background image

 6

 

00250

 

 

Unused 

OFF 

OFF 

OFF 

OFF 

Unused 

ON 

OFF 

OFF 

OFF 

Unused 

OFF 

ON 

OFF 

OFF 

Fan Fault - FF 

ON 

ON 

OFF 

OFF 

EM Stop - ES 

OFF 

OFF 

ON 

OFF 

Fire Panel Active -FA 

ON 

OFF 

ON 

OFF 

High Alarm (Any State) - HA 

OFF 

ON 

ON 

OFF 

Low Alarm (Any State) - LA 

ON 

ON 

ON 

OFF 

Gas On  State 

OFF 

OFF 

OFF 

ON 

Detector Fault 

ON 

OFF 

OFF 

ON 

Generic Fault (FF,ES,FA,HA 

OFF 

ON 

OFF 

ON 

Key Switch State 

ON 

ON 

OFF 

ON 

There are five relays on the system which can be used for connecting to a BMS or sounder/Beacon etc., these 
can be set for switching to various conditions using the table below. There are two mains rated (

AUX

) and three 

SELV (

BMS

 
Two Mains rated (230v 5amps) 
Three SELV relays. (48 volts 1 amp) 
 

AUX 1

 and 

BMS A

: are set using switch 

17 

AUX 2

 and 

BMS B

: are set using switch 

18

 

 

BMS C

: Fixed condition, changes state on Gas Switch On/Off only. 

 
Settable conditions via dip switches (One condition selectable for each pair of relays)  

     BMS Relay Mains & SELV PCB 

System Settings 

AGDS-MC 

v2

 

18 

17 

Summary of Contents for AGDS-MC v2

Page 1: ... switch ventilation on via a relay Before commencing installation please familiarise yourself to the equipment by reading the comprehensive installation instructions If in doubt then please call 0161 233 0600 Out of hours please call 07894 684080 or 07843 355163 It is a statutory requirement that this safety system is installed and commissioned to the satisfaction of the manufacturer A commissioni...

Page 2: ...tectors are set to alarm at 5 LEL pre alarm and 10 LEL for the high alarm Carbon Monoxide detectors are set to alarm at 20ppm pre alarm and 30ppm for high alarm Carbon Dioxide detectors have settable high alarms of 1500 2200 4000 5000 PPM s Oxygen depletion detectors are set to alarm at 19 5 pre alarm and 18 high alarm Connect a detector to the detectors terminals 11 12 each detector has a rotary ...

Page 3: ...14 0 10 volt output to fan speed controllers based on CO2 and temperature levels 15 SELV Output for low power beacons toners Set using switch 26 16 Enable Disable internal toner 17 BMS relays settings for relays AUX 1 5 and A See page 6 18 BMS relays settings for relays AUX 2 6 and B See page 6 19 See page 7 20 Fan comm button enables commissioning of the gas supply without fans running 21 Learn f...

Page 4: ...would always recommend using screen cable if the distance between the main panel and the detectors is greater than 20metres a 1mm screened cable must be used on the VE 0v terminals Gas detectors require a four core screened Belden type security cable or 600v rated BMS cable max cable length of 100meters Remote emergency stops and thermal links require a two core screened cable Warranty will be voi...

Page 5: ...ould be wired in series with the EM stop buttons To EM Stop connections in the panel Indicator bar shows when pressed Normal EM Stop Activated Multiple Stop Buttons Single Stop Buttons Resetting indicator bar The stop buttons supplied by Medem are of a Push Glass key resettable style when activated a yellow indicator bar will show and the unit will require resetting using the key provided Multiple...

Page 6: ...There are five relays on the system which can be used for connecting to a BMS or sounder Beacon etc these can be set for switching to various conditions using the table below There are two mains rated AUX and three SELV BMS Two Mains rated 230v 5amps Three SELV relays 48 volts 1 amp AUX 1 and BMS A are set using switch 17 AUX 2 and BMS B are set using switch 18 BMS C Fixed condition changes state ...

Page 7: ...ngs Medem UK Ltd would always recommend an onsite risk assessment be carried out before any changes are implemented 28 OPT A Spare OPT B Auto restart on power failure and fire alarm off by default 2MAR Two minute delay to the auto restart allows downstream appliances flame failure devices to close OPTX Spare 27 OP C Disables isolating gas on CO2 high alarm CM CO still isolate as normal OP D OP E C...

Page 8: ...et gas that is being monitored for See the gas detectors own instructions for more guidance VE supply Comm s From either the main panel Address Selector Each detector must be set to its own address And then learnt using button 21 Connection and addressing Status LED All current wiring regulations must be followed with reference to running low and mains voltage cables together The maximum cable len...

Page 9: ...bove standing head height and between 1m and 3m from the potential source Care should be taken so they are not located close to the edge of a canopy or in direct flow of the supply or extract ventilation For additional information or guidance on site specific requirements please don t hesitate to contact us Each detector has its own Bi Colour LED which is used to indicate the status of that detect...

Page 10: ...plier Medem UK will exchange faulty valves for return to the manufacturer 5 Where a Medem UK engineer or another company appointed by Medem UK commission and installed system then that system will carry a ten year warranty This applies to the main panel and the sender unit At the time of commissioning a security label with a serial number will be attached to the main panel box photographs and a co...

Page 11: ...g this once allows the panel to learn how many and which type of detectors are fitted 8 Press the Detectors button on the front panel and check on the display that all the detectors have been recognised by the system A recognised detector will appear as CMOX CDOX CMBS or OXYG with the detector reading now to it Use the UP and Down buttons to page through the detector listing to check all addresses...

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