Immergas NIKE Mini 28 Manual De Instrucciones página 90

1.8 Putting the gas system into service.
To put the system into service, proceed as follows:
ES
- open windows and doors;
- avoid making sparks or naked flames;
- vent all air from pipelines;
TR
- check the tightness of the internal system, according to the indications
provided by the standard.
CZ
1.9 Boiler start-up (ignition).
For issue of the Declaration of Conformity in accordance with Italian
Law, the following operations must be carried out to put the boiler into
service:
HU
- check the tightness of the internal system, according to the indications
provided by the standard;
- ensure that the type of gas used corresponds to boiler settings;
RU
- switch on the boiler and ensure correct ignition;
- make sure the gas flow rate and pressure values correspond to those given
in the handbook (see page 97);
IE
Available head at system (with automatic by-pass).
A = Head available on third speed setting (with automatic by-pass)
B = Head available on second speed setting (with automatic by-pass)
Pump release (when required). If the pump is blocked after a prolonged pe-
riod of disuse, loosen the front cap and rotate the motor using a screwdriver.
Take great care during this operation to avoid damage to the motor.
1.11 Optional kits available.
• System on/off cock kit (optional). The boiler is designed for installation
of system shutoff valves to be placed on the flow and return pipes of the
connection assembly. This kit is particularly useful for maintenance as it
allows the boiler to be drained separately without having to empty the
entire system.
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- check that rooms are correctly ventilated;
- check draught during regular boiler operation, by means of, for example,
a vacuum meter placed directly at the fumes outlet;
- make sure there is no backflow of fumes, even during operation of
eventual electric fans;
- ensure that the safety device trips in the event of gas supply failure and
check activation time;
- check operation of the main switch located ahead of the boiler.
The boiler must not be put into service in the event of failure to comply
with any of the above.
N.B.: the boiler preliminary check must be carried out by a qualified technician.
The boiler warranty is valid from the date of testing.
The test certificate and warranty is to be issued to the user.
1.10 Circulating pump.
Nike Mini series boilers are supplied with a built-in circulating pump with
3-position electric speed regulator. The first speed is not recommended
due to the low flowrate. To ensure optimal boiler operation, with new
systems (single-pipe and modul) it is advisable to use the circulating pump
at high speed (third speed). The circulating pump is already fitted with a
condenser.
A
B
Flow rate (l/h)
• Polyphosphate dispenser kit (optional). The polyphosphate dispenser
prevents the formation of scale and preserves the original conditions of
heat exchange and hot water production. The boiler has a provision for
application of the polyphosphate dispenser kit.
The above kits are supplied complete with instructions for assembly and
use.