INSTALLATION INSTRUCTIONS AND USER GUIDE
MATTIRA
DIGITAL MODULATING ELECTRIC BOILERS
FOR CENTRAL HEATING AND DOMESTIC HOT WATER
MAC15
Please read these instructions before installing or using this appliance for the first time.
These instructions must be followed for the safe installation of the boiler.
Any problem, fault or damage caused by the non-observance of these instructions will not be covered under the
manufacturer’s warranty.
This manual should be retained with the appliance by the user for future reference.
INDEX
1 IMPORTANT
3
8 MAIN COMPONENTS LIST
31
2 SAFETY
3
9 MAINTENANCE & CARE
32
3 INTRODUCTION
3.1 DESIGN & OPERATION
3.2 PRINCIPLE COMPONENTS
3.3 KEY TO COMPONENTS
3.4 SAFETY DEVICES
3
3
4
4
4
10 ENVIRONMENTAL INFORMATION
32
11 TECHNICAL DATA
33
12 DECLARATION OF CONFORMITY
34
4 INSTALLATION
4.1 GENERAL REQUIREMENTS
4.2 UNPACKING & CONTENTS
4.3 LOCATION
4.4 DIMENSIONS & CONNECTIONS
4.5 CLEARANCES
4.6 MOUNTING BRACKET
4.7 TYPICAL INSTALLATION LAYOUT
4.8 WATER CONNECTIONS - GENERAL
4.9 (a) CENTRAL HEATING CONNECTIONS,
DESIGN & REQUIREMENTS
4.9 (b) PUMP DUTY
4.9 (c) DHW HEATING CONNECTIONS,
DESIGN & REQUIREMENTS
4.10 ELECTRICAL CONNECTIONS
5
5
6
6
6
7
7
8
8
13 PRODUCT FICHE
35
14 WIRING DIAGRAMS
36
15 WARRANTY
38
16 INSTALLATION COMMISIONING
CHECKLIST
16.1 HOT WATER STORAGE SYSTEM
16.2 CENTRAL HEATING SYSTEM
16.3 ELECTRICAL INSTALLATION
39
39
40
41
17 MAINTENANCE CHECKLIST
42
18 SERVICE RECORD
43
9
10
11
19
5 COMMISIONING
5.1 INSTALLATION PARAMETERS
5.2 LIMITING BOILER MAXIMUM OUTPUT
5.3 HEATING SYSTEM FLUSHING
5.4 HEATING SYSTEM INITIAL FILLING
5.5 PUMP CHECKING & VENTING
5.6 FILLING DOMESTIC HOT WATER
5.7 MORE INSTALLATION DATA
21
21
22
23
23
23
23
23
6 OPERATING THE BOILER
6.1 INITIAL SWITCHING ON
6.2 CONTROL PANEL DESCRIPTION
6.3 DOMESTIC HOT WATER OPERATION
6.4 CENTRAL HEATING OPERATION
6.5 ANTI-FREEZE MODE
6.6 USER PARAMETERS
6.7 HEATING MODULATION FEATURE
6.8 LEGIONELLA PROTECTION
6.9 AUTO HEATING REGULATION
6.10 BLOCKING THE CONTROLS
6.11PUMP ANTI-SEIZE FUNCTION
24
24
24
23
25
26
26
27
27
27
28
28
7 TROUBLE SHOOTING
7.1 POSSIBLE FAULTS & SOLUTIONS
7.2 OVERHEAT LOCK-OUT & RE-SETTING
7.3 HEATING FLOW SWITCH – E3 ERROR
7.4 CHECKING RATED HEAT OUTPUT
29
29
30
31
31
2
1 IMPORTANT
The installation must be performed in accordance
with current IEE Wiring Regulations, Building
Regulations, Water Fitting Regulations (England &
Wales) or Water Byelaws (Scotland) and all
relevant British Standards.
o This appliance is destined to be permanently
connected to a fixed installation. The power circuit of
the boiler must incorporate an omni-polar cut-off
switch with a separation between the contacts of at
least 3 mm.
o The electricity supply circuit must incorporate a
Residual-Current Device.
o This boiler must be earthed.
o All the models incorporate different safety elements.
If one or more of them are activated, consult the
section 7 TROUBLE SHOOTING.
o In time, the presence in the air of smoke, dust and
pollution may stain the walls and areas close to the
appliance.
o Any improper use is forbidden.
o Do not install the boiler in rooms prone to frost.
The following installation instructions are intended to
guide the competent person throughout the entire
installation process.
The boiler’s guarantee does not cover any damage caused
by non-observance of any of these instructions.
These installation instructions and user’s guide must be
conserved and given to any new user.
Connections can come loose in transit, and all should be
checked before installation.
The symbols used in the text are explained below:
WARNING
This indication shows the possibility
of causing death from electric shock.
WARNING
This indication shows the
possibility of causing death or
serious injury.
CAUTION
i
3 INTRODUCTION
3.1 DESIGN & OPERATION
This indication shows the
possibility of causing injury or
damage to properties only.
The Gabarron MATTIRA COMBI boilers are electrically
heated combi boilers providing wet central heating through
a standard radiator system (or underfloor system with
special kit) and domestic hot water (DHW) delivered from
an integral unvented store at mains water pressure.
Symbol for useful information.
2 SAFETY
This appliance is not destined for use by anyone
(including children) with reduced physical, sensorial
or mental capacities or those who do not know how
to use the appliance, unless they are supervised or
instructed by a person responsible for their safety.
o Check that the voltage on the indicator plate of the
boiler coincides with the voltage of the mains circuit
to which it is going to be connected.
o The use of these boilers in the presence of gases,
explosives or inflammable objects is prohibited.
o The air inputs and outputs of the boiler ensure its
correct operation and protect it from over-heating.
They must never be covered.
o This boiler must be disconnected from the mains
electricity before carrying out any internal repairs.
o
The boiler must be installed in such a manner that
the switches or other controls cannot be touched by
anyone who is using the bath or shower.
Outputs are from 2 to 15kW. Maximum output can be
adjusted to match the heat requirement of the system or
the limitations of the incoming available power supply.
Operation is possible on three phase 3x400V+N or single
phase 230V - 50Hz.
o
The boilers are designed for internal installation on a
suitable wall with consideration for the total weight of the
appliance when full.
A digital control panel provides user control to adjust the
temperatures of heating and hot water. A power
modulation feature automatically adjusts the heating output
to the demand to ensure economic operation.
A suitable external time clock/room thermostat
should be fitted (not supplied).
An adjustable thermostatic blending valve
should be fitted on the hot water supply to
ensure a safe and economic supply of hot water
(supplied).
3
All components for sealed system central heating are builtin. A suitable filling loop should be fitted externally
to comply with water supply regulations (not
supplied).
1 DHW resistance.
2 Drain valve.
3 Temperature sensor location.
4 Connection block.
5 Main contactor.
6 DHW 7 bar relief valve.
7 Insulated tank 50L.
8 Anti-electrolysis DHW hose.
9 DHW expansion vessel 3L.
10 Automatic purge.
11 DHW power electronic PCB
12 Heating power electronic PCB
13 Heating flow detector.
14 Heating expansion vessel 6L.
15 Circulation pump.
16 Insulated heating header tank.
17 Heating resistance.
18 Heating safety thermal limit switch.
19 ON / OFF switch.
20 Heating 3 bar relief valve.
21 Pressure gauge.
22 DHW safety thermal limit switch.
23 Main electronic PCB.
Heating and hot water functions will operate
independently but not simultaneously, with priority always
to hot water production unless this function is not
selected.
3.2 PRINCIPLE COMPONENTS
• Insulated steel boiler unit with immersed stainless steel
elements INCOLOY800.
• 50 L stainless steel domestic hot water store with CFC
free insulation and immersed stainless steel elements
INCOLOY800.
• Fully integrated electronic control boards featuring
temperature control and modulation function, pump
over-run, anti-seize and frost protection. Self-diagnostic
fault information.
• Sealed system heating components: circulating pump,
6L expansion vessel, auto air-vent, 3 bar relief valve,
pressure gauge, water flow switch and temperature
limit safety thermostat.
• Unvented hot water components: 7 bar relief valve, 3L
expansion vessel, non-return valve and temperature
limit safety thermostat.
• Silent TRIAC power switches.
• Digital control board.
3.4 SAFETY DEVICES
Safe operation under various conditions is ensured by the
following controls fitted inside the boiler:
o
3.3 KEY TO COMPONENTS
o
o
o
o
4
Water flow switch that monitors water flow in the
heating system and will prevent operation in case of a
blockage, if the system flow rate is below the
permitted level, error E3 will appear. Installation of a
system by-pass may be necessary (see 7.3 HEATING
SYSTEM FLOW SWITCH – E3 ERROR & SYSTEM
BY-PASS REQUIREMENTS).
Hot water high limit safety thermostat will prevent
operation if the temperature exceeds 80ºC. It
requires re-setting manually.
Heating system high limit safety thermostat will
prevent operation if the temperature exceeds 100ºC.
It requires re-setting manually.
Hot water pressure relief valve will discharge to
relieve excess pressure at 7 bar. (Requires piping to a
safe external discharge point.)
Heating system pressure relief valve will discharge to
relieve excess pressure at 3 bar. (Requires piping to a
safe external discharge point.)
4 INSTALLATION
In order to ensure the successful installation
and operation of your Gabarron boiler, please
consider the following points before commencing.
A bypass circuit (min 2m recommended) incorporating an
automatic bypass valve must be installed on all central
heating systems where TRV's are fitted to every radiator.
Note - A bypass circuit incorporating an automatic
bypass valve is recommended for all installations.
The correct heat requirement for the dwelling should be
calculated.
SITING THE BOILER
HOT WATER SYSTEM
IMPORTANT PRE- INSTALLATION POINTS
i
Competency to install unvented hot water systems is
required and must be in accordance with section G3 of the
Building Regulations (England & Wales), Technical Standard
P3 (Scotland) and Building Regulation P5 (Northern
Ireland). Compliance can be achieved via a Competent
Person Self Certification Scheme or by notification of
installation to the Local Authority Building Control
Department.
Manufacturer’s notes must not be taken as over-riding
statutory obligations.
Any existing system and controls (e.g. shower) must be
suitable to operate at mains water pressure.
The incoming water main pressure and flow must be
sufficient for requirements.
In all installations, the group combination inlet valve
(supplied), which incorporates a pressure reducer must be
installed on the cold water mains supply to the boiler. The
boiler safety valves require piping to a safe discharge point
as per the Building Regulations.
In hard water areas it is mandatory to protect the boiler
against lime scale formation.
WARNING Wall and fixings must be suitable to
support the total weight; MATTIRA MAC boiler
when full is 125 kg.
Allow sufficient clearance and access for operating,
maintenance and repair work.
Boiler must be protected from any water, moisture or
dampness.
Where installations are in a bathroom, the installation
must comply with the relevant electrical regulations.
Boiler electrical protection rating is IP20/IP2X. This boiler
is not designed to be installed in the open air.
The boiler must be installed in the upright position.
ELECTRICAL POWER SUPPLY & WIRING
WARNING Before carrying out any work inside
the boiler and obtaining access to terminals, all
supply circuits must be disconnected.
WARNING Earth the appliance. If the appliance
is not earthed, it may hold voltage if a defect
occurs.
4.1 GENERAL REQUIREMENTS
Competency for electrical installation is required.
The power supply must meet the capacity for the heat
output required plus all other appliance that may be
supplied.
The cable, MCB and RCD must be of sufficient capacity to
carry the required load.
i
The installation should be carried out by a person certified
as competent for the installation of unvented hot water
systems in accordance with current building regulations.
Installation should also be in accordance with the relevant
British Standards and Codes of Practice including the
following:
Boiler is supplied set at maximum output and must
be adjusted to suit the incoming supply before being
switched on. (See 5.2 LIMITING BOILER
MAXIMUM OUTPUT).
BS 5449 Forced circulation hot water systems
BS 5546 Installation of hot water supplies for domestic
purposes
BS 6700 Design, installation, testing and maintenance of
services supplying water
BS7074 Application, selection and installation of expansion
vessels and ancillary equipment for sealed water
systems.
BS 7593 Code of Practice for treatment of water in heating
systems
BS 7671 Requirements for electrical installations, IEE
Wiring Regulations
HEATING SYSTEM & CONTROLS
Any existing system must be suitable for sealed system
operation at up to 3bar pressure and will require
flushing/cleansing in accordance with the Building
Regulations.
Any new heating system must be flushed and cleansed in
accordance with the Building Regulations.
A combi filling loop, isolation valves and drain point are
required.
A time clock/room thermostat should be installed
(Necessary to activate automatic power modulation).
5
4.2 UNPACKING & CONTENTS
- Wall bracket with template.
- Boiler.
- Documentation.
- Bag with parts and fittings.
i
Dispose of the cardboard packaging at a cardboard recycling site. Observe national regulations.
4.3 LOCATION
WARNING INSTALL UPRIGHT ON A WALL SUITABLE TO SUPPORT THE TOTAL WEIGHT OF THE
BOILER WHEN FULL OF WATER – 125 kg.
The location should be clean and dry with no presence of gases, explosives or
flammable objects.
It is not suitable for installation outside and should be protected from moisture
and frost.
The boiler must be sited so that the boiler and controls are not accessible to any
persons whilst using a bath or shower and there should be no possibility of water
dripping or splashing onto the boiler or controls.
Electrical safety regulations for clearances must be followed if installed in a
bathroom or shower area.
The boiler has an electric protection rating of IP20/IP2X.
Where possible the boiler should be sited to minimize the pipe distance to hot
water outlets.
The power supply cable should be carefully routed and secured and provision
made for a suitable isolation switch and MCB/RCD.
4.4 DIMENSIONS & CONNECTIONS
A
B
C
D
E
F
Safety valve drain DHW.
Electrical connection
Cold water input ½”
DHW outlet ½”
Heating return ¾”
Heating flow ¾”
6
4.5 CLEARANCES
A: 75 mm
B: 10 mm
C: 200 mm
The clearances around the boiler as shown above must be observed for correct operation.
A minimum of 200mm clearance must be maintained underneath the boiler to allow replacement of the heating elements if
required. A minimum of 500 mm clearance must be maintained in front of the boiler to enable easy access for servicing.
Ensure sufficient space to make all water connections including the outlet pipes for the heating and hot water safety valves
which should be routed to a suitable discharge point.
4.6 MOUNTING BRACKET
Mark the hole positions using the wall bracket as a template per the diagram.
Fit bracket securely onto wall before lifting appliance into position. Drill the holes and fit the bracket ensuring it is level using
suitable high strength screws, with appropriate plugs or fixings, minimum M10 size.
HANDLING BEFORE INSTALLATION
The Gabarrón Mattira Boiler must be handled with care and
stored the correct way up in a dry place. Any manual
handling/lifting operations will need to comply with the
requirements of the Manual Handling Operations Regulations
issued by the H.S.E.
The appliance can be moved using a sack truck on the rear face
although care should be taken and the route should be even. In
apartment buildings containing a number of storeys we would
recommend that the appliances are moved vertically in a
mechanical lift. If it is proposed to use a crane, expert advice
should be obtained regarding the need for slings, lifting beams etc.
Always use assistance if required. Wear suitable cut resistant gloves when handling the appliance.
Ensure safe lifting techniques are used. Do not lift the appliance by attached pipe-work or components.
When lifting the boiler ensure that the fixing elements and the wall have a sufficient load-bearing capacity. Check the quality
of the wall.
7
4.7 TYPICAL INSTALLATION LAYOUT
1. DHW P&T Relief Valve (to drain via tundish)
2. Filling Loop
3. Sealed heating system P&T relief valve (to drain)
4. Full bore isolation valve with drain off above
5. Bypass Circuit incorporating 22mm auto bypass valve
6. Thermostatic mixing valve
7. NRV
8. Group combination valve with drain off above
9. ERV from Group combination valve (to drain)
10. Full bore isolation valve
11. Anti-electrolysis DHW hose.
4.8 WATER CONNECTIONS - GENERAL
CAUTION All connections to the boiler must be carried out respecting the correct flow, return, hot, cold and
discharge indicators that are labelled on the boiler and also shown in this manual.
CAUTION When tightening or loosening threaded connections, always use suitable tools such as open-end spanners.
Do not use pipe wrenches, extensions or unsuitable tools that may cause damage or water leaks.
8
4.9 (a) CENTRAL HEATING CONNECTIONS, DESIGN & REQUIREMENTS
This boiler is designed for fully pumped sealed systems only.
Treatment of Water Circulating Systems
All recirculatory water systems will be subject to corrosion unless an appropriate water treatment is applied. This means that
the system efficiency will deteriorate as corrosion sludge accumulates within the system. This causes a risk to the pump and
valves and can result in boiler noise and circulation problems. When installing heating systems, flux will be evident in the
system which can lead to damage of boiler and system components.
All systems must be thoroughly drained and flushed out using corrosion inhibitors and cleansing agents/descalers that are
compliant with BS7593 requirements. In all cases, they should be used following the manufacturer’s instructions.
Failure to flush and add an inhibitor to the system will invalidate the manufacturer’s warranty of the boiler.
It is also important that the inhibitor concentration is checked for correctness after installation, modification and during every
service in accordance with the relevant manufacturer’s instructions. Test kits specifically for this purpose are available from
inhibitor stockists.
Heating Flow & Return
These connections are ¾ “. Service valves should be installed in the pipework directly below the boiler with drain-off points
above to allow the boiler to be isolated for maintenance without the need to drain the entire system. The valves should be of
sufficiently large bore so not to restrict the heating circulation.
The boiler is not suitable for single pipe heating systems, only a twin-pipe heating system should be used.
It is recommended that a minimum of 2m of 22mm diameter pipework is present to/from the flow and return connections
on the boiler as reduction in size prior to this may result in the system flow rate being below the minimum level required,
resulting in error E3.
Drain Point
As detailed above, drain points should be installed directly above the service valves on the flow and return pipe work to
enable the removal of water from within the boiler for servicing and maintenance, preventing the need to drain the entire
system.
A drain point must also be fitted at the lowest point of the system. It is not acceptable to drain the boiler through the safety
valve as debris and deposits will prevent correct operation of the valve.
Heating System By-pass
The heating water flow switch requires a minimum flow rate through the boiler of 7 L/min for correct operation. Systems
fitted with Thermostatic Radiator Valves on every radiator must have a bypass circuit installed.
The bypass circuit must be in 22mm pipe work, is recommended to have at least 2m of continuous pipework and must
incorporate an automatic bypass valve. This is required in order to maintain sufficient flow through the boiler should all of
the valves be closed. (See 7.3 Heating System Flow Switch - E3 Error & System Bypass Requirements).
To alleviate potential flow issues, especially on smaller systems, it is recommended that all installations be fitted with a bypass
circuit as described above.
System Expansion
An integral 6 L expansion vessel provides for expansion of the heated system water under normal conditions however a
system with larger volumes of water may require extra expansion capacity to be provided.
9
Filling Loop
A combi filling loop is required for filling of the heating system and replacing water lost during servicing or bleeding and
should be installed close to the boiler. The loop should be as shown in the diagram and comply with current Water Supply
Regulations. The temporary connection should be removed after filling and the valves sealed with suitable caps.
Heating
system
valve
valve
Mains water
supply
Filling loop
i
Ensure that all radiators have air release (bleed) valves installed and that high points in pipe work have an air release
valve (automatic type recommended) installed.
Pressure Relief Valve
The pressure relief valve is set at 3 bar, subsequently all fittings and pipework, etc. must be suitable for pressures in excess of
3 bar and temperature in excess of 100ºC.
The pressure relief valve has a ½” BSP thread for connection via a suitable connector to copper tube and the pressure relief
discharge pipe should not be less than 15mm diameter.
The pressure relief discharge pipe must run continuously downward and discharge outside of the building, preferably over a
drain.
The discharge pipe should be routed in such a manner that it does not present a hazard to occupants or cause damage to
wiring or electrical components.
If the discharge pipe does not terminate over a drain then, the end of the pipe should terminate facing down and towards the
wall.
Under no circumstances should the discharge be above a window, entrance or other public access.
The installer must give consideration to the possibility that boiling water / steam could discharge from the pipe.
If the discharge pipe is to join a common discharge pipe, it must have its own tundish and increase to 22mm dia.
prior to connection to the common discharge pipe.
If the discharge is to join into the common discharge from an unvented cylinder then, it must follow the guidance
of G3 of the Building Regulations.
All installations must be fitted in accordance with all local regulations in force at that time. Failure to comply with these
regulations will invalidate the manufacturers’ warranty.
4.9 (b) PUMP DUTY
Boiler equipped with a high efficiency circulation pump, with a maximum impulsion height of 6.2 m and a maximum flow of
3.3 m³ / h.
There are selectable operation modes with the built-in knob. You can select constant operating speeds I, II and III.
A LED indicator informs about the operating status of the pump
-
Green: correct operation.
Green / red flashing: Lower voltage U<180V; overvoltage U>253V; Module overheating
Red flashing: pump blocked.
10
4.9 (c) DHW CONNECTIONS, DESIGN & REQUIREMENTS
CAUTION: This boiler incorporates a 50 litre unvented hot water cylinder. Installation of this appliance must be
carried out by a Competent Person and in accordance with the relevant regulations.
In every installation it is mandatory for the Group combination valve to be installed on the mains cold water supply to the
boiler. This will protect the boiler and prevent constant opening of the 7 bar relief valve (The Group combination valve is
comprised of a pressure reducing valve, a pressure relief valve, a check valve, a filter and a balanced cold water outlet all
included in a single valve. These inlet control groups are designed to control the pressure on the mains supply to the integral
unvented hot water cylinder).
The installation of the thermostatic blending valve (supplied) is recommended, as per the diagram shown in 4.7 to ensure a
safe and economic supply of hot water.
Maximum inlet pressure to Pressure reducing valve
Operating pressure (PRV setting)
Expansion vessel charge pressure
Expansion relief valve setting
Opening pressure of P & T Relief Valve
Opening temperature of P & T Relief Valve
Energy cut-out thermostat setting
Immersion heater rating
12 Bar
3 Bar
3 Bar
4.75 Bar
7 Bar
92ºC – 95ºC
80ºC
2-15kW depending upon setting
All cylinders are manufactured in accordance with the requirements of BS EN 12897.
The tundish must be positioned so that it is visible to the occupant and is away from electrical devices.
Components supplied with Gabarrón Mattira electric combi boiler (incorporating a 50 litre unvented
cylinder):
• Cold water inlet PRV combination valve/expansion relief (supplied loose)
• Pressure and temperature relief valve
• Control thermostat
• Energy cut-out thermostat
• Tundish (supplied loose)
• Immersion heaters including control and cut out thermostats
• Expansion vessel
• Adjustable thermostatic blending valve (supplied loose)
• Technical/user product literature
In any situation where the volume of heated pipework (eg. secondary circulation pipes or manifold pipework
for multiple units) exceeds 10 litres, then an additional expansion vessel must be fitted to accommodate the
extra expansion volume.
CAUTION: Modifications should not be made to this product. Replacement parts, including immersion heaters,
should be purchased from Elnur UK Limited, or agents approved by them.
Unvented hot water storage vessels need regular routine checks, and these are detailed below. It is for this reason that this
manual must always be left with the Gabarrón Mattira combi boiler.
It is essential that these checks be carried out at the time of boiler maintenance by a qualified installer:
1. Manually open the relief valves in turn, and check that water is discharged from the valves and runs freely through the
tundish and out at the discharge point. Ensure that the valves re-seat satisfactorily. (Note – the water may be very hot).
2. It is important to check that the discharge pipework is carrying the water away adequately. Check for blockages etc. if it is
not.
3. Turn the mains water off and remove and clean the strainer element in the Pressure Reducing Valve.
4. Check the charge pressure in the expansion vessel and repressurise if required.
5. Re-fill the system and ensure that all relief valves have re-seated.
6. The Service Record should be updated at each service.
11
7. Check the water pressure downstream of the combination valve is 3 bar in static condition.
8. Check and if necessary, descale the heat exchanger in hard water areas ie. above 200ppm (mg/l).
Note:
The cylinder is factory fitted with a temperature & pressure relief valve that must not be used for any other purpose or
removed.
The cylinder is factory fitted with immersion heaters with thermal cut outs. Immersions without thermal cut outs must not
be fitted.
Gabarrón Mattira combi boilers incorporate an unvented hot water storage cylinder, manufactured in the latest high quality
duplex stainless steel. They are designed to provide mains pressure hot water and are supplied as a package which complies
with Section G3 of the Building Regulations. The appliance is extremely well insulated using high density HCFC free foam
insulation with an ozone depleting potential (ODP) of zero and a global warming potential (GWP) of 1. It is fitted with all
necessary safety devices and supplied with all the necessary control devices to make installation on site as easy as possible.
The Gabarrón Mattira combi boiler with integral unvented cylinder is available in one variant:
1. Gabarrón Mattira combi boiler c/w Integral Direct Unvented Cylinder - For providing central heating and hot
water heated by electricity.
Gabarrón Mattira combi boiler incorporates an electrically heated, unvented hot water storage cylinder designed primarily
for use with on peak electrical supplies. It is supplied fitted with 3 x 3kW & 3 x 2kW immersion heaters which are CE
approved for safety.
Heat Up Recovery Times
Please refer to section 11 TECHNICAL DATA
Typical Layout
Please refer to section 4.7 TYPICAL INSTALLATION LAYOUT
Part G3 loose components supplied in boiler box
A. Combination inlet group incorporating pressure reducing valve, strainer, check valve, balance cold take off point,
expansion relief valve and expansion vessel connection points (expansion vessel connection point blanked off in normal
installation as boiler has integral expansion vessel incorporated).
B. Tundish
Pipework to be supplied and fitted by installer.
12
General Design Considerations
The wall chosen for the boiler should be level and capable of supporting the weight of the unit when full of water as shown in
Section 4. The discharge pipework for the safety valves must have a minimum fall of 1:200 from the unit to a safe discharge
point. All exposed pipework and fittings on the boiler should be insulated, and the unit should NOT be fixed in a location
where the contents could freeze.
In new systems, pipes should be insulated to comply with building regulations, the maximum permissible heat loss is indicated
in the table below, and labelled accordingly as follows:
i. Primary circulation pipes for domestic hot water circuits should be insulated through their length, subject only to practical
constraints imposed by the need to penetrate joists and other structural elements.
ii. All pipes connected to hot water storage vessels, including the vent pipe, should be insulated for at least 1 metre from
their points of connection to the cylinder (or they should be insulated up to the point where they become concealed). In
replacement systems, whenever a boiler or hot water storage vessel is replaced in an existing system, any pipes that are
exposed as part of the work or are otherwise accessible should be insulated as recommended for new systems or to some
lesser standard where practical constraints dictate.
Pipe outside diameter
15mm
22mm
28mm
35mm
Maximum heat loss
7.89W/m
9.12W/m
10.07W/m
11.08W/m
Insulation of pipework
Further guidance on converting heat loss limits to insulation thickness for specific thermal conductivities is available in TIMSA
“HVAC guidance for achieving compliance with Part L of the Building Regulations”.
The Gabarrón Mattira combi boiler is designed for use with single bathroom properties only and is capable of
a delivery up to 12 L/min hot water flow rate.
Mains Water Supply
Existing properties with a 15mm supply will be satisfactory provided the local mains pressure is good. For new properties,
the communication and service pipe into the dwelling should be a minimum of 22mm (usually in the form of a 25mm MDPE
supply). The optimum performance is achieved if the inlet pressure is 3 bar dynamic. However, the Gabarrón Mattira combi
boiler will function with lower inlet pressures, but this will reduce the performance. For optimum performance, 15 L/min
incoming mains flow should be present; however the Gabarrón Mattira combi boiler will work at lower flow rates, although
performance will be affected. Normally, the Gabarrón Mattira combi boiler provides in excess of 10 L/min in most
conditions. Flow rates for ALL mains pressure systems are subject to district pressures and system dynamic loss. Particularly
on larger properties, the pipe sizes should be calculated in accordance with BS EN 806-3:2006 and BS 8558:2011.
Mains Water Connection
A ½” BSP thread is provided on the boiler for connection to the incoming mains cold water supply. The installation of a full
bore isolation valve on the mains water supply to the boiler is required (in close proximity to the boiler location). An internal
non-return valve within the Group combination valve prevents possible back-flow should the water main fail.
13
General Restrictions
a. The highest hot or cold water draw off point should not exceed 10m above the Pressure Reducing Valve.
b. An ascending spray type bidet or any other appliance with a Class 1 back-syphonage risk requiring a type A air gap should
not be used.
c. The Gabarrón Mattira combi boiler is only designed to be a self-contained unit powered by electric via the main incoming
terminal block and not by or in conjunction with any other system or source.
d. The Gabarrón Mattira combi boiler should not be used in a situation where maintenance is likely to be neglected.
e. If the supply to the mixer fittings (other than a dual outlet type) is not taken from the balanced supply the system will
become over pressurized and cause the pressure relief valve to discharge. Over time this could also cause the premature
failure of the appliance itself which will not be covered by the warranty.
f. In larger properties with a number of bathrooms/en-suites (not a recommended installation option) and/or long pipe runs,
we would recommend that the balance cold supply is provided with its own pressure reducing valve and is not taken from
the balanced cold connection on the combination valve. In this case, it will also be necessary to fit a small expansion vessel
on the balanced cold water system to accommodate the pressure rise caused by the increase in temperature of the
balanced cold water.
g. Check the performance requirements of the terminal fittings with regard to flow/pressure are suitable.
h. In relation to potable water systems, additional expansion vessels, if required, shall be installed in a vertical orientation and
located so that the length of the connecting pipe work is kept to a minimum.
Shower Fittings
Aerated taps are recommended to prevent splashing. Any type of shower mixing valve can be used as long as both the hot
and cold supplies are mains fed. However, all mains pressure systems are subject to dynamic changes particularly when other
hot and cold taps/showers are opened and closed, which will cause changes in the water temperature at mixed water outlets
such as showers. For this reason and because these are now no more expensive than a manual shower we strongly
recommend the use of thermostatic showers with this appliance. These must be used in 3 storey properties where the
impact on pressure/temperature of opening another tap in the system is greater than normal. The shower head provided
must also be suitable for mains pressure supplies and not of high flow rate design in excess of 15 L/min mixed flow rate.
Pipe Layout
In all mains pressure installations it is important to remember that the incoming cold supply must be shared between all
terminal fittings. It is important that a 22mm supply is brought to the appliance. A minimum of one metre of smaller diameter
pipework, or flow restrictors, should be provided on the final connection to all outlets so as to balance the water available. In
any event the distribution pipework should generally be in accordance with BS_EN806-1 to 5.
Plastic Pipework
This appliance is suitable for use with plastic pipework as long as the material is recommended for the purpose by the
manufacturer and is installed fully in accordance with their recommendations.
Note:
Cold supplies to single taps must be taken from the mains cold water system.
Cold supplies to mixer taps must be taken from the balanced cold water connection on the Group combination valve.
Hot Water Outlet
A ½“connection is provided for connection to 15mm pipe. To ensure economic operation the pipe run between the boiler
and taps should be in not more than15 mm dia. pipe and the distance as short as possible. The pipe-work should be insulated
to reduce heat loss.
The anti-electrolysis DHW hose provided must be installed first of all on the hot water outlet.
The installation of the hot water outlet pipe should be in accordance with 4.7 TYPICAL INSTALLATION LAYOUT
14
Discharge Pipework
CAUTION: Safety Valve Connections
The 7 bar pressure relief valve on the domestic hot water store may discharge boiling water and should be piped to a safe
but visible drain point e.g. a gulley where any discharge will not cause damage or injury.



























Typical Discharge Pipe Arrangement
CAUTION: A tundish (supplied) should be incorporated close to the appliance where any discharge will be visible
but not hazardous. The pipe-work should have a continuous fall to the drain and should be of minimum 28mm dia. In all
instances, installation of the discharge pipework must be in accordance with G3 of the Building Regulations and installed by a
Competent Person.
The information below is taken from Approved Document G3 of the Building Regulations and is provided to assist with the
design and installation of the discharge pipework. However, the information is not exhaustive and reference should always be
made to Approved Document G3 of the Building Regulations. The final decision regarding any arrangements rests with
Building Control and it is recommended that their advice is sought if you have any concerns regarding this aspect of the
installation.
The two safety valves will only discharge water under fault conditions. When operating normally water will not be
discharged.
Table 1 – Sizing of copper discharge pipe “D2” for common temperature relief valve outlet sizes
Refer to paragraphs 3.5, 3.9, and 3.9(a) of Approved Document G
Valve
Outlet
Size
G1/2
Minimum size if
discharge pipe
D1*
15mm
G3/4
22mm
G1
28mm
Minimum size of
discharge pipe
D2* from tundish
22mm
28mm
35mm
28mm
35mm
42mm
35mm
42mm
54mm
Maximum resistance allowed,
expressed as length of straight
pipe (i.e. no elbows or bends)
Up to 9m
Up to 18m
Up to 27m
Up to 9m
Up to 18m
Up to 27m
Up to 9m
Up to 18m
Up to 27m
15
Resistance created by
each elbow or bend
0.8m
1.0m
1.4m
1.0m
1.4m
1.7m
1.4m
1.7m
2.3m
Pressure & Temperature/expansion Relief Valve Pipework
The tundish should be vertical, located in the same space as the unvented hot water storage system and be fitted as close as
possible and within 600mm of the safety device e.g. the temperature relief valve. The tundish must be positioned away from
any electrical devices.
The discharge pipe (D2) from the tundish should terminate in a safe place where there is no risk to persons in the vicinity of
the discharge, be of metal (or a material capable of conveying water/steam at 100ºC) and:
a) Be at least one pipe size larger than the nominal outlet size of the safety device unless its total equivalent hydraulic
resistance exceeds that of a straight pipe 9m long, i.e. discharge pipes between 9m and 18m equivalent resistance length
should be at least two sizes larger than the nominal outlet size of the safety device, between 18 and 27m at least 3 sizes
larger, and so on. Bends must be taken into account in calculating the flow resistance. Refer to the table and the worked
example.
An alternative approach for sizing discharge pipes would be to follow BS EN 806-2:2005 Specification for design installation,
testing and maintenance of services supplying water for domestic use within buildings and their curtilages.
b) Have a vertical section of pipe at least 300mm long, below the tundish before any elbows or bends in the pipework.
c) Be installed with a continuous fall.
d) It is preferable for the discharge to be visible at both the tundish and the final point of discharge but where this is not
possible or practically difficult there should be clear visibility at one or other of these locations. Examples of acceptable
discharge arrangements are:
1. Ideally below the fixed grating and above the water seal in a trapped gulley.
2. Downward discharges at a low level; i.e. up to 100mm above external surfaces such as car parks, hard standings,
grassed areas etc. are acceptable providing that where children play or otherwise come into contact with discharges, a
wire cage or similar guard is positioned to prevent contact whilst maintaining visibility.
3. Discharges at a high level; e.g. into metal hopper and metal down pipe with the end of the discharge pipe clearly
visible (tundish visible or not) or onto a roof capable of withstanding high temperature discharges of water and 3m
from any plastic guttering systems that would collect such discharges.
4. Where a single pipe serves a number of discharges, such as in blocks of flats, the number served should be limited to
not more than 6 systems so that any installation can be traced reasonably easily. The single common discharge pipe
should be at least one pipe size larger than the largest individual discharge pipe to be connected. If unvented hot water
storage systems are installed where discharges from safety devices may not be apparent i.e. in dwellings occupied by
blind, infirm or disabled people, consideration should be given to the installation of an electronically operated device
to warn when discharge takes place.
Safety
The safety devices supplied or fitted on an Gabarrón Mattira combi boiler are selected for their suitability for the
temperatures and pressures involved. They must not be changed, removed or by-passed and it is essential that only genuine
replacement parts supplied or approved by Elnur UK Limited are used. This includes the immersion heaters, which must
incorporate an energy cut-out. All parts are available to approved installers from Elnur UK Ltd.
Combination Inlet Group Combines elements 1, 2 and 3 below.
1. Pressure Reducing Valve - This must be fixed near the cylinder. The cold water supply to any mixer taps/showers must be
taken from the cold water tapping of this valve to ensure balanced hot and cold pressures. This valve is factory set to
ensure the correct operating pressure for the Gabarrón Mattira combi boiler.
2. Non Return Valve - This is integral with the pressure reducing valve to prevent backflow of hot water towards cold water
draw off points.
3. Cold Water Expansion Relief Valve - This safety device is preset at the factory and will relieve excess cold water pressure
resulting from a fault condition.
Immersion Heaters
These are 3x3kW plus 3x2kW 240V~ heaters and incorporate a thermostat and a manually reset energy cut-out which
operates at 80°C. They have incoloy elements to prolong their life expectancy in aggressive water conditions.
The control thermostat of the immersion heaters for direct heating of our cylinders can be set up to 60°C. During
commissioning the actual temperature that the cylinder reaches when the thermostat(s) operate should be tested and
adjusted so that it achieves a minimum of 60°C. This temperature needs to be achieved on a regular basis.
16
Line Strainer
This is integral within the combination inlet group to reduce the likelihood of contaminants fouling the valve seat.
Following installation this line strainer must be cleaned and replaced. This needs to be carried out on a regular basis as part
of the annual maintenance/service check.
Safety
The immersion heaters are indirectly supplied power via the main boiler terminal block which must be earthed. The main
power supply to the boiler must be isolated from the mains before the cover is removed on every occasion.
Replacement immersion heaters should be obtained from Elnur UK Ltd.
Important
Failure to follow the drain down procedure will invalidate the warranty.
NEVER drain the cylinder of hot water and then close all cylinder inlets and outlets
REASON: As the air remaining in the cylinder cools the pressure inside the cylinder will fall below atmospheric and cause
damage to the cylinder.
NEVER close the cold main and drain the cylinder via any tap connected to it.
REASON: As the air remaining in the cylinder cools the pressure inside the cylinder will fall below atmospheric and cause
damage to the cylinder.
Fitting Blending Valves (thermostatic mixing valves) To the Gabarrón Mattira combi boiler
When fitting a blending valve to the unvented appliances, it is important that the installation does not contravene the
G3, WRC and Health and Safety directives or the manufacturer’s recommendations. If this is the case, then the warranty
should be null & void. The key requirements to comply with these regulations are:
1. Any fitting or material in contact with potable water (e.g. a blending valve) must be approved by WRC or an equivalent
body.
2. Connections or wiring arrangements must not bypass any safety devices.
3. Any expansion due to heating must not be allowed to expand back into the cold mains.
4. The settings of any safety devices must not be tampered with or adjusted.
4.7 TYPICAL INSTALLATION LAYOUT shows the cold water port of the blending valve connected to the balanced cold
water outlet. This arrangement will only be acceptable if a WRAS approved non-return valve is fitted, otherwise, during the
heating cycle, the water will expand back into the mains supply, as the regulating valve must not be relied upon to act as a
check valve under all operating conditions.
Depending upon the characteristics of the blending valve, hot water may also flow from the balanced cold water taps.
It is not permitted for the cold water port of the blending valve to be connected to the mains cold water supply before the
inlet control group. This arrangement is completely unacceptable and illegal because the water is allowed to expand in to
mains cold water supply, the vessel will be charged to the incoming mains supply which may be considerably higher than the
working pressure of the vessel.
Installation Checks
Check the pressure on the air side of the expansion vessel = 3 bar. This must be done when the water in the cylinder is free
to expand in atmospheric pressure or the cylinder and relevant pipe work is empty.
Check that the drain cock is closed, and open all the cold and hot water taps and other terminal fittings. Allow the system to
fill with water, and to run until there is no air left in the system. Close the taps and inspect the system closely for leaks.
Manually open the Relief Valves one by one and check that water is discharged and run freely through the tundish and out at
the discharge point. The pipework should accept full bore discharge without overflowing at the tundish, and the valve should
seat satisfactorily.
In line with good plumbing practice, use with excessive flux should be avoided. When soldering close to the boiler, ensure
flux/solder does not contaminate the cylinder inside, since this can cause corrosion. Flushing should be done performed as
per BS EN 806:4 2010 section 6.2.
Allow the cylinder to heat to normal working temperature, then thoroughly flush the domestic hot and cold water pipework
through each tap.
17
NOTE: If this appliance is to be installed in other than a single domestic dwelling ie. in an apartment block or student flats
etc., the hot and cold water system will need to be disinfected in accordance with BS_EB 806:4 2010 section 6.3 and the
Water Regulations.
Because the Gabarrón Mattira combi boiler cylinder is stainless steel, the use of chlorine as the disinfection agent can cause
damage unless the appliance is adequately flushed and refilled with the mains water immediately on completion of the
disinfection procedure.
Damage caused through a failure to do this adequately will not be covered by the warranty.
IMPORTANT - DRAIN DOWN PROCEDURE
1. Switch off both the boiler and the immersion heater
2. Open the nearest hot tap and run all hot water until cold, then close it
3. Close the incoming cold main at the stop tap
4. Hold open the pressure and temperature relief valve until water stops discharging into the tundish and leave it open
5. Open the cold taps starting from the highest point and working down to the lowest tap, leaving them open
6. When the cold taps have stopped draining, open the hot taps starting from the highest and working down to the lowest
tap
7. Any water remaining in the internal cylinder can then be removed via the cylinder drain point inside the boiler housing
Commissioning
For the reasons mentioned, we recommend the use of a non-chlorine based disinfectant when carrying out disinfection of
systems incorporating these appliances.
Remove the filter from the combination inlet group clean and replace. Refill the system and open all hot taps until there is no
air in the pipe work. ENSURE CYLINDER IS DRAINED PRIOR TO CHECKING OR REMOVING FILTER FROM THE
COMBINATION INLET GROUP.
Allow the cylinder to heat to normal working temperature, and check again for leaks. The pressure relief valve or the P&T
valve should not operate during the heating cycle. If the P&T valve operates before the pressure relief valve due to high
pressure, check that the inlet control group is fitted correctly.
The boiler/heating systems should be filled and commissioned in accordance with good practice following the guidance in BS
7593:2006/the boiler manufacturer’s instructions. This includes adequately flushing the system to remove any debris that may
have been introduced during installation/maintenance.
NOTES
At the time of commissioning, complete all relevant sections of the Checklist located on the inside back pages of this
document.
This must be completed during commissioning and left with the product to meet the Warranty conditions offered by
Elnur UK Ltd.
Your Gabarrón Mattira combi boiler incorporating an unvented cylinder is automatic in normal use, but requires routine
maintenance which is normally carried out at least annually along with the boiler service.
The maintenance must be carried out by a suitably competent tradesperson who is qualified to work on unvented cylinders.
The checks/work needed are listed in the maintenance part of these Instructions.
During commissioning the actual temperature that the cylinder reaches when the thermostat(s) operate should be tested and
adjusted so that it achieves a minimum of 60°C, in order to comply with the Legionella pasteurization requirements.
When initially opening the taps, a small surge in flow may be experienced, which disappears as the pressure in the system
stabilizes. This is quite normal with these types of systems and does not indicate a fault.
In some areas, the water will initially appear cloudy, but will quickly clear when left to stand. This is nothing to be concerned
about and is due to aeration of the water.
18
WARNING - If water is seen flowing through the tundish, this indicates a fault condition which needs action.
If the discharge is hot and continuous, turn the boiler and/or the immersion heaters off, but do not turn off the cold water to
the appliance until the discharge is cold. Note: The discharge may stop by itself as the discharge cools.
If the discharge is cold and intermittent, no immediate action is needed but this indicates a problem with the expansion
vessel.
However, in both cases you must call the registered installer / a suitably qualified, competent tradesperson, advise them that
you have an unvented cylinder and request a maintenance visit.
DO NOT, at any time, tamper in any way with the safety valves or overheat thermostats/wiring.
4.10 ELECTRICAL CONNECTIONS
Connection to Mains Supply
The GABARRÓN MATTIRA COMBI MAC15 boilers must be installed in premises having a system impedance of not more
than 0.25 + j0.25Ω.
The GABARRÓN MATTIRA COMBI MAC15 boilers comply with the technical requirements of BS EN 61000-3-3.
The GABARRÓN MATTIRA COMBI MAC15 boilers must be installed in premises having a service capacity ≥100 A per
phase.
Complete all the pipe-work before connecting the boiler to the electricity supply.
Any re-installation must be performed by qualified electricians.
Ensure that the mains voltage available coincides with that shown on the rating label.
WARNING IMPORTANT: CHECK THAT THE TOTAL POWER SUPPLY TO THE BUILDING HAS
SUFFICIENT LOAD CAPACITY TO SUPPLY THE BOILER AT THE HEAT OUTPUT REQUIRED IN ADDITION TO ALL
OTHER APPLIANCES THAT MAY BE SUPPLIED.
WARNING THE SUPPLY CABLE TO THE BOILER SHOULD BE OF SUFFICIENT SIZE TO CARRY THE LOAD
CAPACITY REQUIRED. IT SHOULD BE WIRED THROUGH A LINKED ISOLATOR SWITCH WITH MINIMUM
CONTACT GAPS OF 3mm IN EVERY POLE AND PROTECTED BY A SUITABLY RATED CIRCUIT BREAKER MCB/RCD
Install the necessary electrical protections as indicated in the current regulations. In the event of these regulations not being
complied with, the manufacturer will not be liable for any bodily injury or material damage that may occur.
WARNING IT IS ESSENTIAL THAT THE BOILER IS PROPERLY EARTHED and the wiring tested to current IEE
regulations.
19
Electrical Supply Sizing
The following table shows the specification for a boiler installed on single phase supply.
Rated output of boiler
4kW
5kW
6kW
7kW
8kW
9kW
10kW
11kW
12kW
13kW
15kW
Supply current
17.4A
21.7A
26.1A
30.4A
34.8A
39.1A
43.5A
47.8A
52.2A
56.5A
*
65.2A
*
20A
25A
32A
32A
40A
50A
50A
50A
63A
63A
80A
2.5mm
4mm
4mm
6mm
6mm
10mm
10mm
10mm
16mm
16mm
16mm
MCB / RCD rating
Minimum cable size
* The standard configuration of the boiler only allows a maximum of 12kW when connected SINGLE-PHASE 230V~.
Connection to Boiler
WARNING Touching live connections can cause serious personal injury.
Before establishing a mains connection switch off the power supply. Secure the power supply against being switched on again.
Mains connection terminals remain live even if the on/off switch is turned off.
The boiler is delivered ready for operation on 3x400V three phase supply. For operation on 230V single phase the supplied
links must be connected across the terminals of the connection block as shown.
Three phase and single phase connection
The terminal connection block is located mid-way up at the front left hand side of the boiler and is accessed after removing
the boiler front panel . The supply cable should be routed to this point through the cable entry point on the left hand bottom
of the boiler.
CAUTION: A mains voltage at the incorrect plug terminal can destroy the electronics.
i
Make sure the connecting cables are securely fastened to the plug terminals.
Wiring External Controls
It is recommended that the boiler is controlled by an external control such as a time clock or room thermostat or a
combined programmable room thermostat such as the Elnur model CTP-10.
CAUTION: The switching connection of this control should be VOLT FREE and connected to the terminals
indicated ‘TA’ on the PCB. The factory fitted link across these terminals must be removed.
The boiler’s automatic power modulation feature is ONLY activated by the initial interruption of this switching link.
20
5 COMISSIONING
5.1 INSTALLATION PARAMETERS
These parameters must be adjusted by the installer to match the requirements of the installation.
To access to installation parameters menu:
Ensure the rear mounted power on/off switch is turned on.
-
Ensure the main display front panel is turned off by using the
-
Press and hold the
and
button.
buttons together for at least 5 seconds.
To move forward or backward through the menu use the
and
buttons respectively.
To modify a parameter:
Select the appropriate value e.g. –P00, P01, P02, etc.
-
Press the
button to display the current setting.
-
Modify the setting as required using the
-
To confirm the new setting, press the
and
buttons.
button once.
After setting the various parameters it is necessary to validate by pressing the
button for 3 seconds.
Note - If this is not done after completing changes, none of the changes made will be saved.
IMPORTANT - If none of the buttons are pressed for 30 seconds, the installation parameter menu will be automatically
closed without validating/saving any changes.
Boiler type. If the boiler is for central heating and Domestic Hot Water (DHW) this parameter is 1. If the
boiler is only for central heating it will be 0.
Model. 18 corresponds to model MAC18, 15 corresponds to model MAC15.
Boiler maximum output limit.
Model MAC18 can be limited to 18 - 15 - 12 - 9 - 6 - 3 kW.
Model MAC15 can be limited to 15 - 13 - 12 - 11 - 10 - 9 - 8 - 7 - 6 - 5 - 4 - 3 - 2 kW.
Underfloor heating. If the boiler is underfloor heating ready this parameter will be 1 otherwise it will be
0.
Outdoor temperature probe. An outdoor temperature probe (not provided) can be installed. In this
case the parameter value will be 1.
Heating temperature differential. The heating temperature differential can be selected from 2ºC to
10ºC. The default value is 2ºC.
DHW temperature differential. The DHW temperature differential can be selected from 2ºC to 8ºC.
The default value is 2ºC.
Modulation.
1 (modulation ON)
0 (modulation OFF).
Units. ºC (Celsius)
ºF (Fahrenheit).
Legionella.
1 (Legionella protection ON)
0 (Legionella protection OFF).
To access the parameters menu from P11 – P15, an outdoor temperature probe must be installed and the parameter in P05 set to 1
AUTO heating regulation. If a fan outdoor temperature probe is installed it is possible to activate the
auto heating regulation by shifting this parameter value to 1.
TIMAX. Maximum water flow temperature in AUTO heating mode.
TIMIN. Minimum water flow temperature in AUTO heating mode.
TEMAX. Outdoor temperature from which the water flow temperature will be TIMIN.
TEMIN. Outdoor temperature below which the water flow temperature will be TIMAX.
21
5.2 LIMITING BOILER MAXIMUM OUTPUT
The boiler is supplied for operation on maximum heat output of 15kW. The output can be rated below this maximum to
match the heat load required. This rating is done by means of P03 parameter. See above”5.1 INSTALLATION
PARAMETERS”
WARNING: ON INSTALLATIONS WHERE THE INCOMING POWER SUPPLY IS NOT CAPABLE OF
MAXIMUM LOAD THE BOILER CONTROL MUST BE RE-CONFIGURED TO LIMIT THE OUTPUT BEFORE SWITCHING
ON.
As the output for Domestic Hot Water will also be limited to the same level it is recommended to adjust to the highest
output possible so as to maintain the best hot water performance.
The boiler will not exceed this pre-set maximum but will still modulate in heating mode up to this level, adapting to demand
and ensuring economic operation.
Correct configuration for the selected output can be checked on the boiler display panel following the procedure shown in
7.4 CHECKING RATED HEAT OUTPUT.
CAUTION: It is essential to confirm the power output with the use of a clamp meter.
LIMITATION OF OUTPUT ON MODELS MATTIRA COMBI MAC18 (not available UK & Ireland)
Maximum
output
limited to:
18kW
15kW
12kW
9kW
6kW
3kW
MAXIMUM
CURRENT
L1
26.0A
26.0A
26.0A
13.0A
13.0A
13.0A
MAXIMUM
CURRENT
L2
26.0A
26.0A
13.0A
13.0A
13.0A
-
MAXIMUM
CURRENT
L3
26.0A
13.0A
13.0A
13.0A
-
CONNECTION THREE-PHASE 3x400V~+N
Maximum
output
limited to:
18kW*
15kW*
12kW
9kW
6kW
3kW
MAXIMUM
CURRENT
78.3A*
65.2A*
52.2A
39.1A
26.1A
13.0A
CONNECTION SINGLE PHASE 230V~
LIMITATION OF OUTPUT ON MODELS MATTIRA COMBI MAC15
Maximum
output
limited to:
15kW
13kW
12kW
11kW
10kW
9kW
8kW
7kW
6kW
5kW
4kW
3kW
2kW
MAXIMUM
CURRENT
L1
21.7A
21.7A
8.7A
21.7A
13.0A
13.0A
13.0A
8.7A
8.7A
8.7A
13.0A
-
MAXIMUM
CURRENT
L2
21.7A
21.7A
21.7A
13.0A
8.7A
13.0A
8.7A
13.0A
8.7A
13.0A
8.7A
-
MAXIMUM
CURRENT
L3
21.7A
13.0A
21.7A
13.0A
21.7A
13.0A
13.0A
8.7A
8.7A
8.7A
8.7A
CONNECTION THREE-PHASE 3x400V~+N
Maximum
output
limited to:
15kW*
13kW*
12kW
11kW
10kW
9kW
8kW
7kW
6kW
5kW
4kW
3kW
2kW
MAXIMUM
CURRENT
65.2A*
56.5A*
52.2A
47.8A
43.5A
39.1A
34.8A
30.4A
26.1A
21.7A
17.4A
13.0A
8.7A
CONNECTION SINGLE PHASE 230V~
* The standard configuration of the boiler only allows a maximum of 12kW when connected SINGLE-PHASE 230V~.
22
5.3 HEATING SYSTEM FLUSHING
CAUTION: Flush the heating installation thoroughly prior to installation.
The heating system should be flushed in accordance with BS7593 & BS5449 which will remove any debris or contaminants
detrimental to the operation and life of the boiler. Any cleanser or additives used should comply with current standards and
the manufacturer’s instructions carefully followed.
NOTE: IT IS IMPORTANT NOT TO USE THE BOILER PRESSURE RELIEF VALVE TO DRAIN OR FLUSH THE SYSTEM AS
TRAPPED DEBRIS WILL CAUSE INCORRECT OPERATION. A PURPOSE PROVIDED DRAIN POINT SHOULD BE USED.
5.4 HEATING SYSTEM INITIAL FILLING
Ensure both flow and return isolation valves are open. Identify the boiler automatic air release valve at the top right hand
side of boiler and loosen the cap. Close any manual air vents fitted on the system.
Be careful not to splash any of the electrical components.
Connect the filling loop and fill slowly until the pressure gauge indicates between 1 and 1.5 bar.
Proceed to vent all the manual release valves until all air is purged from the system. It will be necessary to top-up through
the filling loop during this operation until the pressure gauge indicates between 1 and 1.5 bar.
5.5 PUMP CHECKING & VENTING
Sometimes (i.e. if display fault E3) it is necessary to check that the pump is properly vented and spinning freely.
To purge the pump, turn on the boiler and with the pump selector, alternate between positions III and Min every fifteen
seconds. Keep this operation for 5 minutes.
If excess air remains in the system or there is insufficient pressure or flow rate the boiler will fail to operate and display fault
E3.
A LED indicator informs about the operating status of the pump:
-
Green: correct operation.
-
Green / red flashing: Lower voltage U<180V; overvoltage U>253V; Module overheating
-
Red flashing: pump blocked.
5.6 FILLING DOMESTIC HOT WATER
Open the mains water inlet valve underneath the boiler. Turn on all the hot water system taps and thoroughly flush allowing
water to flow until no air is present. This will automatically vent the integral hot water store of any air.
5.7 MORE INSTALLATION DATA
It is possible to display more installation data by pressing
for a few seconds and then
or
Heating return temperature.
Maximum output limitation in kW.
Modulated output in kW.
Outdoors temperature. (Only if the sensor is connected and P005 is activated).
23
.
6 OPERATING THE BOILER
6.1 INITIAL SWITCHING ON
CAUTION: THE MAXIMUM HEAT OUTPUT MUST BE ADJUSTED BEFORE SWITCHING ON. THE BOILER
SHOULD NEVER BE SWITCHED ON WITH THE HEATING SYSTEM OR DHW TANK EMPTY.
DAMAGE COULD OCCUR.
i
When the boiler is first connected it will perform a general self-check and if a fault is detected it will be indicated on
the display.
Turn on the boiler with the on/off switch located at the back of the boiler as shown.
CAUTION: MAINS
CONNECTION TERMINALS
REMAIN LIVE EVEN IF THE ON/OFF
SWITCH IS TURNED OFF.
6.2 CONTROL PANEL DESCRIPTION
MATTIRA COMBI MAC15
DHW.
temperature and
other messages
Increases
heating water
temperature
Heating water
temp. and other
messages
Keyboard power ON/ OFF
block ON/OFF
Block / Unblock
Increases
DHW.
temperature
Decreases
DHW.
temperature
Decreases
heating water
temperature
Power ON/OFF DHW.
key
Red dot shows
DHW. heating
elements on duty
Power ON/OFF heating
key
24
Red dot shows
heating heating
elements on duty
Push the
button to start the boiler up. The same button will turn the boiler off when pushed again.
If the heating or DHW function are not selected the relevant screen will not display a value
but just a red dot.
6.3 DOMESTIC HOT WATER OPERATION
To select the DHW function push the press the
just a red dot.
button. Pushing again will switch the function off and return display to
When the DHW mode is selected the display will show the actual temperature in the DHW accumulation tank. The boiler
will always give priority to DHW production over central heating until the selected DHW temperature is reached.
If heat is demanded by the DHW and the elements are energized a small red indicator is displayed to the right of the
temperature display.
This light will go out when the desired temperature is reached.
The setting of the DHW temperature can be modified by pushing either the
button or the
button and using the
same buttons to adjust the setting that flashes on the display. The modified setting will be stored automatically after a few
seconds, or instantly by pushing the
button.
The DHW setting can be varied between 20 and 60°C.
i
The DHW has priority over the central heating operation and so the outputs are never added together.
i
Water storage at maximum temperature will provide the best protection against the possible formation of legionella
bacteria.
6.4 CENTRAL HEATING OPERATION
First ensure that any external controls such as room thermostat or time clock are demanding heat.
To select the heating function, push the
dot.
button. Pushing again will switch the function off and return display to just a red
When the heating mode is selected the display will show the temperature of the heating water.
We can modify the setting of the temperature of the water by pushing either the
the same buttons to adjust the value that flashes on the display.
The modified setting will be stored after a few seconds or instantly by pushing the
25
button or the
button.
button and using
The heating setting can be varied between 8ºC and 85°C. The symbol H appears after the 85 value or before the 8 value. If
this value is selected, the heating will function in anti-freeze mode.
If the setting is higher than the actual temperature of the heating water and the DHW is not connected, the heating will
connect and a small red indicator of the consumption of heating resistances will light up.
6.5 ANTI-FREEZE MODE (Frost Protection)
It is possible to select an anti-freeze mode for frost protection during periods of inactivity. The power supply to the boiler
must be maintained.
By attempting to set a central heating temperature below the 8ºC value or above the 85ºC value the symbol H will appear on
the display. By selecting this value the heating will only work in anti-freeze mode i.e. if the boiler temperature falls to 7ºC the
heating will activate automatically.
6.6 USER PARAMETERS
The user can change a number of parameters to set some functions of the boiler to the needs of each customer.
To access the user parameters menu – with front display OFF, press and hold the
sec..
To move forward or backward through the menu use the
To modify a parameter press the
buttons. Press the
Modulation.
and
and
buttons for at least 5
buttons respectively.
button and the current value will be displayed. It can be modified with the
and
button to validate
1 (modulation ON)
0 (modulation OFF).
Units. ºC (Celsius)
ºF (Fahrenheit).
Legionella.
1 (Legionella protection ON)
0 (Legionella protection OFF).
AUTO heating regulation. If a fan outdoor temperature probe is installed it is possible to activate the
auto heating regulation by shifting this parameter value to 1.
TIMAX. Maximum water flow temperature in AUTO heating mode.
TIMIN. Minimum water flow temperature in AUTO heating mode.
TEMAX. Outdoor temperature from which the water flow temperature will be TIMIN.
TEMIN. Outdoor temperature below which the water flow temperature will be TIMAX.
26
6.7 HEATING MODULATION FEATURE
The advanced control board on the boiler will automatically modulate the heating output to the demand required to save
energy.
This function works by the boiler ‘learning’ and anticipating the time taken to reach the temperature level demanded by the
external thermostatic control. The power output is automatically adjusted therefore reducing power consumption on
warmer days or when another heat source is present.
An external ‘volt free’ control must be fitted across the terminals marked ‘TA’ on the PCB and the ‘bridge’ removed for this
function to be activated.
This feature can be disabled using parameter P11. See “6.6 USER PARAMETERS”.
6.8 LEGIONELLA PROTECTION
If Legionella protection is activated, once a week the DHW temperature is raised to the maximum allowed. By default
protection against Legionella it is disabled. This function can be activated with parameter P10. See " 6.6 USER
PARAMETERS".
6.9 AUTO HEATING REGULATION
It is possible to regulate the temperature at which the boiler drives the water heating circuit depending on the outdoors
temperature. This method of regulation provides maximum comfort as it anticipates changes in the thermal needs of the
house. The room thermostat continues to regulate the temperature inside the house.
To activate this mode of heating, the installer will need to connect an external temperature sensor (not supplied) and
activate the P05 and P11 parameters.


 





 














There are four parameters that define this function.
TIMAX.
Maximum water flow temperature in AUTO heating mode.
In the above example TIMAX=80ºC.
TIMIN.
Minimum water flow temperature in AUTO heating mode.
In the above example TIMIN=20ºC.
TEMAX.
Outdoor temperature from which the water flow temperature will be TIMIN.
In the above example TEMAX=15ºC.
TEMIN.
Outdoor temperature below which the water flow temperature will be TIMAX.
In the above example TEMIN=2ºC.
On the coldest days the water will be driven at higher temperatures and vice versa on the hottest days-less water will be
driven at a lower temperature. In the example, we see how, if the outdoors temperature is of 5ºC the water flow
temperature heating circuit would be about 66 °C.
27
You can temporarily override the automatically calculated set point. If, for example, you want to use the boiler to the
maximum for a few hours even when automatic control mode, you would proceed as follows:
When pressing the
or
button, the display will alternatively show the calculated set point and the indication
. By holding down either of these two keys for at least 5 seconds, the calculated set point will start flashing and
the set point can now be modified with the same keys. Validate the selection by pressing the
set point is going to be overridden is shown:
button. The time that the
. It can be modified from 1 to 24h. Validate the selection by pressing
the
button. The override set point and the time remaining are displayed alternatively every 10 seconds.
At any time it is possible to cancel this state just by turning off and restarting the boiler.
6.10 BLOCKING THE CONTROLS
It is possible to lock the buttons of the control panel to prevent any adjustment.
By keeping the
button pressed down for a few seconds, the control panel will be locked.
The control buttons of the boiler will be locked and no button will respond when pressed. Internally all the settings remain
the same and the boiler will function normally.
To unlock the buttons, press the same button down for a few seconds until the above displayed symbol goes off. If the boiler
is disconnected from the mains or there is a failure in the house’s electricity supply, the buttons will also be unlocked.
6.11 PUMP ANTI-SEIZE FUNCTION
The advanced boiler control will automatically energize the pump for 10 seconds each month to protect it from seizing
during long periods of inactivity. The power supply must be maintained for this function to operate.
28
7 TROUBLESHOOTING
7.1 POSSIBLE FAULTS & SOLUTIONS
Problem
Boiler will not start
Possible cause
No power to boiler.
No power.
Heating overheat. Switch tripped.
DHW Overheat switch tripped.
DHW tank empty.
Fault E1 displayed
Heating flow temperature sensor
Fault E2 displayed
Heating return temperature sensor
Heating water out temperature
probe defective.
Heating water return temperature
probe defective.
Low heating system pressure.
Pump not turning.
Fault E3 displayed
Heating system water flow switch
Air in system.
System resistance too high or
blockage.
Fault E6 displayed
DHW temperature sensor
Fault E8 displayed
Outdoor temperature sensor
Defective DHW tank temperature
sensor.
Defective outdoor temperature
sensor or not present.
Excessive heating system pressure.
Heating system water
discharging from 3 bar safety
valve
Excessive pressure in domestic
water system.
Domestic water discharging
from 7 bar valve
The buttons do not respond
Control panel blocked
Settings too low.
Low heating temperature
Failure of heating elements
Heat requirements miscalculated.
Solution
Check incoming power supply.
Check boiler control switch is on.
(See Section 6.1.)
Locate switch and reset. (See
Section 7.2)
Locate switch and reset. (See
Section 7.2)
Check cold water mains is on.
Open a hot water tap until the
water flows.
Contact Technical Service
Contact Technical Service
Check for leaks.
Refill heating system to 1.5 bar.
Check rotating freely (sect 5.5)
Replace pump if necessary.
Purge thoroughly.
Check automatic air valve open.
Vent pump (sect 5.5)
Check pump speed 3.
Check pump duty (sect 4.9b)
Open all radiator valves.
Install system by-pass.
Check connections. Replace sensor
if necessary.
This sensor is optional. Check
connections. Replace sensor if
necessary. Check parameter settings
correct (Sect 5.1)
Check filling loop has not been left
connected and is not “letting water
pass”. Disconnect filling loop hose.
Check expansion vessel is charged
to correct level with air.
Check system expansion volume.
Check group combination inlet valve
is fitted. Install if not fitted.
Check incoming mains pressure to
boiler is below 3 bar.
Check expansion vessel is charged
to correct level with air.
See Section 6.10 BLOCKING THE
CONTROLS
Check temperature & output
selected.
Check and replace.
Re-calculate & configure.
If the suggested action fails to resolve a problem, please contact ELNUR technical service for further advice.
29
7.2 OVERHEAT LOCK-OUT & RE-SETTING
Central heating overheat.
If the boiler detects a overheat condition of 100ºC (80ºC if adapted floor heating) in the central heating circuit a safety
thermal limit switch will operate and switch the boiler off disabling all functions including DHW production.
The cause of the overheat should be investigated.
The safety limit switch is on the right underside of the boiler and will require re-setting manually by following the procedure
shown:
Unscrew & remove the black cap and push the small pin behind it until you hear a click. The limiter will not re-set until the
temperature in the heating header drops below 100°C or 80°C if the boiler is adapted for radiant floor heating.
Domestic Hot Water overheat.
As with the heating circuit a second thermal limit switch, situated on the left underside of the boiler, will operate if a
overheat condition (80ºC) is detected in the DHW circuit and switch the boiler off disabling all functions including central
heating.
The cause should be investigated and the above procedure followed to re-set the DHW limit switch.
30
7.3 HEATING SYSTEM FLOW SWITCH – E3 ERROR & SYSTEM BY-PASS REQUIREMENTS
If the error E3 appears on the display, the flow switch has detected insufficient water flow in the heating circuit and heat
production is disabled to protect the boiler from overheating.
The possible causes for this condition are:
- Insufficient water pressure in the heating system requiring re-filling to 1.5bar
- Pump not circulating or seized. Check as shown (Sect 5.3)
- Blockage in heating circuit from debris or a foreign object in the boiler or pipe-work.
- Insufficient flow rate caused by restrictions such as insufficient size pipe-work, too many bends or isolation valves with
restricted bore.
- Closed radiator valves (Thermostatic). In this situation, it is essential the required minimum flow rate of 7 L/min is
maintained through the boiler during all conditions. It may be sufficient to maintain one radiator with permanently open
valves however the guidance under current Building Regulations relating to the conservation of energy recommends the
fitting of an automatic by-pass valve. This type of valve modulates open when necessary to ensure that the appropriate
minimum flow rate is maintained through the boiler, at all other times it is closed thus preventing unnecessary and wasteful
circulation through the bypass and the boiler.
7.4 CHECKING RATED HEAT OUTPUT
i
It is possible to check the actual heat power output configuration that is set on the boiler and also the modulated
operating output at that moment.
Press the
button for three seconds.
The heating display will show
followed by the temperature value of the return probe of the heating circuit.
On pushing
button, the display will show
to the tables (see 5.1).
On pushing
moment.
followed by the value of the limited maximum output according
button again, the display will show
followed by the actual modulated output power at that
31
8 MAIN COMPONENTS LIST
Heating expansion vessel 6L
DHW. expansion vessel 3L
DHW. expansion vessel hose MAC
50 L DHW. insulated tank
Insulated heating header tank
Circulation pump RKC130
Main electronic PCB MAC
Power PCB MAC with support
Keyboard MAC
Temperature sensor white
Temperature sensor black
15 kW heating resistance & joint 140
15 kW DHW. resistance & joint
ref. 60091510
ref. 60105580
ref. 60105560
ref. 60100072
ref. 60101700
ref. 60190076
ref. 60105585
ref. 60105595
ref. 60105555
ref. 60105600
ref. 60105605
ref. 60100750
ref. 60100700
DHW. resistance joint
Heating resistance joint
¾” heating flow detector
0-4 bar pressure gauge
100°C thermal limiter
80°C thermal limiter
Automatic purge
3 bar central heating relief valve
7 bar DHW. P&T relief valve
DHW. retention valve
½” filling / shut off valve
Adhesive controls cover 220x60
Adhesive controls cover 140x50
ref. 60100068
ref. 60091090
ref. 60100805
ref. 60100820
ref. 60101860
ref. 60101870
ref. 60091280
ref. 60100840
ref. 60105660
ref. 60100830
ref. 60091160
ref. 60100502
ref. 60100508
9 MAINTENANCE & CARE
Gabarron MATTIRA electric combi boilers will require an annual maintenance check to ensure preservation of the
manufacturer's warranty and a prolonged and trouble-free life. A full check list and service log is located at the back of this
manual which, should be adhered to. The following points below should also be constantly observed:
-Check and maintain the heating system pressure between 1 & 1.5 bar when cold. Frequent re-filling of the system could
cause scaling and corrosion and should be avoided. Regular pressure loss could indicate a leak and should be investigated
promptly.
CAUTION – Under no circumstances should the boiler be switched on when the system is dry.
CAUTION - Never start the boiler when the DHW tank is empty; to fill it for the first time open a hot water tap
and wait until water comes out of it.
- Keep the ventilation openings on the boiler clear to ensure correct operation and protect from overheating. Do not place
or store objects on the boiler.
- Protect against freezing by ensuring power is maintained to the boiler at all times, unless the water supply is interrupted or
the heating system is empty. In dwellings, frequently un-occupied or at risk of freezing, an appropriate anti-freeze can be
added to the heating system at a concentration of not more than 30% by volume. Otherwise it is recommended to isolate
the power and completely drain the heating and hot water systems.
- The outer case can be cleaned with a damp cloth having first isolated the boiler from the mains. Do not use solvents or
abrasive cleaners.
10 ENVIRONMENTAL INFORMATION
Gabarrón boilers are manufactured within a certified environmental management system. From the design stage, all the
production phases are performed taking into account the most rigorous environmental requirements. For example, the
selection of materials involves guaranteeing their biodegradability, re-use and recycling.
When this boiler’s long, useful life is over; it must be handed in to an electrical equipment collection point for proper
recycling. By ensuring that this product is correctly disposed of, you will help to avoid any possible negative effects on the
environment and public health that could occur if this product is not properly handled. To obtain more detailed information
on the recycling of this product, contact your local authority, your waste disposal service or the shop where you purchased
the product.
These regulations only apply in EU member countries.
32
11 TECHNICAL DATA
Frequency
Connection 3x400V+N~
Output limited to 15kW; Maximum intensity
Output limited to 13kW; Maximum intensity
Output limited to 12kW; Maximum intensity
Output limited to 11kW; Maximum intensity
Output limited to 10kW; Maximum intensity
Output limited to 9kW; Maximum intensity
Output limited to 8kW; Maximum intensity
Output limited to 7kW; Maximum intensity
Output limited to 6kW; Maximum intensity
Output limited to 5kW; Maximum intensity
Output limited to 4kW; Maximum intensity
Output limited to 3kW; Maximum intensity
Connection 230V~ single phase
Nominal maximum intensity 15kW
Maximum converted intensity at 13kW
Maximum converted intensity at 12kW
Maximum converted intensity at 11kW
Maximum converted intensity at 10kW
Maximum converted intensity at 9kW
Maximum converted intensity at 8kW
Maximum converted intensity at 7kW
Maximum converted intensity at 6kW
Maximum converted intensity at 5kW
Maximum converted intensity at 4kW
Maximum converted intensity at 3kW
DHW available time with 15kW
DHW available time with 13kW
DHW available time with 12kW
DHW available time with 11kW
DHW available time with 10kW
DHW available time with 9kW
DHW available time with 8kW
DHW available time with 7kW
DHW available time with 6kW
DHW available time with 5kW
DHW available time with 4kW
DHW available time with 3kW
DHW available time with 2kW
Weight
Insulated steel heater header
50 L stainless steel insulated DHW store
Stainless steel plated resistance elements INCOLOY800
Stainless steel plated resistance elements INCOLOY800
6 litre expansion vessel
DHW 3 litre expansion vessel
Electronic regulation of heater modulation
Electronic regulation DHW
Digital display
0-4 bar pressure gauge
Accelerator pump
Automatic purge
TRIACS silent power switches
Heating flow detector
100°C heating temperature limiter
80°C DHW temperature limiter
3 bar central heating relief valve
7 bar DHW Pressure and Temperature relief valve
DHW retention valve
Ambient thermostat intake
Anti-electrolysis DHW hoses.
Sound power level (LWA)
MAC15
Hz
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
min
min
min
min
min
min
min
min
min
min
min
min
min
kg
No CFC
DHW
Heating
dB
50

21.7
21.7
21.7
21.7
21.7
13.0
13.0
13.0
13.0
13.0
13.0
13.0
1
65.21
56.51
52.2
47.8
43.5
39.1
34.8
30.4
26.1
21.7
17.4
13.0
5’49”
6’42”
7’16”
7’56”
8’43”
9’41”
10’54”
12’27”
14’32”
17’26”
21’48”
29’04”
43’36”
72





















36
included
1
using connecting links included
The standard configuration of the boiler only allows a maximum of 12kW when connected SINGLE-PHASE 230V~.
33
DECLARACION DE CONFORMIDAD
De acuerdo con la norma ISO / IEC 17050-1
DECLARATION OF CONFORMITY
According to the Standard ISO / IEC 17050-1
Nº 6610000 and 6620000
Nombre del fabricante :
Manufacturer’s name :
ELNUR, S.A.
Dirección del fabricante :
Manufacturer’s address :
ELNUR, S.A.
P.I. El Nogal. Villa Esther, 11
28110 Algete, Madrid, Spain
Declara que el producto :
Caldera modulante digital sólo calefacción “MAS15”
Caldera modulante digital de calefacción y A.C.S. “MAC15”
“MAS15” Heating digital modulating boiler
“MAC15” Heating and D.H.W. digital modulating boiler
Declares, that the product :
Marca :
Trade Mark :
GABARRÓN
Modelos :
Models :
MAS15, MAC15
ha sido fabricado conforme a las especificaciones técnicas del producto y cumple en todo
las Normas vigentes, en particular:
has been manufactured to the technical specifications of the product and conforms in all
respects to the relevant standards and regulations in force and especially to :
Seguridad :
Safety :
EN 60335-1:2012+A11:2014
EN 60335-2-35:2002+A1:2007+A2:2011
EN 50106:2008
EMC :
EN 55014-1:2006+A1:2009+A2:2011
EN 55014-2:1997+A1:2001+A2:2008
EN 61000-3-2:2006+A1:2009+A2:2009
EN 61000-3-3:2008
Información adicional :
Additional information :
El producto aquí citado lleva el marcado CE y se halla en conformidad con la Directiva de Ecodiseño
2009/125/CE, la Directiva de Baja Tensión 2014/35/UE y la Directiva de EMC 2014/30/UE.
Cualquier uso que no esté de acuerdo con las instrucciones y/o cualquier cambio al aparato invalidarán
esta declaración de conformidad.
The product herewith carries the CE mark and complies with the requirements of Ecodesign Directive
2009/125/EC, the Low Voltage Directive 2014/35/UE and EMC Directive 2014/30/UE.
Any use not according to the instructions and/or any change to the appliance will invalidate this declaration of
conformity.
Algete, 28 de Octubre de 2016
Place, Date
Alberto Fernández
Director Gerente
ELNUR, S.A.
34
13 PRODUCT FICHE
ErP
MODELO(S): GABARRON MATTIRA MAC15 (wall mounted electric combination boiler)
CONDENSING BOILER: NO
LOW TEMP. BOILER: NO
B1 BOILER: NO
CO-GENERATION SPACE HEATER: NO
COMBINATION HEATER: YES
Information
Space heating:
Rated heat output
Power output
Seasonal space heating energy efficiency
Useful efficiency at rated heat output and high-temperature regime
Auxiliary electricity consumption in standby mode
Standby heat loss
Sound power level, indoors
Seasonal space heating energy efficiency class
Water heating:
Declared load profile
Daily energy consumption
Annual electricity consumption
Water heating energy efficiency
Water heating energy efficiency class
Symbol
Value
Unit
Prated
P4
ηs
η4
Psb
Pstby
LWA
15
15
36,4
39,5
0,003
0,07
36
kW
kW
%
%
kW
kW
dB
D
L
Qelec
AEC
ηwh
31.89
2806
36,6
kWh/día
kWh
%
D
ELNUR, S.A.
Travesía de Villa Esther, 11
28110 – Algete (Madrid)
Spain
Contact details:
35




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
14 WIRING DIAGRAMS















 
 



 



36















 
 
 
 
 
 
 
 
 
 
 
 

























  




 

37





15 WARRANTY
Your new Gabarron Mattira electric combi boiler from Elnur is warranted against faulty materials and manufacture defects.
The internal unvented hot water cylinder is warranted against faulty materials and manufacture defects for a period of 5 years
from the date of purchase. The remainder of components is warranted against faulty materials and manufacture defects for a
period of 2 years from the date of purchase.
The above warranty is provided on the basis that:
-
The boiler has been installed in accordance with the guidance detailed in this user manual and all relevant Codes of
Practice and Regulations that are in force at the time of installation.
All necessary valves, fittings, safety valves and controls have been installed.
Installation has been completed by a competent person with regard to heating installation, G3 of the Building
Regulations, Water Regulations/Bylaws and Electrical Regulations.
No unauthorized person or person without prior written agreement by Elnur UK Ltd has modified or altered the
boiler in any way whatsoever.
The installation commissioning checklist (Section 16 at the rear of this manual) has been completed.
The boiler has been regularly maintained as detailed in this manual (Section 9).
The maintenance checklist (Section 17) is verified in the service record (Section 18) and that the service record is
up to date.
The boiler is only being used for domestic heating and hot water purposes.
The boiler has been installed in the UK or Ireland.
The warranty card supplied separately with this manual is completed and returned to Elnur UK Ltd or that the
online guarantee registration form is completed and submitted at www.elnur.co.uk within 21 days of purchase.
Important Note:
The Gabarron Mattira electric combi boiler is not warranted against the effects of damage caused by frost.
The heating elements are not warranted against the effects of damage caused by scale.
This warranty is in addition to the statutory rights of the consumer and in no way affects the statutory rights of the
consumer.
Elnur UK Limited Contact Information
Pre-sales product & installation advice – advice@elnur.co.uk / 01438 358760
Product specification service / advice – projects@elnur.co.uk / 01438 358760
Technical issues during installation – technical@elnur.co.uk / 01942 265048
After-sales service – technical@elnur.co.uk / 01942 265048
38
16 INSTALLATION COMMISSIONING CHECKLIST
16.1 HOT WATER STORAGE SYSTEM
This Commissioning Checklist is to be completed in full by the competent person who commissioned the heating system as a
means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for
future reference.
Failure to install and commission this equipment to the manufacturer’s instructions may invalidate the warranty but does not
affect statutory rights.
Customer name:
Telephone number:
Address:
Boiler Make and Model: Gabarron Mattira MAC 15 electric combi boiler
Boiler Serial Number
Commissioned by (PRINT NAME)
Registered Operative ID Number
Company name:
Telephone number:
Company address:
Commissioning date:
To be completed by the customer on receipt of a Building Regulations Compliance Certificate*:
Building Regulations Notification Number (if applicable)
ALL INSTALLATIONS
What is the incoming static cold water pressure at the inlet to the system?
bar
Has a strainer been cleaned of installation debris (if fitted)?
Yes
No
Is the installation in a hard water area (above 200ppm)?
Yes
No
If yes, has a water scale reducer been fitted?
Yes
No
What type of scale reducer has been fitted?
What is the hot water thermostat set temperature?
ºC
What is the maximum hot water flow rate at set thermostat temperature (measured at high flow outlet)?
l/min
Time and temperature controls have been fitted in compliance with Part L of the Building Regulations?
Type of control system (if applicable)
Y plan
Yes
S Plan
What is the hot water temperature at the nearest outlet?
Other
ºC
All the appropriate pipes have been insulated up to 1 metre or the point where they become concealed
Yes
Where is the pressure reducing valve situated (if fitted)?
What is the pressure reducing valve setting?
bar
Has a combined temperature and pressure relief valve and expansion valve been fitted and discharge tested?
Yes
The tundish and discharge pipework have been connected and terminated to Part G of the Building Regulations
No
Yes
Are all energy sources fitted with a cut out device?
Yes
No
Has the expansion vessel or internal air space been checked?
Yes
No
The hot water system complies with the appropriate Building Regulations
Yes
The system has been installed and commissioned in accordance with the manufacturer’s instructions
Yes
The system controls have been demonstrated to and understood by the customer
Yes
The manufacturer’s literature, including Installation Checklist and Service Record, has been explained and left with the customer
Yes
Commissioning Engineer’s Signature
Customer’s Signature
(To confirm satisfactory demonstration and receipt of manufacturer’s literature)
*All installations in England and Wales must be notified to Local Authority Building Control (LABC) either directly or through a competent persons Scheme.
A Building Regulations Compliance Certificate will then be issued to the customer.
39
16.2 CENTRAL HEATING SYSTEM
This Commissioning Checklist is to be completed in full by the competent person who commissioned the heating system as a
means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for
future reference.
Failure to install and commission this equipment to the manufacturer’s instructions may invalidate the warranty but does not
affect statutory rights.
Commissioned by (PRINT NAME)
Registered Operative ID Number
Company name:
Telephone number:
Company address:
Commissioning date:
To be completed by the customer on receipt of a Building Regulations Compliance Certificate*:
Building Regulations Notification Number (if applicable)
ALL INSTALLATIONS
What is the heating water thermostat set temperature?
ºC
Time and temperature controls have been fitted in compliance with Part L of the Building Regulations?
Type of control system (if applicable)
Y plan
Yes
S Plan
Other
If “other” selected above, please provide details
Boiler interlock
Provided
Thermostatic radiator valves
Fitted?
Not required?
Automatic bypass to system
Fitted?
Not required?
All appropriate pipes have been insulated up to 1 metre or the point where they become concealed
Yes
Has the heating system discharge been connected and terminated correctly?
Yes
The system has been flushed and cleaned in accordance with BS7593 and boiler manufacturer’s instructions?
Yes
What system cleaner was used?
What inhibitor was used?
Quantity
Litres
Central heating flow temperature?
Degrees
ºC
Central heating return temperature?
Degrees
ºC
Are all energy sources fitted with a cut out device?
Yes
No
Has the expansion vessel or internal air space been checked?
Yes
No
The system has been installed and commissioned in accordance with the manufacturer’s instructions
Yes
The system controls have been demonstrated to and understood by the customer
Yes
The manufacturer’s literature, including Installation Checklist and Service Record, has been explained and left with the customer
Yes
Commissioning Engineer’s Signature
Customer’s Signature
(To confirm satisfactory demonstration and receipt of manufacturer’s literature)
*All installations in England and Wales must be notified to Local Authority Building Control (LABC) either directly or through a competent persons Scheme.
A Building Regulations Compliance Certificate will then be issued to the customer.
40
16.3 ELECTRICAL INSTALLATION
This Commissioning Checklist is to be completed in full by the competent person who commissioned the heating system as a
means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for
future reference.
Failure to install and commission this equipment to the manufacturer’s instructions may invalidate the warranty but does not
affect statutory rights.
Commissioned by (PRINT NAME)
Registered Operative ID Number
Company name:
Telephone number:
Company address:
Commissioning date:
To be completed by the customer on receipt of a Building Regulations Compliance Certificate*:
Building Regulations Notification Number (if applicable)
ALL INSTALLATIONS
Is the electrical supply to the property
single?
three phase?
What is the rating of the main fuse to the property?
Amps
Is the circuit relating to the boiler power supply a dedicated circuit that only supplies the boiler?
Yes
Is the boiler circuit protected by an RCD?
Yes
What is the rating of the boiler circuit MCB?
Amps
What size Twin & Earth cable has been used for the boiler circuit?
mm2
Has a “local” isolation switch been installed in close proximity to the boiler?
Yes
What is the rating of the local isolation switch for the boiler circuit?
Amps
If external controls have been installed, are these powered from a separate switched and fused spur?
Yes
Have all electrical connections been checked for tightness including factory connections to main terminals and contactor?
Yes
Has the power setting on the boiler been adjusted to suit the installation requirements and within the capability of the power supply?
Yes
What kW power rating has the boiler been set to?
kW
Has a clamp meter test been carried out to verify the power rating?
Yes
No
Has the electrical installation been tested and certified?
Yes
The system has been installed and commissioned in accordance with the manufacturer’s instructions
Yes
The system controls have been demonstrated to and understood by the customer
Yes
The manufacturer’s literature, including Installation Checklist and Service Record, has been explained and left with the customer
Yes
Commissioning Engineer’s Signature
Customer’s Signature
(To confirm satisfactory demonstration and receipt of manufacturer’s literature)
*All installations in England and Wales must be notified to Local Authority Building Control (LABC) either directly or through a competent persons Scheme.
A Building Regulations Compliance Certificate will then be issued to the customer.
41
17 MAINTENANCE CHECKLIST
This Maintenance Checklist is to be verified in full by the competent person undertaking the annual service of the boiler.
Failure to maintain this equipment to the manufacturer’s instructions may invalidate the warranty but does not affect
statutory rights.
PERIODIC MAINTENANCE OF THIS EQUIPMENT IS ESSENTIAL FOR SAFETY & PRESERVATION OF THE
MANUFACTURER’S GUARANTEE.
GENERAL
Check location of boiler and that it is accessible
Check that boiler ventilation areas are not blocked or covered
Visual inspection of appliance for damage or signs or misuse
Remove boiler casings and inspect / clean
MAINS PRESSURE HOT WATER STORAGE SYSTEM
Check and clean filter
Manually check the operation of the temperature relief valve
Manually check the operation of the expansion relief valve
Check discharge pipes from temperature and expansion relief valves are free from obstruction and blockage and are not passing any water
Check the condition and if necessary descale the heat exchangers in hard water areas
Check that water pressure downstream of the pressure reducing valve is within the manufacturer’s limits
Check temperature set point is correct
Check the pressure on the air side of the expansion vessel. This must be done when the volume in the cylinder is cold
Check and advise the householder not to place any clothing or other combustible materials against or on top of this appliance
Complete the service record log
CENTRAL HEATING SYSTEM
Check and clean / replace any external filter system fitted in connection with the boiler
Manually check the operation of the heating 3 bar relief valve
Check discharge pipe from heating 3 bar relief valve is free from obstruction and blockage and is not passing any water
Check that the temperature set point is correct
Check the pressure on the air side of the heating expansion vessel. This must be done when the volume in the heating chamber is cold
Check pressure gauge is between 1 and 1.5 bar when cold. Top up if required.
Check quality of heating system water in accordance with inhibitor manufacturers guidelines
Check boiler visually for leaks and corrosion
Run boiler to ensure correct operation
Check for air in system and remove. Top up pressure afterwards as required
Check operation of any external controls connected to the boiler
Check and advise the householder not to place any clothing or other combustible materials against or on top of this appliance
Complete the service record log
ELECTRICAL
Check power rating of boiler
Confirm power rating of boiler is suitable for electrical installation
Check operation of RCD, MCB and local isolation switch
Check tightness of all circuit electrical connections
Check tightness of all power connections to boiler terminals
Check tightness of all factory connections to main terminals and contactor
Using a clamp meter, verify the power being drawn by the boiler is relative to the boiler power setting when operating at full demand
Check and advise the householder not to place any clothing or other combustible materials against or on top of this appliance
Complete the service record log
The manufacturer’s literature, including Installation Checklist and Service Record, has been explained and left with the customer
42
Yes
18 SERVICE RECORD
It is recommended that your Gabarron Mattira boiler is serviced regularly and that the appropriate service record is
completed.
Before completing the appropriate service record below, please ensure you have carried out the service as described in the
manufacturer’s instructions.
SERVICE RECORD #01
General/Heating
DATE:
Mains pressure Hot Water
SERVICE RECORD #02
Electrical
General/Heating
Engineer name:
Engineer name:
Company name:
Company name:
Telephone No:
Telephone No:
Comments:
Comments:
Signature:
Signature:
SERVICE RECORD #03
General/Heating
DATE:
Mains pressure Hot Water
SERVICE RECORD #04
Electrical
General/Heating
Engineer name:
Engineer name:
Company name:
Company name:
Telephone No:
Telephone No:
Comments:
Comments:
Signature:
Signature:
SERVICE RECORD #05
General/Heating
DATE:
Mains pressure Hot Water
General/Heating
Engineer name:
Engineer name:
Company name:
Company name:
Telephone No:
Telephone No:
Comments:
Comments:
Signature:
Signature:
SERVICE RECORD #07
General/Heating
DATE:
Mains pressure Hot Water
General/Heating
Engineer name:
Engineer name:
Company name:
Company name:
Telephone No:
Telephone No:
Comments:
Comments:
Signature:
Signature:
SERVICE RECORD #09
General/Heating
DATE:
Mains pressure Hot Water
Electrical
General/Heating
Engineer name:
Engineer name:
Company name:
Company name:
Telephone No:
Telephone No:
Comments:
Comments:
Signature:
Signature:
43
Electrical
DATE:
Mains pressure Hot Water
SERVICE RECORD #10
Electrical
DATE:
Mains pressure Hot Water
SERVICE RECORD #08
Electrical
Electrical
DATE:
Mains pressure Hot Water
SERVICE RECORD #06
Electrical
DATE:
Mains pressure Hot Water
Electrical
DATE:
Mains pressure Hot Water
Electrical
The symbol on the product or in its packaging indicates that this product may not be treated as
household waste. Instead it shall be handed over to the applicable collection point for the recycling of
electrical and electronic equipment. By ensuring this product is disposed of correctly, you will help
prevent potential negative consequences for the environment and human health, which could otherwise
be caused by inappropriate waste handling of this product. For more detailed information about recycling
of this product, please contact your local city office, your household waste disposal service or the shop
where you purchased the product. These instructions are only valid in the EU member states.
Supplier
ELNUR UK Ltd.
Unit 1, Brown Street North
Leigh, Lancashire. WN7 1BU
Telephone +44(0)1942 670119
www.elnur.co.uk
info@elnur.co.uk
Manufactured by:
ELNUR, S.A.
Travesía de Villa Esther, 11
28110 ALGETE – Madrid
Telephone +34 916281440
As a part of the policy of continuous product improvement Elnur s.a. reserves the right to alter specifications without notice.
60105695 R7
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