ALS installation and operating instructions
Contents
1. f dampers baffles or any other device that restricts the airflow are fitted set these at the level at which the current displayed is at the lowest value e Access the parameter menu by holding button 3 then pressing button 4 at the same time e Enter the extract fan high passcode 2211 e The display will prompt Set Extract Lo e Press 1 to accept the current reading press 2 to cancel The system will store the instantaneous fan current multiplied by the Under Lmt adjustable via the Engineering Parameters e The extract fan high current limit can be adjusted via the Fan Parameters 9 4 Set the supply fan high current e Repeat the process for setting the extract fan high current with the supply fan e The supply fan high passcode is 1122 9 5 Set the supply fan low current e Repeat the process for setting the extract fan high current with the supply fan e The supply fan high passcode is 1112 11 10 5 10 1 Resetting the ALS3 to default values To clear all settings and restore the unit to factory defaults power up the unit while holding down both the START and STOP buttons When the ALS3 powers up will be shown on the display Power down the unit When the ALS3 is next powered up all parameters will have returned to default values 10 2 Accessing the Parameter Menus The parameter menus are accessed from the main operating screen Hold button 3 then press button 4 at th2. e Fit an external e stop circuit as detailed in the wiring diagram section 11 or fit a link Fire alarm optional e Connect as detailed in wiring diagram section 11 or fit a link Aux input optional e Connect a flame fail detector or air flow switches as detailed in the wiring diagram section 11 or fit a link 2 Contents 1 QUICK SE T 1 Ses fesse cee ete de cde ap ate eee eet Peete ate 2 4 3 General description east 5 a aa Neate O 5 5 5 6 0 6 Basic Operating CyCle ss ET 6 6 1 a ae 7 a 7 6 3 2 ae ed ee nde ive 7 6 4 eee dee EL es Re od ee eed 7 8 Fall AGUVE AIANMS 8 FZ 8 8 DIP Switch Settings nists ine eed ee ee 9 8 1
3. GAS SOLENOID VALVE SUPPLY FAN 1 REMOVE LINKS 400V SUPPLY POWER SUPPLY FROM ANOTHER SOURCE 71 230V POWER SUPPLY FUSED NTE TL BMS RELAY VALVE EXTRACT FOR USE OF C2W CO2 SENSOR SEE C2W INFORMATION AUX GAS 2 SENSOR INPUT ALARM STOP PROVE l 1 1 REMOVE LINKS WIRE AIRFLOW SWITCH FIRE ALARM AND EMERGENCY STOP AS REQUIRED THESE MUST A VOLT FREE CONTACT AIRFLOW EMERGENCY SET TO THE OFF POSITION DO NOT APPLY ANY EXTERNAL VOLTAGE 15 11 3 Wiring diagram C2W 2 sensor TTI BMS TEST GAS 240V SUPPLY RELAY VALVE VALVE RAOT WITHIN ALS3 PANEL Fre Em 5 Aan Sep PRE WIRED gt 5 C2W WIRING ROOM 2 DETECTOR SCREENED CABLE REMOVABLE C2W REAR FIXING PLATE USE THESE MOUNTING POINTS WHEN FIXING TO THE WALL 3mm ENSURE THAT HEADS OF THE FIXING SCREWS ARE NO LARGER THAN 3mm TO AVOID DAMAGE TO THE PCB C2W MOUNTING SCREENED CABLE OUTLET OPTIONS 16 12 Contact Details Neatafan Ltd Unit 12 Solent Industrial Estate Shamblehurst Lane Hedge End Southampton 5030 2FX Tel 01489 783783 Fax 01489 788048 Email info als3 co uk www als3 co uk Manual issued 01 07
4. Location of DIP Switches ssc cee vse de ee he 9 8 2 9 8 3 DIP switchi settings e tee ee i ee Re i le 9 fea stevens ney Senter 10 9 1 5 ete ie ide ee een 10 9 2 Setting the extract fan high current ceeeeeeeeeeseeeeseeeeeaeeceaeeeeaeeceaeeeaeeseaeessaeeceaeeesaeeseaeeeaeeseaeeenaeeseaeeeatens 10 9 3 Set the extract low Curent 11 9 4 Set the supply fan high 11 9 5 Set the supply fan low seed ce eves 11 AO Parameters 12 10 1 Resetting the ALS3 to default 12 10 2 Accessing the Parameter 12 10 3 Editing the Parameters 12 LOA NS ancien Fal Devens tees ee 13 10 5 Fan Parametersy 13 Wiring dlagrams ee
5. a high CO2 level Gas off Fans run on CO2 Sensor The external CO2 sensor is not connected 15 Gas off Fault faulty Fans run on Proving Failed The gas proving sensor indicated no gas Gas off pressure at the end of the proving cycle Fans run Sup Fan Low The supply fan current is below the lower limit Gas off Fans run Sup Fan High The supply fan current is above the upper limit Gas off Fans run Ext Fan Low The extract fan current is below the lower limit Gas off Fans run Ext Fan High The extract fan current is above the upper limit Gas off Fans run Flame Failure The device connected to AUX INPUT is Gas off indicating a fault Fans off 7 3 BMS relay The normally open NO contacts of the BMS RELAY will close on start up and open on any fault condition This relay can also be used as a volt free start signal for Neatafan TC Electric Duct Heaters Electric Heater Batteries 8 DIP switch settings 8 1 Location of DIP switches Dip switches located inside the front panel 8 2 Default setting On delivery all DIP switches are in the OFF position 8 3 DIP switch settings DIP Switch OFF ON 1 not used not used 2 2 detector not fitted CO2 detector enabled 3 Current alarms shut off the gas Current alarms are warning valve only 4 Gas proving disabled Gas proving enabled 9 Fan current limits 9 1 Setting the fan currents The most straig
6. 10 5 Fan Parameters The fan parameters passcode is 4444 Parameter Details Range Default S Fan Hi The supply fan high current limit 0 0 to 20 0 12 0A Amps A S Fan Lo The supply fan low current limit 0 0 to 20 0 0 0A a low current of zero indicates the fan Amps is not fitted E Fan Hi The extract fan high current limit 0 1 to 20 0 12 0A Amps E Fan Lo The extract fan low current limit 0 1 to 20 0 0 1A Amps 13 11 1 Wiring diagram single phase fan EXTRACT FAN 230V FAN GAS SOLENOID VALVE SUPPLY l r FAN 1PH 11 1 11 1 11 230V POWER SUPPLY FUSED ACCORDING TO THE COMBINED FAN CURRENTS 2A MAXIMUM 25 BMS TEST GAS RELAY VALVE VALVE FOR USE OF C2W 2 SENSOR SEE C2W INFORMATION AUX FIRE GAS CO2 SENSOR INPUT ALARM STOP PROVE ll 11 REMOVE LINKS WIRE AIRFLOW SWITCH 1 i FIRE ALARM AND EMERGENCY STOP AS REQUIRED THESE MUST A VOLT FREE CONTACT AIRFLOW REMOTE y SET TO THE OFF POSITION DO NOT APPLY ANY EXTERNAL VOLTAGE i STOP 14 11 2 Wiring diagram three phase fans EXTRACT FAN IMPORTANT 5 ALARMS 400V 3PH EXTRACT FAN 21 ____ POWER SUPPLY ANY FAN POWERED FROM ANOTHER FROM ANOTHER SOURCE SOURCE SHOULD BE SWITCHED ON 230V BEFORE THE GAS ALARM PANEL
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8. ALS Ventilation amp Gas User Guide Safety Interlock The gas interlock system for commercial kitchens Installation Operating Instructions Tel 01489 783783 Fax 01489 788048 Email info als3 co uk www als3 co uk Neatafan Ltd Unit 12 Solent Industrial Estate Shamblehurst Lane Hedge End Southampton 5030 2FX 1 Quick set up guide Power supply Fuse the 230Vac power supply according to the fan currents 2A Maximum 25A e Connect as detailed in wiring diagram see section 11 Gas valve e Connect 230Vac gas solenoid valve as detailed in wiring diagram section 11 Extract fan Connect fan as detailed in the wiring diagram section 11 Set the fan current limits as detailed in section 9 Supply fan if fitted e Connect fan as detailed in the wiring diagram section 11 Set the fan current limits as detailed in section 9 C2W Carbon Dioxide Sensor optional e Connect the C2W sensor as detailed in wiring diagram section 11 Set DIP switches 2 and 3 see section 8 Set Limit in the Engineering Menu see section 10 4 Gas Proving Interface optional Connect 230Vac test valve and Dungs pressure switch input as detailed in the wiring diagram section 11 Set DIP switch 4 see section 8 If required set the Test Fill time in the Engineering Menu section 10 4 Emergency stop optional
9. Ga CS dc en ed 14 11 1 Wiring diagram single phase 14 11 2 Wiring diagram three phase 15 11 3 Wiring diagram C2W CO2 16 T2 Contact 17 3 General description The ALS3 is a gas interlock system for commercial kitchens It interlocks the gas supply with the Kitchen ventilation system Maintaining the integrity of the kitchen ventilation system is critical for a safe working environment and this is detailed in British Standards BS6173 2009 The ALS3 is the straightforward way to help you to achieve compliance with this and other standards All Neatafan products are provided with a comprehensive one year warranty For more information contact Neatafan Contact details are at the end of the manual 4 Safet To reduce the risk of electrical shock isolate the control panel before opening the cover The ALS3 gas interlock is designed for indoor use as described in this manual Using this product for any other purpose other than that for which it was designed may cause harm and will invalidate the warranty The ALS3 must be installed by a suitably qualified engineer If you are unsure about the safe operation of this product contact Neatafan for advice Contact details are at the end of this manual Neatafan takes great care to ensure you
10. e same time Enter the four digit pass code by using keys 1 4 To exit the menu hold button 3 then press button 4 at the same time The main operating screen will be displayed 10 3 Editing the Parameters To edit the parameter displayed e Press 1 to increment the value e Press 2 to decrement the value e Press 3 to move to the previous parameter e Press 4 to move to the next parameter 12 10 4 Engineering Parameters The engineering passcode is 1111 Parameter Details Range Default Fan Start The time allowed for an optional airflow 1 to 100 10 device on AUX INPUT to confirm the seconds seconds fans are running Test Fill The time that the gas TEST VALVE 1 to 10 2 seconds opens at the start of the gas proving seconds cycle Proving The time allowed after the test fill 1 to 10 10 period before the GAS PROVE seconds minutes SENSOR is checked Run On The time that fans will run on after 1 to 20 2 minutes shutting off the GAS VALVE due toa minutes high fault Over Lmt The percentage above the Fan Hi 105 to 150 120 current at which an alarm is generated Under Lmt The percentage below the Fan Lo 75 to 95 80 current at which an alarm is generated Holdoff The time which the fans are allowed to 1 to 50 2 minutes run before current monitoring begins minutes CO2 Limit The threshold for the CO2 level at 1500 2500ppm which the gas will shut off 2600ppm
11. htforward way to set the current limits for the supply and extract fans is to use the inbuilt wizard Please note the system will not run safely unless the ALS3 has been configured with the appropriate fan currents While setting the fan currents the system should be operated with the default current parameters This prevents the system from shutting down and reporting spurious alarms Carry out the following procedure to set the fan currents 9 2 Setting the extract fan high current Observe the fan current displayed on the screen If speed controllers are fitted run the fan to the speed at which the current displayed is at the highest level If dampers baffles any other device that restricts the airflow is fitted set these at the level at which the current displayed is at the highest value Access the parameter menu by holding button 3 then pressing button 4 at the same time Enter the extract fan high passcode 2221 The display will prompt Mia Press 1 to accept the current reading press 2 to cancel The system will store the instantaneous fan current multiplied by the Over Lmt adjustable via the Engineering Parameters The extract fan high current limit can be adjusted via the Fan Parameters 10 9 3 Set the extract fan low current e Observe the fan current displayed on the screen f speed controllers are fitted run the fan to the speed at which the current displayed is at the lowest level
12. r ALS3 gas interlock system reaches you in perfect condition After unpacking please check for any damage to the unit retaining any packing materials should the unit need to be returned 6 Operating cycle Basic operating cycle Press the START button to start the fans and enable the gas Press the STOP button at and time to return the system to the Off state All timers D are set from the Engineering Menu The fans are off and the gas valves are closed Press START The fans are turned on Fan Start Fan pressure switches optional AUX INPUT close The TEST VALVE is opened for Test Fill Pro ving GAS PROVE SENSOR is healthy GAS VALVE on Current monitor after Holdoff Press STOP 6 1 Current Monitoring The extract and supply fan currents are displayed on the screen in Amps A Once running the system waits for Run On minutes for the fans to settle before monitoring the fan currents If the fan currents exceed the Fan Hi levels an alarm is raised However the gas valve will only be shut off if DIP switch 3 is OFF Similarly if the fan currents drop below the Fan Lo levels an alarm is raised However the gas valve will only be shut off if DIP switch 3 is OFF 6 2 Proving Gas proving is enabled by setting DIP switch 4 to ON When the fans have started Gas Proving Fill is displayed and the gas TEST VALVE is opened for Test Fill seconds to p
13. ressurise the installation The system then waits for Proving seconds before checking the signal on the gas proving input An alarm is raised if the pressure has not been maintained 6 3 CO2 Detector optional When DIP switch 2 is ON and a C2W Carbon Dioxide sensor is fitted the CO2 count in parts per million ppm is displayed on the screen along with the fan currents Please note the ALS3 is only compatible with the C2W CO2 sensor 6 4 System Shutdown Under normal operating conditions press the STOP button to shut down the system a controlled manner If the emergency stop button on the ALS3 is pressed an external E STOP is activated or the FIRE ALARM input is activated then the GAS VALVE will shut off and the fans will immediately stop The emergency stop buttons should only be used in an emergency 7 1 Active Alarms Active alarms are shown on the display e Press 2 to silence the audible alarm siren The alarm will sound again three hours later to remind you of the fault e Press 1 to reset the system once the alarm has been cleared 7 2 Alarm messages Alarm Details Action E Stop Pressed Either the emergency stop button the front of the Gas off ALS3 has been pressed an emergency stop Fans off button on the external circuit has been pressed Fire Alarm The external fire alarm contact is open Gas off Fans off 2 Level High The external sensor indicates
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