BLUEHELIX TOP RRT K 50
245
EN
cod. 3541Q281 - Rev. 02 - 10/2020
Periodical check
To ensure proper operation of the unit over time, have qualified personnel carry out a yearly inspection, providing for
the following checks:
•
The control and safety devices (gas valve, thermostats, etc.) must function correctly.
•
The fume exhaust circuit must be perfectly efficient.
•
The sealed chamber must be tight.
•
The air-fume end piece and ducts must be free of obstructions and leaks
•
The burner and exchanger must be clean and free of deposits. Use suitable brushes for cleaning. Never use che-
mical products.
•
The electrode must be properly positioned and free of any deposits.
The electrode can be cleaned of incrustations only with a non-metallic brush, and must NOT be sanded.
•
The gas and water systems must be tight.
•
The water pressure in the system when cold must be approx. 1 bar; otherwise bring it to that value.
•
The circulating pump must not be blocked.
•
The expansion vessel must be filled.
•
The gas flow and pressure must match that given in the respective tables.
•
The condensate evacuation system must be efficient with no leakage or obstructions.
•
The trap must be full of water.
•
Check the quality of the water in the system.
•
Check the condition of the exchanger insulation.
•
Check the gas connection between the valve and Venturi.
•
Replace the burner gasket if damaged.
•
After checking, always control the combustion parameters (see "checking the combustion values").
3.4 Troubleshooting
Diagnostics
LCD Off
Make sure that the card is powered: using a digital multimeter, check for the presence of supply voltage.
In case of no voltage, check the wiring.
If the voltage is sufficient ( Range 195 – 253 Vac ), check the fuse
(3.15AL@230VAC)
. The fuse is on the card. To reach
it, see fig. 19 and fig. 33.
fig. 33- Fuse housing
LCD On
In case of operating problems or trouble, the display flashes and the fault identification code appears
There are faults that cause permanent shutdowns (marked with the letter "
A
"): to restore operation it is sufficient to press
the
reset
button (detail 6 - fig. 1) for 1 second or use the RESET on the remote timer control (optional) if installed; if the
boiler does not restart, it is necessary to, firstly, eliminate the fault.
Other faults cause temporary shutdowns (marked with the letter “
F
”) which are automatically reset as soon as the value
returns within the boiler's normal working range.
