Glowworm Jaguar 23 kW Manual

This is a Cat II2H3+ appliance
User, Installation
and Servicing Instructions
Manufactured exclusively for Plumb Center by Hepworth Heating Division
23 kW wall hung combination boiler
28 kW wall hung combination boiler
4729

1
Users’ Instructions
Introduction ...................................................................................................... 2
Controls and lighting ........................................................................................ 2
Timeclock instruction ....................................................................................... 5
Draining and filling ........................................................................................... 8
Heating safety valve ......................................................................................... 8
Servicing/maintenance .................................................................................... 8
Cleaning ........................................................................................................... 8
Boiler casing .................................................................................................... 8
Installation Instructions
Introduction ...................................................................................................... 9
Technical data Jaguar 23 ............................................................................... 10
Technical data Jaguar 28 ............................................................................... 11
Dimensions .................................................................................................... 12
Pressure available .......................................................................................... 12
Boiler schematic ............................................................................................. 13
Installation section ......................................................................................... 14
Terminal positions .......................................................................................... 14
Heating and hot water system design ............................................................ 15
Boiler installation ............................................................................................ 18
Horizontal flue installation .............................................................................. 18
Telescopic horizontal flue installation ............................................................ 20
Vertical flue installation .................................................................................. 21
Flue configurations......................................................................................... 22
Electrical connection ...................................................................................... 23
Commissioning .............................................................................................. 24
Servicing Instructions
Routine cleaning and inspection .................................................................... 27
Replacement of parts ..................................................................................... 28
Schematic wiring diagram .............................................................................. 33
Fault finding .................................................................................................... 34
Conversion to LPG ......................................................................................... 36
Mandatory warning for CE countries
WARNING, these appliances were 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 stockist.
Thank you in advance for your assistance.
Note: The boiler serial number is marked on the data label attached to the fascia
behind the front panel. Refer to the ‘Introduction’ section for a description of the
basic functions of the boiler. The ‘User’ section describes how to safely operate
the boiler.

2
USERS INSTRUCTIONS
The Jaguar is a wall mounted combination boiler providing central heating and instanta-
neous domestic hot water.
These instructions should be carefully followed for the safe and economical use of your
boiler.
Gas leak or fault
If a gas leak or fault exists or is suspected, turn the boiler and gas supply off and
consult the local gas company or your Installer/Service provider.
In case of power supply failure
The boiler no longer operates.
As soon as power supply is restored, the boiler will restart automatically.
In case of loss of water in the system
CAUTION: The boiler is installed as part of a sealed system which must only be
drained and filled by a competent person.
If the pressure LED diod (2) flashes the pressure in CH system is less than 0.8 bar
and the system must be filled up immediately.
Important notice: A central heating system cannot operate satisfactorily unless it is
properly filled with water and unless the air initially contained in the piping systems
has been properly bled off. If these conditions are not satisfied, air noise will occur
within the system and the boiler may fail to operate.
Air in the heating system
Persistent air in the heating system may indicate leaks in the system or corrosion
taking place. Call your Installer /Service provider.
Overheating safety
In the event of problem, the overheat safety device causes safety shutdown of the
boiler. If this happens, call your Installer/Service provider.
CONTROLS AND LIGHTING
The control panel is located at the lower front of the boiler casing. The controls on this
panel allow the boiler to be started, shut down, controlled and monitored during use,
see diagram 1.
The following information is displayed:
•Actual heating temperature (°C) - LED (3) lights on
displayed during standby
•Actual domestic hot water temperature (°C) - LED (5) lights
displayed during hot water demand
•System pressure (bar) – LED (2) lights
for 25 sec after Bar/Mode button is pressed
•Diagnostic messages – displayed letter F and numbers from 0 to 4

3
Diagram 1
Controls:
1 – mains on/off switch 6 – reset button
2 – system pressure LED 7 – increase button
3 – central heating LED 8 – decrease button
4 – display 9 – pressure/mode button
5 – domestic hot water LED
The Bar/Mode button functions
1st press of button – the system pressure is dis-
played in bar
LED (2) lights
2nd press of button – hot water adjusting mode
LED (5) flashes
3rd press of button – heating water adjusting mode
LED (3) flashes
4th press of button – reverts to standby mode
To start the boiler
Switch on the mains switch (display will light up). The version of the software used is
displayed for 2 sec.
Place the slide switch on TIMECLOCK to ‘RUN’position. Use the ‘On/Off’ button to set
the boiler ‘On’. For programing see chapter ‘TIMECLOCK INSTRUCTIONS’.
To stop the boiler
Switch off the mains switch (display will go out)
If the boiler is to be out of operation for a long period, turn off the gas service cock.
Boiler setting
All parameters are adjustable by means of 3 buttons, pushing the RESET button
restarts the boiler.
Note: Buttons must be pressed in the middle.
Make sure that:
• The boiler is connected to the electrical supply.
• The boiler gas service cock is open.
• The CH system is filled up and pressurized between 1 and 2 bar.
The boiler is now ready to start.

4
Domestic hot water setting
• Press Bar/Mode button until LED (5)
flashes.
• Using buttons (7) and (8) set the desired
hot water temperature
Setting steps: 40, 42, 45, 48, 50, 52,
55, 58, 60 °C
• Set ´– –´ if hot water is not required.
• Press Bar/Mode button to save new set-
ting.
Heating setting / summer mode setting
• Press Bar/Mode button until LED (3)
flashes.
• Using buttons (7) and (8) set the desired
heating temperature
Setting steps: 45, 50, 55, 60, 65, 70,
75, 80, 85 °C
• Set ´– –´ if only hot water is required
(summer mode).
• Press Bar/Mode button to save new set-
ting.
The heating will operate according to the requirements of the timeclock and/or room
thermostat if fitted or, will operate according to the system requirements. Domestic hot
water (DHW) always has priority over central heating (CH).
Note: All new settings are stored by pressing Bar/MODE button. If Bar/MODE button is
not pressed for 20 sec the display reverts to standby mode and old settings are
retained.
Helpfull hint
If you get confused and wish to start again, switch boiler off, press and hold button (8)
and switch boiler on by main switch. The boiler will revert to the internal factory set
programme (heating temperature 80 °C, hot water temperature 50 °C, maximum heat
output).
Safety lockout
In the event of a safety lockout, the digital display will show ‘F1’.
Reset boiler by pressing the RESET button.
IMPORTANT: If safety lockout occurs frequently, or if any other fault is indicated, contact
your Installer/Service Provider.

5
CLOCK - INSTRUCTIONS FOR USE
General Description
The timeclock has an internal, factory set pro-
gramme which switches the boiler ‘On’ and ‘Off’
three times a day as below.
1st . . . . . . ON . . . . . . 06.30
1st . . . . . . OFF . . . . . 08.30
2nd . . . . . . ON . . . . . . 12.00
2nd . . . . . . OFF . . . . . 12.00
3rd . . . . . . ON . . . . . . 16.30
3rd . . . . . . OFF . . . . . 22.30
Note that the 2nd ‘On’ and ‘Off’ preset time will
not bring the boiler on. In most cases this may
not be needed at these times but can be pro-
grammed by the user if desired.
It also has an advance feature, a hold or holi-
day feature, details on how to set these are
given further on in these instructions.
Setting the Time
With the electrical supply to the boiler switched
on, place the slide switch to ‘¹’.
Press the reset ‘res’ button for a few seconds,
using a pointed object, such as a pencil. When
released the display will begin to flash, see
diagram I. Using the ‘+’ and ‘–’ buttons, set the
display to the correct time in twenty four hour
format, for example, 13.00 for 1pm, see dia-
gram II.
Helpful Hint
The ‘+’ and ‘–’ buttons are used to change
times. Press and release for small changes. If
you press and hold down the time will change
quickly.
To Set the Programme ‘On’ and ‘Off’ Times
At this stage, if you want to use the inter-
nal, factory set, programmes simply place
the slide switch to ‘Run’. The display will
show the current time.The ‘On’or ‘Off’ sym-
bol will be shown according to the time of
day.
To Override or Advance the Timeclock
To advance the time clock operation, that is,
switch the heating ‘On’ when it is ‘Off’ or the
other way round, press the ‘On/Off’ button.The
timeclock will switch the heating ‘On’ or ‘Off’
as desired and the ‘On’ or ‘Off’ symbol will flash
to show that it has been overridden. See dia-
gram III.

6
Note. The boiler will stay ‘On’ or ‘Off’, as selected,
until the timeclock programme reaches its next
‘On’ or ‘Off’ time. From then on, the timeclock
will switch the boiler ‘On’ and ‘Off’ according
to the internal programme. When the boiler is
again controlled by the internal programme the
‘On’ or ‘Off’ symbol will stop flashing.The time-
clock operation can be overridden in this way
at any time.
To Set Your Own Programme
‘On’ and ‘Off’ Times
Note. The timeclock can be set to give a mini-
mum of one and a maximum of three ‘On’ and
‘Off’ times.
Place the slide switch to ‘SET’. The display will
show the first ‘On’ time, see diagram IV.
Using the ‘+’ and ‘–’ buttons, change the first
‘On’ time to the time you require. Press the
‘Enter’ button twice. This stores the new time
and shows it to confirm it has been stored in
the timeclock memory.
Press the ‘Enter’ button again. The display will
show the first ‘Off’ time, see diagram V.
Using the ‘+’and ‘–’ button, change the first ‘Off’
time to the time you require. Press the ‘Enter’
button twice. The display will show the first ‘On’
time. Press the ‘Enter’ button again. The dis-
play will now show the first ‘Off’ time you have
just entered.
Repeat the above for the remaining ‘On’ and
‘Off’ times.
When you have set the ‘On’ and ‘Off’ times you
require, place the slide switch to ‘RUN‘.
Note. If you do not want to set all three ‘On’ and
‘Off’ times, follow the above instructions, but,
after you have set the times you require, set
the other times to show a series of dashes,
using the ‘+’ and ‘–’ button, see diagram VI.
The series of dashes are between times 23.59
and 0.00.
Helpful Hint.
If you get confused and wish to start again,
press the reset ‘res’ button and the timeclock
will go back to the internal factory set pro-
gramme. You can now reset the current time
and start again.

7
To Check the Programme ‘On’ and ‘Off’Times
The programmed ‘On’ and ‘Off’ times can be
checked at any time by moving the slide switch
from ‘RUN’ to ‘SET‘.
Successive presses of the ‘Enter’ button will
then show the ‘On’ and ‘Off’ times.
Always return the slide switch to ‘RUN’ to re-
turn to normal timed working.
To Set the ‘Hold’ or ‘Holiday’ Feature
The timeclock has a ‘Hold’ or ‘Holiday’ feature
which can be set, if required, to keep the cen-
tral heating ‘On’ or ‘Off’ for a period between
one hour and twenty seven days. This can be
used, for example to keep the central heating
‘Off’ during a holiday. After the programmed time
has gone by, the boiler returns to its normal
programmes.
To set the ‘Hold’ or ‘Holiday’ feature carry on as
follows:
Place the slide switch to ‘HOL‘, the letter ‘h’ will
appear on the display, see diagram VII.
Using the ‘+’ and ‘–’ buttons, set the ‘Hold’ time
required.
After a hold period of twenty three hours has
been exceeded, the ‘h’ symbol on the display
will change to a ‘d’. The ‘hold’ time will now be
in days, instead of hours, see diagram VIII.
Use the ‘On/Off’ button to set the boiler to the
required operation during the ‘Hold’ period.
Place the slide switch to ‘RUN’. The ‘On’ and
‘Off’ symbol will flash on the display to show
that it has been overriden, see diagram III.
After the programmed hold time, the boiler will
return to normal timed working.

8
DRAINING AND FILLING
CAUTION: The boiler is installed as part of a sealed system which must only be
drained and filled by a competent person.
If the pressure drops to 0.8 bar the pressure LED on the Bar/MODE button starts to
flash. The boiler will continue to work, but the LED warns that pressure in the CH
system is on the low limit and CH system must be filled. To fill the system, open the
tap on the filling loop below the boiler. Press the Bar/MODE button to read the system
pressure. When the pressure is between 1 and 2 bar, close the tap.
Note: If there is persistent loss of system pressure, you must consult your Installer/Ser-
vice Provider.
HEATING SAFETY VALVE
CAUTION: A safety valve with a discharge pipe is fitted to this boiler.
The valve MUST NOT BE TOUCHED except by a competent person. If the valve
discharges at any time, switch the boiler off and isolate it from the electrical supply.
Contact your Installer/Service Provider.
SERVICING/MAINTENANCE
To ensure the continued efficient and safe operation of the boiler, it is recommended
that it is checked and serviced at regular intervals. The frequency of servicing will
depend upon the installation conditions and usage but, in general, once a year should
be enough.
CLEANING
The boiler casing can be cleaned with a damp cloth followed by a dry cloth to polish.
Do not use abrasive or solvent cleaners.
BOILER CASING
CAUTION: Do not remove or adjust the casing in any way, as incorrect fitting may
result in faulty operation.
If in doubt, contact your Installer/Service Provider.

9
INSTALLATION INSTRUCTIONS
INTRODUCTION
The Jaguar is a wall mounted combination boiler providing central heating and instanta-
neous domestic hot water.
The boiler is of the II2H3+ category for use with Natural gas (G20) as distributed in the
United Kingdom, or with Butane or Propane gas (G30/G31) with the appropriate con-
version kit.
Conversion kit:
Conversion Jaguar 23 Jaguar 28
Natural gas (G20) to G30/G31 . . . . . 1/08/730 . . . . . 1/08/731
Modification must only be carried out by a suitably qualified engineer.
Boilers burning LPG or similar gases MUST NOT be fitted in basements or below
ground level.
These instructions should be carefully followed for the safe and economical use of your
boiler.
The boiler has a fan assisted, balanced, flue which both discharges the product of com-
bustion to, and draws the combustion air from the outside of the building.
Accessories
A range of accessories are available including, vertical flue components. For further
information, contact you nearest Plumb Center branch.
Gas Safety (Installation and Use) Regulations
In the interests and that of gas safety, it is the law that ALL gas appliances are installed
and serviced in by a competent person in accordance with the above regulations.
Gas leak or fault
If a gas leak or fault exists or is suspected, turn the boiler and gas supply off and consult
the local gas company or your Installer/Service Provider.
Boiler controls
The control panel, located at the lower front of the boiler, allows the boiler to be started,
shut down, controlled and monitored during use, refer to ‘Users Instructions’.

10
JAGUAR 23 – TECHNICAL DATA
CE Certification ........................................ n° ....................................................... 0063BL3573
Class ................................................................................................................................ II2H3+
Type ............................................................................................................................. C12, C32
Gas type ......................................................................... G20 ................. G30 ................. G31
Max. / min. Heat Input ............................ kW ....... 25.8 / 11.4 .......25.8 / 11.4 ...... 25.8 / 11.4
Max. / min. Heat Output ......................... kW ......... 23.0 / 9.4 .........23.0 / 9.4 ........ 23.0 / 9.4
EFFICIENCY (PCI)
Nominal efficiency .................................... % ..................................................................... 81.6
Efficiency at 30% load ............................. % ..................................................................... 79.7
HEATING
Temperature range .................................. °C ............................................................... 45 – 85
Expansion vessel ........................................ l .......................................................................... 5
Expansion vessel pressure .................... bar .......................................................................... 1
Max. working pressure ........................... bar .......................................................................... 3
Max. system temperature ....................... °C ........................................................................ 85
Max. system capacity .................................. l ...................................................................... 100
HOT WATER
Flow rate at 30°C temperature rise ...... l/min ..................................................................... 11.2
Flow rate at 35°C temperature rise ...... l/min ....................................................................... 9.6
Min. water flow ..................................... l/min .......................................................................... 2
Max. / min. supply pressure ................... bar .................................................................... 6 / 1
Temperature range .................................. °C ............................................................... 40 – 60
ELECTRICAL DATA
Voltage/frequency ............................... V/Hz .............................................................. ~230/50
Current ...................................................... A ....................................................................... 0.6
Power ........................................................ W ...................................................................... 135
Level of protection .................................... IP ................................................................... IP 44
DIMENSIONS
Width / Height / Depth ........................... mm ................................................... 410 / 740 / 320
Weight ..................................................... kg ........................................................................ 35
CONNECTIONS
Heating flow / return .............................. mm ........................................................................ 22
Domestic Water inlet / outlet ................. mm ........................................................................ 15
Gas ........................................................ mm ........................................................................ 22
Flue products outlet / air inlet ∅............. mm................................. horiz. 60/100, vert. 80/125
Horizontal flue length min/max ................ m ................................................................ 0.3 – 4
Vertical flue length min/max ..................... m ................................................................ 0.5 – 9
GAS SUPPLY PRESSURE
Burner pressure .................................. mbar ........... 3 – 15.7 ........ 5.3 – 27.5 .......... 7 – 35.6
Nominal pressure ................................ mbar .................... 20 .................... 29 .................... 37
Injectors diameter ............................. ∅mm ................. 1.07 ................. 0.68 ................. 0.68
GAS CONSUMPTION
Q max / Q min ...................................... m3/h ........... 2.7 / 1.2 ... 1.9 / 0.9 kg/h ... 1.9 / 0.8 kg/h
Air flow .................................................. m3/h .................. 100 .................. 100 .................. 100

11
JAGUAR 28 – TECHNICAL DATA
CE Certification ........................................ n° ....................................................... 0063BL3573
Class ................................................................................................................................. II2H3+
Type................................................................................................ .......................... C12, C32
Gas type ......................................................................... G20 ................. G30 ................. G31
Max. / min. heat input ............................. kW ......... 30.3/13.1 ......... 30.3/13.1 ........ 30.3/13.1
Max. / min. heat output ........................... kW ......... 27.6/11.0 ......... 27.6/11.0 ........ 27.6/11.0
EFFICIENCY (PCI)
Nominal efficiency .................................... % ..................................................................... 82.3
Efficiency at 30% load ............................. % ..................................................................... 80.5
HEATING
Temperature range .................................. °C ............................................................... 45 – 85
Expansion vessel ........................................ l .......................................................................... 7
Expansion vessel pressure .................... bar .......................................................................... 1
Max. working pressure ........................... bar .......................................................................... 3
Max. system temperature ....................... °C ........................................................................ 85
Max. system capacity .................................. l ...................................................................... 130
HOT WATER
Flow rate at 30°C temperature rise ...... l/min ..................................................................... 13.0
Flow rate at 35°C temperature rise ...... l/min ..................................................................... 11.1
Min. water flow ..................................... l/min ....................................................................... 2.7
Max. / min. supply pressure ................... bar .................................................................... 6 / 1
Temperature range .................................. °C ............................................................... 40 – 60
ELECTRICAL DATA
Voltage / frequency ............................. V/Hz ............................................................ ~230 / 50
Current ...................................................... A ..................................................................... 0.63
Power ........................................................ W ...................................................................... 145
Level of protection .................................... IP ................................................................ IP X4D
DIMENSIONS
Width / height / depth ............................ mm ............... ......... ......................... 450 / 800 / 330
Weight ..................................................... kg ..................................................................... 40.5
CONNECTIONS
Heating flow / return .............................. mm ........................................................................ 22
Domestic Water inlet / outlet ................. mm ........................................................................ 15
Gas ........................................................ mm ........................................................................ 22
Flue products outlet / air inlet ∅............. mm..................................horiz. 60/100, vert. 80/125
Horizontal flue length min. – max. ........... m ................................................................ 0.5 – 3
Vertical flue length min. – max. ................ m .................................................................... 1 – 9
GAS SUPPLY PRESSURE
Burner pressure .................................. mbar ........ 2.5 – 14.0 ........ 4.9 – 27.5 ....... 4.9 – 36.0
Nominal pressure ................................ mbar .................... 20 .................... 29 .................... 37
Injectors diameter ............................. ∅mm ................... 1.2 ................. 0.73 ................. 0.73
GAS CONSUMPTION
Q max / Q min ...................................... m3/h ............. 3.2 / 1.4 ......... 2.2 / 1.0 kg/h ......... 2.2 / 1.1 kg/h
Air flow .................................................. m3/h .................. 135 .................. 135 .................. 135

12
Diagram 2
Diagram 3
1 – Heating flow (pipe diameter 22 mm)
2 – Hot water outlet (pipe diameter 15 mm)
3 – Gas inlet (pipe diameter 22 mm)
4 – Cold water mains inlet (pipe diameter 15 mm)
5 – Heating return (pipe diameter 22 mm)
6 – Wall
7 – Wall fixings
8 – Outer cover
DIMENSIONS AND PRESSURE AVAILABLE
Jaguar 23
A 740
B 410
C45
D 200
E75
F 214
G 162
H 320
I95
J 147
K90
Jaguar 28
A 800
B 450
C65
D 225
E83
F 228
G 180
H 330
I 105
J 160
K70

13
Diagram 4
BOILER SCHEMATIC
1 – Air pressure switch
2 – Fan
3 – Heat exchanger
4 – Burner
5 – Gas valve
6 – Expansion vessel
7 – Pump
8 – Water flow sensor
9 – Pressure gauge connection
10 – By-pass pipe
11 – Safety valve
12 – Heating return
13 – Domestic cold water inlet
14 – Gas inlet
15 – DHW thermistor
16 – DHW outlet
17 – Automatic by-pass
18 – Heating flow
19 – Drain
20 – Microswitch
21 – Loss of water pressure switch
22 – 3-way valve
23 – Differential valve
24 – Microswitch
25 – Secondary heat exchanger
26 – CH temperature sensor
27 – High limit thermostat

14
INSTALLATION SECTION
Clearances
To allow for servicing, the boiler should be installed with the following clearances:
50 mm either side of the boiler
600 mm to the front of the boiler
300 mm below the boiler
200 mm above the boiler
TERMINAL POSITION
The minimum acceptable spacings from the terminal to obstructions and ventilation
openings are shown in diagram 5 below:
Minimum dimensions (in mm) for the positioning of flue terminals
Diagram 5
a Under a window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
b Under an air vent . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
c Under a gutter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
d Under a balcony . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
e From an adjacent window . . . . . . . . . . . . . . . . . . . . . 300
f From an adjacent air vent. . . . . . . . . . . . . . . . . . . . . . 300
g From vertical drain pipes or soil pipes . . . . . . . . . . . . . 75
h From an external corner of the building . . . . . . . . . . . 300
i From an internal corner of the building . . . . . . . . . . . 300
l From the ground or from another floor . . . . . . . . . . . . 300
m Between two terminals vertically . . . . . . . . . . . . . . . 1500
n Between two terminals horizontally . . . . . . . . . . . . . . 300

15
HEATING SYSTEM DESIGN
The Jaguar is compatible with any type of sealed system installation, i.e. radiators, fan
convectors etc.
Pipe sectional areas shall be determined in accordance with normal practices, using the
pump curve, refer to ‘Technical Data’. The distribution system shall be calculated in
accordance with the output requirements of the actual system, not the maximum output
of the boiler. However, provision shall be made to ensure sufficient flow so that the tem-
perature difference between the flow and return pipes is less than or equal to 20 °C. The
minimum flow is 500 l/h.
The piping system shall be routed so as to avoid any air pockets and facilitate permanent
venting of the installation. Bleed fittings shall be provided at every high point of the sys-
tem and on all radiators.
The total volume of water permitted for the heating system depends, amongst other
things, on the static head in the cold condition. The expansion vessel on the boiler is
pressurised at 1 bar (corresponding to a static head of 10 m wg.) and allows a maximum
system volume of 100 litres (Jaguar 23), 130 litres (Jaguar 28) for an average tempera-
ture of 75 °C and a maximum service pressure of 3 bar. This pressure setting can be
modified at commissioning stage if the static head differs.
Provision shall be made for a drain valve at the lowest point of the system.
Thermostatic radiator valves are permitted, however, not all radiators must be fitted with
this type of valve and particularly where the room thermostat is fitted.
A WRC approved filling loop is supplied with the boiler to enable correct filling of the
system.
In all cases, it is ESSENTIAL that the system be thoroughly flushed prior to installing the
new boiler.
Domestic hot water system design
Copper tubing or plastic Hep2O may be used for the domestic hot water system. Unnec-
essary pressure losses should be avoided. The domestic hot water supply pressure
must be between 1 and 6 bar. If the pressure exceeds 6 bar, a pressure reducing valve
must be fitted. In known hard water areas, it is recommended that
a suitable scale reducing device is fitted to the cold water
supply to the boiler.
Diagram 6
Boiler connections
AHeating flow
BHot water outlet
CGas connection
DCold water mains inlet
EHeating return
FSafety valve discharge connection
Heating system connections
- Pipe diameter 22 mm.
Hot water system connections
- Pipe diameter 15 mm.
Gas connection
- Pipe diameter 22 mm.
Safety valve discharge connection
- Pipe diameter 22 mm.
Note: White colored washers must be used for the
hot water system connections.

16
Safety valve discharge
WARNING: It must not discharge above an entrance or window or any type of public
access area.
Connect the safety valve discharge pipe to the valve, the discharge must be extend-
ed using not less than 15 mm o.d. pipe, to discharge in a visible position outside the
building, facing downward, preferably over a drain. The pipe must have a continuous
fall and be routed to a position so that any discharge of water, possibly boiling or
steam, cannot create any danger to persons, damage to property or external elec-
trical components and wiring. Tighten all pipe connection joints.
Gas connection
The supply from the governed meter must be of adequate size to provide a constant
inlet working pressure of 20 mbar for Natural gas (28 – 30 mbar for Butane or 37 mbar
for Propane).
To avoid low pressure problems, it is recommended that the supply is taken to the
boiler using 22 mm pipe as far as possible.
On completion, the gas installation must be tested using the pressure drop method
and purged in accordance with the current issue of BS6891.
Gas Safety (Installation and Use) Regulations
In your interests and that of gas safety, it is the law that ALL gas appliances are
installed and serviced by a competent person in accordance with the above regula-
tions.
Statutory requirements
The installation of this boiler must be carried out by a competent person in accor-
dance with the relevant requirements of the current issue of:
The Gas Safety (Installation and Use) Regulations
The Building Regulations
The local water company Bylaws
The Building Standards Regulations (Scotland)
The Health and Safety at Work Act
Sheet metal parts
WARNING: When installing or servicing this boiler, care should be taken when handling
the edges of sheet metal parts to avoid the possibility of personal injury.
Installing the boiler
Prior to installing the boiler, the system must be thoroughly flushed to eliminate any
foreign bodies and contaminents such as filings, solder, particles, oil, grease etc.
Note: Solvent products could cause damage to the system.

17
Diagram 7
BOILER TEMPLATE
Boiler connections
AHeating flow
BHot water outlet
CGas connection
DCold water mains inlet
E Heating return
FSafety valve discharge connection
Jaguar 23 Jaguar 28

18
HORIZONTAL FLUE INSTALLATION
AAir inlet pipe
BTerminal
CSeal and clamp
DElbow
EGasket
FScrews
GExternal rubber sealing collar
IInternal plastic collar
J‘O’ rings
KSpacer (Jaguar 23 only)
Diagram 8
BOILER INSTALLATION
To install the boiler, proceed as follows:
• Allowing sufficient clearances for servicing/repair, place the template on the wall (see
diagram 7).
Note: The boiler can be installed only on the closed wall.
• Determine the position of the flue hole and drill hole for flue, preferably using a 120 mm
core drill.
• Drill two 10 mm holes for the wallplugs supplied.
• Screw fixing screws supplied into wallplugs, leave proud by approx. 10 mm.
Note: Boiler fixing holes are keyhole type slots at the top of the boiler to allow easy
hanging of boiler.
• Remove template.
• Hang the boiler on the screws and tighten screws.
Note: As a option the hanging bracket can be used. Two screws are sufficient for fixing
of the hanging bracket. Hanging bracket fixing screws have to be fully tight before the
boiler is hung on.
Pipework connections
• Remove plastic caps from boiler connections.
• Connect the central heating pipework connections and isolating cocks as shown on
diagram 6.
• Connect the domestic cold water inlet connection and isolating cock.
• Connect the hot water outlet connection.
• Connect the safety valve discharge pipe.
• Connect the gas connection and isolating cock.
• Finally, connect the filling loop between the cold water inlet pipe and the heating flow
pipe.

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Diagram 9
Standart top
outlet flue
90° elbow
Extension
pipe
Standart top
outlet flue
• Fit gasket (E) onto underside of flue elbow (D).
• Carefully insert ‘O’ ring (J) into upper and lower parts of inner elbow.
• Place spacer (K) (supplied with boiler) onto top of boiler Jaguar 23 only (see dia-
gram 9).
• Fit elbow onto spacer ensuring elbow inner connection locates correctly onto fan
outlet.
• Fit external rubber sealing collar (G) onto air inlet pipe (A).
• Fit flue through hole in wall and pull up so that external collar (G) is flush against
outside wall.
• Fit seal and clamp (C) to flue and assemble into elbow (D) making sure that both inner
and outer pipes are sealed properly.
Note: Maximum horizontal length with no bends is 4 m (Jaguar 23) or 3 m (Jaguar 28).
For horizontal flue lengths up to 1 m the restrictor must be left in the fan outlet, see
diagram 9. For horizontal flue lengths between 1 and 4 m (Jaguar 23) or 3 m (Jaguar 28),
remove the restrictor (R).
• Tighten up clamp using screws provided.
Note: Should it be necessary to cut the flue, always cut equal amounts from both inner
and outer pipes.
Always cut the end furthest from the terminal.
For each 90° flue bend fitted, reduce overall flue length by 1 m.
For each 45° flue bend fitted, reduce overall flue length by 1/2 m.
Horizontal flue kit 1/08/710
Flue extension kit 1/08/711
90° concentric bend kit 1/08/712
45° concentric bend kit 1/08/713
K* -Jaguar 23
only