1000S+ User Manual
Contents
1. Under normal working conditions this LED is off LED will illuminate YELLOW when auto shut down has occurred OFF OK YELLOW auto shut down EM Stop LED If the Emergency Shut Off button either remote or on the panel is pressed the LED will show YELLOW Gas and Electric services will be turned Off The EM Stop button must be re sert before restarting the system OFF OK YELLOW EM Stop button pressed Gas Detected LED Under normal working conditions this LED is off If Methane Carbon Monoxide or LPG is detected relevant gas detector required the LED will show RED The Gas valve will turn Off OFF OK RED Gas detected CO2 High Under normal working conditions this LED is off If the concentration of CO2 in the air is too high relevant detector required the LED will show RED and the Gas valve will turn Off OFF OK RED The concentration of CO2 is too high USING THE EMERGENCY SHUT OFF The Emergency shut off button is located on the front of the panel There is also a facility for remote shut off buttons to be wired in series The Emergency shut off button s will cut off the gas supply when activated To reinstate the system the Emergency shut off button s will need to be reset and the panel restarted BMS INTEGRATION The Merlin 1000S can be integrated with a BMS to make or break a circuit on gas on gas off valve open or valve closed This will tell the BMS whether or not the kitchen has use of the ga2. of the S amp S Logo located in the bottom right corner of the panel will illuminate When no power is present this LED will not light up RED OK OFF No power to 1000S Gas LED When the Gas button is pressed the Gas LED will flash slowly and the Merlin 1000S will check the installation for gas leaks If gas proving is successful the gas valve will open and the Gas LED will illuminate BLUE BLUE Gas On FLASHING SLOW panel is checking the integrity of the gas installation FLASHING FAST Gas Off Gas button enabled OFF Gas Off Gas Button disabled Electric LED When Electric service is turned On the Electric LED will illuminate BLUE BLUE Electric On FLASHING Electric Off Electric button enabled OFF Electric Off Electric button disabled Testing LED This LED is show GREEN when the panel is checking the integrity of the gas installation GREEN proving the gas line do NOT operate any appliances Test Fail LED Under normal working conditions this LED is off When the panel detects a gas leak the LED will illuminate YELLOW Gas valve will remain closed OFF OK YELLOW gas proving failed GAS SAFETY SYSTEM 1000S S amp S 000000000 NORTHERN www snsnorthern com Pressure Low LED Under normal working conditions this LED is off LED will illuminate YELLOW when pressure of the gas supply drops below 12mBar for 10 secs Gas valve will close OFF OK YELLOW gas supply pressure low Timeout LED
3. C 5 Gas pressure transducer power supply and returned signal supplied 6 Remote EM Stop buttons and Fire Alarm input wired in series purchased separately VOLT FREE INPUT 7 Methane CO or LPG Detector power supply and volt free input purchased separately 8 Fan Switch output purchased separately For wiring instruction see Fan Switch user manual 9 CO2 Monitor purchased separately VOLT FREE INPUT 10 Permanent 12VDC output Please note Mains wires and low voltage wires should not be run in the same ductwork as per the LOW VOLTAGE DIRECTIVE GAS SAFETY SYSTEM 1000S
4. SS 000000000 NORTHERN www snsnorthern com 1000S USER amp INSTALLATION GUIDE Product description The Merlin 1000S is a Gas Interlock and Electric utility isolation panel with gas proving The system comprises a control panel and a gas pressure sensor The Merlin 1000S can receive connections from remote emergency shut off buttons gas detector and CO2 monitor It also can be integrated with a BMS and fire alarm It is recommended that the user reads this guide before using the system Please do NOT attempt to operate the unit until the contents of this document have been read and are thoroughly understood Warning The CO2 Monitor MUST be mounted close to combustion area GAS SAFETY SYSTEM 1000S S amp S 000000000 NORTHERN www snsnorthern com HOW TO TURN THE SYSTEM ON AND OFF 1 Turn the key switch to On position Unit will beep and CO2 High LED will flash 3 times if CO2 Monitor is NOT installed 2 Gas and Electric LEDs will flash for 10secs 3 Press relevant service button to turn required utility On or Off Please Note Gas and Electric services can be turned On or Off only within 10 secs of the key switch being turned On After 10 secs utility buttons will be disabled The user must turn the key off and back on to adjust any services 4 To turn the system Off turn the key switch to Off position EXPLANATION OF LED STATUS Power LED When the system is connected to the mains supply the Red LED
5. able if Fan Switch is not installed GAS FILL AND PROVE TIME Gas fill and prove times are adjustable There are two blue dip switches located on the inside facia of the Merlin 1000S labelled Fill Time and Prove Time They are factory set in the off position Fill and prove time can be changed by turning the relevant dip switch to on position Fill time Off 5 secs On 10 secs Prove time Off 30 secs On 50 secs AUTO RESET The Merlin 1000S has a built in Auto Reset feature There is a blue dip switch located on the inside facia of the Merlin 1000S labelled Auto Reset This is factory set in the off position When the power is restored after the power cut panel has to be restarted manually On installation this can be switched to the on position if required This will instruct the system to restart automatically when power is restored after the power cut Note Only Gas will be turned On when power is restored and Auto Reset is enabled AUTO SHUT DOWN The Merlin 1000S has a built in Auto shut down feature and it will turn itself off after predefined time Auto shut down timeout is selectable There are two blue dip switches located on the inside facia of the Merlin 1000S labelled Time1 and Time2 They are factory set in the off position On installation they can be switched to the on position to select required timeout Time1 Off Time2 Off 2 hours Time1 On Tim
6. e2 Off 4 hours Time1 Off Time2 On 8 hours Time1 On Time2 On no timeout auto shut down disabled 4 GAS SAFETY SYSTEM 1000S S amp S 0800000000 NORTHERN www snsnorthern com On Auto shut down gas supply will be turned Off There is a blue dip switch located on the inside facia of the Merlin 1000S labelled Electric This switch is factory set in the off position On installation it can be switched to the on position This will instruct the system to also turn off Electric service when performing Auto shut down CONTACT US S amp S Northern Tel 44 0 1257 470 983 Fax 44 0 1257 471 937 www snsnorthern com info snsnorthern com South East Division Tel 44 0 1702 291 725 Fax 44 0 1702 299 148 south snsnorthern com GAS SAFETY SYSTEM 1000S S amp S 000000000 NORTHERN www snsnorthern com 1000SW Wiring Diagram lt lt _ _ i LOI VOLTACE ONLY _ 8 9 10 LJ Led Lt Lay 8 t IN L I t O a i O GAS ELECTRIC SUPPLY FAN EXTRACT FAN PRESSURE EM coz VALVE CONTACTOR PD SWITCHES PD SWITCHES BMS OUT SENSOR Remote 9X8 DETECTOR IFS 7273 4 monitor Le OC Gas Detector Pressure Transducer CO2 Monitor Electric EM Gas Valve Contactor Stop 1 Mains Input 230V Single Phase 2 Gas Solenoid Valve Power Output 230VAC Max 3A 3 Electric Contactor Power Output 230VAC Max 3A 4 BMS output contacts Common Normally Closed and Normally Open Max 1A 230VA
7. s supply There is a blue dip switch located on the inside facia of the Merlin 1000S labelled BMS Selection This is factory set in the off position which signals the BMS on gas on gas off When switched to the on position the Merlin 1000S will only signal the BMS on a fault i e CO2 high level detected EM Stop pressed etc GAS SAFETY SYSTEM 1000S S amp S 000000000 NORTHERN www snsnorthern com FIRE ALARM INTEGRATION The Merlin 1000S can be integrated with a fire alarm to close the gas supply automatically in the event of a fire The fire alarm can be wired in series with any remote emergency shut off buttons FAN SWITCH INTEGRATION There is the facility to connect a Fan Switch sold separately The Fan Switch provides the facility to turn on the fan s when the key switch on the Merlin 1000S is in the on position and turn the power off to the fan s when the key switch on the Merlin 1000S is in the off position There is a blue dip switch located on the inside facia of the Merlin 1000S labelled EM Selection This is factory set in the off position which instructs the system to shut down the fan s and gas supply on activation of the Emergency shut off button s On installation this can be switched to the on position if required This will instruct the system to leave the fans on and only shut off the gas supply on activation of the Emergency shut off button s Note This option is not avail
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