Yeoman 8455, 8456 User Manual

INSTALLATION, SERVICING
AND USER INSTRUCTIONS

For use in Great Britain and the Republic of Ireland (GB, IE)

These instructions are to be left with the customer and should be read
carefully and kept in a safe place.

They will be necessary when servicing the appliance

IMPORTANT

THIS APPLIANCE MUST ONLY BE OPENED, INSTALLED AND SERVICED BY A CORGI REGISTERED ENGINEER

The Dartmoor

LOG EFFECT GAS STOVE ­BALANCED FLUE

Contents

APPLIANCE COMMISSIONING CHECKLIST 3

GUARANTEE 3

USER INSTRUCTIONS 4

INSTALLATION INSTRUCTIONS 9

Technical Specifications 9

Site Requirements 10

Installation 12

COMMISSIONING 18

SERVICING INSTRUCTIONS 19

Fault Finding 19

How to Replace Parts 21

Basic Spare Parts List 25

Service Records 26

FLUE CHECK PASS FAIL

1. Flue is correct for appliance

2. Flue flow test N/A

3. Spillage test N/A

GAS CHECK

1. Gas soundness & let by test

2. Standing pressure test mb

3. Appliance working pressure (on High Setting) mb

NB All other gas appliances must be operating on full

4. Gas rate m3/h

5. Does ventilation meet appliance requirements

6. Have controls been upgraded (Upgradeable models only) 8455 Standard YES NO

8456 Programmable Thermostatic and Timer YES NO

APPLIANCE COMMISSIONING CHECKLIST

Dealer

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Contact No.

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Date of Purchase. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Model No.

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Serial No.

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Gas Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation Company

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Engineer

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Contact No.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Corgi Reg No.

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Date of Installation

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IMPORTANT NOTICE

Explain the operation of the stove to the end user, hand the completed instructions to them for safe keeping,

as the information will be required when making any guaranteed claims.

DEALER AND INSTALLER INFORMATION

This product is guaranteed for 2 years from the date of installation, as set out in the terms and conditions of sale between Yeoman and
your local Yeoman dealer. This guarantee will be invalid, to the extent permitted by law, if the above Appliance Commissioning
Checklist is not fully completed by the installer and available for inspection by a Yeoman engineer. The guarantee will only be valid
during the second year, to the extent permitted by law, if the annual service recommended in the Instructions for Use has been
completed by a Corgi registered engineer, and a copy of the service visit report is available for inspection by a Yeoman engineer.

USER INSTRUCTIONS

1.1 A competent person must carry out installation and
servicing.

1.2 In all correspondence, please quote the appliance type and
serial number, which can be found on the databadge
located on a tag/chain behind the appliance.

1.3 Ensure that curtains are not positioned above the appliance
and there is at least 300mm between the sides of the
appliance and any curtains.

1.4 If any cracks appear in the glass panel do not use the
appliance until the panel has been replaced.

1.5 This product is guaranteed for 2 years from the date of
installation, as set out in the terms and conditions of sale
between Yeoman and your local Yeoman dealer. Please
consult with your local Yeoman dealer if you have any
questions. In all correspondence always quote the Model
Number and Serial Number.

1.6 Any combustible shelves or surrounding furniture must only
be fitted in accordance with the minimum dimensions
detailed in Diagram 1.

1.7 Contact a competent service engineer to carry out relevant
spillage checks etc. following home improvements carried
out after installation of this stove (e.g. the fitting of double
glazing).

2.1 The controls are at the lower right of the stove:

• the right-hand knob ignites the pilot

• the left-hand knob controls the main burner

2.2 If you have upgraded your stove to operate with remote
control, you must have the pilot lit before you can use the
remote (see Section 4 below)

• Use the following instructions to light the pilot

2. LIGHTING THE STOVE

1

A = 225 mm
B = 150 mm

AR0522

1. GENERAL

Pilot Ignition

• Ensure the left-hand control knob is pointing to off ( )

• Ensure the right-hand control knob is pointing to
off ( )

• Press in the right-hand control knob and rotate it left until a
click is heard

• Keep pressing in and the knob is pointing to pilot ( )
The pilot should now light. If the pilot has not lit, repeat the

procedure until it lights

• Hold the control knob pressed in for 10 seconds and
then release it

The pilot stays lit. If the pilot goes out, repeat the steps.

Regulating the Main Burner

2.3 • Turn the right-hand control to main burner ( ).
The temperature and flame height is now controlled by left-

hand knob

• Turn the left-hand knob to low fire ( ) to light the main
burner. Turn the knob anticlockwise to increase the flame
height and clockwise to decrease the flame height.

THE YELLOW FLAMES APPEAR WHEN THE FIRE HAS
REACHED SUFFICIENT HEAT - TYPICALLY 10 TO 20
MINUTES.

2.4 If the pilot flame is extinguished, intentionally or
unintentionally, do not relight the stove for at least 3
minutes.

3.1 To turn the burner off,

• Turn the left-hand control knob to point to off ( )

The main burner goes out leaving the pilot burning.

3.2

To turn the pilot off:

• Turn the right-hand control knob to point to off ( )

3. TURNING THE STOVE OFF

2

AR0914

967 mm

USER INSTRUCTIONS

4.1

Your stove is fitted with a control valve that can be upgraded
to battery powered Remote Control. This upgrade can be fitted
by anyone capable of simple DIY jobs. Your Yeoman dealer
keeps two versions of the remote:

4.2 STANDARD REMOTE CONTROL (Yeoman PART

NUMBER YM-8455)

This remote controls the gas stove after the pilot has been lit
to:

• Turn on the main burner

• Regulate the flame from low to high and back

• Turn off the burner leaving just the pilot burning

4.3 THERMOSTATIC AND TIMER REMOTE CONTROL

(Yeoman PART NUMBER YM-8456)

This remote controls the gas stove after the pilot has been
lit. In ‘MANUAL MODE’ you can:

• Turn on the main burner

• Regulate the flame from low to high and back

• Turn off the burner leaving just the pilot burning
In ‘AUTO MODE’ you can:

• Set the room temperature so the stove automatically
maintains that temperature

In ‘TIMER MODE’ the stove:

• Turns on and off according to the set time periods

• Automatically regulates the room temperature during the
set periods

NOTE: W

HEN OPERATING THE FIRE INTEMP ORTIMER MODE,THE PILOT

REMAINS LIT AND THE FIRE THEN AUTOMATICALLY SWITCHES ON AT

PROGRAMMED TIMES TO BRING THE ROOM TO THE SET
TEMPERATURE WHETHER OR NOT YOU ARE IN THE ROOM.

NEVER LEAVE ANY COMBUSTIBLE MATERIALS WITHIN 1
METRE OF THE FRONT OF THE APPLIANCE.

WARNING: DO NOT ATTEMPT TO CLEAN THE STOVE
UNTIL IT IS COLD. THE STOVE RETAINS ITS HEAT FOR
A CONSIDERABLE TIME AFTER SHUTDOWN.

NOTE: THE CAST IRON DOOR IS HEAVY, TAKE
EXTREME CARE WHEN HANDLING.

5.1 Single Door
To open the door and access the interior:

• Turn the right-hand rosette 90o, Diagram 3

• Pull the door open

5. CLEANING THE FIRE

4. UPGRADING YOUR STOVE

Double Door

To open the door:

• Turn the knob on the right door to release the catch,
Diagram 4

• Remove the glass frame by undoing the eight screws,
Diagram 5

• Lower the frame down to clear the top edge before
lifting clear, Diagram 6

5

AR1941

4

AR1942

3

AR1941

USER INSTRUCTIONS

• Remove the ceramic fuel bed components and place to
one side

You must protect floor covers and handle the ceramic logs

with care

5.3 The logs should not require cleaning:

• Do not use a vacuum cleaner or brush to clean the logs

• Remove any large debris by hand

• Make sure no debris blocks the burner ports

5.5 See Section 6 to replace the ceramic logs.

5.6 Use a damp cloth to clean the outer casing of the stove.

The fuel effect and side panels in this stove are made from
Refractory Ceramic Fibre (RCF), a material commonly used
for this stove.

Protective clothing is not required when handling these
articles, but we recommend you follow normal hygiene
rules of not smoking, eating or drinking in the work area
and always wash your hands before eating or drinking.

During installation and servicing a HEPA filtered vacuum is
recommended to remove any dust accumulated in and
around the stove before and after working on it to reduce
RCF fibres. On servicing the stove we recommend any
replaced items are not broken up, but are sealed within
heavy duty polythene bags and labelled as RCF waste.

RCF waste is classed as stable, non-reactive hazardous
waste and may be disposed of at a licensed landfill site.

Excessive exposure to these materials may cause temporary
irritation to eyes, skin and respiratory tract; wash hands
thoroughly after handling the material.

• Open the door as set out in Section 5 above

The fuel bed consists of 5 logs and 2 ash panels. The logs
have letters A,B,C,D and E moulded into them for
identification.

6.1 • Take the rear log A

6. FUEL BED ARRANGEMENT

Advice on Handling and disposal of fire ceramics

6

AR1943

• Place it up against the rear of the fire sitting on the two
flat ledges of the burner. The two legs of the log should sit
between the rear burner ports. See Diagram 7

• Ensure there is an equal gap between the sides of the
firebox at each end of the log

6.2 • Place log B on the left-hand side of the burner with the
location bar on its underside slid into the long slot of the
burner

• Make sure the log is as far left as possible, Diagram 8

6.3 • Place log C on the right-hand side of the burner with the
location bar on its underside slid into the long slot of the
burner.

• Make sure the log is as far right as possible, Diagram 9

6.4 • Place log D across from the rear log A to log B on the
left-hand side. There are cut-outs in both logs for location,
Diagram 10

AR1612

9

AR1611

8

AR1610

7

USER INSTRUCTIONS

6.5 There are two ash panels to lie across the front of the
burner.

• Place the panel with the flat edge facing the left side of
the firebox. There are location holes on this log fitting the
screw holes on the burner.

• Place the second ash panel to the right of the first, the
pointed end of this panel fitting the V shape and fitting the
screw holes on the burner.

• Ensure that both logs are horizontal to the burner ports.

6.6 • Place log E across from the rear of log A to log C on the
right-hand side using the shaped cut-outs as location guides.
The front of the log should sit on the front ash panels and
should fit tight to log C, Diagram 13

14

AR1615

12

14

AR1614

11

14

AR1613

10

5.7 • Manoeuvre the frame under the top edge to secure in
place, Diagram 14

• Replace the six screws. Do not overtighten, Diagram 15

6.8 Single Door

• Push the door closed

•

Turn the right-hand rosette until the catch holds the door

firm

Double Door

• Push the door closed

• Turn the knob on the right door until the catch holds the
door closed

NEVER OPERATE THE STOVE WHEN THE DOOR IS
REMOVED OR WHEN THE GLASS IS BROKEN.

AR1941

15

14

AR1943

14

AR1616

13

USER INSTRUCTIONS

This is a safety feature incorporated in all Gazco fires to
automatically switch off the gas supply if the pilot light goes
out and fails to heat the thermocouple.

The surface coating on your Yeoman stove ‘burns off’
during the first 24 hours of operation on high, producing a
harmless and temporary odour. If the odour persists ask
your retailer for advice.

A qualified gas engineer must service the stove every 12
months. In all correspondence, always quote the stove type
and the Serial Number found on the data badge on the
stove.

Any purpose provided ventilation should be checked
periodically to ensure it is free from obstruction.

To assist in any future correspondence, your installer should
have completed the Appliance Commissioning Checklist in
this manual. This records the essential installation details of
this stove. In all correspondence always quote the Model
No. and Serial No.

Parts of this stove become hot during normal use. It is
recommended that a suitable fire guard be used for
protection of young children and the infirm. Indeed, all
parts of the stove should be treated as a ‘working surface’
except for the control area.

12. HOT SURFACES

11. INSTALLATION DETAILS

10. VENTILATION

9. SERVICING

8. 'RUNNING IN'

7. THE FLAME FAILURE DEVICE

INSTALLATION INSTRUCTIONS

TECHNICAL SPECIFICATION

Model

CAT.

Gas Gas

Type

Working

Pressure

Aeration Injector Gas Rate

m3⁄h

Input kW (Gross) Country

High Low

Dartmoor: YM-N9201BFLUC

YM-N9201BFLUCHC

I

2H

Naural Gas G20 20 mbar ø14.5 mm 375 0.611

6.4

Gross

3.2

Gross

GB,IE

Dartmoor: YM-N9201BFLUC

YM-N9201BFLUCHC

I

3+

LPG Propane G31
LPG Butane G30

37 mbar
29 mbar

165

0.166

0.219

6

Gross

3.2

Gross

GB,IE

Wall Thickness

MIN

MAX

200 mm

550mm

Efficiency Class I

Flue Outlet Size ø150 mm, Flue Inlet Size ø100mm

Gas Inlet Connection Size ø8 mm

RESTRICTOR REQUIREMENT

Vertical & Horizontal Flue Specification

Vertical Flue Height From Top of Appliance

500mm up to 1490mm

1500mm up to 3000mm

Horizontal Length
250mm up to 1000mm

250mm up to 5000mm

Restrictor Size

No Restrictor

ø75mm

TOP EXIT - VERTICAL ONLY INCLUDING OFFSET

Vertical Flue Height From Top of Appliance

3000mm up to 4990mm

5000mm up to 10,000mm

Restrictor Size

ø52mm
ø47mm

Packing Checklist

Qty Description

1 Stove

1 Flue Blanking plate

1 Flue In fill plate

1 Log set*

1 Flame Baffle*

1 Front Coal*

1 Fixing kit containing

1 Instruction Manual

2 Wood screws

2 Rawlplugs

1 Box spanner

*Packed in stove

2 x ø12

2 x ø14.5

Rear Exit

Flue