Electrical Connections - Gabarron MATTIRA MAS18 Instrucciones De Instalacion Y Uso

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.
4.8 SAFETY VALVE CONNECTIONS
The 3 bar pressure relief valve may discharge boiling water and should be piped with a continuous fall to a safe yet visible
point where any discharge cannot cause damage or injury.
CAUTION: The discharge pipe-work from the T&P relief valve must be installed by a competent person.
The discharge pipe material must be capable of conveying water / steam at 100ºC.
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 PUMP DUTY
Boiler equipped with a high efficiency circulation pump, with a maximum delivery head 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.

4.10 ELECTRICAL CONNECTIONS

Connection to Mains Supply
The MAS15 and MAS18 boilers must be installed in premises having a system impedance of not more than 0.25 + j0.25Ω.
The MAS15 and MAS18 boilers comply with the technical requirements of EN 61000-3-3.
The MAS15 and MAS18 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: 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.
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