Summary of Contents for S&S Merlin 1500S
- Page 1 Merlin 1500S User Guide Gas Safety Products Merlin 1500S Gas & Ventilation Interlock system User Guide Please read this guide carefully and retain for future use. Rev: 07 05-19...
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Page 2: Table Of Contents
Merlin 1500S User Guide Table of contents General Information .................... 3 Panel Mounting....................... 3 Circuit Board Terminals ..................4 POWER ..........................4 GAS VALVE ........................4 SUPPLY FAN & EXTRACT FAN PD SWITCHES..............4 BMS OUT ........................... 4 EM REMOTE ........................4 GAS DETECTOR ........................ -
Page 3: General Information
General Information The Merlin 1500S is a gas and ventilation interlock panel. The Merlin 1500S can receive connections from up to four external remote air pressure differential switches or current monitors, remote emergency shut-off buttons, gas detectors and a Merlin CO monitor. -
Page 4: Circuit Board Terminals
GAS VALVE The 110-240VAC gas solenoid valve should be powered using the terminals on the Merlin 1500S detailed [GAS VALVE LNE]. SUPPLY FAN & EXTRACT FAN PD SWITCHES These terminals are used to receive an input signal from external air pressure switches or external current monitors. -
Page 5: Gas Detector
Merlin 1500S User Guide GAS DETECTOR These connections can be wired to a Merlin gas detector (LPG, natural gas or carbon monoxide) as shown. If no detector is being used leave the link in between the “ ”. Refer to your detector guide for more information. -
Page 6: Installation & Operation
The Fan Switch provides the facility to turn on the fan(s) when the key switch on the Merlin 1500S is in the on position and turn the power off to the fan(s) when the key switch on the Merlin 1500S is in the off position. -
Page 7: Fire Alarm Integration
Gas On When the fans are running at the correct speed and the key switch is turned on, the Merlin 1500S will open the gas valve and the green ‘Gas On’ LED will illuminate. ON = Gas On OFF = Gas Off ... -
Page 8: Maintenance
Merlin 1500S User Guide Fan Fault Under normal working conditions this LED is off. If a fan fault is present for more than 10 seconds, the LED will illuminate RED. OFF = OK ON = the gas supply has been shut off due to a ventilation fault. -
Page 9: 1500S Wiring Spec
Merlin 1500S User Guide 1500S Wiring Spec 14 15 Detector Monitor Gas Valve Stop PD Switches or Current Switches (Volt Free) POWER: Mains Input 110-240VAC. Single phase GAS VALVE: Gas Solenoid Valve Power Output, 110-240VAC. Max 3A ELECTRIC CONTACTOR: Disabled WATER VALVE: Disabled SUPPLY FAN 1 external pressure differential switch or current switch. - Page 10 Merlin 1500S User Guide Rev: 07 05-19...
- Page 11 Merlin 1500S User Guide Rev: 07 05-19...
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Page 12: Manufacturer's Warranty
Merlin 1500S User Guide Manufacturer’s Warranty 3 Year Limited Warranty Warranty coverage: The manufacturer warrants to the original consumer purchaser, that this product will be free of defects in material and workmanship for a period of three (3) years from date of purchase. The manufacturer’s liability hereunder is limited to replacement of the product with repaired product at the discretion of the manufacture.
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