Britony FlexiFlue
Room Sealed Balanced Flue
MULTI POINT WATER HEATER
GGAASS SSAAFFEETTYY ((IINNSSTTAALLLLAATTIIOONN AANNDD UUSSEE)) RREEGGUULLAATTIIOONNSS..
t is the law that all gas appliances are installed by a competant person
I
in accordance with the above regulations.
Nat G.C. N° 52 980 08
PG G.C. N° 52 980 10
L
from serial number 894216759-04
c
IInnssttaallllaattiioonn
aanndd SSeerrvviicciinngg IInnssttrruuccttiioonnss
((lleeaavvee tthheessee iinnssttrruuccttiioonnss wwiitthh tthhee uusseerr))
The model number and serial number of this heater are on the data badge which is found inside rear
case at lower left hand side.
These numbers should be used when ordering replacement parts.
CCOONNFFOORRMMSS WWIITTHH EEUURROOPPEEAANN SSTTAANNDDAARRDD EENN..2266
c
11.. GGEENNEERRAALL
The Britony FlexiFlue is a room sealed, fanned balanced flue, multipoint water heater. The flue which is
00 mm (4”) diameter pipe, can be directed to the rear or to either side. The maximum recommended flue
1
length is 3 metres for straight application and 1,6 metres total when using a bend.
The appliance is for connection to a mains cold water supply having a minimum working pressure of 1 bar.
A permanent electrical connection is required and should be provided by use of a fused spur. The external
electrical supply should be via a double pole switch having 3 mm. contact separation in both poles. If the
appliance is installed in a bathroom the fused spur must be external to the bathroom.
When on pilot only the fan runs at “low speed” increasing to normal speed when there is a demand for hot
water. Included is a pressure switch, which operates if the fan stalls or if the flues is obstructed and a low temperature sensor which will turn off the fan when the appliance is running on pilot only (fan low speed) in the
event of low air temperatures likely to cause freezing in the appliance.
NNoottee ::
Gas Safety Installation and Use Reg 1984. It is the law that all gas appliances are installed by C.O.R.G.I
registered persons in accordande with the above regulations. Failure to install appliances correctly could lead
to prosecution. It is in your own interest and that of safety to ensure compliance with the law.
11..11 GGuuaarraanntteeee
The guarantee on this appliance is void if it is not installed in accordance with the recommendations made
herein or in a manner approved by the manufacturer.
11..22 DDiimmeennssiioonnss
A
B
C
D
E
F
G
H
K
L
M
N
P
S
T
V
W
X
E
mm
655
395
270
100
40
385
438
775
J
728
53
55
98
70
285
105
199
290
95
870
ins.
25.78
15.5
10.6
4.0
1.6
15.15
17.25
30.45
28.6
2.1
2.15
3.8
2.75
11.22
4.13
7.8
11.4
3.73
34.22
X
cable entry
H
WATER
OUTLET
S
V
J
F
G
P
K
W
T
B
GAS
L
M
WATER
INTLET
D Ø
N
C
A
2
11..33 TTeecchhnniiccaall DDaattaa
eat input nomimal .......................................... 25,2 kW 85966 Btu/h
H
Heat output nominal ......................................... 22,7 kW 77452 Btu/h
Gas rate (maximum) :
. Natural gas (G20) 35,9 MJ/m3- 20 mbar ..... 2,67 m3/h 94,29 ft3/h
with manifold restrictor ................................. 6,1 mm diam.
. Butane (G30) 45,6 MJ/Kg - 28-30 mbar...... 1,99 kg/h
. Propane (G31) 46,4 MJ/Kg - 37 mbar ......... 1,96 kg/h
Main burner injectors :
. G20 .............................................................. 1,28 mm diam.
. G30 - G31..................................................... 0,74 mm diam.
Pilot injector marking G20................................. 26
G30 - G31....................... 15
Water flow rate - raised 50°C (90°F) ................. 3,2 to 6,5 l/min 0,7 to 1,43 gpm
Water flow rate - raised 25°C (45°F) ................. 6,5 to 13 l/min 1,43 to 2,8 gpm
Min. water pr
Min. water pr
Max. water pressure ......................................... 10 bar 150 psi.
Electrical supply ............................................... 240 V - 50 Hz
fused 3 A
essure selector closed .................. 0,5 bar 16,5 ft (7,5 psi)
essure selector open .................... 1,0 bar 33,0 ft (15 psi)
The minimum water pressure is for the correct operation of the appliance only. An additional allowance
must be made for the resistance of pipework and fittings particularly where showers and washing
machines are used. This should be equivalent to 2 m. (6,5 ft) head.
Water inlet (Compression type fittings) .............. Right hand connection 15 mm Copper
Water outlet (Compression type fittings)............ Left hand connection 15 mm Copper
Gas (Compression type fittings) ........................ Centre connection 15 mm Copper
Height (including flue bend) .............................. 778 mm 30,6 in
Width ................................................................ 395 mm 15,5 in
Depth................................................................ 270 mm 10,6 in
.............................................
eight - Car
W
eight - Lift
W
Minimum clearances - top (above flue)
Hole for the air inlet duct .................................. 102 mm diam. 4,2 in. diam.
The Britony FlexiFlue is supplied in one carton.
Compartment ventilation not required.
toned
.......................................................
.............
- bottom (below case) ..... 178 mm 7 in
- sides.............................. 25 mm 1 in
- front .............................. 600 mm 24 in
24,3 kg. 53,6 lbs.
15 kg.
50 mm
33,1 lbs.
2 in
3
22.. IINNSSTTAALLLLAATTIIOONN RREEQQUUIIRREEMMEENNTTSS
22..11 RReellaatteedd DDooccuummeennttss
he installation of the heater must be in accordance
T
with the relevant requirements of the Gas Safety
(Installation and Use) Regulations. Building
Regulations and the current Byelaws of the local
water undertaking. It should be in accordance with
he current British Standard Codes of Practices Local
t
Authority Building standard (Scotland) regulations,
and the safety document 635, the electricity at work
egulation. Detailed recommendations are contained
r
in the following British Standard Codes of Practice :
BS 6400 : BS 5546 : BS 5440 : Pt. 1 : and Pt2 : BS 7671 - BS OM2.
22..22 LLooccaattiioonn
The location chosen for the appliance must permit
the provision of a satisfactory flue termination The
location must also permit adequate space for servicing and air cir
culation around the appliance.
The appliance may be installed in any room or internal space although particular attention is drawn to
the requirements of the current BS 7671 and, in
Scotland, the electrical provisions of the Building
Standards applicable in Scotland, with respect to the
installation of a heater i a room or internal space
containing a bath or shower.
Where a room sealed appliance is installed in a
room containing a bath or shower, any electrical
switch or appliance control, utilising mains electricity should be so situated that is cannot be touched by
a person using the bath or shower.
Where the installation of the appliance will be in an
unusual location special procedures may be necessary and BS 5546 gives detailed guidance on this
aspect.
22..33 GGaass SSuuppppllyy
An adequately sized gas meter must be connected
to the service pipe. Where necessary the local Gas
Region of British Gas will arrange for the existing
meter to be checked or for a suitable meter to be
installed. On no account must any work be carried
out on the gas meter other than by BRITISH GAS or
their specifically authorised contractor.
Installation pipes should be fitted in accor
BS 6891. Pipework from the meter must be of adequate size. Pipes of a smaller size than the gas
connection should not be used. Gas supply pipes in
excess of 3 metres use 22 mm pipe.
The complete installation must be tested for gas
soundness and purged in accordance with BS 6891.
22..44 SSiittiinngg tthhee FFlluuee TTeerrmmiinnaall
The flue must be installed in accor
BS 5440 : Pt. 1.
The following notes are intended to give general guidance.
The standard flue set is suitable for walls having a
thickness of 75 mm (3 in.) to 612,5 mm (24 in.) for
rear outlet fluing or up to 500 mm (19,5 in.) for side
outlet fluing. Other flue options ar
maximum of 3 m (9 ft. 8 in.) to special order
The appliance must be installed so that the flue terminal exposed to exter
nal air
NOT be installed so that the ter
another room space such as an outhouse or lean-to.
It is important that the position of the terminal
allows a free passage of an across it all times.
dance with
e available to a
. The appliance must
minal dischar
dance with
.
ges into
he minimum acceptable spacings from the termi-
T
nal to obstructions and ventilation openings are specified in the following chart. Also see Section 3.4.
TTeerrmmiinnaall ppoossiittiioonns
A Directly below an opening, windows etc
or adjacent to an opening 300 mm
B Below gutters soil pipes or drain pipes 75 mm
C Below eaves 200 mm*
Below balconies or car port roof 200 mm*
D
E From a vertical drain pipe or soil pipe 75 mm
F From an internal or external corner 300 mm*
G Above ground roof or balcony level 300 mm
H From a surface facing the terminal 600 mm
J From an opening in the car port
(e.g. door or window) into dwelling 1200 mm
K Vertically from a terminal on the same
wall 1500 mm
L Horizontally from a terminal on the
same wall
* (107 mm) minimum clearance using kit N° 76216.00 (G.C. 264 833)
NNoottee --
Where the terminal is fitted within 850 mm
s
MMiinn cclleeaarraannccees
(34 in.) of a plastic or painted gutter or 450 mm
(180 in.) of painted eaves an aluminium shield of at
least 750 mm (30 in.) long should be fitted to the
underside of the gutter or painted surface.
Where the lowest part of the terminal is less than 2 m.
(6.5 ft) above the level of any ground, balcony, flat
roof or place to which any person has access and
which adjoins the wall in which the terminal is situated must be protected by a guard of durable material (a terminal guard is available from Quinnel
Barrett & Quinnel. 0171 639.1357 (GC No 381.
782)
The air inlet/products outlet duct and the terminal of
the appliance must not be closer than 25 mm (1 in.)
to any combustible material. Detailed recommenda
tions on the protection of combustible material are
given in BS 5440 Pt. 1.
IIMMPPOORRTTAANNTT NNOOTTIICCEE ::
TIMBER FRAMED
HOUSES. If the appliance is to be fitted in a timber
framed building it should be fitted in accordance
with the British Gas publication «Guide for Gas
Installations in T
imber Framed Housing» reference
DM2. If in doubt advice must be sought from British
Gas.
22..55 WWaallll MMoouunnttiinngg
The appliance should be installed on a flat non-combustible material which not reverberate. What ever
the thickness of the wall a hole 107 mm (4.2 in.) in
diameter will be required for the appliance flue
assembly
used to for
For dimensions are clearances see sections 1.2 and 1.3.
. It is recommended that a core drill be
m this hole.
s
-
4
22..66 FFlluuee TTeerrmmiinnaall AAsssseemmbbllyy
ELECTRIC SUPPLY
FROST
THERMOSTAT
FAN
PRESSURE
SWITCH
MICRO SWITCH
RELAY
RL2
RELAY
RL1
GAS VALVE
THERMOCOUPLE
THERMO
ELECTRIC
VALV E
The flue may be fitted from inside or outside of the
uilding. If fitting from inside the flue duct should be
b
assembled into the air intlet duct and the assembly
assed trough the hole in the wall. The outside dia-
p
meter of the terminal is the same as outside diame-
er of the air inlet duct.
t
he cable should be passed through the gland on
T
the top of appliance and the clamp tightened to
secure the cable. Ensure current carrying conductors
ecome taught before earthing conductor should
b
cable slip from the cord anchorage. Connection to
the appliance should be made in accordance with
iagram (see section 3, 8, 2).
d
22.. 77 AAiirr ssuuppppllyy
The appliance does not require any purpose provided ventilation.
22..88 EElleeccttrriiccaall CCoonnnneeccttiioonnss
The appliances must be earthed.
The installation should be undertaken by a competent electrician and should be in accordance with the
current edition of B.S 7671.
ticular attention should be paid to cross bonding.
Par
The appliance must be provided with a means of
isolation. If installed in a bathroom the means of isolation must be external to the bathroom or a double
pole cord switch fitted.
Acceptable methods of connection are :
1. A switched, double pole fused spur with 3 mm
contact separation on all poles.
2. A double pole switch where the supply must be
suitably fused 3 A.
3. An un-switched socket outlet compling with
BS 1363.
The method of connecting the plug brown wire to
live (L) blue wire to neutral (N) and green/yellow
to earth ( ), see fig. 3.
A three core cable should be used and a heat resisting cable of 0.75 mm
suitable.
2
(24 x 0,2 mm) is considered
22..99 DDeessccrriippttiioonn ooff OOppeerraattiioonn
ead in conjunction with figs 1, 2 and 4).
R
The controls on the Britony FlexiFlue comprise of a
range of thermal, electric and electronic switches.
Broadly, the thermal controls are for the pilot flame
supervision, the electrical controls are functional
switching and the electronic controls act as a security for the functional controls.
cuit is designed so that, under normal condi-
The cir
tions, the fan runs continuously at low speed and
automatically changes to high speed when the gas
valve opens. If, however, the incoming air temperature approaches 0°C the integral frost protection
thermostat interrupts the low fan speed signal.
Under this condition, if ther
water, then the fan recommences at high speed.
There is an in-built delay circuit to prevent the safety devices operating prematurely.
The pilot can only be established under the control
of the thermocouple flame failure circuit after the
mains electricity connection is made since it is
dependent upon the energising of relay-RL1.
If the air flow is not proved on high speed the flame
supervision device will operate by interrupting the thermocouple as a result of the de-energising relay-RL1.
e is a demand for hot
5
FFUUNNCCTTIIOONNAALL FFLLOOWW DDIIAAGGRRAAMM
THERMOSTAT
FAN
MICRO
SWITCH
L
N
D3
D2
D1R1
RL1
Com
C1
Com
Nc
No
R2
RL2
C2
T
C
2A
THERMOELECTRIC
V
ALVE
LOW FLOW
HIGH FLOW
PRESSURE SWITCH
CCIIRRCCUUIITT DDIIAAGGRRAAMM
E
NL
FU
G
V
P
PR
Nc1
No2
Com
YG
BM
TC
W
Bk
O
SW
Br
Bl
R
FAN
Y-G
Bk
O
W
V
G
P
Bl
Br
R
FU Fuse (2 A)
TC Thermocouple
BM Thermo-electric Valve
SW Microswitch
PR Pressure Switch
Y-G Yellow - Green
Br Brown
Bl Blue
R Red
W White
O Orange
Bk Black
V Violet
G Grey
P Pink
L
N
fuse 3A
NB : IF APPLIANCE INSTALLED IN A BATHROOM
SPUR MUST BE EXTERNAL TO ROOM
live
neutral
earth
NB : IF APPLIANCE INSTALLED IN A BATHROOM
SWITCH TO BE OF PULL CORD TYPE
heater
L
N
fuse 3A
live
neutral
earth
heater
double pole
switch
FFiigg.. 11
WWIIRRIINNGG DDIIAAGGRRAAMM EELLEECCTTRRIICCAALL
FFiigg.. 33
6
FFiigg.. 22
CCOONNNNEECCTTIIOONN
L
N
FROST THERMOSTAT
FAN
N
LOW
HIGH
HIGH
L
OW
NO FLOW
WATERFLOW
MICRO-SWITCH
2A
PRESSURE SWITCH
N
RL1
N
RL2
PRINTED CIRCUIT BOARD
THERMOCOUPLE
THERMOELECTRIC
VALV E
OOPPEERRAATTIIOONNAALL DDIIAAGGRRAAMM
FFiigg.. 44
33.. IINNSSTTAALLLLIINNGG TTHHEE AAPPPPLLIIAANNCCEE
A vertical flat area is required for the appliance : 1006 mm high x 445 mm wide (39.6 in x 17.5 in). The surface
on which the appliance is mounted must be of a non combustible material.
33..11 PPaacckkaaggiinngg
The appliance is attached to the wall via the mounting bracket and two bottom screw fixings. The appliance is pac
ked in a single car
11))
APPLIANCE - Assembled with trims.
22))
FLUE ASSEMBLY : a) Air inlet duct complete with terminal.
33))
ACCESSOR
ton. Remove contents fr
Y BOX
- containing :
om car
b) 2nd section flue duct (inside air inlet duct).
c) Flue turr
d) Plastic turret cover.
et with 1st section flue duct fitted.
ton and check against list.
-mounting bracket
- flue locking ring and ‘0’ ring seal
- 2 gaskets
- 4 wall mounting screws
- 4 turret fixing screws
- 2 turret cover fixing screws
- 1 gas control knob
- 1 temperatur
e selector knob
- gas service tap assy (not supplied with LPG models)
- water service tap assy
7
-
33..22 PPrreeppaarriinngg aanndd ffiittttiinngg tthhee aapppplliiaannccee
EM
EM
90 mm
EM DM
PPrreeppaarraattiioonn ::
- Remove the bottom trim by pulling forwards.
- Slide the controls facia plate (P) upwards to disengage from retaining bracket.
Release the front case by removing the four fixing
screws and washers positioned at the top, bottom
and centre of appliance.
- Remove the front case by lifting off the top locating
lugs and pulling forward to clear the water section
at the base of the appliance.
NNOOTTEE ::
A template is not supplied with this appliance.
Particular care is therefore necessary to ensure that
the appliance mounting bracket is fitted level and
positioned accurately. When using extended flues,
a fall fo 5 mm per metre length should be provided. (Fr
om turret to terminal) (see Fig. 5).
- Refer to the drawings opposite for rear and side flue
applications and/or to the dimensions given.
- Set out an drill hole 290 mm (11.4 in) accurately
mark position for bracket.
- Drill and plug the wall.
- Fix bracket to wall using No. 12 screws provided,
ensuring that the bracket is level. If necessary
adjust bracket, finally secure in position.
- Hang the appliance on the bracket, and re-check for
level. Mark bottom fixing holes, removes appliance, drill and plug the wall to suit No 12 screws.
- Re-hang appliance and secure with screws provi-
FFiigg.. 55
33..33 FFlluuee LLeennggtthh
Rear Outlet Wall thickness Up to 612.5 mm Over 612.5 mm
Minimum Wall Thickness 3 in (75 mm)
Flue duct length = wall thickness + 25 mm
Air inlet duct length = wall thic
ded.
Delivered with Extension available
appliance
kness + 25 mm
Pt No. 1008520
Pt No 1008520
FFiigg.. 66
Side Outlet EM Up to 500 mm 1401 mm 2300 mm
+ DM 500 mm to 1400 to 2300 to 2787
xtern. 2 extern. 3 extern.
.
Deliv
3.5 ins
= Wal thickness Flue duct length EM + DM + 130 mm
EM
DM = Distance from w
all to case
With Pt No 2 x 3 x
appliance
Air inlet duct length EM + DM + 130 mm
8
1 e
1008520 1008520 1008520
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