Plant conditions that are hazardous for people or for the appliance. If any of the follow-
ing hazardous situations arises, the Technical Assistance must not carry out the "first start
up":
appliance installed indoors;•
appliance installed close to combustible substances or surfaces or in any case in •
conditions of bad accessibility or not allowing safe maintenance operations;
appliance started and stopped by power supply switch and not by controller or by •
permissive;
damages or failures of the appliance due to transportation or installation;•
smell of gas due to possible leakages;•
all situations with non-compliances considered potentially dangerous.•
Plant anomalies. If any of the following situations exists, the Technical Assistance may
carry out the "first start up" at his choice, but the appliance must be left off until the
anomalies are removed:
installations (not potentially hazardous) not carried out according to sound work-•
manship practices, installations (not potentially hazardous) not complying with
current national and local regulations;
installations (not potentially hazardous) not carried out according to good •
workmanship practices, not complying with the instructions provided by the
manufacturer;
installations that can cause operational troubles on the appliance.•
First start-up procedure
Check that power supply voltage is correct.1.
Check that water flow rate is correct.2.
Check that water pressure with the appliance at rest is 2 bar.3.
Purge air. To facilitate air purging operations, the appliance is equipped with a 4.
manual air vent.
Let the circulation pump run for at least 30 minutes. Check again water filter clean-5.
liness and clean if necessary.
Check again water pressure.6.
The appliance is delivered already regulated for the type of gas requested. Anyway, the
combustion parameters must ALWAYS be checked and set during the first start up.
The type of gas for which the appliance is set up can be identified from the sticker posi-
tioned on the gas pipe inside the unit (see detail M, Figure 6.2 Gas changeover → 51).
The nozzles required to change the gas type to G30 and G31 are supplied together with
the appliance.
During the first start-up procedure it is in any case necessary to:
set the menu 4 parameters (see Table 6.1 Menu 4 • → 48)
check the dynamic gas mains pressure•
check and adjust the appliance’s combustion parameters•
