gasguard . gasguard 2 & 3 - technicalqr.com.au · 6 l0200-0653fw(b)ks3* 65 21/2 300 400 15200...

GASGUARD .

www. systemcontrol.com.au

GASGUARD 2 & 3

Automatic gas safety system for all gas users Consisting of Gas safety shut off valve and Gas safety control panel

Ref: 33071-0110

• Automatic testing of the down-stream installationto check that all valves are closed and that pipeworkand fittings are gas tight before each system start-up.

• Protection from accidental or intentional misuse by students or users.

• Short testing time, with automatic start-up if no leakage was detected fromprevious operation.

• Easy installation and wiring due to combined gas valve block design and pre-wired system.

• Easy commissioning and trouble-shooting using logic diagram.

• Remote control by BMS, if required.

• Function according to AS5601 when Fire Suppressant System is installed.

GASGUARD 2&3 Installation And Commissioning Instruction

GASGUARD .


Application For the commercial building management

GASGUARD 2&3 system can be used as the central gas safety system before building for hospital, factory, boiler room, and others gas users. Before every system start up, the GASGUARD automatically check the entire installation on gas pipe down stream of the safety shut off valve, for leaks, tight closing of valve and adequate supply pressure. The GASGUARD only supply gas once all tapping points are closed and the while system is ready for gas supply.

Commercial kitchen

Commercial boiler room

FQ

Central shut off system

Kitchen room

Boiler room

Work shopThe central GASGUARD 2 & 3 can be installed in the metering room, can be controlled remotely by BMS. Filter and gas pressure control system can be installed up stream of GASGUARD.

GASGUARD .


Installation and accessories

GASGUARD 2& 3 can be connected to any safety interlock such as: emergency stop button, fire alarm system, fan pressure switch, gas leakage detector. GASGUARD 2 & 3 can be remotely controlled by BMS.

Filter Regu GASGUARD

L0200P

GLD

PS

BMS Building management systemESB Emergency stop buttonGLD Gas leakage detectorPS Pressure switch for fanFAS Fire alarm system

BMS

ESB FAS

Ball valve

OPSO Regulator Gas detector Emergency stop button pressure switch Stop button

Optional accessory

Order No. Name Description L0201** Emergency stop button Twist/Key reset J125S10 ( VGBF) OPSO regulator OPSO regulator from 20-100mm GFK *** Gas filter Optional diameter from 15-200mm. DG *** Pressure switch Optional pressure range up to 50kpa TCSE126KM(KG) Gas detector Wall fixed sensor and panel (KM for NG, KG for LPG) TCSE301A Alarm Siren and flashing lamp 230V AC (12V DC is optional)

Please contact SCE for more product information

GASGUARD .


Technical data

Type of gas: Natural gas, LPG(gaseous), Biologically produced methane (Max. 0.1%-by-vol. H2S) or air; other gases on request. The gas must be dry in all temperature and must not contain condensate.. Inlet pressure Pe Max.: GASGUARD 2 50 kPa GASGUARD 3 100-800kPa Operating time: Opening time 5-24s

Closing time <1s

Storage temperature: 0-60℃ Working ambient temperature: -20- +60℃

No condensation permitted. Safety valve: A Class AG2726 Main voltage: 240V AC, +5/-15%, 50/60HZ; BMS interface: 24V DC. Cable gland: M20×1.5 Electrical connection: Terminal Max. 1.5mm² or plug Enclosure: IP 54 Valve housing: Aluminum, Valve seal: NBR Pipe connection: GASGUARD 2: DN65-DN200 GASGUARD 3: Rp40-DN150 Position indication contact rating: 240V AC, 3A Panel material: Plastic (special on request)

Wiring diagram

Easy installation thanks to pre-wired 2m cable with plug between control panel and gas valves by SCE. 24V DC interface for BMS, fire alarm system or any other remote control system Voltage free feedback to BMS Reserved terminals for safety interlock: emergency stop button, exhaust fan pressure switch, gas detector, etc.

GASGUARD .


Control panel and main valve dimensions

Main valve dimensions

Item GASGUARD type Conection Dimendions (mm)

Weight(kg) mm inch L D2 d2 H1 H2 1 L0200-040**** 40 1-1/2 150 - - 345 100 10-112 L0200-050**** 50 2 180 - - 350 117 11-133 L0200-065**** 65 2-1/2 290 185 18 370 135 15-284 L0200-080**** 80 3 310 200 18 378 137 17-355 L0200-100**** 100 4 350 229 18 400 163 21-456 L0200-125**** 125 5 400 250 18 450 158 26-637 L0200-150**** 150 6 480 285 23 445 173 34-838 L0200-200**** 200 8 600 340 23 475 218 52-143

GASGUARD 2 & 3 gas flow rate and pressure drop

1, Natural gas sg=0.62 2, Town gas sg=0.45 3, LPG sg=1.65 4, Air sg=1.00

Max. ∆P≤0.25kpa of GASGUARD 2 & 3 is recommended. The pressure drop can’t be higher than 10% of inlet pressure. 1kpa=10mbar

GASGUARD .


How to select a GASGUARD 2 & 3? 1, Information requirement: Please click below information to size a GASGUARD 2 & 3,

1, Application: Kitchen □ Boiler room □ Building management □ other ___________

2, Gas type: Nat gas □ LP gas □ other ____________

3, Gas pressure: 2.75kpa □ 7kpa □ 35kpa □ 100kpa □ other ________ kPa

4, Max. gas flow: __________MJ/h or ____________m3/h Gas flow direction ___________

5, Gas pipe diameter: 50mm □ 65mm □ 80mm □ 100mm □ 150mm □ other ________ mm

6, Power supply: 240V AC □ 24V DC □ Other__________________

7, BMS or fire alarm control signal: 240V AC □ 24VDC □

8, Voltage free valve position feedback signal to BMS: Yes □ No □

9, Optional or special requirement: _____________________________________________________ __________________________________________________________________________________

2, Standard models GASGUARD2:

Item Part No. Valve size Max. inlet

Max. gas [email protected] pressure drop Power

consumption W mm inch

pressure NG LPG kPa(1) m3/h MJ/h m3/h MJ/h

1 L0200-0652FW(B)KS* 65 21/2 50 125 4700 80 6400 1052 L0200-0802FW(B)KS* 80 3 50 160 6000 110 8800 1053 L0200-1002FW(B)KS* 100 4 50 250 9500 160 12800 1054 L0200-1252FW(B)KS* 125 5 50 350 13300 210 16800 1055 L0200-1502FW(B)KS* 150 6 40 550 20900 340 27200 1056 L0200-2002FW(B)KS* 200 8 20 900 34200 550 44000 105

3, Standard modes GASGUARD 3:

Item Part No. Valve size Max. inlet Max. gas flow@ 1kPa pressure drop Power

consumption W mm inch

pressure NG LPG kPa(1) m3/h MJ/h m3/h MJ/h

1 L0200-0403RW(B)KS1* 40 11/2 100 140 5300 90 7200 1052 L0200-0403RW(B)KS4* 40 11/2 400 140 5300 90 7200 1053 L0200-0503RW(B)KS1* 50 2 100 250 6000 160 12800 1054 L0200-0503RW(B)KS4* 50 2 400 250 6000 160 12800 1055 L0200-0653FW(B)KS1* 65 21/2 100 400 15200 240 19200 1056 L0200-0653FW(B)KS3* 65 21/2 300 400 15200 240 19200 1057 L0200-0803FW(B)KS1* 80 3 100 620 23500 320 25600 1058 L0200-0803FW(B)KS2* 80 3 200 620 23500 320 25600 1059 L0200-1003FW(B)KS1* 100 4 100 800 30400 480 38400 10510 L0200-1003FW(B)KS4* 100 4 400 800 30400 480 38400 10511 L0200-1253FW(B)KS1* 125 5 100 1100 41800 680 54400 10512 L0200-1503FW(B)KS1* 150 6 100 2000 76000 1100 88000 105

Remark: (1) All valves are BSP thread or DIN flange connection(2) Operation gas flow must be less than recommend Max. gas flow.(3) Power consumption at holding time when 240V AC power supplied.

GASGUARD .


4, Order Example: L0200-0803FWKS1

* If “none”, this specification is omittedSpecial requirement for GASGUARD contact System Control Engineering for more information.

Specification for GASGUARD 3: L0200-0803FWKS1, GASGUARD 3, 80mm diameter, 3" flanged connection, Max. inlet gas pressure 100kPa. NG@20000MJ/h. 24V interface for BMS or fire section. Voltage free valve position feed back to BMS. 2m pre-wired cable from panel to valves.


GASGUARD 2&3 Installation And Commissioning

Instruction

System Control Engineering Pty Ltd

Ref: 34130


GASGUARD 2&3

-Gas Safety Shut Off System

Installation and Commissioning

Instructions

Please read this introduction and the

valve manual before any operation and

keep in a safe place.

Warning:

All the work set out in these operating

instructions must be completed by authorized

trained personnel! Incorrect installation, adjustment,

modification, operation or maintenance may cause

injury or material damage.

Check delivery

Check the quantity of products are match

your order. No visible damage to goods

Check before installation

Main power voltage, electric power

consumption, ambient temperature, enclosure, inlet

gas pressure and installation position-see label on

the valve and control panel.

Valve installation position

Valve can be installed in vertical position and

horizontal position. but not upside down.

The valve must at a min. distance of 20mm from any

material whatsoevers.

Check the gas flow direction before fasting to pipe

Tightness test on the up and down stream pipe, shut

off all gas appliances before starting the GASGUARD

GASGUARD 2 Pe max:

50kpa

GASGUARD 3 Pe max:

Check the label on VK

Caution! Do not clamp the unit in a

vice. This could cause external

leakage. Only secure the pipe by

holding the octagon with a suitable

spanner.

Caution! When the valve be installed in

vertical pipe, the wire connection box

must be pointing upwards. Otherwise

the actuator will be damaged.


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System Adjustment

The bypass valve and Pressure switch are pre-set by

manufacture.

Commissioning and Troubleshooting

Please see the file of GASGUARD Commissioning

and Troubleshooting.

Important! Before commissioning, the down stream

pipe pressure must be released and all pipes must be

leak-proof.

Maintenance of System

Test For Internal and External leakage

Check for any external leaking in the pipe and valve

connections and the valve body. Check for any

internal leaking of the valve, if so, change to a new

valve.

Function Check

Follow the instruction of Commissioning and

Trouble- shooting to do the function check.

Control Panel Installation

Wall mounting panel dimension and screw size see

below.

Key Switch

Stop button

Power On Press & Hold for start

Ready to Test

Gas On when Lit

SCE GASGUARD

200mm

120

mm

Gas Off when LitOff On

Optional

75mm

125mm

89m

m

188mm

4×4mm holes for screw the lower part of panel on the wall. Ø 3.5×25mm screw are recommended

4 of screw to open the panel

Wiring

GASGUARD prewired with 2m lead with 3pin plug for

power supply. If no power point is available change

to hard wire.

2m prewired cable with quick connection plug from

the valves to panel, 2m extension cable is optional

(L0200-PC03).

Wire Selection

Wire size is Max. 1.5mm2

Flexible wire is recommended.

This unit MUST be protected from water and

U.V.

For more details of valves and control panel,

see the Kromschroeder product instructions

and SCE wiring drawing.

Caution! In order to ensure smooth and

safe operation: check the inlet and outlet

tightness and function of the GASGUARD

every year.

Caution! GASGUARD 2 PeMax. is 50kpa,

operating PeMax. is 35kPa.Any over

pressure operation will cause

unrepairable damage to the valves.

Caution! Commission may only be carried

out by an authorised fitter or authorised

person. The unit may only be released for

unsupervised operation once

commissioning has been completed

correctly.

No

No

No

No No

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Check valve is installed with correct voltage coil and gas flow direction.

No Yes

Is leakage test OK for all of the down- stream gas pipework?

Install the valve properly by following the instructions

Test & fix any leakage point on the pipe.

Is GASGUARD wired correctly? Rewire following the wiring diagram

Relieve down stream pipe pressure and shut off all gas appliances

Reset all safety interlocks: fire alarm system, Emergency stop button, BMS, etc.

Turn on the GASGUARD by key switch

Is the “Power ON” and the “Gas OFF”

lamp on?

If only “Gas OFF” is lit, check the “Power ON” globe

“Power ON” and “Gas ON” light immediately. Check the valve for any internal leakage

If only “Power ON” is lit, reset the stop button on panel or check “Gas OFF” lamp

Are you ready?

No light on? Check the power supply, interlock or fuse

GASGUARD Commissioning and Troubleshooting Follow the procedure below to commission your GASGUARD correctly …… and safely.

• All installation and wiring must be carried out by a licensed plumber and electrician! • All the work described in these instructions may only be completed by authorized, trained personnel! • Warning! Incorrect installation, adjustment, modification, operation or maintenance may cause injury or material damage

No

Yes Yes

Yes Yes

Yes

Yes

Yes

Turn on the gas appliances to check system is functioning correctly

If fitted, turn off and reset system using “Stop button” to check

If fitted, turn off and reset system using interlocks or BMS.

Shut off system and relieve down steam gas pressure, restart system, double check the testing time.

Check for any down stream leakage (pipe fittings, appliance turned on etc.) or bypass valve not functioning.

You have set up the GASGUARD properly

No No Press and hold “Start” button.

“Gas ON” is Lit .

Yes

No

Check function of main gas valve

Name _______________________ Signature_____________________ Date: ___/___/_______ Service Phone: ________________ Company :_____________________ ______________________________

Write down the testing time on the side label

“Gas ON” is not lit after pressing the “Start” button for long period

“Gas OFF” lamp off, but “Gas ON” not lit. Check the “Gas ON” globe

Check the gas supply pressure

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GASGUARD .


Detail information on this system or other products, please contact System Control Engineering pty. Ltd local office or visit www.systemcontrol.com.au

We reserve the right to make technical modification in the interests progress

Victoria New South Wales Queensland South Australia New Zealand Tel: (03) 9845 0000 Tel: (02) 9838 9966 Tel: (07) 3801 4223 Tel: (08) 8401 9870 Tel:(09) 9636 1401 Fax: (03) 9878 5337 Fax: (02) 9838 8788 Fax: (07) 3801 4229 Fax: (08) 8312 4963 Fax:(09)9636 1525

Distributed by:

GASGUARDOPERATING INSTRUCTIONS

- To be installed adjacent to the control panel -

1. Turn OFF all gas appliances and outlets which are served by this

GASGUARD

2. Check that the Inlet gas supply is turned ON

3. Turn the Key Switch ON. The WHITE Power On lamp will come on.

If the WHITE lamp does not come on, check any applicable circuit

breakers or contact your electrician.

4. Now, either the YELLOW or GREEN lamps should be lit.

If neither lamp is lit, reset any Emergency Stop switches or other

devices that are interlocked with the control panel. There may be one

on the top right of the panel and/or in locations remote from the panel.

5. If the GREEN, Gas On lamp is lit, the gas supply has automatically detected

that the system is good and you can use your gas appliances, as required.

6. If the YELLOW Ready to Test light is illuminated, press and hold the GREEN

button until this GREEN Gas On button is lit.

See below for the approximate time you must hold this button to

pressure test your system.

7. If the GREEN Gas On lamp does not come on, go to Step 1 and again check

that ALL gas appliances and valves are turned off.

8. If the above operations do not restore your gas supply, you may have a gas

leakage that must be checked by a qualified person.

Your Service Contact …………………………………………………………

Approximate Hold Time (Item 6) for this system …….. seconds / minutes

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34128-310310

gasguard . gasguard 2 & 3 - technicalqr.com.au · 6 l0200-0653fw(b)ks3* 65 21/2 300 400 15200...

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