Robur GAHP Line AR Series, Installation, Use And Maintenance Manual

Page: 74 / 100

GAHP-AR – Installation, start-up, use and maintenance manual
70
Edition: 2014-08
Regulation of gas flow to the burner and activation
To carry out the first activation of the appliance, it is necessary to perform the operations
described below, proceeding according to the following sequential order.
•
Open the gas supply tap to the plant and ascertain that there is no smell of gas
(indicating possible leaks).
•
Close the gas tap and check the static gas mains pressure (as per the specific
procedure "Regulation of gas flow" set out further on: from point 1 to point 6).
•
Prepare the units of the appliance for the operation of regulation of gas (as per the
specific procedure described further on: from point 7 to point 9).
•
Start the appliance electrically, after:
- ascertaining one final time that there is no smell of gas;
- activating the external disconnecting switch of the mains power supply (“GS”, provided
by the electrical system installation technician on a suitable panel) moving it to the
"ON" position (point 10 of the specific procedure);
•
Start up the DDC electrically, if provided (point 10 of the specific procedure; for this
operation, see the specific manual for the installation technician – book 1);
•
Carry out activation of the appliance via the on/off commands (or via the DDC, if
connected);
(point 11 of the specific procedure; if the appliance is connected to the DDC, for this
operation consult the specific final user manual – book 2);
•
Proceed with regulation of the gas pressure to the burner of the appliance (as in the
specific procedure set out further on: from point 13 onwards).
•
Check the dynamic gas mains pressure (if possible on the appliance that is furthest
from the point where the plant is connected to the mains) by performing the following
points in order:
stop the appliance
connect the manometer (points 1 and 2);
start the appliance again (points 11 and 12);
read the dynamic mains pressure on the manometer and check that this value satisfies
the requirements of point 4 (see also the paragraph “GAS SUPPLY SYSTEM” on page
37).
•
Carry out the regulation of the operating parameters of the plant.
In the first activation stage, on the display of the electronic board of the appliance
(and/or on the display of the DDC, if connected), an operating code might be
visualised.
If the operating code is generated by the electronic board of the appliance, see the
list of codes in Table 27 on page 96. If the operating code is generated by the DDC,
see the list of codes given in the "installation technician manual – book 1" of the
DDC (supplied with it).
Successful first activation ONLY certifies the correct operation of the appliance
(and of the DDC, if connected).
It DOES NOT CERTIFY that the plant conforms to current legislation.