ITRON Axonic, Руководство пользователя, Страница: 5 / 76

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3.2 - Mounting instructions
• Never carry out welding or drilling work near the meter.
• All handlings operations must be made with the lifting ear of the product. If there are no lifting ear, handling operations can be
made by hand.
• Leave the meter in its original package until all connection, insulating, painting and cleaning tasks have been performed.
• Always install the meter according to the mounting position indicated on the nameplate of the calculator (supply or return or
cold or warm line). It is recommended that stop valves are fitted before and after the flow sensor to simplify dismantling.
The flow sensor should be installed in a convenient position for service and operating personnel.
• The flow sensor can be installed in both horizontal and vertical pipe sections, any position is allowed.
• Aluminum rib of electronic compartment should be visible in case of thermal insulation. (See Fig N°1)
• For medium temperatures above 130°C a flow meter with thermal insulation must be installed in that way, that the electronic is
beside the pipe and not above. (See Fig N°2)
• Ensure that the flow sensor is always filled with liquid after installation. (See Fig N°3)
• By approval calming sections before and after the flow sensor are not required. Nevertheless we recommend to design
calming sections 5xDN if the space for installation is available.
• The heat meter must be protected against shocks and vibrations which might occur at the place of installation.
• When charging the pipes with water, isolation valves must be opened slowly.
• Flange connections of the meter must match with the nominal diameter DN and nominal pressure PN (according to EN 1092)
of the corresponding counterparts of the pipes. The metering unit must not be subject to excessive tensions caused by
pipes or molded parts. The pipes of the heating system must be secularly fastened before and after the flow meter. In case
of flanged connections, all bolts must be used and tightened. All bolts, nuts and gaskets used must comply with the nominal
with DN, the pressure level PN, the maximum admissible temperature and pressure.
• Installation of AXONIC. Versions PN16 and PN25 with dedicated seat of moving flanges. (See Fig N°4)
• CF 51 and CF 55 calculators can be attached to the flowmeter using the adapter supplied with the flowmeter. (See Fig N°5)
• For repair or reconditioning flow meter have to be sent back to the manufacturer or to a repair shop authorised by the
manufacturer.
• The device must be replaced in case of fire, explosion at its close proximity.
• Keep the cable length as short as possible.
3.3 - Gaskets
DN PN Reference Type ø A ø B
65
16-25
40
A4003392
A4003393 IBC
SR
127
109
77
80
16-25
40
A4003441
A4003442 IBC
SR
142
120
89
100
16-25
40
A4003443
A4003444 IBC
SR
168
149
115
150
16-25
40
A4003446
A4003447 IBC
SR
224
203
169
*Thickness following NF EN 1514-1 and in accordance with the supplier
2*
ø
A
ø
B