Verine Midas HE Installation, Maintenance & User Instructions
Midas HE
HIGH EFFICIENCY FUEL EFFECT GAS FIRE
Installation, Maintenance & User Instructions
Hand these instructions to the user
Model No’s NSHC**MN, NSHP**MN, NSHC**SN & NSHP**SN are for
use on Natural Gas (G20) at a supply pressure of 20 mbar in G.B. /
I.E.
** denotes trim and fret variant fitted to product
CONTENTS
Section 1 Information and Requirements PAGE
1.0 Appliance Information 3
1.1 Conditions of Installation 4
1.2 Flue and chimney suitability 4
1
.3 Fireplace / surround suitability 5
1.4 Shelf position 5
1.5 Chimney inspection 5
1.6 Fire place opening / catchment space 6-7
1
.7 Fitting to Chair bricks 8
1
.8 Precast Flues 8
1.9 Metal Flue boxes 8
1.10 Hearths 9
1.11 Spillage Monitoring System 9
Section 2 Installation of Fire
2.1 Unpacking the fire 10
2.2 Installing the fire box 10-18
2.3 Gas tightness and inlet pressure (manual control models) 18
2.4 Gas tightness and inlet pressure (slide control models) 19
Section 3 Assembling Fuel Bed and Commissioning
3.1 Fitting the coal fuelbed 20
3.2 Fitting the pebble fuelbed 20
3.3 Fitting the trim 21
3.4 Fitting the fret 21
3.5 Fitting the one piece fascia 22
3.6 Lighting the appliance (manual control models) 22
3.7 Lighting the appliance (slide control models) 23
3.8 Checking for clearance of combustion 24
products
Section 4 Maintenance
4.1 Removal of the burner assembly (manual control models) 25
4.2 Removal of the piezo igniter (manual control models) 25
4.3 Removal of the control tap (manual control models) 26
4.4 Removal of the thermocouple (manual control models) 26
4.5 Removal of the burner assembly (slide control models) 27
4.6 Removal of the battery ignitor (slide control models) 28
4.7 Replacing the battery (slide control models) 28
4.8 Removing the oxy-pilot assembly (slide control models) 28
4.9 Replacing the control cable (slide control models) 29-30
Section 5 User Instructions Section
5.1 Conditions of installation / about your new gas fire 31-32
5.2 Operating the fire (manual control models) 33
5.3 Operating the fire (slide control models) 34-35
5.4 Removal / replacement of the coal fuelbed 36-37
5.5 Removal / replacement of the pebble fuelbed 36-37
5.6 Cleaning the fire 38
This appliance is manufactured by :BFM Europe Ltd.Trentham Lakes,
Stoke-on-Trent, ST4 4TJ
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SECTION 1
INFORMATION AND REQUIREMENTS
1.0 APPLIANCE INFORMATION
Model NSHC**MN / NSHP**MN / NSHC**SN /
NSHP**SN
** denotes trim & fret variant of product
Manual Control Slide Control
Gas Type G20 G20
Main injector (1 off) Size 152 Size 146
Pilot Type Aeromatic Self SIT NG 9055 ODS
Vitiating Burner
Max. Gross Heat Input : 4.0kW 4.0kW
Min. Gross Heat Input : 2.0 kW 2.0 kW
Cold Pressure : 20.0 +/-1.0 mbar 20.0 +/-1.0 mbar
Ignition : Push button piezo 1.5V Battery
Electrode Spark Gap 4.0mm 4.0mm
Packed Weight (All models with fret) 15.5 kg
Packed Weight (All models with Contemporary Trim) 13.5 kg
Fire box Dimensions (with trim fitted)
Width : (with trim fitted) 510mm
Height : (with trim fitted) 625mm
Depth : (from mounting face to rear panel) 125mm
Gas Connection : 8mm Compression (Supplied with fire)
Appliance Efficiency Declaration
The efficiency of this appliance has been measured as specified in
BS 7977-1 : 2002 and the result is 80%.
The gross calorific value of the fuel has been used for this efficiency
calculation.
The test data from which it has been calculated has been certified by GL
Industrial Services UK Ltd. The efficiency value may be used in the UK
Government’s Standard Assessment Procedure (SAP) for energy rating of
dwellings.
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INSTALLATION REQUIREMENTS
1.1 CONDITIONS OF INSTALLATION
It is the law that all gas appliances are installed only by a GAS SAFE Registered
Installer, in accordance with these installation instructions and the Gas Safety
(Installation and Use) Regulations 1998 as amended. Failure to install appliances
correctly could lead to prosecution. It is in your own interest and that of safety to
comply with the law.
The installation must also be in accordance with all relevant parts of the Local and
National Building Regulations where appropriate, the Building Regulations
(Scotland Consolidation) issued by the Scottish Development Department, and all
applicable requirements of the following British Standard Code of Practice.
1. B.S. 5871 Part 2 Installation of Inset Fuel Effect Gas Fires
2. B.S. 6891 Installation of Gas Pipework
3. B.S. 5440 Parts 1 & 2 Installation of Flues and Ventilation
4. B.S. 1251 Open fire place components
5. B.S. 715 Metal flue pipes for gas appliances
6. B.S. 6461 Part 1 Installation of Chimneys and flues
7. B.S. E.N. 1858 Chinmeys Components & Concrete Flue Blocks
8. I.S. 813 : 1996 Domestic Gas Installation (Republic of Ireland)
No purpose made additional ventilation is normally required for this
appliance, when installed in G.B. When Installing in I.E. please consult
document I.S. 813 : 1996 Domestic Gas Installation, which is issued by the
National Standards Authority of Ireland. If installing in Northern Ireland,
please consult local building regulations. Any purpose made ventilation
must be checked periodically to ensure that it is free from obstruction.
1.2 FLUE AND CHIMNEY SUITABILITY
This appliance is designed for use with conventional brick built or lined chimneys
and fabricated flues. It is also suitable for use with pre-cast flue blocks conforming
to B.S. E.N. 1858 and metal flue boxes conforming to BS 715. All flues must
conform to the following minimum dimensions.
Minimum diameter of circular flues 125 mm (Without Flue
Restrictor Fitted)
Minimum effective height of all flue types 3 metres
When fitting to conventional chimneys or 175mm flues it may be desirable to
leave the flue restrictor baffle (supplied) in place to reduce the flue flow and
increase the efficiency of the fire. Safe clearance of products must
always
be checked by carrying out a smoke match test as described.
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1.3 FIREPLACE / SURROUND SUITABILITY
The fire must only be installed on a hearth it must not be installed directly onto
carpet or other combustible floor materials. The fire is suitable for fitting to
non-combustible fire place surrounds and proprietary fire place surrounds with a
temperature rating of at least 150oc. (Class “O”)
If a heating appliance is fitted directly against a wall without the use of a fire
surround or fire place all combustible material must be removed from behind
the trim. Soft wall coverings such as blown vinyl, wall paper etc. could be
affected by the rising hot air and scorching and/or discoloration may result.
Due consideration should be made to this when installing or decorating.
1.4 SHELF POSITION
The fire may be fitted below a combustible shelf providing there is a minimum
distance of 200mm above the top of the fire and the shelf does not project more
than 150mm. If the shelf overhangs more than 150mm the distance between the
fire and the shelf must be increased by 15mm for every 25mm of additional
overhang over 150mm.
1.5 FLUE / CHIMNEY INSPECTION
Before commencing installation, a flue or chimney should be inspected to ensure
that all the following conditions are satisfied.
1. Check that the chimney / flue only serves one fire place and is clear of any
obstruction. Any dampers or register plates must be removed or locked in
the open position.
2. Brick/stone built chimneys or any chimney or flue which has been used for
an appliance burning fuel other than gas must be thoroughly swept. The
base of the chimney / flue must also be thoroughly cleared of debris etc.
3. Any under-floor air supply to the fire place must be completely sealed off.
4. Ensure that the inside of the chimney / flue is in good condition along it’s
length and check that there is no leakage of smoke through the structure
of the chimney during and after the smoke pellet test. With pre-cast flues
it is especially important to check the inside of the flue for extruded
cement / sealant protruding from the joints between the flue
blocks. If present, these should be removed by rodding the flue
before proceeding with the installation.
5. Using a smoke pellet, check that there is an up-draught in the
chimney / flue and that the smoke can be seen issuing from the
terminal / chimney pot outside.
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There must be no leakage of smoke through the structure of
the chimney during or after the smoke pellet test and it is
important to check inside upstairs rooms adjacent to the chimney /
flue. Check the chimney pot / terminal and general condition of the
brickwork or masonry. If the chimney or flue is in poor condition or if
there is no up-draught do not proceed with the installation. If there is a
history of down-draught conditions with the chimney / flue, a tested and
certificated flue terminal or cowl suitable for the relevant flue type should
be considered.
6. A spillage test must always be carried out during commissioning of
the appliance.
1.6 FIRE PLACE OPENING AND CHIMNEY CATCHMENT SPACE
The front opening of the fire place must be between 330 and 440 mm wide, and
between 550 and 575mm high. If the opening exceeds these dimensions then a
surround must be constructed from suitable non-combustible material to produce a
correct size opening. Any surround must be suitably sealed to the fire place to
prevent leakage. See below in fig.1
When installing into a brick built chimney, you must ensure that there is sufficient
depth to accomodate any debris which may fall from the chimney. This depth
must be sufficient to accomodate 12 litres of volumetric space in a conventional
brick built chimney or 2 litres of volumetric space in a pre-cast flue.
Fire Opening
330mm Minimum
440mm Maximum
600mm
Minimum
355mm Minimum
Fig. 1
550mm Minimum
575mm Maximum
Minimum Flat
Sealing Area
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Table A - Installation Depth Requirements for a Verine Midas HE being
installed into a brick built chimney, requiring 12.0 litres of debris collection
volume (fig. 2).
Opening Width (mm) Minimum Depth Required (mm)
330 (minimum opening width) 152
340 149
350 146
360 144
370 142
380 139
390 137
400 135
410 132
420 130
430 127
440 (maximum opening width) 125
For example, if the appliance was to be fitted into a 400mm wide opening, the
depth required would be 135mm. See fig. 2 below for explanatory diagram.
Fig. 2
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Opening Width ( e.g. 400mm)
Depth Required
(e.g. 135mm)
1.7 FITTING TO FIREPLACES WITH EXISTING CHAIRBRICKS AND
CONVENTIONAL BRICKBUILT CHIMNEYS
This appliance is suitable for use in fireplaces fitted with an existing chairbrick
without the need for removal of the chairbrick, providing the minimum depth of the
fireplace exceeds 175mm. If the depth is less than 175mm then the chairbrick
must be removed. The fireplace must be checked to ensure that no part of the
chairbrick is within 50mm of the flue outlet of the fire when installed.
1.8 FITTING TO PRE-CAST FLUE INSTALLATIONS
When installing this appliance into pre-cast flues, always ensure that the
spigot restrictor baffle has been removed. This is held in place on the spigot
by 2 screws
To install the fire box in to pre-cast flue starter blocks, there must be at least
125mm from the mounting face of the fire to the rear of the pre-cast flue
starter block to allow sufficient space for debris collection. If this dimension is
less than 125mm then a fire surround with a deeper rebate to increase the depth
to at least 125mm from the mounting face of the fire. It is important to consider
this depth when choosing a fire surround as the thickness of the fire surround
must be sufficient to give a total depth of at least 125 mm to the rear of the
starter block, otherwise there will be insufficient depth. To increase this depth the
fire surround may be packed away from the wall using suitable non-combustible
board, providing the installation is correctly sealed. If in doubt about the suitability
of the fire contact BFM Europe Ltd. for advice before proceeding.
It is important to ensure that the pre-cast flue is in good condition and is free from
extruded mortar or sealant from between the flue blocks.
This appliance has been tested for use in a pre-cast flue block complying
with BS EN 1858. In accordance with BS EN 1858, pre-cast flues built with
directly plastered faces (front or rear) are not correctly installed as to ensure
proper operation with any type of gas fire. In some instances of this flue
construction, temperature cracking of surface plaster may occur through no
fault of the appliance. An air gap or some form of insulation material should
be installed to prevent normal flue temperatures from damaging wall
surfaces.
1.9 FITTING TO PRE-FABRICATED TWIN WALL METAL FLUE BOXES
The appliance may be fitted to twin wall metal flue boxes conforming to the constructional requirements of BS 715, (for example the Selkirk LFE 125 box). The
box must have a minimum flue diameter of 125mm internal and minimum internal
dimensions of 160mm deep by 580mm high by 350mm wide. The top face of the
box must be insulated with a minimum thickness of 50mm of non-combustible
mineral wool insulation or similar material. The flue box must stand on a
non-combustible base of minimum thickness 12mm.
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1.10 HEARTHS
This appliance must only be installed on to a concrete or non-combustible hearth.
The hearth material must be a minimum thickness of 12mm with the top surface at
least 50mm above the floor. The hearth must be fitted symmetrically about the fire
opening and have a minimum width of 760mm and a minimum projection of
300mm forwards from the fire opening.
1.11 SPILLAGE MONITORING SYSTEM
This appliance is fitted with an atmosphere sensing spillage monitoring system in
the form of an oxygen sensing burner. This is designed to shut the fire off in the
event of a partial or complete blockage of the flue causing a build up of combustion products in the room in which the fire is operated. The following are
important warnings relating to this spillage monitoring system :-
1) The spillage monitoring system must not be adjusted by the installer.
2) The spillage monitoring system must not be put out of operation.
3) When the spillage monitoring system is exchanged only a complete original
manufacturers part may be fitted.
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SECTION 2
INSTALLATION OF FIRE
2.1 UNPACKING THE FIRE
Carefully lift the fire out of the carton. Remove the loose item packaging carefully
from the front of the appliance. Check the contents as listed :-
Packing Check List - Coal Fuelbed Models
1 off Fire box / burner assembly
1 off Boxed ceramic coal effect fuel-bed
1 off Loose items bag.
1 off Trim (3 piece or 1 piece dependent upon model chosen)
1 off Boxed Fret & Ashpan cover (dependent upon model chosen)
1 off Installation / User book (Combined)
Packing Check List - Pebble Fuelbed Models
1 off Fire box / burner assembly
1 off Boxed ceramic pebble effect fuel-bed
1 off Loose items bag
1 off Chrome Effect Trim / Ashpan
1 off Installation / User book (Combined)
2.2 INSTALLING THE FIRE BOX
Establish which type of flue you are intending to install the fire in to :-
225 x 225mm (9 inch x 9 inch) brick built chimneys
175mm (7 inch) diameter lined brick or stone flue, or insulated pre-fabricated
metal flue box to B.S. 715.
When installing into 125mm (5 inch) diameter lined brick or stone flue, or
insulated pre-fabricated metal flue box to B.S. 715 and pre-cast flues the
restrictor baffle must not be fitted.
A spillage test must always be carried out to check satisfactory
clearance of flue products, regardless of the type of flue the
appliance is being fitted to.
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Proceed as follows for all models, (manual control model shown) :-
a) Remove the top glass panel retaining trim which is held in position by 5
off screws as shown below in Fig. 3
b) Remove the left hand glass retaining trim as which is held in position by
3 screws as shown below in Fig. 3
c) Remove the right hand glass retaining trim as which is held in position
by 3 screws as shown below in Fig. 3
d) Remove the burner heat shield which is held in position by 2 screws as
shown below in Fig. 3
Fig. 3
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Left Hand Glass Retaining
Bracket - 3 off screws
Right Hand Glass
Retaining Bracket 3 off screws
Top Glass Panel Retaining
Trim - 5 off screws
Glass Panel
Burner Heat Shield
2 off screws
For all manual control models proceed as follows :-
e) Remove the two screws at the bottom of the control panel. See fig. 4
below. Remove the three screws from the fuel-bed base support as
shown below also in Fig. 4
Fig. 4
f) Lift the burner engine clear as shown in Fig. 5 below
Fig. 5
2 screws
3 off screws
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