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Medem (UK) Limited  
Project House, 19 Dallimore Road, 
Roundthorn Industrial Estate, 
Manchester, M23 9NX 
 

Tel: +44 (0) 161 233 0600     
Fax:+44 (0) 161 233 0601      
www.medem.co.uk 
e-mail:[email protected]

 

Cert No. 10213 

 

 
 
 
 
 
 
 
 
 
 
 
Close the gas appliance and re-test the gas.. The gas test should successfully complete, if the gas 
test fails and you have checked all appliance are off you have a gas leak and require a gas 
engineer to check the pipe work..  
 
With the gas proven and available for use, breathe onto the CO2 sensor (where fitted): 

The system will indicate a rise in CO2 and advise the operator to increase any available ventilation. 
Or the SEC-K system will attempt to increase the ventilation (where the feature has been connected) 
If this is not done and a level of CO2 remains present at the sensor the panel will go into a high 
alarm condition and isolate the gas supply. 
 

The systems are currently set to 2300ppm low alarm and 2800ppm high alarm. 

All of these procedures are dynamically carried out by the SEC-K system each and every time it is 
switched on. The system should only be turned on during service and switched off when the gas is 
not in use so the gas supply remains isolated. 
  
There should be a manual operational test on any installed Emergency stop buttons, which when 
operated will isolate the gas supply and remain isolated until a manual reset is completed. 
 
If utilized an auto stop time out will isolate the gas after the set period (default disabled). 
 
A yearly test and inspection of the solenoid valve and let by test should be carried out by a qualified 
technician i.e. Gas safe registered engineer. 

The system should be switched off using the main system on/off switch at the end of a service so a 
new pressure test can be completed ensuring there are no leaking appliances or appliances left 
on. 

Due to the Medem SEC-K being a digital system that checks its self every time it is switched on 
there are no recalibration requirements. 

If fitted the detectors are designed to have very low drift so recalibration on site is not required but 
should be replaced every 5 years in a clean environment but consideration should be given to 
replacement after 3 years if contamination is a possibility. A functionality test should be carried out 
every 6-12 months.  

The gas and electric supply are controlled by the soft touch switches after the panel has been 
enabled with the system switch position set to ON 

 

 

If at any time there is an alert or the sounder sounds follow the on screen instructions, 
further information can be found both in the installation instructions and by contacting 
Medem (UK) Ltd.

 

 
 
 

 

 

 

 

 
 

Содержание SEC-K

Страница 1: ...The Home of Control Automation in Ireland SEC K Multi Function Control System for Kitchens...

Страница 2: ...use Each services can be individually controlled using the tactile buttons on the panel with overall secure isolation provided by the main on off switch Gas detectors for carbon dioxide and temperatur...

Страница 3: ...by testing for leaks and open appliances before allowing gas available by using Medem patented true differential gas pressure measuring across the solenoid valve This eliminates nuisance tripping of t...

Страница 4: ...Gas Pressure Proving Using the patented differential pressure proving method the SEC K can test for low pressure natural LPG gas pipe work or can pressure prove a variety of gas delivery lines includ...

Страница 5: ...d extra low voltage The connections marked CM2 or PD switches are for the connection of a current monitor or pressure switches for interlocking fans with the gas supply The connections marked detector...

Страница 6: ...13 Fire alarm input signal N C contact required 14 0 10 volt output to fan speed controllers based on CO2 and temperature levels 15 Two relays for connection to a BMS to indicate high alarm gas on EM...

Страница 7: ...present within the panel N L To Contactor Coil Method 2 IMPORTANT If wired this way a warning notice must be attached to the panel to indicate that there are two separate mains feeds L N Supply in Co...

Страница 8: ...pur 230v EM Stop Buttons TT 70c Series connected Addressable Gas detector Addressable Gas detector 6 core low voltage cable Sender unit Mounts on the gas valve Requires a volt free NC contact 0 10v ou...

Страница 9: ...a Medem engineer this can be increased to 10 years and includes a 24hr helpline During the commissioning process a Medem engineer would attend site to ensure full and correct operation of the supplie...

Страница 10: ...nough to ensure the downstream pipe work comes up to pressure factory default 5 seconds The prove time should be set at installation to find the smallest possible leak factory default 50 seconds To te...

Страница 11: ...ational test on any installed Emergency stop buttons which when operated will isolate the gas supply and remain isolated until a manual reset is completed If utilized an auto stop time out will isolat...

Страница 12: ...r 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 a...

Страница 13: ...ing light yellow B blind button for displaying connected devices detectors temperature on the LCD screen LCD display For displaying system status during both installation and normal use also for displ...

Страница 14: ...evels 15 Two relays for connection to a BMS to indicate high alarm gas on EM stop low alarm One selectable for each relay 16 OPTA Over pressure check will isolate gas supply if pressure exceeds 70 mba...

Страница 15: ...sing button 22 This will bypass the ventilation interlock allowing the gas to be tested the system must not be left in this state and as such is only this for a maxim 24hour period but auto exiting Wh...

Страница 16: ...s Connect multiple detector in parallel fans Medem CM2 2 channel current Monitor 6 core low voltage 1 x 12v fans Fan speed controls Fan Supply 6 core low voltage cable Earth Connections not shown Fan...

Страница 17: ...present within the panel N L To Contactor Coil Method 2 IMPORTANT If wired this way a warning notice must be attached to the panel to indicate that there are two separate mains feeds L N Supply in Co...

Страница 18: ...ble Gas detector 6 core low voltage cable Sender unit Mounts on the gas valve Requires a volt free NC contact 0 10v output for connecting to a fan speed controller fans Medem CM2 2 channel current Mon...

Страница 19: ...ections in the panel TB2 TB1 TB3 Use terminals TB2 A and TB2 C TB2 TB1 TB3 Use terminals TB2 A and TB2 C Multiple Switches Wire in series Remote stop buttons can be connected to the panel terminal mar...

Страница 20: ...alled so they monitor the general level of CO2 within the cooking area They should be mounted above standing head height and between 1m and 3m from the cooking line Care should be taken so they are no...

Страница 21: ...Limited Otter House Naas Road Clondalkin Dublin 22 Tel 00353 1 461 4300 E sales modernplant ie W www modernplant ie Please do not hesitate to call for advice on the following number 00353 1 461 4300...

Страница 22: ...Correct Incorrect Incorrect Never mount the valve such that the Solenoid or Sender Unit are below the horizontal In addition check that the valve is correctly installed with regard to the direction o...

Страница 23: ...IT ON VALVE WALL MOUNTING STRAP PRESSURE SENDER UNIT NOTES Solenoid coil of the valve should never be mounted below the horizontal Pressure sender unit should never be mounted upside down to protect f...

Страница 24: ...safety product range Both companies work closely to ensure the products remain best in class We stock a comprehensive range of Haws AG emergency equipment We also supply special models to the highest...

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