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13/12/2017 

AGDS-4 

Installation Instructions 

 
The AGDS-4 is a four channel gas detection system designed for use in boiler houses. Up to four low voltage 
detectors can be connected for the detection of natural gas, LPG or carbon monoxide. 
 
In the event of a high alarm from one of the detectors, the system will isolate a connected control valve. Low 
alarm indication is also given 
 
It is designed for use primarily in boiler house. 
 
 

 

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 commissioning certificate must be issued to the end user along with instructions for the operation of the 
equipment. 
 
As the Manufacturer Medem UK should commission this safety system whereupon a commissioning report 
will be forwarded to the installing agent who should provide a copy to the end user.  
At the point of our commissioning an individual serial number will be attached to the system along with a 24 
help line number. Photos and all relevant information for the installation will then be stored on the Medem 
site database to be accessed in the event of a call on the 24 hour help line. The warranty period for the 
panel and sender unit will then be extended to Ten years.

 

 

• 

Gas Detection . (Up to four detectors) 

• 

Natural gas, LPG and carbon monoxide 

• 

Remote emergency stops 

• 

BMS relay (high alarm status) 

• 

5 year warranty  - 10 years when commissioned 

AGDS-4 features 

Summary of Contents for AGDS-4

Page 1: ...d and commissioned to the satisfaction of the manufacturer A commissioning certificate must be issued to the end user along with instructions for the operation of the equipment As the Manufacturer Med...

Page 2: ...n Monoxide detectors are pre calibrated at 80ppm pre alarm and 100ppm for high alarm Each detector has a rotary address selector switch 0 F you must use address s 1 4 only Once connected and addressed...

Page 3: ...hane LPG CO 8 Aux Relay potential free contact SELV Only see 11 for settings non latching 9 Jumper link to disable audible alarm sounder 10 High alarm time delay function Controls the length of time b...

Page 4: ...allel All current wiring regulations must be followed with reference to running low and mains voltage cables together The maximum cable length between a detector and the control panel should not excee...

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 indic...

Page 6: ...dual characteristics of the target gas that is being monitored for See the gas detectors own instructions for more guidance AGDS 4 Detector Information VE supply Comm s From either the main panel Addr...

Page 7: ...ng 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 add...

Page 8: ...lier 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 carr...

Page 9: ...3 amp fused spur 240 volt supply to marked terminals 6 When first powered press the reset button to start the system and open the gas valve 7 Once power is connected to the panel the detectors will fl...

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