle) movement.

! NOTE !

It is essential that the nal position of the diffuser is

checked, using the gauge provided with the boiler, and the diffuser adjusted as necessary to achieve the required position.

10. Continue cleaning the other burner components as detailed in Section 11.5

11.5 CLEANING THE BURNER

The procedure for cleaning the burner is:

Photocell

The photocell is a push-t in the front of the burner body.

1. Holding the body of the photocell and NOT the cable, carefully pull the photocell out of the burner.

2. Clean the sensor end of the photocell.

3. Replace photocell back in the burner and check that it is fully pushed in.

Burner air inlet

This is located on the right hand side of the burner. Refer to Figure 10-3.

1. Using a 4mm Allen key, unscrew and remove the two screws and remove the air inlet from the burner.

2. Check inside and remove any debris, leaves, hair, uff, etc. from the air inlet housing and air damper.

Burner fan housing

This is located over the fan impeller. Refer to Figure 10-3. With the burner air inlet already removed:

1. Using a 4mm Allen key, unscrew and remove the four screws and remove the fan housing from the burner.

2. Check and clean the fan impeller and remove any debris,

leaves, hair, uff, etc.

3. Check/clean the fan housing.

4. Check the rubber seal around the fan housing. Replace if damaged or missing.

5. Re-t the fan housing to the burner and secure with the four screws.

6. Re-t the burner air inlet to the burner and secure with the two screws.

Oil pump lter

This is located under the end cover on the oil pump. Refer to Figure 10-3.

1. Using a 4mm Allen key, unscrew and remove the four cap screws securing the pump end cover. Remove end cover from pump.

2. Remove the lter and wash in kerosene.

3. Check the O-ring seal around the end cover. Replace if damaged.

4. Ret the lter and end cover.

5. Re-t the four cap screws, tighten evenly, to secure the end cover.

11.6 RECOMMISSIONING

! WARNING !

To ensure safe and efcient operation of the boiler it is

important that re-commissioning is carried out, especially combustion checks (%CO2 level, ue gas temperature and smoke number) after the boiler has been serviced. Refer to the Commissioning instructions in Section 10.

Section 11: ServicingPage 44

Page 45

12 FAULT FINDING

12.1 BURNER FAULT FINDING CHARTS

12.1.1 BURNER FAILS TO START, NO FLAME, NO LOCK OUT

Symptoms Possible causes Actions

Motor fails to run No electrical supply to boiler ► Check ON/OFF switch is ON - mains neon is lit

▼ ▼

Lock-out light not lit Fuse has blown ► Check or replace fuse

▼

If fuse has blown - check reason for failure

Boiler thermostat not calling ► Adjust boiler thermostat to call for heat

Heating controls are not calling ► Adjust programmer and room thermostat to call

Overheat thermostat has operated ► Check and reset overheat thermostat if required

▼

If operated - check reason for operation

No power to burner ► Check for 230 volts at control box mains terminals

Control box faulty ► Replace faulty control box

12.1.2 BURNER FAILS TO START, NO FLAME, GOES TO LOCKOUT

Symptoms Possible causes Actions

Motor fails to run No power to burner motor ► Check for 230 volts at motor plug terminals

▼

Burner lockout Burner motor capacity faulty ► Check and replace if necessary

Burner motor faulty ► Replace burner motor

Burner motor stalled

▼

Seized oil pump ► Check and replace faulty oil pump

Section 12: Fault Finding Page 45

Page 46

12.1.3 BURNER STARTS, NO FLAME, GOES TO LOCKOUT

Symptoms Possible causes Actions

Motor runs Flame instability

▼ ▼

Burner pre-purges Carbon / soot on combustion head ► Clean blast tube

▼ ▼

Burner does not re No oil pressure ► Check pump drive coupling - replace if failed

▼

Burner lock-out Low oil pressure ► Check oil pump pressure is correct

▼

Excessive combustion air ► Adjust air damper setting

▼

Excessive ue draught (CF only) ► Rectify condition (is a draught stabiliser required?)

False light ► Check photocell is not sensing ambient light

No ignition spark ► Check HT lead connections are sound

Check ignition electrode gap is correct

Check for 230 volts at ignition transformer

Check transformer - replace if faulty

No oil at nozzle ► Check for sufcient fuel in tank

Check re valve has not tripped

Check all oil supply valves are open

Check oil line and pump is not air-locked

Check operation of solenoid valve

Check pump drive coupling - replace if failed

Check fuel pump - replace if seized

Restriction in oil supply ► Check lters, valves and oil lines and rectify

Fuel contamination (water in tank) ► Check tank, lters and oil line for water

12.1.4 BURNER FIRES, GOES TO LOCKOUT

Symptoms Possible causes Actions

Motor runs Flame instability

▼ ▼

Burner pre-purges Carbon / soot on combustion head ► Clean combustion head

▼ ▼

Burner res Fuel contamination (water in tank) ► Check tank, lters and oil line for water

▼

Burner lockout Low oil pressure ► Check oil pump pressure and adjust if necessary

▼

Excessive combustion air ► Adjust air damper setting

▼

Excessive ue draught (CF only) ► Rectify condition (is a draught stabiliser required?)

Photocell not sensing light ► Check photocell is clean and unobstructed

Photocell failed ► Replace faulty photocell

Defective nozzle ► Replace nozzle

Section 12: Fault FindingPage 46

Page 47

12.1.5 DELAYED IGNITION, BURNER STARTS VIOLENTLY

Symptoms Possible causes Actions

Burner pulsates on start up

Burner starts violently Delayed ignition ► Check electrode settings

Excessive combustion air ► Recommission burner - adjust air setting

Low oil pressure ► Check and recommission burner

Partially blocked nozzle ► Replace nozzle

Fuel contamination (water in tank) ► Check tank, lters and oil line for water

Fan slipping on shaft ► Check and re-tighten

Pump coupling loose or worn ► Check and replace

Check electrodes for damage

Check HT lead connections are sound

Check HT leads for damage or arcing

12.1.6 BURNER CYCLES ON AND OFF

Symptoms Possible causes Actions

Burner ring Restriction in oil supply ► Check lters, valves and oil lines and rectify

▼

Burner stops ring Fuel contamination (water in tank) ► Check tank, lters and oil line for water

▼

Pre-purge starts Partially blocked nozzle ► Replace nozzle

▼

Burner res Vitiated combustion air (balanced ue only) ► Disconnect snorkel tube and check operation

▼ ▼

Burner stops ring Check ue terminal for obstructions and rectify

▼

Check ue system for leaks and rectify

Boiler thermostat hunting ► Replace faulty thermostat

Section 12: Fault Finding Page 47

Page 48

13 SPARE PARTS

This section gives exploded views of the Ecoam Max 1 low NOx yellow ame burners in the Grant Vortex Eco Wall Hung boilers, and

parts lists associated with them.

0170 0290

0270 0120

0140

0150

0110

01600250

0260

0180

0100

0130

0030 0090 00800300

0050

0010

0230

0020

0240

0210

0190

Figure 13-1: Ecoam Max 1 low NOx yellow ame burner exploded diagram - 15/21, 15/26, 26/36 and 36/46kW models

0220

0200 0280

Section 13: Spare PartsPage 48

Page 49

• Combustion head (16-21) 65327409 EBS65327409

• Combustion head (12-16) 65327408 EBS65327408

• Diffuser (16-21) 65327412 EBS65327412

• Diffuser (12-16) 65327411 EBS65327411

• Nozzle - 0.40/80°S - M1BS27/100

• Nozzle - 0.40/80°EH - M1BS27/50

• • Nozzle - 0.50/80°EH - M1BS27/46

• Nozzle - 0.60/80°EH - M1BS27/31

0030 • • Coupling 65322920 EBS65322920

0050 • • Hoses 65327402 EBS65327402

0020 • • Coil (Danfoss BFP T85) 65327293 EBS65327293

0010 • • Oil pump (Danfoss BFP11 R3 65322968 EBS65322968

Key No. 12-16 16-21 Description Ecoam product code Grant product code

0090 • • Capacitor (4 μF) 13011117 EBS13011117

0100 • • Ignition transformer 65323257 EBS65323257

0080 • • Motor 65326747 EBS65326747

0110 • • Control box with cables 65327403 EBS65327403

0130 • • Support 65327405 EBS65327405

0120 • • Photoresistor 65327404 EBS65327404

0170 • • Cover air inlet 65327407 EBS65327407

0150 • • Fan 65323826 EBS65323826

0160 • • O-ring 65321066 EBS65321066

0140 • • Plug and cable 65327406 EBS65327406

0180 • • Cables 65320934 EBS65320934

0200

0190 • • Electrodes 65327306 EBS65327306

0220

0210 • • Nozzle holder 65327410 EBS65327410

0250 • • Flange 65320975 EBS65320975

0240 • • Rod 65327414 EBS65327414

0230 • • Conveyor 65327413 EBS65327413

0270 • • Oil pipe 65327415 EBS65327415

0260 • • Gasket 65321089 EBS65321089

0280

0300 • • Set lter and seal 65325684 EBS65325684

0290 • • Ring 65320513 EBS65320513

Figure 13-2: Ecoam Max 1 low NOx burner parts list

Section 13: Spare Parts Page 49

Page 50

14 DECLARATION OF CONFORMITY

EC DECLARATION OF CONFORMITY

In accordance with BS EN ISO/IEC 17050-1:2004

We: Grant Engineering (UK) Limited

Of: Hopton House

Hopton Industrial Estate Devizes SN10 2EU

Telephone: +44 (0)1380 736920 Fax: +44 (0)1380 736991 Email: [email protected] Website: www.grantuk.com

Declare that: Equipment: Domestic oil boilers Model Name/Number: Grant Vortex Eco Wall Hung 12-16 and 16-21

Indoor Grant Vortex Eco Wall Hung System 12-16 and 16-21 Indoor

Note: All Grant system variants are supplied with glandless high efciency integrated circulators

In accordance with the following Directives:

2006/95/EEC Conforms with the safety objectives of the Low Voltage Directive and its amending directives. 2004/108/EC Conforms with the essential protection requirements of the Electromagnetic Compatibility

Directive and its amending directives.

92/42/EC Conforms with the requirements of the Boiler Efciency Directive.

2010/30/EU Conforms with the Labeling of Energy related products to EU (no) 811/2013 2009/125/EC Conforms with the Ecodesign of Energy related products to EU (no) 813/2013

I hereby declare that the equipment named above has been tested and found to comply with the relevant sections of the above

referenced specications. The unit complies with all essential requirements of the Directives.

Responsible Person: Neil Sawers Position: Technical Manager Signature:

Date: 23rd September 2016

Section 14: Declaration of ConformityPage 50

Page 51

15 HEALTH AND SAFETY INFORMATION

Under the Consumer Protection Act 1987 and Section 6 of the Health & Safety at Work Act 1974, we are required to provide information on substances hazardous to health (COSHH Regulations 1988).

Adhesives, sealants and paints used in the manufacture of the product are cured and present no known hazards when used in the manner for which they are intended.

The following other materials are present in the product:

15.1 INSULATION MATERIALS

Material Types:

Ceramic bre board, mineral wool.

Description:

Rigid board, slabs, sleeves, gaskets, ropes.

Known Hazards:

May cause temporary irritation or rash to skin. High dust levels may irritate eyes and upper respiratory system.

Precautions:

Avoid unnecessary or rough handling, or harsh abrasion of boards. Normal handling and use of material should not produce high dust levels.

Avoid inhalation, and contact with skin and eyes. After handling always follow normal good hygiene practices.

Protection:

Use disposable gloves, face mask and eye protection.

First Aid:

Eyes - If irritation occurs, wash eyes with copious amounts of water.

If symptoms persist, seek immediate medical advice. Skin

If irritation occurs, wash under running water before washing with soap and water.

Inhalation Remove to fresh air, drink water to clear throat and blow nose to

remove dust/bres.

Ingestion Drink plenty of water.

15.3 KEROSENE AND GAS OIL FUELS

(MINERAL OILS)

Known Hazards:

The effect of mineral oils on the skin vary according to the duration of exposure and the type of oil.

The lighter fractions remove the protective grease naturally present on the skin, leaving it dry, liable to crack and more prone to damage by cuts, abrasions and irritant chemicals.

Skin rashes (Oil acne) most often on arms, but also on any part of the body in contact with oil or oily clothing.

Contact with fuel oils can cause dermatitis.

Precautions:

Avoid as far as possible any skin contact with mineral oil or with clothing contaminated with mineral oil.

The use of a lanolin-based barrier cream is recommended, in conjunction with regular washing with soap and rinsing with water to ensure all oil is removed from the skin.

Take care to prevent clothing, especially underwear, from becoming contaminated with oil.

Do not put oily rags or tools in pockets, especially trouser pockets.

Have rst-aid treatment at once for an injury, however slight.

Do not inhale any vapours from mineral oils.

15.2 SEALANT AND ADHESIVE

Material Types:

Silicone elastomer.

Description:

Sealant and adhesive.

Known Hazards:

Irritation to eyes.

Precautions:

Avoid inhalation of vapour, contact with eyes and prolonged or repeated contact with skin.

After handling always follow normal good hygiene practices.

Protection:

Use eye protection. Rubber or plastic gloves should be worn where repeated contact occurs and a face mask worn when

working in conned spaces.

First Aid:

Eyes Flush eyes with water for 15 minutes. Seek immediate medical

attention. Skin

Wipe off and wash with soap and water. Inhalation

Remove to fresh air.

Section 15: Health and Safety Information Page 51

Page 52

16 END OF LIFE INFORMATION

GENERAL

Grant oil boilers incorporate components manufactured from a variety of different materials. The majority of these materials can be recycled whilst the smaller remainder cannot.

Materials that cannot be recycled must be disposed of according to local regulations using appropriate waste collection and/or disposal services.

DISASSEMBLY

There is little risk to those involved in the disassembly of this product. Please refer to and follow the Health and Safety Information given in the Installation & Servicing Instructions provided with the boiler. For guidance on the disassembly of the boiler refer to the information given in the Servicing section of the Installation & Servicing

Instructions provided with the boiler.

RECYCLING

Many of the materials used in Grant oil boilers can be recycled, these are listed in the table below:

COMPONENT MATERIAL

Outer casing panels Mild steel (polyester powder coated)

Primary heat exchanger and bafes Mild steel

Secondary heat exchanger Stainless steel Secondary heat exchanger spirals Aluminium alloy Pipework Copper

Burner body/ange Aluminium alloy

Burner oil pump Aluminium alloy/steel Riello oil burner cover Plastic Electrical wiring Copper/plastic Thermostats Copper/plastic Printed Circuit boards Copper/plastic

DISPOSAL

All materials other than those listed above must be disposed of responsibly as general waste.

Neil Sawers Technical Manager

Grant Oil Boiler Fiche V1.9 21/02/2017

Section 16: End of Life InformationPage 52

Page 53

17 PRODUCT FICHE

Product che concerning the

COMMISSION DELEGATED REGULATIONS (EU) No 811/2013 of 18 February 2013 (EU) No 813/2013 of 2 August 2013

Vortex Pro Utility Symbols Unit

12-16

16-21

System 12-16

Condensing boiler Yes Yes Yes Yes

Low temperature boiler No No No No

B1 boiler No No No No

Combination heater No No No No

Rated heat output Prated KW 16 21 16 21

Useful heat output

At rated heat output and high temperature regime

At 30% of rated heat output and low temperature regime

KW 16 21 16 21

KW 4.8 6.3 4.8 6.3

Auxiliary electricity consumption

At full load elmax kW 0.164 0.150 0.164 0.150

At part load elmin kW 0.062 0.07 0.062 0.07

In standby mode P

kW 0 0 0 0

Useful efciency

Seasonal space heating energy efciency ƞs % 90.13 90.52 90.13 90.52

At rated heat output and high temperature regime

At 30% of rated heat output and low temperature regime

% 93.1 90.8 93.1 90.8

% 96.7 96.9 96.7 96.9

Other items

Standby heat loss P

Ignition burner power consumption P

Annual energy consumption Q

Sound power level indoors L

Emissions of nitrogen oxides NO

stby

ign

kW 0.207 0.236 0.207 0.236

kW 0 0 0 0

kWh - - - -

dB 51.2 51.7 51.2 51.7

mg/ kWh <120 <120 <120 <120

Emission class 2 2 2 2

Daily fuel consumption Q

fuel

kWh - - - -

Annual fuel consumption AFC GJ - - - -

System 16-21

Section 17: Product Fiche Page 53

Page 54

18 GUARANTEE

You are now the proud owner of a Grant Vortex condensing boiler from Grant Engineering (UK) Limited which has been designed to give years of reliable, trouble free operation.

Grant Engineering (UK) Limited guarantees the manufacture of the boiler including all electrical and mechanical components for a period of twelve months from the date of installation

, provided that the boiler has been installed in full accordance with the installation and servicing instructions issued.

This will be extended to a total period of two years if the boiler is registered with Grant Engineering (UK) Limited within thirty days of installation and it is serviced at twelve month intervals

. See

main Terms and Conditions below. If the boiler is installed as part of a VortexAir (hybrid) installation,

the guarantee for the boiler will start from its original date of installation and NOT from the date of installation of the heat pump (if installed on different dates).

Registering the product with Grant Engineering (UK) Limited

Please register your Grant Vortex condensing boiler with Grant Engineering UK Limited within thirty days of installation. To do so visit:

www.grantuk.com/support/product-registration You can register your boiler for a further twelve months

guarantee (giving two years from the date of installation

). This

does not affect your statutory rights1.

If a fault or defect occurs within the manufacturer’s guarantee period

If your boiler should fail within the guarantee period, you must contact Grant Engineering (UK) Limited who will arrange for the repair under the terms of the guarantee, providing that the boiler has been correctly installed, commissioned and serviced (if the appliance has been installed for more than twelve months) by a competent person and the fault is not due to tampering, running out of oil, oil contamination, debris, system water contamination, misuse, trapped air or the failure of any external components

not supplied by Grant Engineering (UK) Limited, e.g. re valve,

motorised valve, etc.

This two year guarantee only applies if the boiler is registered with Grant Engineering (UK) Limited within thirty days of installation

and is serviced after twelve months3.

In the rst instance

Contact your installer or commissioning engineer to ensure that the fault does not lie with the system components or any incorrect setting of the system controls that falls outside of the manufacturer’s guarantee otherwise a service charge could result. Grant Engineering (UK) Limited will not be liable for any charges arising from this process.

If a fault covered by the manufacturer’s guarantee is found

Ask your installer to contact Grant Engineering (UK) Limited Service Department on +44 (0)1380 736920 who will arrange for a competent service engineer to rectify the fault.

Remember - before you contact Grant Engineering (UK) Limited

• Ensure the boiler has been installed, commissioned and

serviced by a competent person in accordance with the installation and servicing instructions.

• Ensure there is oil to supply the burner.

• Ensure the problem is not being caused by the heating

system or its controls. Consult the boiler handbook for guidance.

Free of charge repairs

During the two year guarantee period no charge for parts or labour will be made provided that the boiler has been installed and commissioned correctly in accordance with the manufacturer’s installation and servicing instructions, it was registered with Grant Engineering (UK) Limited within thirty days of installation

and, for boilers over twelve months old, details of annual service is available3.

The following documents must be made available to Grant Engineering (UK) Limited on request:

• Proof of purchase

• CD10 Installation Completion Form (or equivalent document)

• CD11 Commissioning Report Form (or equivalent document)

• Service documents (CD11 or equivalent document)

Chargeable repairs

A charge may be made (if necessary following testing of parts) if the breakdown is due to any fault(s) caused by the plumbing or heating system, e.g. contamination of parts due to system contamination, sludge, scale, debris or trapped air. Refer to ‘Extent of manufacturer’s guarantee’.

Extent of manufacturer’s guarantee

The manufacturer’s guarantee does NOT cover the following:

• If the boiler has been installed for over two years.

• If the boiler has not been installed, commissioned, or

serviced by a competent person in accordance with the installation and servicing instructions.

• Instances where the serial number has been removed or

made illegible.

• Fault(s) due to accidental damage, tampering, unauthorised

adjustment, neglect, misuse or operating the boiler contrary to the manufacturer’s installation and servicing instructions.

• Damage due to external causes such as bad weather

conditions (ood, storms, lightning, frost, snow, or ice), re,

explosion, accident or theft.

• Fault(s) due to incorrectly sized expansion vessel(s),

incorrect vessel charge pressure or inadequate expansion on the system.

• Fault(s) caused by external electrics and external

components not supplied by Grant Engineering (UK) Limited.

• Problems caused by lack of oil or faults with the oil storage

and supply system.

• Fault(s) due to contamination of the oil storage and supply

system, e.g. water or debris.

• Bleeding or removing oil storage tank contamination or

blockages from oil lines.

• Problems due to the ue system being incorrectly tted or not

installed to meet installation requirements.

• Boiler servicing, de-scaling or ushing.

• Cleaning out condensate traps/discharge pipes or thawing

out frozen condensate pipework.

• Checking and replenishing system pressure.

• Oil supply pipelines, electrical cables and plugs, external

controls not supplied by Grant Engineering (UK) Limited.

• Heating system components, such as radiators, pipes,

ttings, pumps and valves not supplied by Grant Engineering

(UK) Limited.

• Instances where the oil boiler has been un-installed and re-

installed in another location.

• Use of spare parts not authorised by Grant Engineering (UK)

Limited.

• Consumable items including, but not limited to, oil nozzles, oil

hoses, gaskets and seals.

Section 18: GuaranteePage 54

Page 55

IMPORTANT

The nozzle and braided oil hose supplied with the boiler are only

covered for the period up to the time of the rst service (twelve

months). Both must be changed on the rst service and on every annual service thereafter.

IMPORTANT

A suitable oil lter with a minimum 15µ ltration must be installed in the oil supply line.

Do not wait until the fuel supply runs out before you re-order. Sludge in the bottom of the tank may be drawn into the fuel lines. It is recommended that the boiler is switched off when the new oil supply is delivered and that the fuel is allowed to settle for an hour before restarting the boiler.

Terms of manufacturer’s guarantee

• The Company shall mean Grant Engineering (UK) Limited.

• The boiler must be installed by a competent person and

in full accordance with the relevant Codes of Practice, Regulations and Legislation in force at the time of installation.

• The boiler is guaranteed for two years from the date of

installation

, providing that every twelve months the annual service has been completed3 and the boiler registered with the Company within thirty days of installation. Any work undertaken must be authorised by the Company and carried out by a competent service engineer.

• This guarantee will be invalid if the boiler does not have an

annual (every twelve month) service and will then be limited to twelve months from the date of installation

• The shell (heat exchanger) of the oil boiler is covered by a

ve year parts only guarantee from the date of installation

This is subject to the following:

• The boiler is operated correctly, in accordance with the

Installation and servicing instructions.

• Grant Engineering (UK) Limited strongly recommends

that a Grant Mag-One in-line magnetic lter/s (or

equivalent

) is tted in the heating system pipework. This

should be installed and regularly serviced in accordance

with the lter manufacturer’s instructions. We reserve

the right to ask for proof of installation – failure to provide this may result in the guarantee becoming invalid.

• Proof is provided that the system has been ushed or

chemically cleaned where appropriate (refer to BS 7593) and that the required quantity of a suitable corrosion inhibitor added.

• Proof of annual servicing (including the checking of any

expansion vessels and pressure relief valves) must be provided if and when requested by the Company.

• This guarantee does not cover breakdowns caused by

incorrect installation, neglect, misuse, accident or failure to operate the boiler in accordance with the manufacturer’s installation and servicing instructions.

• The boiler is registered with the Company within thirty days

of installation. Failure to do so does not affect your statutory

rights

• The balance of the guarantee is transferable providing the

installation is serviced prior to the dwelling’s new owners taking up residence. Grant Engineering (UK) Limited must be informed of the new owner’s details.

• The Company will endeavour to provide prompt service in

the unlikely event of a problem occurring, but cannot be held responsible for any consequences of delay however caused.

• This guarantee applies to Grant Engineering (UK) Limited

boilers purchased and installed on the UK mainland, Isle of Wight, Channel Islands and Scottish Isles only

. Provision of in-guarantee cover elsewhere in the UK is subject to agreement with the Company.

• All claims under this guarantee must be made to the

Company prior to any work being undertaken. Invoices for call out/repair work by any third party will not be accepted unless previously authorised by the Company.

• Proof of purchase and date of installation, commissioning

and service documents must be provided on request.

• If a replacement boiler is supplied under the guarantee (due

to a manufacturing fault) the product guarantee continues

from the installation date of the original boiler and not from the installation date of the replacement4.

• The oil boiler must be connected to a mains water supply

(installations utilising a private water supply are not covered by this guarantee).

• Breakdown/failure due to lime scale will not be covered by

this guarantee.

• The replacement of a boiler under this guarantee does not

include any consequential costs, such as the removal or replacement of worktops, kitchen units, etc.

• The boiler (excluding external modules) must not be sited in

a location where it may be subjected to frost.

Hard water advice (for Combi boilers only)

If you live in a hard water area, protection against scaling must be given to the domestic hot water heat exchanger of your combination boiler.

You should t an appropriate scale inhibitor or water softener as

any breakdown caused by water scaling is not covered by the manufacturer’s guarantee. Ask your installer for advice.

Foot notes

1. Your statutory rights entitle you to a one year guarantee period only.

2. The UK mainland consists of England, Scotland and Wales only. Please note that for the purposes of this

denition, Northern Ireland, Isle of Man and Scilly Isles

are not considered part of the UK mainland.

3. We recommend that your oil boiler is serviced every twelve

months (even when the guarantee has expired) to prolong

the lifespan and ensure it is operating safely and efciently.

4. The guarantee period will commence from the date of installation, unless the installation date is more than six months from the date of purchase, in which case the guarantee period will commence six months from the date of purchase.

5. As measured by gauss. The MagOne magnetic lter has a gauss measurement of 12,000.

Version 1.2 – February 2017

Section 18: Guarantee Page 55

Page 56

GRANT ENGINEERING (UK) LIMITED

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

Tel: +44 (0)1380 736920 Fax: +44 (0)1380 736991

Email: [email protected] www.grantuk.com

Grant Vortex Eco VTXWH12/16, Vortex Eco Series, Vortex Eco VTXWH16/21, Vortex Eco VTXSWH12/16, Vortex Eco VTXSWH16/21 Installation And Servicing Instructions

CONTENTS