Coster GCR 120, GCR 115, GCR Series Manual Reset Normally Closed Solenoid Valve For Gas

DESCRIPTION

This solenoid valve is made to guarantee the gas interception either for gas detector signals
(methane, lpg, carbon monoxide and so on) and safety thermostats, or for an electric black out.
In order to be more reliable this solenoid valve can be reset only when electrically supplied and
only if the gas detector doesn’t send any danger signal.
Simply powering the coil does not open the valve. The reset mechanism has to be operated
by hand (see MANUAL RESET).

INSTALLATION

The solenoid valve is in conformity with the Directive 94/9/CE (said Directive ATEX 100 a) as device
of group II, category 3G and as device of group II, category 3D. For this reason it is suitable to be

installed in the zones 2 and 22 as classied in the attachment I to the Directive 99/92/EC.
To determine the qualication and the extension of the dangerous zones, see the norm EN 60079-10.

The device, if installed and serviced respecting all the conditions and the technical instructions of

this document, is not source of specic dangers: in particular, during the normal working, is not
forecast, by the solenoid valve, the emission in the atmosphere of inammable substance in way

to cause an explosive atmosphere.

WARNING: all installation/wiring/maintenance work must be carried out by skilled

staff.

• The gas supply must be shut off before installation.

• Check that the line pressure DOES NOT EXCEED the maximum pressure stated on the product
label.

• They are normally installed upstream of the regulator devices and must be installed with the
arrow (on the body of the device) facing towards the user appliance. They will function equally
effectively if installed vertical. They must not be installed upside down (with the coil underneath).

• During installation take care not to allow debris or scraps of metal to enter the device.

• If the device is threaded check that the pipeline thread is not too long; overlong threads may
damage the body of the device when screwed into place. Do not use the coil for leverage when

screwing into position; use the appropriate tool. Assemble pipe and ttings which are consistent

with solenoid valve connection threads.

• If the device is anged check that the inlet and outlet counteranges are perfectly parallel to
avoid unnecessary mechanical stresses on the body of the device. Also calculate the space

needed to t the seal. If the gap left after the seal is tted is too wide, do not try to close it by
over-tightening the device’s bolts.

• Always check that the system is gas-tight after installation.

ELECTRICAL CONNECTIONS

• Before making electrical connections, check that the mains voltage is the same as the power

supply voltage stated on the product label.

• Disconnect the power supply before wiring.

• Wire the connector with H05RN-F 3X0.75mm² cable outside Ø from 6.2 a 8.1mm, taking care to

ensure that the device has IP65 protection.

• Use cable terminals when wiring the connector (see g. 4).

• Connect the power supply to terminals 1 and 2 and the ground wire to terminal

The coil is also suitable for permanent power supply. In case of continuous duty, it is absolutely
normal for the coil to heat up.
The coil should not be touched with bare hands after it has been continuously powered for more
than 20 minutes. Before maintenance work, wait for the coil to cool or use suitable protective
equipment.

In the case the valve is equipped with the CPI SWITCH (picture 3) make the connections

complying with the coloring wires indicated here below:

• black wire: common

• red wire: signal with the microswitch at rest (the valve is open)

• white wire: signal with pushed microswitch (the valve is closed)

it is suggested to reset and close twice/thrice the valve (removing voltage) to check the proper
CPI switch signal.

.

TECHNICAL DATA

• Use : not aggressive gases of the three families (dry gases)

• Environment temperature : - 20°C + 60°C

• Max supercial temperature * : 80 °C

• Power supply voltage : 12 Vdc, 12 V/50 Hz, 24 Vdc, 24 V/50 Hz, 110 V/50-60 Hz, 230

V/50-60 Hz

• Power supply voltage tolerance : -15% ... +10%

• Power absorption : see table

• Max. working pressure : 500 mbar

• Closing time : < 1 s

• Degree of protection : IP65

• Class : A

• Group : 2

• Threaded connections Rp : (DN 15 ÷ DN 50) according to EN 10226

• Threaded connections NPT : on request

* The maximum supercial temperature is calculated powering the solenoid valve at the nominal

tension increased of 10% and at the maximum environmental temperature.

CPI SWITCH TECHNICAL DATA

• Switching voltage : max 250 V (Vac)

• Switching current : max 2 A

• Degree of protection : IP67

MANUAL RESET (see g. 1 and 2)

To reset the solenoid valve, pay attention there is tension and unscrew completely the possible
protective small cap.

Close the ow downstream the solenoid valve to grant the pressure balance between upstream and

downstream during opening.
Push the reset handgrip (6) and wait for an istant the balance between the inlet and outlet pressure
of the valve up to the hooking.
Rescrew in the original position the protective small cap and possibly seal it in that position.

SERVICING (see g. 1 and 2)
In all cases, before performing any internal checks make sure that:

1. the power supply to the device is disconnected

2. there is no pressurised gas inside the device
unscrew by a screwdriver the xing screws (9) and, with care, take the cover (2) off the body (5) of
the valve, then control the obturator and if it is necessary change the rubber made seal component
(3). Then clean or blow the lter (16) or change it if necessary; then assemble doing backward the
same operation.

Diagram calculated with P1 = 50 mbar

EXAMPLE OF INSTALLATION

1. GCR manual reset solenoid valve

2. SM series jerk handle ON/OFF valve

3. FRG/2MC series lter pressure regulator

4. Manometer

5. Gas detector

6. Lever for remote SM ON/OFF valve control

Overall dimensions in mm

Connections A B C

GCR DN 15 70 163 70

GCR DN 20 70 163 70

GCR DN 25 70 163 70

GCR DN 32 160 215 140

GCR DN 40 160 215 140

GCR DN 50 160 245 140

LOAD LOSS DIAGRAM

1) methane

2) air

3) town gas

4) lpg

For any problems or information concerning installation/wiring/maintenance
operations, see address and telephone numbers on the back page.

pipe

The above-said operations must be carried out only by qualied technicians.

user

g. 1 - abb. 1 GCR DN 15 - DN 20 - DN 25

g. 2 - abb. 2 GCR DN 32 - DN 40 - DN 50

Coils and connectors for GCR solenoid valve

Valve code

Connec-

tions

Standard With CPI

GCR 115 - Rp DN 15

GCR 120 - Rp DN 20

GCR 125 - Rp DN 25

GCR 132 GCR 132C Rp DN 32

GCR 140 GCR 140C Rp DN 40

GCR 150 GCR 150C Rp DN 50

GCR 215 - Rp DN 15

GCR 220 - Rp DN 20

Tension

Coil + connec-

tor code

12 V/50 Hz B13110

Coil stamping

BO-0030

12 V DC R

Connector

type

12 Vac,

24 Vac

Rectier

Powwer
absorp-

tion

8 VA

Via San G.B. De La Salle, 4/a

20132 MILANO

COSTER TECNOLOGIE ELETTRONICHE S.p.A.

tel [phone]

www.coster.eu

MANUAL RESET NORMALLY CLOSED

SOLENOID VALVE FOR GAS

GCR

EN 161 EC approved -

In conformity with Directive Gas

2009/142/EEC

g. 3 - abb. 3 GCR DN 32 - DN 40 - DN 50 With CPI

g. 1, 2 and 3

1. Electrical connector

2. Cover

3. Seal washer

4. Obturator

5. Body valve

6. Reset pin

7. Cover for reset pin

8. Filtering organ

9. Seal O-Ring

10. Fixing cover screws

11. Closing spring

12. Movable plunger

13. Electrical coil

14. Coil xing screw

g. 4 - abb. 4

GCR 225 - Rp DN 25

GCR 232 GCR 232C Rp DN 32

GCR 240 GCR 240C Rp DN 40

GCR 250 GCR 250C Rp DN 50

GCR 315 - Rp DN 15

GCR 320 - Rp DN 20

GCR 325 - Rp DN 25

GCR 332 GCR 332C Rp DN 32

GCR 340 GCR 340C Rp DN 40

GCR 350 GCR 350C Rp DN 50

GCR 415 - Rp DN 15

GCR 420 - Rp DN 20

GCR 425 - Rp DN 25

GCR 432 GCR 432C Rp DN 32

GCR 440 GCR 440C Rp DN 40

GCR 450 GCR 450C Rp DN 50

GCR 615 - Rp DN 15

GCR 620 - Rp DN 20

GCR 625 - Rp DN 25

GCR 632 GCR 632C Rp DN 32

GCR 640 GCR 640C Rp DN 40

GCR 650 GCR 650C Rp DN 50

GCR 815 - Rp DN 15

GCR 820 - Rp DN 20

GCR 825 - Rp DN 25

GCR 832 GCR 832C Rp DN 32

GCR 840 GCR 840C Rp DN 40

GCR 850 GCR 850C Rp DN 50

12 Vdc B13060

24 Vdc B13111

24 V/50 Hz B13059

110 V/50-60 Hz B13098

230 V/50-60 Hz B13058

BO-0030

12 V DC R

BO-0040

24 V DC R

BO-0040

24 V DC R

BO-0075

110 V RAC

BO-0050

220 V RAC

Normal 8 VA

Normal 8 VA

12 Vac,

24 Vac

8 VA

Rectier

110 Vac,

230 Vac

8 VA

Rectier

110 Vac,

230 Vac

9 VA

Rectier

II 3G - II 3D

COSTER TECNOLOGIE ELETTRONICHE S.p.A.

0051

COSTER T.E. UK BRANCH

5 Shaftesbury Street South Tel. [phone]
Sir Francis Ley Industrial Park Fax [phone]
Derby DE23 8YH England

E-mail: [e-mail]

Head Ofce & Sales

Via San G.B. De La Salle, 4/a Tel. [phone]
20132 - Milano Fax [phone]

E-mail: [e-mail] Web: www.coster.eu

INFORMAZIONI TECNICHE

Numero Verde

800

COSTER

267378800

MADE IN ITALY

Mod. IT/286.00