Sime BRAVA DGT HE 25 User manual

BRAVA DGT HE
25 - 30 - 35
199838
USER INSTRUCTIONS
ENSURE THAT THESE
INSTRUCTIONS ARE LEFT
FOR THE USER AFTER
COMPLETION OF THE
BENCHMARK SECTION
PLEASE READ THE
IMPORTANT NOTICE
WITHIN THIS GUIDE
REGARDING YOUR BOILER
WARRANTY
UK
Cod. 6316190 - 03/2013

All descriptions and illustrations provided in this manual have been carefully prepared but we reserve the right to make changes
and improvements in our products that may affect the accuracy of the information contained in this manual.
IMPORTANT NOTICE
For the first year all of our appliances are protected by our manufacturer’s guarantee which covers both parts and
labour.
As you would expect from Sime Ltd, it is our aim to provide our valued customers with the best in after sales and
service.
To take advantage of any extended warranty offered, all you have to do is to adhere to these 3 simple conditions:
• The installation must be carried out to Manufacturers/Benchmark Standards by a Gas Safe Registered
Engineer, and recorded in the installation manual.
• The appliance must be registered with both Sime Ltd and Gas Safe within 30 days of installation.
• The appliance must be serviced annually, by either Sime Ltd or a Gas Safe registered engineer- ensuring that the
Benchmark service record in the installation manual is completed.
Failure to comply with the above will result in only the 12 month warranty being offered.
In the absence of any proof of purchase, the 12 month warranty period will commence from the date of manufacture
of the boiler as shown on the appliance data plate.

The Benchmark Scheme
Sime Ltd is a licensed member of the Benchmark Scheme which aims to improve the standards of installation and
commissioning of domestic heating and hot water systems in the UK and to encourage regular servicing to optimi-
se safety, efficiency and performance.
Benchmark is managed and promoted by the Heating and Hotwater Industry Council.
For more information visit www.centralheating.co.uk
Please ensure that the installer has fully completed the Benchmark Checklist in the use and maintenance section
of the installation instructions supplied with the product and that you have signed it to say that you have received a
full and clear explanation of its operation.
The installer is legally required to complete a commissioning checklist as a means of complyng with the appropria-
te Building Regulations (England and Wales).
All installations must be notified to Local Area Building Control either directly or through a Competent Persons
Scheme.
A Building Regulations Compliance Certificate will then be issued to the customer who should, on receipt, write the
Notification Number on the Benchmark Checklist.
This product should be serviced regularly to optimise its safety, efficiency and performance.
The service engineer should complete the relevant Service Record on the Benchmark Checklist after each service.
The Benchmark Checklist may be required in the event of any warranty work and as supporting documentation
relating to home improvements in the optional documents section of the Home Information Pack.

OPERATING INSTRUCTIONS FOR THE USER
1.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 APPLIANCE OPERATION
1.3 OPERATING INSTRUCTIONS
1.4 ERRORS AND SOLUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.5 MINIMUM CLEARANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.6 ROUTINE SERVICING
1.7 ELECTRICAL SUPPLY
1.8 VENTILATION
1.9 CLEANING
1.10 SAFETY
1.11 INSTRUCTIONS FOR OPTIONAL TIMER
SIME PART NUMBER 7102604 / BCG NUMBER 138493 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
1.12 INSTRUCTIONS FOR PROGRAMMING CLOCK
CONTENTS
VERY IMPORTANT!
All Gas Safe Registered installers carry a ID card.
You can confirm that your installer is registered by calling
Gas Safe Register on 0800 408 5577.
Please ensure that your installer has completed the Gas Boiler System
Commissioning Checklist in the installation guide.
It is a requirement of the warranty that your installer registers your
boiler installation with GAS SAFE REGISTER.
This should be no later than 30 days after installation.
You will receive a Buildings Regulations Compliance Certificate
(in Scotland a Declaration of Safety).
The certificate number must be recorded on the checklist.
It is also a condition of any extended warranty that the boiler is serviced
annually, and this is recorded in the Service Record.
Brava DGT HE 25: Gas Council number 47-283-38
Brava DGT HE 30: Gas Council number 47-283-39
Brava DGT HE 35: Gas Council number 47-283-40
These appliances comply with the S.E.D.B.U.K. scheme, band “A”

6
OPERATING INSTRUCTIONS FOR THE USER
THE GAS SAFETY (INSTALLATION AND
USE) REGULATIONS 1996. It is the law
that all gas appliances are installed by
a registered person, in accordance
with the above regulations. Failure to
install appliances correctly could lead
to prosecution. It is in your own inter-
est, and that of safety, to ensure that
the law is complied with.
It is essential that the appliance is
correctly earthed. An electricity sup-
ply of 240 V - 50 Hz fused at 3 A is
required.
Read these instructions carefully before
attempting to operate the appliance.
1.1 INTRODUCTION
The Sime BRAVA DGT HE family is a
fully automatic, wall mounted, room
sealed, fan assisted range of combina-
tion boilers.
When operating in winter mode, the
appliance provides central heating as
required and produces instantaneous
hot water upon demand.
When operating in summer mode, the
central heating is not operational how-
ever the appliance continues to supply
hot water whenever it is required.
1.2 APPLIANCE OPERATION
A demand of hot water will be sensed
by the appliance detecting water flow
(providing that the flow rate is above 2
l/m - 0.5 gal/min).
The fan will start and the burner will
light at full output. If the draw off rate
is near the maximum design flow rate
the appliance will run continuously at
full output until a tap is either turned
off or the flow rate is reduced in which
case the heat output will reduce
accordingly to maintain a steady tem-
perature.
Hot water is made available almost
immediately at the appliance outlet,
but the final temperature and time
taken for the hot water to reach a tap
depends upon the potentiometer set-
ting, the rate at which water is drawn
off, and the length of the pipe between
the boiler and the tap.
When the tap is turned off, the appli-
ance will revert to C.H. mode (if set on
winter position) otherwise the burner
will be extinguished pending the next
demand for hot water.
1.3 OPERATING INSTRUCTIONS
1.3.1 Boiler ignition (fig. 1)
The first ignition of the boiler must be
carried out by qualified technical per-
sonnel.
When it is necessary to restart the
boiler follow this procedure:
–
ensure that the gas supply is tur-
ned on.
– turn on the electrical supply, a green
LED should illuminate. After a delay
of 30 seconds the boiler should
resume operation; if the green led is
on, this indicates the presence of
voltage.
N.B.: After a delay of 15 minutes
(PAR 5 default setting) if non of the
buttons are pressed the keypad will
"lockup" to resume operation, press
any of the keys for more than two
seconds (the display will indicate one
to four segments progressively befo-
re unlocking the controls).
Winter
Press the key of the controls to
activate the winter mode functioning
(heating and D.H.W.). The display will
be as shown in the figure.
Summer
Press the key of the controls to
activate the summer mode functioning
(only the production D.H.W.). The
display will be as shown in the figure.
1.3.2 Regulation
C.H. temperature (fig. 2)
To set the temperature of the water
for heating, press the key of the con-
trols . The display will be as shown in
the figure. Change the values with the
Fig. 1
ATTENTION: Use the keys to alter the value of any function, a beep indicates that the change was
accepted. The display will remain lit for 15 minutes (PAR 5 default).

7
key ( and ). Standard display will
return by pressing the key again, or
after 60 seconds if no key is pressed.
With a system water return tempera-
ture of less than 55 degrees, conden-
sate will be produced, and the effi-
ciency increased.
1.3.3 Regulation
of the external sensor
If an external sensor is installed, the
value of the output temperature is
automatically chosen by the system,
which quickly adjusts the of flow tem-
perature on the basis of the external
temperature.
If you wish to change the value of the
temperature, increasing or decrea-
sing that calculated automatically by
the electronic card, proceed as indica-
ted in 1.3.2. The level of various cor-
rection of a value of temperature pro-
portional calculated. The display will be
as shown.
1.3.4 Regulation D.H.W.
temperature (fig. 3)
To set the desired temperature
D.H.W., press the key of the con-
trols. The display will be as shown in
the figure. Change the values with the
key ( and ).
The standard display will return by
pressing the key again, or after 10
seconds if no key is pressed.
1.3.5 To switch off the
boiler (fig. 1)
In the case of a short absence, press
for more than two seconds the key
of the controls. The display will be as
shown in figure (boiler in stand-by). In
this way, leaving the electricity and the
gas supply connected, the boiler is
protected from frost and from the
pump becoming jammed.
If the boiler is not used for a prolonged
period, it is advisable to disconnect the
electricity supply, by switching off the
main switch of the system, and to
close the gas tap and, if low tempera-
tures are expected, to completely
drain the hydraulic circuits to avoid
pipes being damaged from frost.
1.4 ERRORS AND SOLUTIONS
When there is a functioning error, the
display controls shows a red LED.
Descriptions of the errors with the relati-
ve alarms and solutions are given below:
–AL 02 (fig. 5)
If the water pressure detected is
lower than 0.5 bar, the boiler will
stop and the display will show “AL
02”. Using the external filling device,
bring the system pressure back to
normal so that the pressure indica-
ted by the hydrometer(fig 5) is
between 1 and 1.5 bar.
WHEN FILLING HAS BEEN COMPLE-
TED CLOSE THE CONNECTIONS OF
THE FILLING LOOP AND DISCON-
NECT IT.
If it necessary to repeat the system
refilling procedure, it advisable to
contact a qualified technical person-
nel to check the seal of the heating
system(to check whether there are
any leaks).
Fig. 2
Fig. 3
04
13
2
bar
Fig. 5

8
–AL 05
Request assistance from qualified
technical personnel.
–AL 06 (fig. 6)
Press the key of the controls to
re-start the boiler.
If the error persists, request assi-
stance from qualified technical
personnel.
–AL 07 (fig. 7)
Press the key of the controls to
re-start the boiler.
If the error persists, request assi-
stance from qualified technical
personnel.
–AL 08
Request assistance from qualified
technical personnel.
–AL 10
Request assistance from qualified
technical personnel.
–AL 13 (fig. 8)
Press the key of the controls to
re-start the boiler.
If the error persists, request assi-
stance from qualified technical
personnel.
–AL 14
Request assistance from qualified
technical personnel.
–AL 15
Request assistance from qualified
technical personnel.
1.5 MINIMUM CLEARANCES
The following MINIMUM CLEARANCES
must be available for servicing the
appliance:
1.6 ROUTINE SERVICING
To comply with the conditions of any
extended warranty offered and to
ensure continued safe and efficient
operation, the boiler must be serviced
at regular intervals, at least once a
year.
This service must be recorded in the
Benchmark section of this manual.
It is the law that any service work
must be carried out by a Gas Safe
Register registered engineer.
1.7 ELECTRICAL SUPPLY
THIS APPLIANCE MUST BE EARTH-
ED. The mains supply must be fused
at 3 amp.
1.8 VENTILATION
If the appliance is installed in a cabinet,
the cabinet MUST NOT be used for
storage purposes.
Any ventilation provided for the appli-
ance during installation MUST NOT be
blocked and a periodic check must be
made to ensure that the vents are
free from obstructions.
1.9 CLEANING
Use only a damp cloth and mild deter-
gent to clean the appliance outer cas-
ing. DO NOT use abrasive cleaners.
1.10 SAFETY
It is essential that the instructions in
this booklet are strictly followed for
the safe and economical operation of
this appliance.
The appliance functions as a fan
assisted balanced flue unit. The flue
terminal MUST NOT BE OBSTRUCTED
under any circumstances.
If damaged, turn off the appliance and
consult the installer, service engineer,
or gas supplier. If it is known or sus-
pected that a fault exists on the appli-
ance it MUST NOT be used until the
fault has been rectified by a compe-
tent person.
WARNING:
IF A GAS LEAK IS SUSPECTED OR
EXISTS, TURN OFF THE GAS SUPPLY
TO THE APPLIANCE AT THE GAS
SERVICE COCK.
DO NOT OPERATE ANY ELECTRICAL
SWITCHES.
DO NOT OPERATE ANY ELECTRICAL
APPLIANCE.
OPEN ALL WINDOWS AND DOORS.
DO NOT SMOKE.
EXTINGUISH ALL NAKED LIGHTS.
CONTACT THE NATIONAL GAS
EMERGENCY SERVICE IMMEDIAT-
LEY ON 0800111999.
1.11 INSTRUCTIONS FOR
OPTIONAL TIMER SIME
PART NUMBER 7102604/
BCG NUMBER 138493
(fig. 10)
Normal Time Mode
The display shows the room tempera-
ture. If the batteries are low the
will be flashing. The old batteries must
be replaced.
The anti freeze function is activated
with on the display when the tem-
perature detected is 5°C or below.
Fig. 7
Fig. 8
Fig. 6
For servicing
ABOVE THE
APPLIANCE CASING 300 mm
AT THE R.H.S. 15 m m
AT THE L.H.S. 15 m m
BELOW THE
APPLIANCE CASING 200 mm
IN FRONT OF THE
APPLIANCE 500 mm

9
Below 0°C the display will show LO.
Above 40°C the display will show HI.
Normal Time Setting Mode
Press , the Day of the Week 1-7 will
flash (1=Monday). Press or to
select the current day of the week.
Press , the Hour will flash. Press
or to set the hour.
Press , the Minute will flash.
Press or to set the minute.
Press to confirm the settings and
return to normal mode (the display will
automatically return to normal after
10 seconds)
Factory Defined Programs
The heating will be turned on accord-
ing to the activated program and the
control temperature setting. When
the heating is ON the program num-
ber and icon are shown. The pre-
defined programs are as shown:
The factory defined program can be
adjusted to suit your personal require-
ments.
Press PRG, the hour will flash. Press
or to change the hour setting.
Press PRG, the minute will flash.
Press or to change the minute
setting.
Press PRG, the temperature will flash.
Press or to change the tempera-
ture setting.
The program setting sequence is
Mon-Fri (P1–P2–P3–P4–P5–P6)
Sat (P1–P2–P3–P4–P5–P6)
Sun (P1–P2–P3–P4–P5–P6).
Press to confirm the settings and
return to normal mode (the display will
automatically return to normal after
10 seconds)
Temporary / Permanent
Override Mode
There are two override modes, Tempo-
rary and Permanent. The sequence is
Normal-Temporary-Permanent.
The Temporary override mode main-
tains the room temperature at the
override temperature until the next
program time is met.
The Permanent override mode main-
tains the room temperature at the
override temperature until the over-
ride mode is released.
To select the override option press ,
the mode changes from Normal to
Temporary override mode and the
icon will be displayed.
Press the again, the mode changes
from Temporary override mode to Per-
manent override mode, and the
icon will be displayed.
Press the again, the mode changes
from Permanent override mode to
normal mode.
Review and adjust the
Override temperature
Press the or , the override tem-
perature is shown.
Hold the or for more than 2 sec-
onds, the override temperature will
flash.
Press the or to adjust the over-
ride temperature.
Press to confirm the settings and
return to normal mode (the display will
automatically return to normal after
10 seconds)
The adjusted override temperature is
accepted, and the display shows the
actual temperature.
Control Off / Sleep Mode
Press to select the sleep or control
off mode.
The sequence is Normal–Sleep–Con-
trol Off–Normal Mode.
Sleep Mode is displayed, the time is
displayed, the temperature is being
measured but not controlled, the cen-
tral heating is turned off.
Control Off Mode- the display is fully
turned off, the central heating is
turned off.
Press any key to return to Normal
mode.
Fig. 10
Mon–Fri Sat or Sun
P1 06:00 (21°C) 08:00 (21°C)
P2 08:00 (16°C) 10:00 (16°C)
P3 12:00 (21°C) 12:00 (21°C)
P4 15:00 (16°C) 15:00 (16°C)
P5 18:00 (21°C) 18:00 (21°C)
P6 23:00 (21°C) 23:00 (21°C)

1.12 INSTRUCTIONS FOR
PROGRAMMING
CLOCK (fig. 11)
Setting the time
The time of day can be set by grasping
the outer edge of the black dial and
turning it in a clockwise direction until
the correct time is in line with the white
pointer.
Setting the “switching time”
The “ON” periods are set by sliding the
blue tappets, adjacent to the time periods
required, to the outer edge of the dial.
The tappets that remain at the centre
of the dial will be the “OFF” periods.
N.B.: The smallest switching time (ON
or OFF) is 15 minutes.
– To select “Timed” mode move the
selector switch in the middle of the
clock face to the “”position (mid-
dle of the slot).
– To select “Constant” mode move
the selector switch in the middle of
the clock face to the “I” position
(bottom of the slot).
– To select “OFF” mode move the
selector switch in the middle of the
clock face to the “O” position (top of
the slot).
10
Fig. 11
D
r
F
(O)
I
O
Slide blue tappets
OUT for ONperiod
Slide blue tappets IN for OFF period
Mode selector switch
Slide black tap-
pets OUT
= ON period
Slide black tappets IN = OFF period
Heating OFF (O)
Heating
PROGRAMMIED
Heating ON (I)

Sime Ltd
1a Blue Ridge Park
Thunderhead Ridge
Glasshoughton, Castleford, WF10 4UA
Phone: [phone]
Fax: [phone]
www.sime.co.uk
Email: [email protected]