33
R1K 50 RAIN - RAD - ING - Man.Inst. - 1901.1_SK.3_firm.L224C_AHS
2 Mes
s
a in funzione della caldaia_MIAH4_PM_EN
2. FIRST START-UP
SUPPOR
T
CENTRE
2.1.2. BOILER COMMISSIONING
WARNING
Make sure that the system is correctly
filled.
Proceed with boiler commissioning as follows:
Make sure the gas feed valve is switched off
› Power the boiler.
THE START-UP SYSTEM WILL AUTOMATICALLY
ACTIVATE THE SYSTEM AIR RELIEF CYCLE
FUNCTION DISPLAYED ON SCREEN WITH CODE
“F33” (ONLY AT FIRST START-UP WILL LAST FOR
5 MINUTES*). When function “F33” is active, the
pump is enabled and the burner start-up request
is disabled. The boiler can work normally only after
completing the operation.
› Make sure the circulating pump is unblocked.
› If it should be blocked, wait for the circulating
pump to activate the automatic reset (lasting 3
min.)
› If the circulating pump should be still blocked,
activate the circulating pump automatic reset
again (further 3 minutes), and switch off the
power supply and switch it on again.
› Open the gas tap.
› Use the button ‘
’ to select the desired
operation mode. If the symbol is displayed fixed,
it means that the function has been activated.
› The burner will start as soon as the thermostat
contact is closed ;
› If the flame is missing, the board will repeat the
start-up operations after post-ventilation (20
seconds).
› You might have to repeat the start-up operation
several times to release all the air inside the gas
tube. Before repeating the operation, wait at
least 5 seconds from the last start-up attempt
and unlock the boiler from “E01” error code by
pressing the Reset ‘
’ key.
(*)
The boiler performs the system venting cycle function
(5 minutes) only during the first starting. After every water
pressure reset the boiler will automatically perform a
reduced system venting cycle (2 minutes). During this
function the display shows F33 code. The correct boiler
operation will be allowed only after this operation has been
completed.
