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S&S Northern Merlin 1000BH User Manual

Gas safety products, gas proving and detection system
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Merlin 1000BH
User Guide
Gas Safety Products
Merlin 1000BH
Gas proving and detection system
User Guide
Please read this guide carefully and retain for future use.
Rev: 07 05-19
1

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Summary of Contents for S&S Northern Merlin 1000BH

  • Page 1 Merlin 1000BH User Guide Gas Safety Products Merlin 1000BH Gas proving and detection system User Guide  Please read this guide carefully and retain for future use.  Rev: 07 05-19...

  • Page 2: Table Of Contents

    Merlin 1000BH User Guide Table of contents General Information ..................3 Circuit Board Terminals ..................4 POWER ........................... 4 GAS VALVE ........................4 GAS DETECTOR 1 & 2 ....................4 PRESSURE SENSOR ......................4 EM REMOTE ........................5 BMS OUT ......................... 5 FIRE PANEL ........................

  • Page 3: General Information

    Merlin 1000BH User Guide General Information The Merlin 1000BH is a gas pressure proving & gas detection panel for use in various applications. The system comprises a control panel and a gas pressure sensor. The Merlin 1000BH can receive connections from remote emergency shut-off buttons, two gas detectors, fire panel and heat detector.

  • Page 4: Circuit Board Terminals

    Merlin 1000BH User Guide Circuit Board Terminals POWER A 100-240VAC electrical supply should be externally fused at 3 Amps and be connected to the terminals marked [LNE POWER] GAS VALVE A gas solenoid valve should be powered using the terminals marked [LNE GAS VALVE].

  • Page 5: Em Remote

    The terminal for fire alarms is detailed on the circuit board as [FIRE PANEL]. These connections are linked out as a factory setting. Fire alarms should be volt free and wired to the Merlin 1000BH using two-core cable. 2.8 TEMP SENSOR The terminal for heat detectors is detailed on the circuit board as [TEMP SENSOR].

  • Page 6: Operation & Setup Guidance

    Building Management System Connection The Merlin 1000BH can be integrated with a BMS to make or break a circuit on gas on/gas off, (valve open or valve closed). This will tell the BMS whether or not electrical power is being sent to the solenoid.

  • Page 7: Auto Reset

     Gas on When the key switch is turned on, the Merlin 1000BH will check the installation for gas leaks. If gas proving is successful, the gas valve will open and the green ‘Gas On’ LED will illuminate. ON = Gas On OFF = Gas Off ...

  • Page 8: Maintenance

    Merlin 1000BH User Guide  Pressure Low Under normal working conditions the LED is off. The LED will illuminate AMBER when pressure of the gas supply drops below 12mBar for 10 secs. The gas valve will close. OFF = OK ON = gas supply pressure low.

  • Page 9: 1000Bh Wiring Spec

    Merlin 1000BH User Guide 1000BH Wiring Spec 1. POWER: Mains supply 100-240VAC. 2. GAS VALVE: Gas Solenoid Valve Power Output, 230VAC, Max 3A. 3. GAS DETECTOR 1 & 2: 12V power supply. VOLT FREE INPUT (detectors sold separately). 4. PRESSURE SENSOR: Red + positive / Black – negative / Blue IN.
  • Page 10 Merlin 1000BH User Guide Rev: 07 05-19...
  • Page 11 Merlin 1000BH User Guide Rev: 07 05-19...

  • Page 12: Manufacturer's Warranty

    Merlin 1000BH 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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