VOKERA Option User guide

1
INTRODUCTION
Fig.1 General Layout
1 Flue Analysis Test Point
2 Pressure Tube Negative
3 Fan Assembly
4 Heat Exchanger
5 econdary thermistor
6 Combustion chamber
7 Burner
8 Expansion vessel
9 Water pressure switch
10 Domestic Hot Water Flow witch
11 Gas Valve
12 Mode selector switch
13 Fault indicator led
14 Timeclock
15 Low pressure indicator led
16 Pressure gauge
17 afety valve
18 Pump
19 Auto air vent
20 Electrode
21 High limit thermistor
22 Primary thermistor
23 Air chamber (with cover removed)
24 Air pressure switch
25 Auto by pass (fig. 2)
26 Water flow restrictor (fig. 2)
The Vokèra Option is a combined central heating and
domestic hot water appliance. By design, it incorpo-
rates full sequence electronic ignition, circulating pump,
expansion vessel, safety valve, pressure gauge, and
mechanical timeclock.
The appliance is produced as a room sealed boiler,
suitable for wall mounted applications only. It is pro-
vided with a fan powered flue outlet with an annular co-
axial combustion air intake located on the top rear of the
appliance.
The appliance has been designed for use with a sealed
heating system, consequently it is not intended for use
with an open vented system.
The appliance can be used in conjunction with an ‘Y’ or
‘S’ Plan system when stored hot water via an in-direct
cylinder is required.
An automatic range-rating facility is incorporated in the
boiler,whichautomaticallyadjustsboileroutputtomatch
the current demand.
Domestic hot water is provided directly, via the bi-
thermic heat exchanger
Fig. 1
12
1314
15
2
3
4
5
6
7
8
9
1
10
11
16
17
18
19
20
21
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2
SECTION 1 DESIGN PRINCIPLES AND OPERATING SEQUENCE
Fig. 2
1.1 PRINCIPLE COMPONENTS
●A fully integrated, electronic control board
featuringmodeselectionswitch,fullsequence-
electronic ignition, temperature control sys-
tem, and appliance status indicator.
●A BI-thermal gas to water heat exchanger.
●A multi-functional gas valve.
●Two-stage, primary water pressure switch.
Integral pump, expansion vessel, pressure
relief valve, pressure gauge, domestic water
flowswitch,fan,differentialairpressureswitch,
and time clock.
MODES OF OPERATION
1.2 CENTRAL HEATING MODE
When there is a request for central heating via
the time-clock and/or any external controls, the
pump and fan are started, the fan proves the
differential air pressure switch which in-turn,
allows an ignition sequence to begin.
Ignition is sensed by the electronic circuitry to
ensure flame stability at the burner. Once suc-
cessful ignition has been achieved the appli-
ance operates al 75% of maximum for a fifteen-
minute period, and thereafter the appliance
operates on maximum output until the desired
temperature setting is reached.
Once the desired temperature is reached, the
burner will modulate to maintain that tempera-
ture, however should the temperature within the
appliance continue to rise, the burner will shut
down and the boiler will perform a three-minute
anti-cycle (timer delay).
1.3 HOT WATER MODE
When there is a demand for domestic hot water
the domestic hot water flow switch is proved by
the flow of water through the appliance, this
allows the fan to run, the fan proves the differen-
tial air pressure switch which in-turn, allows an
ignition sequence to begin.
Ignition is sensed by the electronic circuitry to
ensure flame stability at the burner. Once
successfulignition has been achieved the appli-
ancewillmodulateburner gas pressure to main-
tain the desired water temperature, should the
temperature of the domestic hot water exceed
the temperature setting by 5ºC the burner will
shut down until the water temperature drops
below the required setting.
1.4 SAFETY DEVICES
In both central heating and domestic hot water
modes, safe operation is ensured by.
●A water pressure switch that monitors the
system pressure and will deactivate the pump
and prevent burner ignition should the pres-
sure or primary flow rate fall below the rated
tolerance.
●Differential air pressure switch that checks
thecorrectoperationofthefan andfluethereby
preventing or interrupting burner operation.
●A high limit thermostat that overrides the
control circuit to prevent or interrupt burner
ignition.
●A safety valve which releases excess pres-
sure from the primary circuit.
1.5 FROST PROTECTION
The appliance has built-in frost protection that
allows the pump to operate if the appliance
temperature drops to 7ºC, should the tempera-
turecontinue to drop theburner will lightuntil the
primary circuit temperature exceeds 30ºC
Fig. 2
return flow hw
outlet cold inlet
26
5
9
10
25
18
8
22
4
19
17

3
SECTION 2 TECHNICAL DATA
Ref. Condition 15 °C , 1013,25 mbar, dry gas
NOTE: L.P.G. data refer to section 10
2.1 Central heating
Heat input 28.86 kW 98,464 BTU
Heat output (max) 23.65 80,006 BTU
Heat output (min) 9,3 kW 31,700 BTU
Maximum working pressure 3.0 bar
Minimum flow rate 350 l/h
Max temperature 90 °C
Minimum working pressure 0,5 bar
2.2 Domestic hot water
Heat input 28.86 kW 98,464 BTU
Heat output (max) 23.65 80,006 BTU
Heat output (min) 8.1 kW 27,600 BTU
Flow rate (35°C) rise) 9.7 l/min
Maximum inlet pressure 6.0 bar
Minimum inlet pressure to operate 0.15 bar
Minimum flow rate to operate 2 l/min.
2.3 Gas pressure Maximum
Inlet pressure (G20) 20.0 mbar
Max burner pressure 9.8 mbar
Gross rate 2.75 m3/h
Injectors 1.35 mm x 12
2.4 Expansion vessel
Capacity 8 litres
Max system volume 76 litres
Pre-charge pressure 0.8 bar
2.5 Dimensions
Height 750mm
Width 400mm
Depth 328mm
Dry weight 33 kg
2.6 Clearances Rear flue outlet Top flue outlet
Left hand side 50 mm 50 mm
Right hand side 12 mm 12 mm
Top 150 mm 180 mm
Bottom 150 mm 150 mm
Front 600 mm 600 mm
2.7 Connections
Flow & return 22 mm compression
Hot & cold water 15 mm compression
Gas 15 mm compression
Safety valve 15 mm compression
2.8 Electrical
Voltage 230V/~ 50hz
Power consumption 125 W
Internal fuse 2 A
External fuse 3 A
Appliance type C12
Maximum flue length 1 m
Category II2H3P
NOx class 3

4
2.10 PUMP DUTY
Fig. 3 shows the flow rate available – after
allowing for pressure loss through the appliance
– against system pressure loss. When using this
graph apply only the pressure loss of the sys-
tem. The graph is based on a 20ºC temperature
differential.
Fig. 3
Fig. 4
Water pressure (mbar)
Litres Per Hour (x100)
0
100
200
300
400
500
600
12345678910111213
Terminal osition for fan assisted boiler
(minimum distance) mm
A - Directly below an open window or other 300
opening (e.g. air brick)
B - Below gutters, soil pipes or drain pipes 25
C - Below eaves 25
D - Below balconies or car port roof 25
E - From vertical drain pipes and soil pipes 75
F - From internal or external corners 25
G - Above ground or below balcony level 300
H - From a surface facing a terminal 600
I - From a terminal facing a terminal 1200
J - From an opening in the car port (e.g. door
window) into dwelling. 1200
K - Vertically from a terminal on the same wall 1500
L - Horizontally from a terminal on the same wall 300
M - Horizontally from a vertical terminal to a wall 300
N – Horizontally from an o ening, airbrick, o enable
window, etc. 300
NOTE: The flue must be terminated in a place not likely
to cause a nuisance.

5
SECTION 3 GENERAL REQUIREMENTS
BS 5440 PART 1 FLUES
BS 5440 PART 2 FLUES AND VENTILATION
BS 5449 PART 1 FORCED CIRCULATION HOT WATER SYSTEMS
BS5546 INSTALLATION OF GAS HOT WATER SUPPLIES FOR DOMESTIC
PURPOSES (2ND FAMILY GASES)
BS 6798 BOILERS OF RATED INPUT NOT EXCEEDING 60kW
BS 6891 LOW PRESSURE INSTALLATION PIPES
BS 7074 PART 1 APPLICATION, SELECTION, AND INSTALLATION OF EXPANSION
VESSELS AND ANCILLARY EQUIPMENT FOR SEALED WATER SYSTEMS
This appliance must be installed by a competent
person in accordance with the Gas Safety (Installa-
tion And Use) Regulations.
3.1 RELATED DOCUMENTS
The installation of this boiler must be in accord-
ance with the relevant requirements of the Gas
Safety (Installation and Use) Regulations, the
Local Building Regulations, the current I.E.E.
wiring regulations, the bylaws of the local water
undertaking, the Building Standards (Scotland)
Regulation and building standards (Ireland)
regulations.
It should be in accordance also with any rel-
evant requirements of the local authority and
the relevant recommendations of the following
British Standard Codes of Practice.
3.2 LOCATION OF APPLIANCE
The appliance may be installed in any room or
internal space, although particular attention is
drawn to the requirements of the current I.E.E.
wiring regulations, and in Scotland, the electri-
cal provisions of the Building Regulations, with
respect to the installation of the appliance in a
room or internal space containing a bath or
shower.
When an appliance is installed in a room or
internal space containing a bath or shower, the
appliance or any control pertaining to it must not
be within reach of a person using the bath or
shower.
The location chosen for the appliance must
permit the provision of a safe and satisfactory
flue and termination. The location must also
permit an adequate air supply for combustion
purposes and an adequate space for servicing
and air circulation around the appliance.
Where the installation of the appliance will be in
an unusual location special procedures may be
necessary, BS 6798 gives detailed guidance on
this aspect.
A compartment used to enclose the appliance
must be designed and constructed specifically
for this purpose.
An existing compartment/cupboard may be uti-
lised provided that it is modified to suit.
Details of essential features of compartment/
cupboard design including airing cupboard in-
stallations,are given in BS 6798. Thisappliance
is not suitable for external installation.
3.3 GAS SUPPLY
The gas meter – as supplied by the gas
supplier – must be checked to ensure that it is
of adequate size to deal with the maximum
rated input of all the appliances that it serves.
Installation pipes must be fitted in accord-
ance with BS 6891.
Pipe-work from the meter to the appliance
must be of adequate size. Pipes of a smaller
size than the appliance gas inlet connection
must not be used.
The installation must be tested for soundness
in accordance with BS 6891.
If the gas supply serves more than one appli-
ance, it must be ensured that an adequate
supply is maintained to each appliance when
they are in use at the same time.
3.4 FLUE SYSTEM
The terminal should be located where the disper-
sal of combustion products is not impeded and
with due regard for the damage and discoloration
thatmayoccurtobuildingproductslocatednearby.
The terminal must not be located in a place
where it is likely to cause a nuisance (see fig. 4).
In cold and/or humid weather, water vapour may
condense on leaving the flue terminal, the effect
of such pluming must be considered.

6
Fig. 5
3.6.3 DRAIN COCKS
These must be located in accessible positions to
facilitate draining of the appliance and all water
pipes connected to the appliance. The drain cocks
must be manufactured in accordance with BS
2879.
3.6.4 AIR RELEASE POINTS
These must be positioned at the highest points in
the system where air is likely to be trapped. They
should be used to expel trapped air and allow
complete filling of the system.
3.6.5 EXPANSION VESSEL
The appliance has an integral expansion vessel to
accommodatetheincreasedvolumeofwaterwhen
the system is heated. It can accept up to 8 litres of
expansion from within the system, generally for a
modern system this is sufficient, however if the
systemhasanunusuallyhighwatercontent,itmaybe
necessary to add additional expansion capacity (see
6.21).
3.6.6 FILLING POINT
A method for initial filling of the system and replac-
ing water lost during servicing etc. must be pro-
vided. This method of filling must comply with local
water authority regulations. Figure 5 shows a
widely accepted method.
Above a pavement or platform to which people
have access (including balconies or flat roofs) the
terminal must be protected by a guard of durable
material.(AsuitableguardisavailablefromVokera
Ltd. Part no. 018). The guard must be fitted
centrally over the terminal. Refer to BS5440 part
1, where the terminal is less than 1.0 metres
below plastic guttering or 1 metre below painted
eaves.
3.5 AIR SUPPLY
The following notes are intended for general
guidance only.
This appliance is a room sealed, fan-flued boiler,
consequently it does not require a permanent air
vent for combustion air supply.
When installed in a cupboard or compartment,
ventilation for cooling purposes is also not re-
quired.
3.6 WATER CIRCULATION
Detailed recommendations are given in BS 5449
part 1 and BS 6798 . The following notes are for
general guidance only.
3.6.1 PIPEWORK
It is recommended that copper tubing to BS2871
part 1 used in conjunction with soldered capillary
joints is used.
Where possible pipes should have a gradient to
ensure air is carried naturally to air release points
and that water flows naturally to drain cocks.
Except where providing useful heat, pipes should
be insulated to avoid heat loss and in particular to
avoid the possibility of freezing. Particular atten-
tion should be paid to pipes passing through
ventilated areas such as under floors, loft-space,
and void areas.
3.6.2 AUTOMATIC BY-PASS
The appliance has a built-in automatic by-pass,
consequentlythere is no requirement foranexter-
nal by-pass, however the design of the system
should be such that it prevents boiler ‘cycling’.
Fig. 5 A

7
Fig. 6
3.6.7 LOW PRESSURE SEALED SYSTEM
An alternative method of filling the system
would be from an independent make up vessel
or tank mounted in a position at least 1 metre
above the highest point in the system and at
least 5 metres above the boiler. (see fig.5a)
The cold feed from the make-up vessel or tank
must be fitted with an approved non-return
valve and stopcock for isolation purposes. The
feed pipe should be connected to the central
heating return pipe as close to the boiler as
possible.
3.6.8 FREQUENT FILLING
Frequent filling or venting of the system may be
indicative of a leak. Care should be taken
during the installation of the appliance to en-
sure all aspects of the system are capable of
withstanding pressures up to at least 3 bar.
3.7 ELECTRICAL SUPPLY
The appliance is supplied for operation on
230V @ 50Hz electrical supply, it must be
protected with a 3-amp fuse. The method of
connection to the mains electricity supply must
allow for complete isolation from the supply.
The preferred method is by using a fused,
double pole switch with a contact separation of
at least 3mm. The switch must only supply the
appliance and its corresponding controls, i.e.
time clock, room thermostat, etc. Alternatively
an un-switched shuttered socket outlet with a
fused 3-pin plug both complying with BS 1363
is acceptable.
3.8 SHOWERS
If the appliance is intended for use with a
shower, the shower must be thermostatically
controlled and be suitable for use with a com-
bination boiler.
3.9 MOUNTING ONACOMBUSTIBLE SURFACE
If the appliance is to be fitted on a wall of
combustible material, a sheet of fireproof ma-
terial must protect the wall.
3.10 TIMBER FRAMED BUILDING
If the appliance is to be fitted in a timber framed
building, it should be fitted in accordance with
the Institute of Gas Engineers publication (IGE/
UP/7) “Guide for Gas Installations in Timber
Frame Buildings” .
3.11 SCALE REDUCER
Although the appliance has been designed to
reduce the possibility of scaling, it is recom-
mended that in hard water areas (above 18
Clarke degrees), a scale reducer be fitted on
the main supply to the appliance.

8
SECTION 4 INSTALLATION
Fig. 7
4.1 DELIVERY
The appliance is delivered in a heavy-duty card-
board carton. Lay the carton on the floor with the
writing the correct way up.
4.2 CONTENTS
Contained within the carton is.
●The boiler.
●The wall mounting bracket.
●Anaccessories pack containing. servicevalves,
and sealing washers.
●The instructions pack containing. installation &
servicing instructions, appliance logbook, user
instructions,guaranteeregistrationcard, 3amp
fuse and flue restrictor ring.
4.3 UNPACKING
At the top of the carton pull both sides open – do
not use a knife – unfold the rest of the carton from
around the appliance, carefully remove all pro-
tective packaging from the appliance, and lay the
accessories etc. to one side.
4.4 PREPARATION FOR MOUNTING THE
APPLIANCE
The appliance should be mounted on a smooth,
non-combustible, vertical surface, which must be
capable of supporting the full weight of the
appliance. Care should be exercised when
determining the position of the appliance with
respect to hidden obstructions such as pipes,
cables, etc.
When the position of the appliance has been
decided – using the template supplied – carefully
mark the position of the wall bracket (see fig. 7)
and flue-hole (if applicable).
4.4.1 IMPORTANT
There are two holes on the tem late. The
lower hole should be used with the telesco ic
flue kit ( art no. 0225705 & 0225710). The
u er hole is for use with all other horizontal
flue kits.
4.4.2 MAXIMUM FLUE LENGTHS
4.5 FITTING THE FLUE
The top flue outlet permits both horizontal and
vertical flue applications to be considered,
alternatively, the Vokera twin flue system can be
utilised if longer flue runs are required.
4.5.1 CONCENTRIC HORIZONTAL FLUE
(For concentric vertical flue, see 4.5.2)
(For twin flue applications, see 4.5.3)
The appliance flue outlet elbow can be rotated
through 360º on its vertical axis. In addition the
flue may be extended from the outlet elbow in the
horizontal plane (see 4.4.2), however if the flue is
to be extended or additional bends are to be
fitted, the standard horizontal flue kit (part no.
2359029) must be used. A reduction must also
be made to the maximum length (see table)
when additional bends are used.
Bend Reduction in maximum flue
length for each bend
45º bend 0.5 Metre
90º bend 1.0 Metre
Using the template provided (see 4.4.1), mark
and drill a 125mm hole for the passage of the
flue pipe. The hole should have a 1º drop from
the boiler to outside, to eliminate the possibility
of rainwater entering the appliance via the flue.
The fixing holes for the wall-mounting bracket
should now be drilled and plugged, an appropriate
type and quantity of fixing should be used to
ensure that the bracket is mounted securely.
Once the bracket has been secured to the wall,
mount the appliance onto the bracket.
Horizontal flue terminals and accessories
Part No. Description Min-Max Length
0225705 tandard telescopic flue 380mm – 600mm
(Dimension ‘X’)
0225710 Extended telescopic flue 600mm – 920mm
(Dimension ‘X’)
2359029 Horizontal flue kit
For use with add. Bends 833mm
& extensions (dimension ‘X’)
2359069 750mm extension 750mm
2359079 1500mm extension 1500mm
2359049 45º bend (pair) N/A
2359059 90º bend N/A
0225760 Wall bracket (5) N/A
Flue system O tion 24
Concentric Horizontal 4.5m
Concentric Vertical 5.25m
Twin flue 14m/14m
+ terminal
type 1 = centre of rear flue
hole using only
0225705 or
0225710 flue
type 2 = centre of rear flue
hole for all other
flues

9
FITTING THE TELESCOPIC FLUE KIT (0225705
& 0225710)
Carefully measure the distance from the centre of
the appliance flue outlet to the face of the outside
wall (dimension ‘X’ see fig. 8). Add 50mm to
dimension ‘X’ to give the overall flue length
(dimension ‘Y’). Using the complete telescopic
flue assembly adjust the length to suit dimension
‘Y’. Once the telescopic flue terminal has been
adjusted to the correct length, secure the flue
assembly with the screw supplied.
Insert the flue restrictor ring (supplied in the
instruction pack) into the appliance flue gas outlet.
lide the flue assembly into the previously drilled
flue hole and locate the flue bend over the appliance
flue outlet. Push the flue bend down over the
appliance flue outlet and ensure the correct seal is
made. Pull the flue assembly towards and over
the flue bend – using a twisting action – ensuring
the correct seal is made. Check that the terminal
protrudes past the finished outside wall by the
correct length (115mm).
NOTE
You must ensure that the entire flue system is
properly supported and connected.
eal the flue assembly to the wall using cement or
a suitable alternative that will provide satisfactory
weatherproofing. The interior and exterior trim
can now be fitted.
FITTING THE STANDARD (2359029)
HORIZONTAL FLUE KIT (see 4.4.1)
Carefully measure the distance from the centre
of the appliance flue outlet to the face of the
outside wall (dimension ‘X’ see fig. 8A). Ensure
the inner (60mm) pipe is fully inserted into the
outer (100mm) pipe (when the inner pipe is fully
inserted, it stands proud of the outer pipe by
7.5mm). Add 32mm to dimension ‘X’ to give the
overall flue length (dimension ‘Y’). The standard
horizontal flue kit (part no. 2359029) is suitable
for a distance (dimension ‘Y’) of up to 865mm.
NOTE
Dimension ‘Y’ is measured from the end of the
terminal to the end of the outer (100mm) pipe.
Fig. 8
Fig. 8 a
Fig. 8 b
The internal trim should be fitted to the flue pipe
before connection of the 90º bend.
Insert the flue restrictor ring (supplied with
instruction pack) into the appliance flue gas outlet
if the total flue length is less than 1.0 metre.
If the horizontal flue kit (2359029) requires to be
cut to the correct size (dimension ‘Y’), you must
ensure that the inner (60mm) pipe stands proud of
the outer (100mm) pipe by 7.5mm (see fig. 8B).
Ensure any burrs are filed or removed and that
any seals are located properly before assembly.
Connect the inner (60mm) pipe of the terminal
assembly to the push-fit end of the 90º bend
(supplied) using a twisting action. Insert the
assembled flue into the previously drilled hole.
Using the clips & screws supplied, connect the
flue assembly to the boiler, ensuring that the
terminal protrudes past the finished outside wall
by the correct length (135mm).
You must ensure that the entire flue system is
properly supported and connected.
eal the flue assembly to the wall using cement or
a suitable alternative that will provide satisfactory
weatherproofing. The exterior trim can now be
fitted.
EXTENDING THE HORIZONTAL FLUE
If the horizontal flue requires extension/s or additional
bend/s, the standard horizontal flue terminal
(2359029) must be used. Connect the bend –
supplied with the terminal kit – to the top of the boiler
using the clips, screws, & gaskets supplied. The
additional bends & extensions have an internal
push-fit connection, care should be taken to ensure
that the correct seal is made when assembling the
flue system. Connect the required number of flue
extensions or bends (up to the maximum equivalent
flue length) to the flue terminal using the clips,
screws, & gaskets supplied (see fig. 8A & 8B).

10
Fig. 9
NOTE
When cutting the horizontal flue terminal or an
extension to the required length, you must ensure
that the excess is cut from the plain end of the
terminal or extension, and that the inner (60mm)
pipe is 7.5mm longer than outer (100mm) pipe
(see fig. 8A & 8B). Remove any burrs, and check
that any seals are located properly.
You must ensure that the entire flue system is
properly supported and connected.
eal the flue assembly to the wall using cement or
a suitable alternative that will
provide satisfactory weatherproofing. The interior
and exterior trim can now be fitted.
4.5.2 CONCENTRIC VERTICAL FLUE
The vertical flue terminal can be connected directly
to the appliance flue outlet. Alternatively, an
extension or bend can be connected to the
appliance flue outlet if desired (see 4.4.2), however
if additional bends are fitted, a reduction must be
made to the maximum flue length (see table
below).
Reduction for bends
Using the dimensions given in fig. 9 as a reference,
mark and cut a 105mm hole in the ceiling and/or roof.
Fit the appropriate flashing plate to the roof and
insert the vertical flue terminal through the flashing
plate from the outside, ensuring that the collar on
the flue terminal fits over the flashing.
The fixing holes for the wall-mounting bracket
should now be drilled and plugged, an appropriate
type and quantity of fixing should be used to
ensure that the bracket is mounted securely.
Once the bracket has been secured to the wall,
mount the appliance onto the bracket.
IMPORTANT
The vertical flue terminal is 1.0 metre in length
and cannot be cut; therefore it may be necessary
to adjust the height of the appliance to suit or use
a suitable extension.
Insert the flue restrictor ring into the appliance
flue outlet (see fig. 1), if the total flue length –
including the allowance for any additional bends
– does not exceed 1.0 metre.
Connect the vertical flue assembly to the boiler
flue spigot using the 60mm & 100mm clips,
gaskets, & screws (supplied), ensuring the correct
seal is made. The flue support bracket (supplied
with the vertical flue kit) can now be fitted.
If the vertical flue requires extension/s or additional
bend/s, connect the required number of flue
extensions or bends (up to the maximum
equivalent flue length) between the boiler and
vertical flue assembly (see fig. 8B).
NOTE
When cutting an extension to the required length,
you must ensure that the excess is cut from the
plain end of the extension and that the inner
(60mm) pipe is 7.5mm longer than outer (100mm)
pipe (see fig. 8B). Remove any burrs, and check
that any seals are located properly.
You must ensure that the entire flue system is
properly supported and connected.
Bend Reduction in maximum flue length for
each bend
45º bend 0.5 metre
90º bend 1.0 metre
Vertical flue terminal and accessories
Part No. Description Length
2359039 Vertical flue terminal 1.0 metre
0225770 Pitched roof flashing
plate N/A
0225765 Flat roof flashing plate N/A
2359069 750mm extension 750mm
2359079 1500mm extension 1500mm
2359049 45º bend (pair) N/A
2359059 90º bend N/A
0225760 Wall bracket (5) N/A