19
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 + j0.25
Ω
.
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.