ROC COMBI HE 2802 Owner's manual

Suitable for:
● Installation Personnel
● Service Provider
Manual for Installation
and Maintenance
Condensing Wall Mounted
Gas Fired Combination
Boilers:
ROC COMBI HE 2802
ROC COMBI HE 2810
ROC COMBI HE 4010
G.C.N:47-492-01(28 KW)
G.C.N:47-492-02(40 KW)

3
CONTENT
Overview
Reading advices...................................4
Customer care......................................4
Advice for the installer.......................5-6
CE symbol............................................6
Safe regulations................................7-8
Product description
Control panel........................................9
Display.................................................9
Overall view........................................10
Overall dimension.........................11-12
Technical data....................................13
Appliance installation
Reference standard............................14
Flue...............................................14-15
Ventilation..........................................15
Gas supply.........................................15
Power supply.....................................15
Water supply......................................15
Shower...............................................16
Flushing and water treatment........16-17
System controls.................................17
Installation position............................17
Condensate discharge...................17-19
Installing the boiler.............................19
Installation noise................................19
Opening the box.................................20
Position the boiler on the wall............20
Installation of pipe work.....................20
Draining the boiler..............................21
Safety relief valve...............................21
Gas connection..................................21
Water connection.........................21-22
Flue system..................................23-25
Instruction and precautions for power
connection.........................................26
Connecting additional controls..........27
Appliance commissioning..................28
Appliance adjustment
Check the circuit and power.............29
Cleaning of heating system..............29
Checks before operation.............30-31
First operation.............................31-33
ECS Control Operations....................33
ECS parameter chart........................34
Flue gas analysis..............................35
Capacity adjustment...................35-36
Maintenance
Precautions......................................37
Anti-freeze function..........................37
Error Codes.................................38-40
Gas boiler dismantling instruction
General access...........................41-42
Circuit component...........................43
PCB and Display..............................44
Water system..................................45
Safety valve and exhaust valve........46
Pump and plate heat exchanger......47
Combustion system........................48
Fan..................................................49
Main heat exchanger..................50-52
Annual Maintenance...................53-54
Benchmark commissioning checklist.....55
Benchmark service interval record.........56

4
Reading advices
These instructions are suitable for ROC wall mounted gas boilers: ROC COMBI HE 28 and ROC
COMBI HE 40. To ensure the correct installation, commissioning and servicing of domestic central
heating system please read the general information provide in these instructions.
OVERVIEW
Do not forget the Service Book
Customer care
ROC, as a leading manufacturer of domestic and commercial water heating appliances is
committed to providing high quality products and a high quality after sales service.
Support telephone number: 08452268261
Email: [email protected]
GUARANTEE
ROC Combi Boilers 2810 and 4010 both come with a Parts and Labour Warranty for 10 years
from the date of Installation, ROC Combi boiler 2802 has a 2 Year parts and Labour Warranty
from the date of installation. For full details and registration visit www.rocboilers.co.uk.
CAUTION
In the United Kingdom, installation, start-up, adjustments and maintenance, must be
performed by a competent person only, in accordance with the current Gas Safety (Installation
& Use) Regulations and the instructions provided.
Improper installation may cause damage or injury to individuals, animals and personal
property for which the manufacturer will not be held liable. To ensure efficient and safe
operation it is recommended that the boiler is serviced annually by a GAS SAFE engineer..
All GAS SAFE registered installers carry a GAS SAFE ID card, and have a registration
number. Both should be recorded in your boiler Service Book. You can check your installer
is GAS SAFE registered by calling GAS SAFE directly on:-0800 408 5500.
If it is known that a fault exists on the appliance, it must not be used until the fault has been
corrected by a GAS SAFE engineer.
The manufacturer will not take any responsibility for the harm and loses which is caused by
not following these instructions.
To the installer
As part of the commissioning of this appliance it is vital that the Service Book is completed and
given to the Householder. Please ensure that your customer is aware of the importance of keeping
the Service Book safe as a record of the installation and the appliance service history.Please
ensure that your customer is aware of the correct operation of the system, boiler and controls.
ROC recommends that protective clothing is used when installing and working on the appliance i.e.
protective gloves.

5
Advice for the installer
The installation and first ignition of the
boiler must be performed by qualified
personnel in compliance with current
national regulations regarding installation,
and in conformity with any requirements
established by local authorities and public
health organizations. After the boiler
has been installed, the installer must
ensure that the end user receives the
declaration of conformity and the operating
manual, and should provide all necessary
information as to how the boiler and the
safety devices should be handled.
This appliance is designed to produce
hot water for domestic use. It should
be connected to a heating system and a
distribution Network for domestic hot water,
both of which must be compatible with its
performance and power levels.
The use of the appliance for purposes other
than those specied is strictly forbidden .The
manufacturer cannot behold responsible for
any damage caused by improper, incorrect
and unreasonable use of the appliance or by
the failure to comply with the instructions
given in this manual.
Installation, maintenance and all other
interventions must be carried out in
full conformity with the governing legal
regulations and the instructions provided by
the manufacturer. Incorrect installation can
harm persons, animals and possessions; the
manufacturer shall not be held responsible
for any damage caused as a result.
The boiler is delivered in a carton. Once
you have removed all packaging, make sure
the appliance is intact and that no parts
are missing. If this is not the case, please
contact your supplier.
Keep all package materials (clips, plastic
bags, polystyrene foam etc.) out of reach of
children as it may present a potential hazard.
In the event of a fault and/or malfunction,
turn the appliance off, turn off the gas and
do not attempt to repair it yourself. Contact
a qualied professional instead.
Before any maintenance or repair work is
performed on the boiler, make sure you have
disconnected it from the electricity supply
by switching the external switch to the “OFF”
position and removing the fuse.
All repairs, which should only be performed
using original spare parts, should be carried
out by a qualified professional. Failure to
comply with the above instructions could
compromise the safety of the appliance
and invalidate all liability on the part of the
manufacturer.
In the event of any maintenance or other
structural work in the immediate vicinity of
the ducts or flue gas exhaust devices and
their accessories, switch the appliance off by
switching the external switch to the “OFF”
position and shutting off the gas control
valve. When the work has been completed,
ask a qualified technician to check the
efciency of the ducting and the devices.

6
Symbols used on the data plate
CE symbol
The CE symbol guarantees that the
appliance conforms to the following
directives:
-2009/142/CEE
relating to gas appliances
-2004/108/CEE
relating to electromagnetic compatibility
-92/42/CEE
relating to energy efciency
-2006/95/CEE
relating to electrical safety
Clean using a cloth dampened with soapy
water. Do not use aggressive detergents,
insecticides or toxic products. If the
appliance is used in full compliance with
current legislation, it will operate in a safe,
environmentally-friendly and cost-efficient
manner.
If using kits or optional extras, make sure
they are authentic.
Turn the boiler off and turn the external
switch “OFF” to clean the exterior parts of
the appliance.

7
Failure to comply with this warning
implies the risk of personal injury, in some
circumstances even fatal.
Failure to comply with this warring
implies the risk of damage, in some
circumstance even serious, to property,
plants or animals.
Install the appliance on solid wall which is
not subject to vibration.
Noisiness during operation.
When drilling holes in the wall for
installation purposes, take care not to
damage any electrical wiring or existing
piping.
Electrocution caused by contact with
live wires. Explosions, res or asphyxiation
caused by gas leaking from damaged piping.
Damage to existing installations. Flooding
caused by water leaking from damaged
piping.
Perform all electrical connections using
wires which have a suitable section.
Fires caused by overheating due to
electrical current passing through undersized
cable.
Protect all connection pipes and wires
in order to prevent them from being
damaged.
Electrocution caused by contact with
live wires. Explosions, res or asphyxiation
caused by gas leaking from damaged piping.
Flooding caused by water leaking from
damaged piping.
Make sure the installation site and any
systems to which the appliance must be
connected comply with the applicable
norms in force.
Electrocution caused by contact with live
wires which have been installed incorrectly.
Damage to the appliance caused by improper
operating conditions.
Use suitable manual tools and equipment
(make sure in particular that the tool is
not worn out and that its handle is fixed
properly); use them correctly and make
sure they do not fall from a height. Replace
them once you have nished using them.
Personal injury from the falling splinters
or fragments, inhalation of dust, shocks,
cuts, pricks and abrasions. Damage to the
appliance or surrounding objects caused by
falling splinters, knocks and incisions.
Use electrical equipment suitable for its
intended use (in particular, make sure
that the power supply cable and plug are
intact and that the parts featuring rotary
or reciprocating motions are fastened
correctly); use this equipment correctly; do
not obstruct passageways with the power
supply cable, make sure no equipment
could fall from a height. Disconnect it and
replace it safely after use.
Personal injury caused by fall splinters
or fragments, inhalation of dust, knocks,
cuts, puncture wounds, abrasions, noise
and vibration. Damage to the appliance
or surrounding objects caused by falling
splinters, knocks and incisions.
Make sure any portable ladders are
positioned securely, that they are suitable
strong and that the steps are intact and not
slippery and do not wobble when someone
climbs them. Ensure someone provides
supervision at all times.
Personal injury caused by falling from
a height or cuts (stepladders shutting
accidentally).
Make sure any rolling ladders are
positioned securely, that they are suitable
strong, that the steps are intact and not
slippery and that the ladders are tted with
handrails on either side of the ladders and
parapets on the landing.
Safety regulations
Key to symbols:

8
Damage to the appliance or surrounding
objects from shocks, knocks, incisions and
squashing.
All operations inside the appliance must
be performed with the necessary caution
in order to avoid abrupt contact with sharp
parts.
Personal injury caused by cuts, puncture
wounds and abrasions.
Reset all the safety and control functions
affected by any work performed on the
appliance and make sure they operate
correctly before restarting the appliance.
Explosions, rs or asphyxiation caused
by gas leaks or an incorrect ue gas exhaust.
Damage or shutdown of the appliance
caused by out-of-control operations.
Before handing, empty all components that
may contain hot water, carrying out any
bleeding if necessary.
Personal injury caused by burns.
Descale the components, in accordance
with the instructions provided on the safety
data sheet of the product used, airing the
room, wearing protective clothing, avoid
mixing different products, and protect the
appliance and surrounding objects.
Personal injury caused by acidic
substances coming into contact with skin
or eyes; inhaling or swallowing harmful
chemical agents. Damage to the appliance or
surrounding objects due to corrosion caused
by acidic substances.
If you detect a smell of burning or smoke,
keep clear of the appliance, disconnect
it from the electricity supply, open all
windows and contact the technician.
Personal injury caused by burns, smoke
inhalation, asphyxiation.
Personal injury caused by falling from a
height.
During all work carried out at a certain
height (generally with a difference in
height of more than two metres), make
sure that parapets are used to surround the
work area or that individual harness are
used to prevent falls. The spare where any
accidental fall may occur should be free
from dangerous obstacles, and any impact
upon falling should be cushioned by semi-
rigid or deformable surfaces.
Personal injury caused by falling from a
height.
Make sure the workplace has suitable
hygiene and sanitary conditions in terms
of lighting, ventilation and solidity of the
structures.
Personal injury caused by knocks,
stumbling etc.
Protect the appliance and all areas in the
vicinity of the work place using suitable
material.
Damage to the appliance or surrounding
objects caused by falling splinters, knocks
and incisions
Handle the appliance with suitable
protection and with care.
Damage to the appliance or surrounding
objects from shocks, knocks, incisions and
squashing.
During all work procedures, wear
individual protective clothing and
equipment.
Personal injury caused by electrocution,
falling splinters or fragments, inhalation
of dust, shocks, cuts, puncture wounds,
abrasions, noise and vibration.
Place all debris and equipment in such a
way as to make movement easy and safe,
avoiding the formation of any piles which
could yield or collapse.

9
PRODUCT DESCRIPTION
1 2 3 4 5 6
Control panel
Display
1. Flame indication icon (ame
indicates when burning)
2. Error indication icon (indicator
ashes when error occurs)
3. Hot water only icon (indicator
ashes when performing hot water
function)
4. Central heating icon (indicator
ashes when performing heating
function)
5. Temperature/Error icon (hot water
and heating temperature indicate, error
code indicator (when error occurs)
1
2
3
4
5
4).ON/OFF (Power) button (Central heating/ Hot
Water only mode)
5).Heating temperature up/down button
6).Pressure gauge
1).Timer
2).D.H.W. temperature up/down button
3).Display

10
Overall view
1.Main heat exchanger
2.Flue gas temperature sensor
3.Syphon
4.Heating temperature sensor
5.Electric box
6.Timer
7.Fan
8.Gas/air mixed burner
9.Air inlet pipe (burner)
10.Expansion tank
11.Heating water temperature sensor
12.Drain point
13.Pressure gauge
14.Overheat protector
15.Ignition needle
16.Burner
17.Flame detection needle
18.Three way motor
19.Domestic heat exchanger
20.Gas valve
21.Pressure switch
22.Hot water temperature sensor
23.Water ow volume sensor
24.Safety valve
25.Air exhaust valve
26.Pump

11
Overall dimension
A. Gas
B. Domestic hot water
C. Cold water
D. Inlet of central heating water
E. Outlet of central heating water
F. Pressure relief valve pipe
A. Gas
B. Domestic hot water
C. Cold water
D. Inlet of central heating water
E. Outlet of central heating water
F. Pressure relief valve pipe
ROC COMBI HE 28
ROC COMBI HE 40

12
Minimum clearance
In order to allow easy access to the boiler for
maintenance, operation, the boiler must be in accordance
with the clearances stated below.
The following minimum distance should
be left for equipment’s installation and
maintenance.
- Distance on the bottom:300mm
- Distance on the side position:5mm
- Distance on the top:300mm
- Distance on the front :500mm
5
300
300
5

13
ROC COMBI HE 28 ROC COMBI HE 40
Model
Boiler type
CE Certication
Capacity
Max/min nominal caloric ow rate(Pci) Qn
Max/min nominal caloric ow rate(Pcs) Qn
Max/min power output(80°C-60°C) Pn
Max/min power output(50°C-30°C) Pn
ERP Rating
Heating
Hot water
Noise level
Efciency
Efciency rating (dir.92/42/EEC)
SEDBUK class
Nominal caloric ow rate efciency(60/80°C)Hi/Hs
Nominal caloric ow rate efciency(30/50°C)Hi/Hs
Efciency at 30% at 30°C Hi/Hs
Efciency at 30% at 47°C Hi/Hs
Minimum caloric ow rate efciency(60/80°C)Hi/Hs
General data
NOxclass
Available air pressure
Flue gas temperature(G20)(80°C-60°C)
CO2 content(G20)(80°C-60°C)
CO
2
content(0%O
2
)(80°C-60°C)
O
2
content(G20)(80°C-60°C)
Maximum ue gas ow(G20)(80°C-60°C)
Excess air(80°C-60°C)
Anti-frost protection system start temperature
Minimum domestic hot water volume
Sanitary water maximum pressure
Sanitary water minimum pressure
Expansion tank capacity
Expansion tank preset pressure
Heating system maximum pressure
NG normal pressure
Performance
Heating water maximum temperature
Hot water maximum temperature
Hot water rate ( △T=35°C)
Electrical
Electric supply
Input electric power
Protection level
Weight
Dimension (Lx H x D)
-
-
KW
KW
KW
KW
class
class
dB
STARS
class
%
%
%
%
%
class
Pa
°C
%
ppm
%
kg/h
%
°C
kg/min
MPa
MPa
L
MPa
MPa
KPa
°C
°C
kg/min
V~/Hz
W
-
KG
mm
C13 C63
51CN4162(L1GB37-B40CP)
36.0/6.0
39.9/6.7
35.5/5.9
37.8/6.3
A
A
62
****
A / 90.2
98.1/88.5
105.0/94.7
107.0/96.5
98.1/88.5
98.1/88.5
5
100
64
9.0
100
4.5
59.4
27
5
2.5
0.8
0.02
8
0.1
0.25
2.0
80-30
60-30
16.4
230/50
150
IPX4D
41.9
880X515X365
Technical data
C13 C63
51CN4162(LJLGB26-B28CP)
26.0/5.2
28.8/5.8
25.7/5.1
27.4/5.5
A
A
57
****
A / 90.6
98.0/88.4
105.4/95.0
108.0/97.4
98.0/88.4
98.0/88.4
5
100
64
9.0
100
4.5
42.9
27
5
2.5
0.8
0.02
6.5
0.1
0.25
2.0
80-30
60-30
11.5
230/50
110
IPX4D
38.8
880X515X350

14
Reference standard
In the United Kingdom, the installation and
initial start-up of the boiler must be by a Gas
Safe registered installer in accordance with the
installation standards currently in effect, as
well as with any and all local health and safety
standards i.e. Gas Safe.
In the Republic of Ireland the installation and
initial start-up of the appliance must be carried
out by a competent person in accordance
with the current edition of I.S.813 ”Domestic
Gas Installations” and the current Building
Regulations, reference should also be made to
the current ETCI rules for electrical installation.
The installation of this appliance must be in
accordance with the relevant requirement of
the local Building Regulation, the current I.E.E.
Wiring Regulations, the by-laws of the local
authority. In Scotland, Regulation and Health
and Safety document No. 635,”Electricity at
Work Regulations 1989” and in the Republic
of Ireland with current edition of I.S.813 and
the Local Building Regulation (IE).
C.O.S.H.H.
Materials used in the manufacture of this
appliance are non-hazardous and no special
precautions are required when servicing.
Code of Practice
Installation should also comply with the
following British Standards Code of Practice.
APPLIANCE INSTALLATION
BS 7593
BS 5546
BS 5440-1
BS 5440-2
Treatment of water in domestic
hot water central heating systems
Installation of hot water supplies
for domestic purposes
Flue
Air supply
BS EN 12828:2003
BS EN 12831:2003
BS EN 14336:2004
BS 6798
BS 6891
BS 7671
BS 4814
BS 5482
Heating systems in
buildings. Design for
water-based heating
systems.
Heating systems in
buildings. Method for
calculation of the design
heat load.
Heating systems in
buildings. Installation and
commissioning of water-
based heating systems.
Installation of gas red
hot water boilers of rated
input not exceeding 70kW
Installation of low
pressure gas pipes up to
35mm
IEE Wiring Regulations
Specication for
expansion vessels
Installation of L.P.G
Flue
Detailed information on ue assembly can be
found in the “Connecting the Flue” section.
The boiler must be installed so that the flue
terminal is exposed to the free passage of
external air at all times and must not be
installed in a place likely to cause nuisance. It
must not be allowed to discharge into another
room or space such as an outhouse or closed
lean-to.
and in the Republic of Ireland in accordance
with the following codes of practice:
I.S.813 Domestic Gas Installations
Avoid installing the boiler where the air
inlet can be polluted by chemical products
such as chlorine (swimming pool area), or
ammonia (hair dresser) or alkaline products
(launderette).

15
Condensing boilers have a tendency to form a
plume of water vapour from the ue terminal
due to the low temperature of the ue gasses.
The terminal should therefore be located with
due regard for damage or discolouration that
may occur to building within the vicinity and
consideration must also be given to adjacent
boundaries, openable windows should also
be taken into consideration when sighting the
ue.
It may be necessary to protect the terminal
with a guard, if this is the case it will be
necessary to purchase a stainless steel
terminal guard. Reference should be made to
the building Regulations for guidance.
Ventilation
The room in which the boiler is installed does
not require specific ventilation. If the boiler
is installed in a cupboard or compartment
ventilation is not required for cooling
purposes.
Gas supply
The gas installation and tightness testing must
be in accordance with IGE/UP/1B. Ensure that
the pipe size is adequate for demand including
other gas appliances on the same supply.
Power supply
The gas boiler requires 230V-50Hz supply in
accordance with IEE regulations, and must
also allow the appliance to be electrically
isolation. The connection should be via 3 amp
double pole fuse isolating switch, and the
contacts separated by at least 3 mm on both
poles. Alternatively a fused 3 amp, 3 pin plug
and unswitched socket may be used, provided
it is not used in a room containing a bath or
shower, it. It should only supply the gas boiler.
Water supply
The boiler is suitable for sealed systems
only. The maximum working pressure for the
appliance is 6 bar. All ttings and pipework for
the appliance should be of the same standard.
If there is a possibility of the incoming mains
pressure exceeding 6 bar, particularly at night,
then a suitable pressure limiting valve must be
tted.
The boiler is designed to provide hot water
on demand to multiple outlets within the
property. If there is a requirement for greater
demands, for example if the house has several
bathrooms and cloakrooms, a vented or
unvented hot water storage system may be
used.

16
Shower
Any shower valves used with the appliance
should be of a thermostatic or pressure
balanced type. Refer to the shower
manufacturer or performance guidance and
suitability.
Flushing and Water Treatment
The boiler is equipped with a stainless steel
heat exchanger.
The detailed recommendations for water
treatment are given in BS 7593:2006
(Treatment of water in domestic hot water
central heating system); the following notes
are given for general guidance.
If the boiler is installed on the existing system,
any unsuitable additives must be removed.
Under no circumstances should the boiler be
red before the system has been thoroughly
ushed; the ushing procedure must be in line
with BS 7593:2006.
We strongly recommend the use of a ushing
detergent appropriate for the metals used in
the circuit. These include cleansers produced
by Fernox and Sentinel, Whose function is to
dissolve any foreign matter that may be in the
system.
In hard water areas or where large quantities
of water are in the system the treatment of
water to prevent premature scaling of the main
heat exchanger is necessary.
The formation of scale heat compromises the
efciency of the thermic exchanger because
small areas of scale cause a high increase
of the temperature of the metallic walls and
therefore add to the thermal stress of the heat
exchanger.
Deminieralised water is more aggressive so in
this situation it is necessary to treat the water
with an appropriate corrosion inhibitor.
Any treatment of water by additives in the
system for frost protection or for corrosion
inhibition has to absolutely suitable for all
metals used in the circuit.
The use of a corrosion inhibitor in the system
such as Fernox MB-1, Sentinel X100 or
Fernox system Inhibitor is recommended
to prevent corrosion (sludge) damaging the
boiler and system;
If anti-freezing substances are to be used
in system, check carefully that they are
compatible with the metals used in the circuit.
ROC suggests that use of suitable anti-freeze
products such as Fernox, which will prevent
rust and incrustation taking place.
Periodically check the PH balance of water/
anti-freeze mixture of the boiler circuit and
replace it when the amount measured is out
of range stipulated by the manufacturer (7<
pH < 8). DO NOT MIX DIFFERENT TYPES OF
ANTI-FREEZE
In under-floor heating system, the use of
plastic without protection against penetration
of oxygen through the walls can cause
corrosion of the systems metal parts (metal
piping, boiler etc.) through the formation of
oxides and bacterial agents.

17
To prevent this problem it is necessary to
use the pipes with an “oxygen proof barrier”,
in accordance with standard DIN4726/4729.
If pipes of this kind are not used, keep
the system separate by installing heating
exchangers of those with a specic system
water treatment.
IMPORTANT
Failure to carry out the water treatment
procedure will invalidate the appliance
guarantee.
System controls
The boiler is electrically controlled and is
compatible with most modern electronic time
and temperature controls. The addition of
such external controls can be benecial to the
efficient operation of the system. The boiler
connections for external controls are 12V
DC and so only controls of 12V DC that have
voltage free contacts should be used.
ROC supply a range wire and wireless system
controls, please contact your supplier for more
information.
Installation position
The boiler can be installed on any suitable
internal wall (sound proong may be required
when installing onto a stud partition wall).
Provision must be made to allow for the
correct routing of the flue and sighting of
terminals to allow the safe and efficient
removal of the ue products. A compartment
or cupboard may be used provided that it
has been built or modified for this purpose.
It is not necessary to provide permanent
ventilation for cooling purposes. Detailed
recommendations are given in BS 5440 Part
2. If it is proposed that it is to be installed in a
timber framed building then reference should
be made to IGEM Document, IGE/UP/7 or
advice sought from Gas Safe.
When a room sealed appliance is installed
in a room containing a bath or shower,
the appliance and any electrical switch or
appliance control, utilizing mains electricity
should be situated specically in accordance
with current IEE Wiring regulations.
For unusual locations, special procedures
may be necessary. BS6798 gives detailed
guidance on this aspect.
Condensate Discharge
The condensate discharge hose from the
boiler must have a continuous fall of 2.5°
and must be inserted by at least 50mm into a
suitable acid resistant pipe –e.g. plastic waste
or overflow pipe. The condensate discharge
pipe must have a minimum diameter 22mm,
must have a continuous fall and preferably be
installed and terminated to prevent freezing.
The discharge pipe must be terminated in a
suitable position:
i) Connecting into an internal soil stack (at
least 450mm above the invert of stack). A trap
giving a water seal of at least 75mm must
be incorporated into the pipe run, there also
must be an air beak upstream of trap.
ii) Connecting into the waste system of
building such as a washing machine or sink
trap. The connection must be upstream of
the washing machine/sink. If the connection
is downstream of the waste trap then an
additional trap giving a minimum water seal of
75mm and an air break must be incorporated
in the pipe run, as above.

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iii) Terminating into a gully, below the grid
level but above the water level
iv) Into a soakaway
Note:
If any condensate pipework is to be installed
externally then it should be kept to a minimum
and be insulated with a waterproof insulation
and have a continuous fall. The total length
of external pipe used should not exceed 3
meters.
Some examples of the type of condensate
terminations can be found below.
1. Internal termination of condensate drainage
pipe to internal stack.
Condensate Discharge
Push t the exible condensate pipe into the
outlet spigot on the appliance. Cut to length
and locate outlet into a tundish
2. External termination of condensate drainage
pipe via internal discharge branch (e.g. sink
waste) and condensate siphon.
3. External termination of condensate
drainage pipe via internal discharge branch
(e.g. sink waste-proprietary tting).

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4. External termination of condensate drainage
pipe via condensate siphon
Installing the boiler
Please check that you are familiar with the
installation requirement before commencing
work.
The installation accessories described in
the following list are included in the boiler
package:
Boiler Box:
- Gas boiler
- Connection valves
Flue Box:
- coaxial 1m terminal ue
- 90°C coaxial elbow
Installation bag:
- Hanging plate
- Expansion screws (used to fix the hanging
plate)
Accessory bag:
- User’s manual, Installation manual and
warranty card
- Sealing cushion
- Paper template
Installation noise
Please comply with the relevant national or
region standard or guidelines when installing
the wall mounted gas boiler. The noise of
installation should be controlled within the
local standard requirement, pay special
attention to the any noise control time zones.
Appliance should be installed on a flat,
firm wall that can support the weight of the
boiler, also ensure the wall surface is not
combustible.

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Opening the box
The appliance was packed in a hard box with
foam protection. Pay attention that the arrow
in the carton should be down when opening
the box. (Refer to below diagram)
Position the boiler on the wall
Fix the paper template to the wall to ensure the
correct position of the hanging bracket and the
ue hole.
Drill and plug the wall and secure the hanging
bracket using the screws provided ensure the
hanging bracket is level.
Remove all the protective packaging from the
gas boiler and place the boiler on the hanging
bracket.
Installation of pipework
Remove the caps and valves from the boiler.
Connect the valves to the boiler has shown
below and the valves to the heating system.
We would recommend that
a street elbow is used when
connecting the Cold water,
Domestic hot water, gas, central
heating inlet and outlet valves to
the external pipe work.