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2.8 COMMISSIONING THE BOILER
ATTENTION
The operations listed below must be carried out only by professionally qualified personnel and
only in the presence of professionals.
For the commissioning of the system, the installer must refer to the UNI 7129-4 Standard. In particular, for new
systems, it is recommended to open doors and windows and ventilate the room well, avoid the presence of open
flames or sparks, purge the gas system from the air and check the tightness of the internal system according to the
indications given in the standard UNI 7129. Below are some general operations for a final verification
:
At the end of the commissioning operations, by the installer, the Rinnai authorized technical assistance
center will be able to perform the initial free test necessary for the activation of the Warranty. A copy of the
test certificate issued by the technical assistance center must be provided to the User; this certificate must
be carefully kept together with the product documentation and presented on request during the subsequent
technical maintenance operations.
The Rinnai authorized technical service center must commission the boiler as:
•
verify the Declaration of Conformity issued by the installer;
•
check the correspondence between the gas used and the one for which the product is prepared;
•
check that the electrical mains connection (230V, 50Hz) and grounding are correctly performed;
•
verify that the heating system is loaded correctly and at the correct pressure (0.5 ÷ 1.5bar);
•
check that the deaeration valve is working and the system is well drained;
•
make sure that the boiler operates correctly;
•
check the gas pressures (both for DHW & CH operation) are correct;
•
c
heck the CO
2
emissions, both max
imum and minimal flows;
•
check if the intake/exhaust system is properly connected and clear of obstruction;
•
seal the gas regulation devices (in case of variation);
•
check the hydraulic circuits tightness;
•
check the aeration in the water heater’s location.
In case of negative evaluation of one of these conditions, the commissioning cannot be performed.
Inspection type
Verification procedure
Notes
General inspections
1. Verify that the product has been installed in accordance with
the instruction manual.
2. Verify that the hydraulic circuits are clean before connecting
or using the device.
3. Check the electrical connection, the flue system,
eventual gas or water losses.
The installation must be performed in accordance
with the builder’s delle istruzioni del costruttore.
Remove deposits, sediments,
dirt or cutting waste.
Filling phase of
systems CH and DHW
1. Open the interception valve of the hydraulic circuits.
2. Open the load tap of the device.
3. Fill the heating circuit until the pressure gauge is on the level
(0.5~1.5bar).
4. Open the radiator or CH manifold’s vent valves
5. Vent the air of the circuit until only water flows out.
6. Plug the device and wait for the end of the automatic
venting cycle.
7. Press the buttons CH and DHW to adjust the desired
temperature.
Check for eventual water losses.
Condensate drain
Thermal insulation
and trimmings
1. Check the preparation of the condensate drain.
In case of improper connection, the device
could be damaged.
1. Verify that the pipes are correctly insulated
and protected against frost.
2. Clean the location when the procedure is completed.
