Saunier Duval OPALIS 6 User manual

1
WATER HEATERS
THESE ARE CAT II2H3+ APPLIANCE
01773 828100
IN WARRANTY
TECHNICAL HELPLINE
01773 828400

2
INSTALLATION AND USER INSTRUCTIONS UK
INSTALLATION / MAINTENANCE SECTION
Introduction ............................................................. Page 3
Dimensions ..........................................................................4
Technical data ...............................................................4, 5
Heater schematic ..............................................................6
Installation requirements ...................................................7
Water heater Installation................................................... 8
Commissioning & Lighting - OPALIS 6 .............................. 9
Commissioning & Lighting - OPALIS 5 ............................ 10
Adjustments ......................................................................11
Safety devices ..................................................................12
Servicing / Maintenance - OPALIS 6 ............................. 13
Servicing / Maintenance - OPALIS 5 ............................. 14
Draining .............................................................................15
USER SECTION
Introduction ............................................................. Page 3
Commissioning & Lighting - OPALIS 6 .............................. 9
Commissioning & Lighting - OPALIS 5 ............................ 10
Adjustments ......................................................................11
Draining .............................................................................15
Mandatory warning notice for CEE countries
WARNING, this appliance was designed, approved and inspected to meet the requirements of the English
market.
The identification plate located on the inside of the appliance certifies the origin where the product was
manufactured and the country for which it is intended.
If you see any exception to this rule, please contact your nearest Saunier Duval dealer.
Thank you in advance for your assistance.
OPALIS 5 - OPALIS 6

3
INTRODUCTION
●The OPALIS 6 models have a permanent pilot
and a fixed output of 9,65 kW.
●The OPALIS 5 models have a permanent pilot
and a fixed output of 8,70 kW. They may only be
run for short periods.
The OPALIS 6 models are fitted with a flue safety
device that shuts off the appliance in the event of
a problem with the flue system. It is essential, for
correct operation of this device, that the
appliance is correctly flued in accordance with
the latest issue of BS 5440 Part 1.
The OPALIS 5 models are fitted with an
atmospheric control pilot and a safety
mechanism to prevent operation in the event of a
fault or blockage.
These appliances are available in the following
versions :
- normal pressure without taps,
- normal pressure with taps.
These instructions describe how to install and
useSaunier Duvalappliances. Itis importantto
pay attention to the warnings on the packag-
ing and the casing of the appliances, and
follow the information given in this document.
The water heaters are gas-fired appliances pro-
viding instant hot water.
This appliance is of an atmospheric type, i.e. the
air in the premises in which the water heater is in-
stalled, is used for the burner combustion. It is there-
fore important for the installation to be carried out
in compliance with the current Standards, espe-
cially in terms of the ventilation of the premises.
In situations where the appliance may be used
continuously for more than five minutes at a time,
the appliance must be flued in accordance with
the latest issue of BS 5440 Part 1.

4
DIMENSIONS
Accessories
Various size spouts are available. Please contact
your supplier.
Diagram 1.1
618 x 280 x 180
OPALIS 6
Ø 83
280
618
Des 032
Diagram 1.2
OPALIS 5
280
482
TECHNICAL DATA
Model Input Water inlet Gas Usable gases TYPE
pressure category
OPALIS 5 fixed normal II2H3+ G20 AAS
This appliance is of the II2H3+ Gas Category for use with Natural gas (G 20) only.
This appliance is of the II2H3+ Gas Category for use with Propane (G 30) or Butane (G 31) only.
Model Input Water inlet Gas Usable gases TYPE
pressure category
OPALIS 6 fixed normal II2H3+ G30 - G31 B11BS
Net weight : 8,5 Kg
Gross weight : 9 Kg
482 x 280 x 180
Des 059

5
TECHNICAL DATA
(1)These maximum water pressure values take into account the dilatation of the water.
(2)All values for nominal gas flow rates expressed in m3/hr are given for a gas temperature of 15°C
and an atmospheric pressure of 1013 mbar.
OPALIS 6
Gas connection .................................................................................................................. 15 mm copper tail
Cold water connection ..................................................................................................... 15 mm copper tail
Hot water outlet .................................................................................................................. 12 mm copper tail
Gas connection .................................................................................................................. 15 mm copper tail
Cold water connection ..................................................................................................... 15 mm copper tail
Hot water outlet .................................................................................................................. 12 mm copper tail
OPALIS 5
●Output [P] ....................................................................... kW (29665 Btu/h)
●Efficiency ............................................................................ %
●Minimum flow rate ............................................................................ l/min (0.55 g/min)
●Maximum flow rate ............................................................................ l/min (1.08 g/min)
●Minimum water pressure [pw] .................................................................... bar (7,5 lb/in2)
●Maximum water pressure (1)[pw] .................................................................... bar (150 lb/in2)
●Nominal rated heat input [Q] ...................................................................... kW (39895 Btu/h)
●Temperature rise ............................................................................ °C
●Fresh air flow rate ............................................................................ m3/h
Natural (G20) : Appliance inlet pressure ............................................................ mbar
●Ø Base pilot injector ............................................................................ mm
●Ø Vent pilot injector ............................................................................ mm
●Ø Burner injector ............................................................................ mm
●Ø diaphragm ............................................................................ mm
●Nominal gas flow rate (2)............................................................................ m3
8,7
75
2,5
5
0,5
10
11,7
25
—
20
0,21
0,35
1,20
3,00
1,11
●Output [P] ....................................................................... kW (32905 Btu/h)
●Efficiency ............................................................................ %
●Minimum flow rate ............................................................................ l/min (0.6 g/min)
●Maximum flow rate ............................................................................ l/min (1.3 g/min)
●Minimum water pressure [pw] .................................................................... bar (9 lb/in2)
●Maximum water pressure (1)[pw] .................................................................... bar (150 lb/in2)
●Nominal rated heat input [Q] ...................................................................... kW (42280 Btu/h)
●Temperature rise ............................................................................ °C
●Fresh air flow rate ............................................................................ m3/h
Butane (G30) : Appliance inlet pressure ............................................................ mbar
Propane (G31) : Appliance inlet pressure .......................................................... mbar
●Ø pilot injector ............................................................................ mm
●Ø Burner injector ............................................................................ mm
●Ø diaphragm ............................................................................ mm
●Nominal gas flow rate ............................................................................ kg/h
9,65
78
2,7
6
0,6
10
12,4
25
24
28/30
37
0,18
0,70
8,00
0,88

6
HEATER SCHEMATIC
SCHEMATIC DIAGRAM
Diagram 2.1
OPALIS 6
A1 .................... draught diverter
A3 .................... heat exchanger
A4 .................... burner
B ....................... gas mechanism
C ...................... water mechanism
E1 ..................... thermocouple
E2 ..................... flue safety device
1 ..................... pilot
2 ..................... user control
3 ..................... flame supervision device
4 ..................... temperature selector
Shy 094a
Diagram 2.2
OPALIS 5
A2 .................... deflector
A3 .................... heat exchanger
A4 .................... burner
B ....................... gas mechanism
C ...................... water mechanism
E1 ..................... thermocouple
E3 ..................... atmosphericcontrolsafetydevice
E4 ..................... safety device sensor
1 ..................... pilot
2 ..................... user control
3 ..................... flame supervision device
4 ..................... temperature selector
Shy 047
A2
A4
B
C
A3
E4
2
3
4
E1
1
E3
A3
A4
C
2
3
4
E1
A1
B
1
E2

7
INSTALLATION REQUIREMENTS
This appliance must be installed in accordance
with the latest issue of the following :
BS 5440 : Part 1 flues. Flues and air supply for gas
appliances of rated input not exceeding 60 kW.
BS 5440 : Part 2 air supply. Flues and air supply for
gasappliancesofratedinputnotexceeding60 kW.
BS 5546 : Installation of gas hot water supplies for
domestic purposes.
BS 5482 : Code of pratice for domestic butane and
propane gas burning installations.
Building regulations. The bylaws of the local water
undertaking. The Gas Safety Regulations : it is the
law that all gas appliances are installed by com-
petent persons in accordance 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 the law is complied
with.
It is essential that the appliance is used in a well
ventilated room, NOT in a confined space (i.e.
shower cubicle).
The appliances comply with Standard EN 26 (ba-
sic appliances).
Specific conditions for the Opalis 5
Under no circumstances must a flueless water
heater be installed in a bathroom, shower room,
bedroom, living room or any other such room by
a permanent opening except any opening pro-
vided for air admission.
A free space of 0,60 metre or more must be
left above stand alone appliances.

8
WATER HEATER INSTALLATION
LOCATION
●Avoid installing the appliance in a room in which
the air is corrosive or dusty.
●Avoid installing the appliance in close proximity
to a cooking appliance.
●Therecommendedheighttoinstalltheappliance
is 1.5 m (59 in) from the viewing window to the
ground.
●Space required for maintenance :
- each side = 50 mm (2 in)
- base = 150 mm (6 in).
●The appliance must be installed with a minimum
dimension of 20 mm (3/4 in) from the rear of the
appliance to the mounting surface.
INSTALLATION
●Flush out service pipes to remove any foreign
material before connecting to the 15 mm water
inlet elbow on the wall plate.
●Mark the position of the hook which supports the
top of the heater, see diagram 3.
●Temporarily attach the heater to the wall fixing
plate and measure the distance between the wall
and the back of the heater. This will indicate the
lenght of hook required.
●Remove the heater. Drill a 6.5 mm hole in the
wall and insert the wall plug, supplied.
●Screw home the hook and leave it protruding
the correct distance to keep the heater vertical.
●Mount the heater onto the hook and connect
the gas and water unions at the wall fixing plate
using the two washers supplied.
●Tighten up all fittings.
●For installation with a spout - attach the swivel
spout to the spout outlet.
●For multipoint installation - remove the nut and
blanking plate from the multipoint outlet, see
diagram 4.
●Fit the 12 mm copper multipoint outlet
connector and washer.
●Connect the pipe to the remote draw off taps.
Diagram 3
310
4535
GAZ
E.C.
E.F.
crochet de
fixation
Position
of support hook
Gas inlet
Water inlet
Car 021
Diagram 4
Mec 101
Gas pressure test point
Multipoint outlet

9
COMMISSIONING & LIGHTING - OPALIS 6
Diagram 5
Commissionning
●With the front casing removed, fit the
temperature selector knob where applicable.
●Ontap models,fit the hottap handle (red)to the
left hand spindle and the cold tap handle (blue) to
the right hand spindle.
●Open all remote hot taps and on tap models
open the hot tap on the front of the heater.
●Open the water service cock.
●When all the air has been removed from the
system,close thetapsand check alljoints for water
soundness.
1
4
6
2
3
5
D
Des 034
OPALIS 6
Description
1-Pilot tube
2-Control knob
3-Temperature selector
4-Pilot tube clip
5-Drain plug
6-Pilot injector
D-Piezo unit
Lighting
●Turn the control knob anti-clockwise as far as it
will go, the red flame (a) will line up with the mark
(b) on the casing, see diagram 6.1.
● Fully depress and then release centre button
(c), the button will remain semi-depressed, see
diagram 6.2.
●Press piezo igniter button (D) see diagram 5. It
may be necessary to wait a few moments for the
gas to reach the pilot.
●Wait 15 seconds and then fully depress and
release the centre button (c) of the control knob,
see diagram 6.3.
●If the pilot flame should go out, wait 60 seconds
and repeat lighting sequence.
Mec 037aMec 037a
●The heater is now ready for operation when
a hot tap is opened.
●Toturnofftheheater, turn control knob clockwise
as far as it will go, the white mark (d) will line up with
the mark (b) on front panel, see diagram 6.4.
NB : To turn off the heater while button (c) is in pilot
position, see diagram 6.2, press a second time, see
diagram 6.3, and turn knob fully clockwise.
Mec 037a
b
a
c
c
Diagram 6.1
b
d
Diagram 6.4
Diagram 6.2
Diagram 6.3
Mec 037a

10
COMMISSIONING & LIGHTING - OPALIS 5
Diagram 7
Commissionning
●With the front casing removed, fit the tempera-
ture selector knob where applicable.
●Ontap models,fit the hottap handle (red)to the
left hand spindle and the cold tap handle (blue) to
the right hand spindle.
●Open all remote hot taps and, on tap models,
open the hot tap on the front of the heater.
●Open the water service cock.
●When all the air has been removed from the
system,close thetapsand check alljoints for water
soundness.
Lighting
For your convenience, this appliance has been
fitted with a rapid-vent starter pilot. This will prevent
having to press the button for a long time at start-
up or after long stoppage.
● Turn control lever (2 diagram7) to align red flame
(a) with mark (b) on front panel (diagram 8.1).
OPALIS 5
5
32
4
6
D
1
Des 060
Description
1-Pilot tube
2-Control knob
3-Temperature selector
4-Drain plug
5-Base pilot injector (not visible)
6-Vent pilot injector
D-Piezo unit
Mec 041a
b
a
Diagram 8.1
Diagram 8.2
Mec 041a
c
●Push button (c)(diagram 8.2) right down and
hold ; air contained in the pipes is discharged by
vent pilot. The gas cannot reach the burner.
●Push piezo-unit button (Ddiagram7), and starter
pilot ignites followed by safety pilot.
●Wait approximately 15 seconds for the thermo-
couple to heat up, then release button (c) to
return ; appliance is then ready for operation.
●To turn off the appliance, turn control lever to
align white circle (d) with mark (b) on front panel
(diagram 8.3).
Diagram 8.3
Mec 041a
b
d

11
ADJUSTMENTS
Diagram 9
It is not possible to adjust the gas input, this has
been pre-set during manufacture.
Check the burner pressure by fitting a suitable
gauge onto the pressure test point situated on the
bottom left hand side of the burner injector bar,
see diagram 9.
OPALIS 6 : LPG
The correct burner pressure is between 32,5 mbar
and 40 mbar (13" WG and 16" WG) for propane
and 25,5 mbar and 31 mbar (10,2" WG and
12,4" WG)for butane.If the burnerpressure is within
these values the heat input will be correct. If the
pressure is not correct, check the inlet gas pressure
at the test point on the left hand side of the gas
section, see diagram 4, refer to "TECHNICAL DATA"
for the correct inlet pressure.
OPALIS 5 : NATURAL GAS
The correct burner pressure is between 8,5 mbar
and 10,5 mbar (3,4" WG and 4,2" WG) for natural
gas . If the burner pressure is within these values the
heat input will be correct. If the pressure is not
correct, check the inlet gas pressure at the test
point on the left hand side of the gas section, see
diagram 4, refer to "TECHNICAL DATA" for the
correct inlet pressure.
Slow ignition
The servo gas device ensures automatic
adjustment of slow ignition.
Hot water temperature adjustment
These appliances are fitted with a temperature
selector (4 diagram 9) acting directly on the water
flow rate.
By turning this selector :
— in the direction "+", the temperature increases
and the flow rate decreases;
— in the direction "-", the temperature decreases
and the flow rate increases.
The flow rate of the hot water is adjustable :
— for the OPALIS 6 : between 2.7 l/mn with an
increase of 50 °C and 6 l/ mn with an increase of
25 °C.
— for the OPALIS 5 : between 2.5 l/mn with an
increase of 50 °C and 5 l/ mn with an increase of
25 °C.
In all cases, always turn the hot water tap full on, in
order to allow the temperature selector to adjust
the water flow rate automatically, maintaining the
temperature selected constant.
Important : to prevent premature scaling of the
heat exchanger in your appliance, avoid leaving
the selector (4 diagram 9) in the minimum flow-
maximum temperature position, when the use of
very hot water is not required.
A
B
Des 069
Des 060 Des 034
A
B
4
4
A-Burner pressure test point
B-Servo gas device
4-Temperature selector
OPALIS 5
OPALIS 6

12
SAFETY DEVICES
IMPORTANT : It is forbidden to bypass or tamper
with any of the safety devices. If, after attempting
to use the heater, a safety shut-down condition
occurs, this must be rectified immediately by a
qualified, competent person.
OPALIS 6 MODELS
The heater is fitted with a flue safety device. In the
event of total or partial obstruction of the flue
systemordetrimentaldowndraughtintotheheater,
the safety device will shut off the heater requiring
a manual re-start. Restarting the heater must only
be carried out after waiting 15 minutes. Repeated
safety shutdown must be dealt with by a qualified,
competent person.
OPALIS 5 MODELS
Safety pilot atmospheric control
When the ambient atmosphere reaches a critical
vitiation threshold, the pilot is extinguished. The
thermocouple cools very rapidly thereby causing
thedisconnection oftheappliance, thereby auto-
matically cutting off the gas supply to the
appliance.
Heat exchanger - Blockage safety device
Thisdevice consistsof a tubefixed onto theleft side
of the combustion chamber. The other end rests
on a cradle integral with the stirrup fixed on the
burner bracket.
If the heat exchanger becomes blocked, the path
offered to the flue gases between the fins
decreases, and a stagnation of the combustion
products in the combustion chamber occurs, the
former tending to leak increasingly towards the
bottom of this chamber.
Thetubepermitsrecycling of the combustionprod-
ucts discharged at the level of the pilot. The
recycling flow rate of these products towards the
pilot increases as the heat exchanger becomes
morerestrictive.Whenitreachesacriticalthreshold,
itextinguishes thepilot leading toan interruption of
the gas supply to the burner.
After a service call, the technician must check the
blockage safety device is in working order :
●Dismantle the deflector and place the test-
mesh bottom plate at the top of the heat
exchanger
●Ignite the pilot and leave the pilot to operate
for a minimum of 2 minutes
●start the appliance and check that the com-
plete extinction of the appliance takes place in a
time less than or equal to 40 seconds
●replace the test mesh bottom plate with the
deflector.

13
SERVICING / MAINTENANCE - OPALIS 6
Diagram 10
1
3
4
2
Des 034
To ensure the continued efficient and safe
operationofthewaterheater,itisrecommended
that it is checked and serviced annually.
1-Pilot tube
2-Temperature selector
3-Pilot tube clip
4-Pilot injector
Heat exchanger descaling
If the heater is installed in a hard water area and
a drop in water flow rate is noticed and/or noise
occurs, the heat exchanger may need descaling.
Proceed as follows :
●shut off water supply
●remove heat exchanger and fill with a 15 %
inhibited acid solution
●leave to act for 10 to 15 minutes then rinse
thoroughly
●If necessary, repeat operation.
Cleaning of pilot
●Unclip the pilot tube (1)
●Clean pilot tube by blowing through
●Clean pilot injector by brushing lightly
●If necessary, remove pilot injector and blow
through
●Refit parts in reverse order to removal.

14
SERVICING / MAINTENANCE - OPALIS 5
●lift pilot until pilot tube (1) slips out of brass tube
(9), then pull forward away from heater until scoop
support stirrup is free
●brush interior of scoop with soft brush
●clean upper pilot injector (4) by immersing ex-
tremity of scoop in 15 % acetic acid solution
●clean lower part of tube by blowing through
●unscrew brass tube (9) and blow through up-
per part
●clean lower pilot injector (3) by brushing lightly
and blowing through
●refit parts in reverse order to removal.
Cleaning of blockage safety device
The tube and its cradle having been taken out
(see dismantling procedure in "Cleaning of pilot"
paragraph), check that there is no obstruction in
Ø 8 hole in element pipe.
NB : the making safe of the appliance by the
blockage safety device involves cleaning or re-
placing the element.
Diagram 11
6
5
4
1
3
2
9
7
8
Heat exchanger descaling
If the heater is installed in a hard water area and
a drop in water flow rate is noticed and/or noise
occurs, the heat exchanger may need descaling.
Proceed as follows :
●shut off water supply
●remove heat exchanger and fill with a 15 % in-
hibited acid solution
●leave to act for 10 to 15 minutes then rinse thor-
oughly
●If necessary, repeat operation.
Cleaning of pilot
An obstruction, even partial, of the pilot is identifi-
able by a change in the appearance of the small
flame visible at the top of the pilot tube.
During normal functioning, this flame has the ap-
pearance of a very steady, small blue cone ; when
the pilot is fouled, this flame becomes feebler or
takes on a yellow colour.
To clean the pilot (1) :
●turn off appliance
●pull back selector control lever (2) and unscrew
plastic nut
●unscrew, but do not remove, screw (5) securing
blockage safety tube (6)
●separate tube (6) from heat exchanger and
remove from cradle, rotating from the back to the
front
●remove screw (5) and thermocouple nut. Re-
move thermocouple
●remove pilot earth screw (8)
To ensure the continued efficient and safe
operationofthewaterheater,itisrecommended
that it is checked and serviced annually.
1-Pilot tube
2-Temperature selector
3-Pilot injector
4-Upper pilot injector
5-Fastening tube/burner support screw
6-Blockage safety tube
7-Thermocouple solenoid
8-Pilot earth screw
9-Brass tube mechanism/pilot connection
Des 060

15
Ever anxious to improve the quality of its appliances, the Saunier Duval/ hot water/ heater company reserves the right to modify the latter without prior notice.
The technical information contained in our documents are given for guidance only and are without liability.
DRAINING
If there is a risk of frost it is essential to drain the
heater :
●Shut off gas supply
●Shut off water supply
●open hot-water cocks
●remove drain screw under water mechanism.

16 104560 B 07/96