Asco 262 Serie Instructions De Mise En Service Et D'entretien

Installation and Maintenance Instructions
2-way normally closed GAS shut-off valves, Rp 1/8 and Rp 1/4
DECLARATION
HEREWITH WE DECLARE THAT THE BULLETIN
G262K002S1NG0 AND E262K090S1NG0 VALVES
HAVE BEEN TESTED AND NOW COMPLY WITH THE
ESSENTIAL REQUIREMENTS DETAILED IN ANNEX 1
OF THE EUROPEAN GAS APPLIANCE DIRECTIVE
(2009/142/EC) AND CARRY AN EC TYPE CERTIFICATE
NO. CE 645926.
WARNING
READ THE INSTRUCTIONS BEFORE USE. THIS
CONTROL SHALL BE INSTALLED IN ACCORDANCE
WITH THE RULES IN FORCE.
DESCRIPTION
Bulletin G262K002S1NG0 and E262K090S1NG0 valves
are designed for use in Class A, Group 2, gas shut-off appli-
cations, and have a Certifi cate of Conformity to EN 161 "Au-
tomatic shut-off valves for gas burners and gas appliances".
Series 262, 2/2 NC: Solenoid valves with threaded Rp 1/8
and Rp 1/4 connections. Brass body.
OPERATING CHARACTERISTICS
Valve function: Normally closed
Valve is closed when solenoid is de-energized and open
when solenoid is energized.
Working pressure range:
1/4: 0 to 2100 mbar
1/8: 0 to 2760 mbar
Safe body static pressure: 10 bar
Ambient temperature range: 0 to +60°C
Maximum fl uid temperature: 60°C
Operating time: Less than 1 second
Closing time: Less than 1 second
Rated fl ow: G262K002S1NG0: 1,9 m 3 /h at 100 mbar
E262K090S1NG0: 3,63 m 3 /h at 100 mbar
Gas family: 1, 2 & 3
VA holding: 16 (50 Hz) 15 (60 Hz)
VA inrush: 24 (50 Hz) 23 (60 Hz)
ASSEMBLY
MOUNTING POSITION:The valves are designed to operate
when mounted in any position, however optimum life and
performance will be obtained with the solenoid mounted
vertically above the valve body. This reduces the possibil-
ity of foreign matter accumulating in the core tube area.
The components ASCO are intended to be used only with-
in the technical characteristics specifi ed on the nameplate
or in the documentation. To avoid damage to the equipment,
make sure to prevent the liquid from solidifying at low tem-
peratures and stay within the maximum and minimum tem-
perature limits.
Modifi cations to the equipment may only be made after
consulting the manufacturer or his representative.
Before installation, depressurise the piping system and clean
internally.
The direction of fl ow is indicated by markings on the valve's
body and in the documentation.
series 262
Pipe connections have to be in accordance with the size
indicated on the body, label or in the product leafl et.
PIPING: To protect the valve, a strainer should be installed
in the pipe line as close to the inlet connection of the valve
as possible. The maximum strainer hole dimension should
not exceed 1,5mm and should prevent the passage of a
1 mm pin gauge.
CAUTION :
• Reducing the connections may cause improper operation
or malfunction.
• For the protection of the equipment, install a strainer or fi lter
suitable for the service involved in the inlet side as close to
the product as possible.
• If tape, paste, spray or a similar lubricant is used when
tightening, avoid particles entering the system.
• Use proper tools and locate wrenches as close as possible
to the connection point.
• To avoid damage to the equipment, DO NOT OVERTIGHTEN
pipe connections. Observe a maximum tightening torque of
5 to 7 Nm.
• Do not use the valve or solenoid operator as a lever.
• Pipe connections should not apply any force, torque or strain
to the product.
ELECTRICAL CONNECTION
All electrical connections must only be made by trained and
qualifi ed personnel and have to be in accordance with the
local regulations and standards.
Nominal voltage is marked on the valve, the nominal wattage
being 8.1 W for 50 Hz and 6.1 W for 60 Hz. All valves are
designed to operate satisfactorily within the voltage range of
85% to 110% of nominal.
CAUTION:
• Before any intervention, turn off the electrical current to
power off the components.
• All screw terminals must be properly tightened before put-
ting into service.
• Depending on the voltage, electrical components must be
grounded according to local standards and regulations.
• To ensure ground continuity of the coil, make sure it is cor-
rectly positioned during assembly/disassembly (no. 1).
The equipment is electrically connected as follows:
• Detachable connector to ISO 4400 / EN 175301-803, form A
(On proper connection and when the (supplied or selected)
connector used is IP65- or IP67-rated, the solenoid valve
will have IP65 or IP67 protection).
PUTTING INTO OPERATION
Before pressurising the circuit, perform an electrical test. In
case of solenoid valves, energise the coil a few times and
notice a metal click signifying the solenoid operation.
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Most solenoid valves are equipped with coils for continuous
duty service. To prevent the risk of personal injury, do not
touch the solenoid operator which can become hot under
normal operating conditions. If the solenoid valve is easily
accessible, the installer must provide protection against
accidental contact.
Our solenoid valves and pilot valves are designed to operate
with devices compliant with EN 61131-2 standard.
SOUND EMISSION
The emission of sound depends on the application, fl uid
and type of equipment used. The exact determination of the
sound level can only be carried out by the user having the
valve installed in his system.
Maintenance of ASCO products is dependent on service
conditions. Periodic cleaning is recommended, the timing of
which will depend on the fl uids used and the service condi-
tions. During servicing, the components must be checked for
excessive wear. A complete set of internal parts is available
as a spare parts or rebuild kit. If a problem occurs during
installation/maintenance or in case of doubt, please contact
ASCO or authorised representatives.
Disassemble the parts in the order indicated in the views in
these I&M Instructions
1 - Remove the retaining clip (1), maintain pressure downwards,
and the coil (2) (see coil codes on "CONNECTION" page).
2 - Remove the fl at spring (10).
2 - Unscrew the core-tube unit (3) and separate it from the
body (4).
3 - Remove the core/spring unit (5)(6) and the seal (8).
4 - Clean or replace all parts.
Reassemble the parts in the reverse order of disasseambly.
Make sure the retaining clip is correctly positioned on the
coil (see drawing).
The exhaust must be connected to prevent contamination of
the inside of the solenoid valve.
NOTE:
1 - Grease the seal (8) and lightly coat the outer circumfer-
ence of the core with a lubricant conforming to standard
AFNOR ISO TR 3498 categories HL and FC.
2 - Make sure the core-tube unit is properly tightened at a
torque (a).
3 - Replace fl at spring, coil and retaining clip. Connect the
connector assembly.
4 - After reassembly, operate the solenoid valve several times
to ensure the valves open and close properly.
5 - Reassemble the piping connections and tighten at a
maximum torque of 5 to 7 Nm.
516606-001
Installation and Maintenance Instructions
2-way normally closed GAS shut-off valves, Rp 1/8 and Rp 1/4
series 262
FUNCTION
MAINTENANCE
DISASSEMBLY
REASSEMBLY
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516606-001