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3.3 KEY TO COMPONENTS
1 Main electronic PCB.
2 ON / OFF switch.
3 Heating safety thermal limit switch.
4 Heating resistance.
5 Insulated heating header tank.
6 Automatic purge.
7 Heating expansion vessel 6L.
8 Heating power electronic PCB
9 Circulation pump.
10 Heating flow detector.
11 Heating 3 bar relief valve.
12 Main contactor.
13 Connection block.
14 Pressure gauge.
3.4 SAFETY DEVICES
Safe operation under various conditions is ensured by the
following controls fitted inside the boiler:
Water flow switch that monitors water flow in the
o
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).
Heating system high limit safety thermostat will
o
prevent operation if the temperature exceeds 100ºC.
It requires re-setting manually.
Heating system pressure relief valve will discharge to
o
relieve excess pressure at 3 bar. (Requires piping to a
safe external discharge point.)
4 INSTALATION
IMPORTANT PRE- INSTALLATION POINTS
In order to ensure the successful installation and
operation of your Gabarrón boiler, please consider
the following points before commencing.
SITING THE BOILER
WARNING
support the total weight; MATTIRA MAS boiler
when full is 50kg.
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.
The cable, MCB and RCD must be of sufficient capacity to
carry the required load.
i
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).
HEATING SYSTEM & CONTROLS
Any existing system must be suitable for sealed system
operation at up to 3bar pressure and may require
flushing/cleansing.
Isolation valves and drain point are required.
A time clock/room thermostat should be installed.
(Necessary to activate automatic power modulation).
If the installation includes thermostatic radiator valves or
automatic temperature zone controller, it is essential not to
interrupt the flow rate trough the boiler in any case, it will
cause E3 error or the action of safety thermostat.
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Wall and fixings must b
suitable to
e
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