3
3.3 KEY TO COMPONENTS
1 Incoming water isolating valve.
2 Connection block.
3 ON / OFF switch.
4 DHW safety thermal limit switch.
5 Main contactor.
6 DHW electronic PCB
7 Anti-electrolysis DHW hoses.
8 DHW resistance.
9 DHW Temperature sensor location.
10 Insulated tank 50L.
11 Automatic purge.
12 Heating expansion vessel 6L.
13 DHW expansion vessel 2L.
14 Circulation pump.
15 Insulated heating header tank.
16 Heating resistance.
17 Heating 3 bar relief valve.
18 Heating safety thermal limit switch.
19 Main electronic PCB.
20 Pressure gauge.
21 Heating flow detector.
22 Controls card.
23 Heating filling valve.
24 DHW 7 bar relief valve.
3.4 SAFETY DEVICES
Safe operation under various conditions is ensured by the
following controls fitted inside the boiler:
o
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).
o
Hot water high limit safety thermostat will prevent
operation if the temperature exceeds 80ºC. It
requires re-setting manually.
o
Heating system high limit safety thermostat will
prevent operation if the temperature exceeds 100ºC.
It requires re-setting manually.
o
Hot water pressure relief valve will discharge to
relieve excess pressure at 7 bar. (Requires piping to a
safe external discharge point.)
o
Heating system pressure relief valve will discharge to
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 Gabarron boiler, please consider the
following points before commencing
.
SITING THE BOILER
WARNING
Wall and fixings must b
e
suitable to
support the total weight; MATTIRA CMXi boiler
when full is
120kg.
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.
