Merlin CT1750
User Guide
Rev: 07 05-19
1
Gas Safety Products
Gas Proving & Interlock System
Please read this guide carefully and retain for future use.
Page 1: ...Merlin CT1750 User Guide Rev 07 05 19 1 Gas Safety Products Merlin CT1750 Gas Proving Interlock System User Guide Please read this guide carefully and retain for future use...
Page 2: ...7 CO SENSOR 5 2 8 CO2 SENSOR 5 2 9 TEMP SENSOR 5 2 10 EM REMOTE 5 2 11 12vDC 6 2 12 0 10vDC Output 6 3 Installation Operation 6 3 1 System ON and OFF 6 3 2 Using the Emergency Shut Off 6 3 3 BMS integ...
Page 3: ...ving the cover on the panel gives access to the circuit board The PCB should be removed before drilling entry holes into the case Important Warning Statements Never ignore your device when in alarm Th...
Page 4: ...uld be left linked out 2 4 BMS OUT Terminal connections are available on the circuit board for Building Management systems Detailed on the circuit board as BMS OUT N C COM and N O Normally Closed Comm...
Page 5: ...ctor types are available 2 8 CO2 SENSOR This terminal can be wired to CO2 monitor to shut off the system in the event of CO2 being at alarm level If no CO2 monitor is supplied leave the terminal link...
Page 6: ...n off all open gas appliances Turn the Fans On Turn the key switch to on position To turn the system off turn the key switch to off position 3 2 Using the Emergency Shut Off The Emergency shut off but...
Page 7: ...tion of the fire On installation these switches can be switched ON This will instruct the system to leave the relevant fan on and only shut off the gas supply when fire detected 3 5 Gas Fill Prove Tim...
Page 8: ...ugh the speeds until the desired setting is displayed After 5 seconds of no activity the flashing display will turn solid saving the setting and showing current fan speed The default setting is 1 for...
Page 9: ...is checking the integrity of the gas installation upon start up GREEN proving the gas line do NOT operate any appliances during the testing period Test Fail Under normal working conditions this LED is...
Page 10: ...speed Fan 1 Under normal working the LED will illuminate GREEN If a fan fault is detected on fan 1 the LED will be flashing If the LED flashes for more than 20 seconds the gas will shut off GREEN OK F...
Page 11: ...ansducer input 7 FIRE PANEL Supplied by others VOLT FREE INPUT 8 CO SENSOR power supply purchased separately 9 CO2 SENSOR power supply purchased separately 10 TEMP SENSOR Fusible Links purchased separ...
Page 12: ...liable for loss of use of this product or for any indirect special incidental or consequential damages or costs or expenses incurred by the consumer or any other user of this product whether due to a...
